CN211867209U

CN211867209U - Inclined pressing fixing structure and positioning fixture

Info

Publication number: CN211867209U
Application number: CN201921772080.7U
Authority: CN
Inventors: 吴加富; 缪磊; 马伟; 周平; 张羽曦; 郝新姣; 刘宣宣
Original assignee: Suzhou RS Technology Co Ltd
Current assignee: Suzhou RS Technology Co Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-11-06
Anticipated expiration: 2029-10-22

Abstract

The utility model provides a diagonal compression fixing structure, which comprises a fastening component and a first mounting plate; the fastening assembly comprises a driving unit and a pressing unit, the driving unit is arranged on the first mounting plate, and the driving unit drives the pressing unit; the first mounting plate is mounted on the fixed base, so that the pressing unit is inclined relative to the base surface of the fixed base, and the pressure head end of the pressing unit is obliquely pressed on the workpiece, so that the workpiece is fixed; a positioning clamp comprises a plurality of fastening assemblies and a first mounting plate; the device also comprises a plurality of positioning components and a second mounting plate; the positioning assembly is arranged on the second mounting plate; the positioning assembly comprises a positioning pin, and the inclination angle of the positioning pin is consistent with that of the fastening assembly; the positioning pin is used for positioning the position of a workpiece, and the positioning pin and the buffer pressure head are arranged on the same axial direction.

Description

Inclined pressing fixing structure and positioning fixture

Technical Field

The utility model belongs to non-mark anchor clamps field, concretely relates to inclined pressing fixed knot constructs, still concretely relates to positioning fixture.

Background

The workpiece is often provided with special parts with uneven appearance profiles, when the parts are detected, the fixing effect of a common clamp is not ideal, the special parts, particularly the profile surface of a plate-type workpiece, have radian, and the workpiece fixing process is deviated due to small area and unidirectional stress of the stress surface of the arc-shaped surface.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a barocline fixed knot constructs, through the mode of barocline, to two direction application of force of work piece to with the stable compressing tightly of work piece, this mechanism simple structure, the convenient maintenance.

The utility model provides a diagonal compression fixing structure, which comprises a fastening component and a first mounting plate; the fastening assembly comprises a driving unit and a pressing unit, the driving unit is mounted on the first mounting plate, and the driving unit drives the pressing unit;

the first mounting plate is mounted on a fixed base so that the pressing unit is inclined with respect to a base surface of the fixed base, so that a pressing head end of the pressing unit is pressed obliquely against a workpiece, thereby fixing the workpiece.

Preferably, the first mounting plate comprises a boss for bearing the fastening component, the boss comprises a mounting surface for contacting the fastening component and a fixing surface for fixedly connecting with the fixing base, and the fastening component is mounted on the boss so as to enable the fastening component to obliquely press a workpiece.

Preferably, the mounting surface and the fixing surface are inclined relative to each other, so that the pressing unit is inclined relative to the base surface of the fixing base.

Preferably, the first mounting plate is L-shaped, and the thickness of the corners of the first mounting plate is greater than the thickness of the two ends of the first mounting plate.

Preferably, the angle of inclination of the pressing unit relative to the base plane of the fixed base is 5-20 °.

Preferably, the driving unit comprises a first air cylinder, a push rod is connected to the first air cylinder, and the push rod and the pressing unit are connected; the push rod is pushed by the first cylinder, so that the pressing unit moves.

Preferably, the pressing unit comprises a pressing rod and a buffering pressing head used as a pressing head part of the pressing unit, the pressing rod is connected with the push rod, the pressing rod is elastically connected with the buffering pressing head, and the buffering pressing head is inclined relative to the workpiece.

Preferably, a guide unit is mounted at one end of the first cylinder close to the pressing unit, and the guide unit comprises a guide block and a limiting block;

the guide block is provided with a chamfer for guiding, one side of the pressure lever is in contact with the limiting block, and the other side of the pressure lever is in contact with the guide block.

Preferably, the positioning clamp comprises a plurality of fastening assemblies and a first mounting plate; the device also comprises a plurality of positioning components and a second mounting plate; the positioning assembly is mounted on the second mounting plate;

the positioning assembly comprises a positioning pin, the positioning pin is used for positioning the position of a workpiece, and the positioning pin and the buffer pressure head are arranged on the same axial direction.

Preferably, the positioning assembly further comprises a second cylinder and a connecting block, the connecting block is mounted on a movable end of the second cylinder, and the positioning pin is mounted on the connecting block;

the second cylinder drives the positioning pin to move along the axial direction of the buffer pressure head, so that the positioning pin is inclined to be close to a workpiece and finally penetrates through the workpiece to achieve positioning.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides a pair of oblique pressing fixed knot constructs through setting up fastening components for the work piece slope for fastening components's clamp pressing end oblique pressing is on the work piece, thereby the clamp pressing end is to two direction application of force of work piece, makes fixed effect more stable, the utility model discloses convenient to use, simple structure.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic perspective view of a fixing structure according to an embodiment of the present invention;

fig. 2 is an exploded view of a mounting structure according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a positioning fixture according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a positioning assembly according to an embodiment of the present invention;

fig. 5 is a schematic perspective view illustrating a second embodiment of a positioning assembly according to the present invention;

fig. 6 is a front view of the positioning fixture according to an embodiment of the present invention.

Shown in the figure:

120. a fastening assembly; 121. a first cylinder; 1211. a push rod; 122. a guide unit; 1221. a guide block; 1222. a limiting block; 123. a pressing unit; 1231. a pressure lever; 1232. a buffer pressure head; 130. a positioning assembly; 131. a second cylinder; 132. connecting blocks; 133. positioning pins; 141. a first mounting plate; 1411. A mounting surface; 1412. a fixed surface; 142. a second mounting plate; 1421. a bevel.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a more detailed description of the present invention, which will enable those skilled in the art to make and use the present invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1-2, a skew-compression fixing structure includes a fastening assembly 120, a first mounting plate 141; the fastening assembly 120 is installed on the first installation plate 141, the fixing structure is mainly used for fixing plate-type workpieces, the surface of such plate-type workpieces is provided with a radian, the stress direction of a general fixing device is perpendicular to the workpiece due to the radian on the workpiece, the general fixing device enables a pressing surface between the fixing device and the workpiece due to the pressing on the workpiece and fixes the workpiece, and for the plate-type workpieces with the radian, the fixing effect of the fixing device is poor due to the fact that only one contact point exists between the general fixing device and the workpiece due to the radian on the surface of the workpiece;

in this embodiment, the first mounting plate 141 is mounted on the fixed base, the first mounting plate 141 at least includes an inclined surface, due to the inclination of the first mounting plate 141, when the first mounting plate 141 is mounted on the fixed base surface, the clamping end of the fastening assembly 120 mounted on the first mounting plate 141 is inclined with respect to the workpiece, the clamping end contacts the arc surface of the workpiece, the clamping end of the fastening component 120 can be decomposed into forces in two directions, one is the downward pressure of the clamping end on the workpiece, and the other is the thrust of the clamping end pushing the side face of the workpiece, compared with a common fixing device, the forces in multiple directions simultaneously act on the workpiece, so that the fastening component 120 can stably fix the workpiece on a base plane; wherein the fastening assembly 120 includes a power device, and the fastening assembly 120 is driven by the power device such that the fastening assembly 120 automatically clamps the workpiece.

The first mounting plate 141 comprises a boss for bearing the fastening assembly 120, so that the first mounting plate 141 is integrally L-shaped, the thickness of the corner of the first mounting plate 141 is greater than the thickness of the two ends of the first mounting plate 141, the first mounting plate 141 bears the acting force on the fastening assembly 120, and for the sufficient strength of the first mounting plate 141, the strength of the first mounting plate 141 is improved after the corner with weak pressure-bearing energy is used, the boss comprises a mounting surface 1411 for contacting with the fastening assembly 120 and a fixing surface 1412 for fixedly connecting with a fixed base, and the fastening assembly 120 is mounted on the boss, so that the fastening assembly 120 is obliquely pressed on a workpiece; the inclination angle of the fastening assembly 120 is in the range of 5 ° to 20 °, as shown in fig. 6, the G position of the fastening assembly 120 is shown by the black dots on the figure, and in order to avoid the gravity center G shifting to the outer side of the boss, the inclination angle of the fastening assembly 120 needs to be ensured within 20 °, so that the acting force applied to the fastening assembly 120 is applied to the boss, thereby prolonging the service life of the fastening assembly 120.

In one embodiment, the mounting surface 1411 is an inclined surface on the first mounting plate 141, and the fastening element 120 is mounted on the mounting surface 1411 such that the fastening element 120 is inclined relative to the first mounting plate 141, and the first mounting plate 141 is disposed perpendicular to the workpiece.

In another embodiment, the fixing surface 1412 is an inclined surface, and the fixing surface 1412 is used for contacting with the fixing base surface, so that the fixing structure is connected to a fixing position, in which the fastening assembly 120 is mounted on the first mounting plate 141, and the fastening assembly 120 and the first mounting plate 141 are inclined.

The technical means for obliquely pressing the clamping end of the fastening component 120 onto the workpiece includes the technical solutions in the two embodiments but is not limited to the technical solutions in the two embodiments, and the technical solutions for achieving the technical effects of obliquely pressing the clamping end of the fastening component 120 onto the workpiece all belong to the protection scope of the present invention.

In a preferred embodiment, the fastening assembly 120 includes a first cylinder 121 as a power device for driving the crimping end, a pressing unit 123 serving as the crimping end of the fastening assembly 120, the first cylinder 121 being fixed to a first mounting plate 141; the first cylinder 121 is connected with one end of a telescopic push rod 1211, the other end of the push rod 1211 is connected with the pressing unit 123, and the pressing unit 123 is driven by the first cylinder 121, so that the pressing unit 123 is contacted with the workpiece and presses the workpiece.

Wherein, compress tightly unit 123 and include depression bar 1231, buffering pressure head 1232, depression bar 1231 and buffering pressure head 1232 elastic connection, and buffering pressure head 1232 is equipped with the spring as the bolster for work piece slope in the buffering pressure head 1232, compresses tightly the work piece through buffering pressure head 1232, and protection buffering pressure head 1232 and work piece avoid rigid contact process to break down and damage fastening component 120 and/or work piece.

One end of the first cylinder 121 close to the pressing unit 123 is provided with a guide unit 122, and the guide unit 122 comprises a guide block 1221 and a limit block 1222; the guide block 1221 is provided with a chamfer for guiding, one side of the compression rod 1231 is in contact with the limit block 1222, the other side of the compression rod 1231 is in contact with the guide block 1221, the position of the compression rod 1231 is limited by the contact of the inner side wall of the limit block 1222 on the guide unit 122 on the side surface of the compression rod 1231, the other side surface corresponding to the compression rod 1231 is guided by the chamfer on the side surface of the guide block 1221, and finally the compression rod 1231 is adjusted to a fixed position on a limited position inclined pressing workpiece.

As shown in fig. 3-6, a positioning fixture comprises a fastening assembly 120, a first mounting plate 141, a positioning assembly 130, a second mounting plate 142; the positioning assembly 130 is mounted on the second mounting plate 142;

the positioning assembly 130 comprises a positioning pin 133, the positioning pin 133 is used for positioning the position of a workpiece, the positioning pin 133 and the buffering pressure head 1232 are arranged on the same axial direction, the positioning pin 133 penetrates through a positioning hole in the workpiece and contacts with the buffering pressure head 1232, so that the workpiece is limited at a fixed position, and meanwhile, the workpiece is fixed at the fixed position due to the fact that the buffering pressure head 1232 obliquely presses the workpiece, and the effect of clamping the workpiece is achieved.

The positioning assembly 130 further comprises a second cylinder 131, a connecting block 132, the connecting block 132 is mounted on the movable end of the second cylinder 131, and a positioning pin 133 is mounted on the connecting block 132;

order about locating pin 133 along the axial motion of buffering pressure head 1232 through second cylinder 131 for locating pin 133 slope is close to the work piece, thereby finally pass the work piece and realize the location, locating hole axial on the work piece is unanimous with locating pin 133, if cup joint when locating pin 133 through the work piece, because locating pin 133 is the slope setting, locating hole on the work piece is difficult to contact with locating pin 133, therefore, fix a position through the locating pin 133 that removes, locating pin 133 removes to buffering pressure head 1232 contact, thereby make locating pin 133 and buffering pressure head 1232 form the zonulae occludens structure, thereby fixed the work piece, after finishing processing, locating pin 133 and buffering pressure head 1232 are disconnected from being connected, make things convenient for the work piece to take out.

The position where the buffering pressure head 1232 contacts the positioning pin 133 is provided with a groove, the shape of the groove is consistent with that of the positioning pin 133, and when the second cylinder 131 pushes the positioning pin 133 to move, one end of the positioning pin 133 moves into the groove, so that the fixation is completed.

In a preferred embodiment, in order to simulate a clamping process using the positioning jig in a workpiece mounting state, a workpiece is placed on a fixed base plate; the second air cylinder 131 drives the positioning pin 133, so that the positioning pin 133 is connected with the workpiece, and the workpiece is positioned; after the positioning pin 133 is positioned, the first air cylinder 121 drives the pressing unit 123, so that the pressing unit 123 approaches the workpiece; the pressing unit 123 moves to contact with the workpiece, the second air cylinder 131 drives the positioning pin 133 to retract, so that the positioning pin 133 is disconnected from the workpiece, and the pressing unit 123 presses the workpiece, thereby completing the whole clamping step.

Most workpieces can form a complete product after being assembled, the common connection mode among the workpieces is screw connection, in order to simulate the state of the screw connection of the workpieces, common knowledge shows that when the screw fixes the workpieces, the screw applies clamping force to the workpieces, the workpieces deform under the action of the clamping force, the pressing unit 123 simulates the pressure of the screw to the workpieces, the workpieces deform in order to match a front plate, if the workpieces are connected with the positioning pin 133, the positioning pin 133 is matched with a mounting hole on the workpieces, and in the force application process of the pressing unit 123, the positioning pin 133 limits the deformation of a cover plate, so that the pressing force applied by the pressing unit 123 to the workpieces cannot obtain the required simulation effect; meanwhile, the workpiece is not limited by the positioning pin 133, and the workpiece is conveniently taken out of the fixture after the compressing unit 123 is disconnected from the workpiece, so that the time of the detection process is reduced, and the efficiency is improved.

The utility model provides an inclined pressing fixing structure and a positioning clamp, which enable the clamping end of a fastening component to be inclined pressed on a workpiece by arranging the fastening component obliquely relative to the workpiece, so that the clamping end applies force to the workpiece in two directions, and the fixing effect is more stable; the boss is arranged on the first mounting plate, the fastening component is arranged on the boss, and the inclination range of the fastening component is set within 20 degrees, so that the boss on the first mounting plate bears the action of the fastening component, and the service life of the device is prolonged; order about the locating pin through the second cylinder and pass the locating hole on the work piece, make things convenient for the work piece location, the locating pin contacts with the buffering pressure head to form enclosed construction, thereby it is fixed with the work piece, the utility model discloses convenient to use, simple structure.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a barocline fixed knot constructs which characterized in that: comprises a fastening component (120) and a first mounting plate (141); the fastening assembly (120) comprises a driving unit, a pressing unit (123), the driving unit is mounted on the first mounting plate (141), and the driving unit drives the pressing unit (123);

the first mounting plate (141) is mounted on a fixed base so that the pressing unit (123) is inclined with respect to a base surface of the fixed base, so that a pressing head end of the pressing unit (123) is obliquely pressed against a workpiece, thereby fixing the workpiece.

2. A bias pressure fixing structure according to claim 1, wherein: the first mounting plate (141) comprises a boss for bearing the fastening component (120), the boss comprises a mounting surface (1411) for contacting the fastening component (120) and a fixing surface (1412) for fixedly connecting with the fixing base, and the fastening component (120) is mounted on the boss, so that the fastening component (120) is obliquely pressed on a workpiece.

3. A bias pressure fixing structure according to claim 2, wherein: the mounting surface (1411) is inclined relative to the mounting surface (1412) such that the compression unit (123) is inclined relative to the base surface of the mounting base.

4. A bias pressure fixing structure according to claim 2, wherein: the first mounting plate (141) is L-shaped, and the thickness of the corner of the first mounting plate (141) is greater than the thickness of the two ends of the first mounting plate (141).

5. A bias pressure fixing structure according to claim 2, wherein: the inclination angle of the pressing unit (123) relative to the base surface of the fixed base is 5-20 degrees.

6. A bias pressure fixing structure according to claim 1, wherein: the driving unit comprises a first air cylinder (121), a push rod (1211) is connected to the first air cylinder (121), and the push rod (1211) and the pressing unit (123) are connected; the push rod (1211) is pushed by the first cylinder (121) so that the pressing unit (123) moves.

7. A bias pressure fixing structure according to claim 6, wherein: the pressing unit (123) comprises a pressing rod (1231) and a buffering pressing head (1232) used as a pressing head part of the pressing unit (123), the pressing rod (1231) is connected with the push rod (1211), the pressing rod (1231) is elastically connected with the buffering pressing head (1232), and the buffering pressing head (1232) is inclined relative to a workpiece.

8. A bias pressure fixing structure according to claim 7, wherein: a guide unit (122) is mounted at one end, close to the pressing unit (123), of the first air cylinder (121), and the guide unit (122) comprises a guide block (1221) and a limiting block (1222);

the guide block (1221) is provided with a chamfer for guiding, one side of the pressure lever (1231) is in contact with the limit block (1222), and the other side of the pressure lever (1231) is in contact with the guide block (1221).

9. A positioning fixture is characterized in that: comprising a plurality of holding structures for angular displacement as defined in claim 7;

the positioning fixture further comprises a plurality of positioning components (130) and a second mounting plate (142); the positioning assembly (130) is mounted on the second mounting plate (142);

the positioning assembly (130) comprises a positioning pin (133), the positioning pin (133) is used for positioning the position of a workpiece, and the positioning pin (133) and the buffering pressure head (1232) are arranged on the same axial direction.

10. The positioning jig of claim 9, wherein: the positioning assembly (130) further comprises a second cylinder (131), a connecting block (132), the connecting block (132) is mounted on the movable end of the second cylinder (131), and the positioning pin (133) is mounted on the connecting block (132);

the positioning pin (133) is driven to move along the axial direction of the buffer pressure head (1232) through the second air cylinder (131), so that the positioning pin (133) is inclined to be close to the workpiece and finally penetrates through the workpiece to achieve positioning.