CN210451859U

CN210451859U - Following fixture

Info

Publication number: CN210451859U
Application number: CN201921052741.9U
Authority: CN
Inventors: 王智; 董立忠; 王乐; 杨永修; 齐光辉; 郭华卫; 王显亮; 燕锴; 张桂源; 冯铁鑫
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-05-05
Anticipated expiration: 2029-07-08

Abstract

The utility model relates to the technical field of tool fixtures, in particular to a follow-up fixture, which comprises a base and at least three clamping mechanisms, wherein each clamping mechanism comprises a supporting seat, a supporting chuck and a pressing chuck, the supporting seat is arranged on the base, the supporting chuck comprises a lower mounting seat arranged on the supporting seat and a lower pressing head in spherical hinge with the lower mounting seat, the pressing chuck comprises an upper mounting seat supported by the supporting seat and an upper pressing head in spherical hinge with the upper mounting seat, the lower pressing head and the upper pressing head can be respectively attached to a lower supporting contact surface and an upper supporting contact surface of a part to be clamped, and the lower pressing head and the upper pressing head can freely match with the supporting contact surface of the part to be clamped in a follow-up manner, so that the clamping mechanism can stably clamp the part to be clamped and can not lead the part to be deformed, compared with the prior art, the supporting contact surface of the part to be clamped does not need to be subjected to finish machining, and the machining efficiency of the part to be clamped can be effectively improved.

Description

Following fixture

Technical Field

The utility model relates to a frock clamp technical field especially relates to a follower fixture.

Background

In the processing of weak intensity, yielding part such as foundry goods blank and support, often meet because the precision of the support contact surface of part is relatively poor, the holding surface is nonparallel with the holding surface of anchor clamps, cause anchor clamps holding surface and the unable complete laminating of part support contact surface, when compressing tightly the part through anchor clamps, in order to realize the fixed of part, need in the course of working to support anchor clamps holding surface and part support contact surface compaction, so can lead to the part to warp, and then can lead to the processing benchmark off tracking of part, even if the precision of part processing at the clamping state is guaranteed, nevertheless lift off the part after, the part warp and kick-backs, the reuse three-coordinate is examined size form and position tolerance and has just exceeded standard. Particularly, as the shape and position precision of the casting surface flatness, roughness and the like is not high, the phenomenon of clamping deformation is particularly serious, which is one of the most main processing difficulties of the parts. The existing solution is that the part supporting contact surface is often finished by adopting, the clamp supporting surface and the part supporting contact surface can be attached, however, the finishing process is complicated, errors can be eliminated by multiple times of finishing, and the processing efficiency of the parts is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a pallet to when solving among the prior art to the part that supports the contact surface and warp, need just can guarantee the clamping precision through many times of truing, lead to the problem that part machining efficiency is low.

The utility model provides a pallet, this pallet includes:

a base;

at least three clamping mechanism, clamping mechanism includes the supporting seat, supports the chuck and compresses tightly the chuck, the supporting seat install in on the base, support the chuck including install in lower mount pad on the supporting seat and with the lower compressing head of mount pad ball pivot down, compress tightly the chuck and include through the last mount pad that the supporting seat supported, and with go up the last compressing head of mount pad ball pivot, down compress tightly the head with go up the compressing head can be laminated with the lower support contact surface and the last support contact surface of treating the clamping part respectively.

As the preferable technical scheme of the pallet, the lower mounting seat is in threaded connection with the supporting seat.

As the preferred technical scheme of pallet, the supporting seat includes a plurality of pieces of assembling that connect gradually along vertical direction, wherein, is located the below assemble the piece with the base is connected, is located the top assemble the piece with the mount pad is connected down and is used for supporting go up the mount pad.

As the optimal technical scheme of the pallet, the assembling blocks comprise male heads and female heads which are oppositely arranged in the vertical direction, and the male heads of the assembling blocks positioned above and the female heads of the assembling blocks positioned below are connected in every two adjacent assembling blocks.

As the preferable technical scheme of the pallet, the clamping mechanism further comprises a pressing plate assembly, the pressing plate assembly is mounted on the supporting seat, and the upper mounting seat is mounted on the pressing plate assembly.

As a preferred technical scheme of the pallet, the pressure plate assembly comprises a pressure plate, a supporting bolt and a clamping bolt, the top end of the supporting bolt is in threaded connection with the pressure plate and is located at the first end of the pressure plate, the bottom end of the supporting bolt is supported on the supporting seat, the bottom end of the clamping bolt is in threaded connection with the supporting seat, the top end of the clamping bolt is in inserted connection with the pressure plate, the clamping bolt can rotate relative to the pressure plate, and the upper mounting seat is mounted at the second end of the pressure plate.

As the preferable technical scheme of the pallet, the pressure plate assembly further comprises a first nut in threaded connection with the supporting bolt and a second nut in threaded connection with the clamping bolt, the first nut is abutted against the lower surface of the pressure plate, and the second nut is abutted against the upper surface of the supporting seat.

As the preferable technical scheme of the pallet, the upper mounting base is in threaded connection with the pressing plate.

As a preferred technical scheme of the pallet, the lower mounting base comprises a lower mounting base body screwed to the supporting base and a lower fixing cap screwed to the lower mounting base body, the lower fixing cap and the lower mounting base body form a lower accommodating cavity, and the lower pressing head is located in the lower accommodating cavity;

the upper mounting base comprises an upper mounting base body in threaded connection with the clamping plate and an upper fixing cap in threaded connection with the upper mounting base body, the upper fixing cap and the upper mounting base body form an upper accommodating cavity, and the upper compression head is located in the upper accommodating cavity.

As a preferred technical scheme of the following fixture, a first plane and a second plane are respectively arranged at two ends of the lower pressing head, the first plane and the second plane are connected through a first spherical surface, the first plane is located outside the lower accommodating cavity and is used for being attached to a lower support contact surface of a part to be clamped, and the second plane is located in the lower accommodating cavity;

the two ends of the upper compaction head are respectively provided with a third plane and a fourth plane, the third plane is connected with the fourth plane through a second spherical surface, the third plane is located outside the upper accommodating cavity and is used for being attached to an upper supporting contact surface of a part to be clamped, and the fourth plane is located in the upper accommodating cavity.

The utility model has the advantages that:

the utility model provides a pallet, this pallet includes base and at least three clamping mechanism, clamping mechanism includes the supporting seat, support chuck and compressing chuck, the supporting seat is installed on the base, support the chuck including install on the supporting seat lower mount pad and with the lower compressing head of mount pad ball pivot down, compressing chuck includes the last mount pad that supports through the supporting seat, and with the last compressing head of last mount pad ball pivot, lower compressing head and last compressing head can be laminated with the lower support contact surface and the last support contact surface of treating the clamping part respectively. Through making last clamping head and last mount pad ball pivot, thereby the angle of going up the clamping head can the free rotation, through lower clamping head and lower mount pad ball pivot, thereby lower clamping head can lower mount pad free rotation relatively, when treating clamping part and lower clamping head complex under bracing contact surface and with last clamping head complex on bracing contact surface slope, lower clamping head and last clamping head can freely carry out the retinue matching along with the inclination of the support contact surface of treating the clamping part, guarantee that clamping mechanism can treat the clamping part and stabilize the centre gripping, and still can not lead to treating clamping part deformation, compare prior art, need not to treat the support contact surface of clamping part and carry out the finish machining, can effectively improve the machining efficiency of treating the clamping part.

Drawings

Fig. 1 is a schematic structural view of a pallet in an embodiment of the present invention;

fig. 2 is a schematic view of a part of a structure of a pallet according to an embodiment of the present invention;

fig. 3 is a schematic view of a part of a structure of a pallet according to an embodiment of the present invention.

In the figure:

10. a base; 20. a clamping mechanism; 30. parts to be clamped;

1. a supporting seat; 11. assembling blocks;

2. pressing the chuck tightly; 21. an upper mounting seat; 211. an upper mounting base body; 212. an upper fixing cap; 213. an upper receiving cavity; 22. an upper compaction head; 221. a third plane; 222. a fourth plane; 223. a second spherical surface;

3. supporting the chuck; 31. a lower mounting seat; 311. a lower mount body; 312. a lower fixing cap; 313. a lower receiving chamber; 32. pressing the pressing head downwards; 321. a first plane; 322. a second plane; 323. a first spherical surface;

4. a platen assembly; 41. pressing a plate; 42. a support bolt; 43. clamping the bolt; 44. a first nut; 45. a second nut; 46. a limit nut; 47. a gasket.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 3, the present embodiment provides a pallet including a base 10 and at least three clamping mechanisms 20. The clamping mechanisms 20 are mounted on the base 10, the parts 30 to be clamped are clamped by the clamping mechanisms 20, and when the clamping mechanisms 20 are three, the three clamping mechanisms 20 are distributed in a triangular shape, so that the parts 30 to be clamped can be stably supported. When the number of the clamping mechanisms 20 is greater than three, at least three clamping mechanisms 20 are distributed in a triangular shape in all the clamping mechanisms 20.

The clamping mechanism 20 comprises a supporting seat 1, a supporting chuck 3 and a pressing chuck 2, wherein the supporting seat 1 is installed on the base 10, the supporting chuck 3 comprises a lower installation seat 31 and a lower pressing head 32, the lower installation seat 31 is installed on the supporting seat 1, and the lower pressing head 32 is in spherical hinge with the lower installation seat 31. The pressing chuck 2 comprises an upper mounting seat 21 and an upper pressing head 22, the upper mounting seat 21 is supported through a supporting seat 1, the upper pressing head 22 is hinged to the upper mounting seat 21 in a spherical mode, and the lower pressing head 32 and the upper pressing head 22 can be attached to a lower supporting contact surface and an upper supporting contact surface of the part 30 to be clamped respectively. This embodiment is through making last clamping head 22 and last mount pad 21 ball pivot, thereby the angle of going up clamping head 22 can the free rotation, through lower clamping head 32 and lower mount pad 31 ball pivot, thereby lower clamping head 32 can be relative mount pad 31 free rotation down, when treating clamping part 30 and lower clamping head 32 complex under bracing contact surface and with last clamping head 22 complex on bracing contact surface slope, lower clamping head 32 and last clamping head 22 can freely carry out the retinue matching along with the inclination of the support contact surface of treating clamping part 30, guarantee that clamping mechanism 20 can treat clamping part 30 and stabilize the centre gripping, and still can not lead to treating clamping part 30 and warp, compare prior art, need not to treat that the support contact surface of clamping part 30 carries out the finish machining, can effectively improve the machining efficiency of treating clamping part 30.

Alternatively, when the upper pressing head 22 and the lower pressing head 32 of each clamping mechanism 20 respectively press the part, the upper pressing head 22 and the lower pressing head 32 are respectively located at two opposite ends of the part to be pressed. Therefore, the clamping mechanism 20 can be ensured to stably clamp the part 30 to be clamped.

Optionally, the supporting seat 1 includes a plurality of assembling blocks 11 sequentially connected in a vertical direction, wherein the assembling block 11 located at the lowermost position is connected to the base 10, and the assembling block 11 located at the uppermost position is connected to the lower mounting seat 31 and is used for supporting the upper mounting seat 21. According to the specific shape of the part 30 to be clamped, an appropriate number of assembling blocks 11 can be selected to assemble the supporting seat 1, so that the part 30 to be clamped can be supported on the base 10 through the plurality of supporting seats 1. It is understood that the number of the building blocks 11 may be set to one.

The assembling blocks 11 comprise male heads and female heads which are oppositely arranged along the vertical direction, and in the two adjacent assembling blocks 11, the male heads of the assembling blocks 11 positioned above are connected with the female heads of the assembling blocks 11 positioned below. In this embodiment, the interval is equipped with two through-holes on the public head, and the interval is equipped with two screw holes on the female head, passes two through-holes in the piece 11 of assembling that is located the top respectively through two bolts to with be located the below assemble two screw holes on the piece 11 respectively threaded connection, can assemble together two adjacent pieces 11 of assembling, pass two through-holes that are located the piece 11 of assembling of below respectively through two bolts and with base 10 threaded connection, can fix supporting seat 1 on base 10. In other embodiments, the male and female heads may be configured for a bayonet fitting.

The clamping mechanism 20 further comprises a pressure plate assembly 4, the pressure plate assembly 4 is mounted on the supporting base 1, and the upper mounting base 21 is mounted on the pressure plate assembly 4. The pressing plate assembly 4 comprises a pressing plate 41, a supporting bolt 42 and a clamping bolt 43, the top end of the supporting bolt 42 is in threaded connection with the pressing plate 41 and is located at the first end of the pressing plate 41, the bottom end of the supporting bolt 42 is supported on the supporting seat 1, the bottom end of the clamping bolt 43 is in threaded connection with the supporting seat 1, the top end of the clamping bolt 43 is in threaded connection with the pressing plate 41, the clamping bolt 43 can rotate relative to the pressing plate 41, and the upper mounting seat 21 is mounted at the second end of the pressing plate 41. The pressing plate 41 and the supporting seat 1 are tightened towards the middle by the clamping bolt 43, and the first end of the pressing plate 41 is pressed against the supporting seat 1 by the supporting bolt 42, so that the second end of the pressing plate 41 can be pressed against the upper supporting contact surface of the part to be clamped by the supporting chuck 3. In this embodiment, the pressing plate 41 is provided with an installation through hole, the outer diameter of the clamping bolt 43 is smaller than the inner diameter of the installation through hole, and the clamping bolt 43 is inserted into the installation through hole, so that the clamping bolt 43 can rotate relative to the pressing plate 41, the clamping bolt 43 is screwed with the limit nut 46, the limit nut 46 is located above the installation through hole, and the clamping bolt 43 can tighten or loosen the pressing plate 41 and the support base 1 by screwing the limit nut 46. Alternatively, a washer 47 may be disposed at one end of the limiting nut 46 close to the pressure plate 41, and the pressing nut abuts against the pressure plate 41 through the washer 47.

Optionally, the pressing plate assembly 4 further comprises a first nut 44 screwed on the supporting bolt 42, and a second nut 45 screwed on the clamping bolt 43, wherein the first nut 44 abuts against the lower surface of the pressing plate 41, and the second nut 45 abuts against the upper surface of the supporting seat 1. When the relative position of the supporting bolt 42 and the pressing plate 41 is adjusted to the proper position, the first nut 44 can be screwed with the pressing plate 41 to keep the position of the supporting bolt 42 stable, and when the relative position of the clamping bolt 43 and the supporting seat 1 is adjusted to the proper position, the second nut 45 can be screwed with the supporting seat 1 to keep the relative position of the supporting seat 1 and the clamping bolt 43 stable.

Optionally, the lower mounting seat 31 is screwed with the support seat 1. On the one hand, the height of the lower mounting seat 31 relative to the supporting seat 1 can be conveniently adjusted by screwing the lower mounting seat 31, and on the other hand, the supporting chuck 3 with corresponding size can be conveniently replaced for different types of parts 30 to be clamped. Similarly, the upper mounting base 21 is screwed to the pressing plate 41.

Optionally, the upper mounting seat 21 includes an upper mounting seat body 211 screwed to the clamping plate 41 and an upper fixing cap 212 screwed to the upper mounting seat body 211, the upper fixing cap 212 and the upper mounting seat body 211 form an upper receiving cavity 213 with an open bottom end, and the upper pressing head 22 is located in the upper receiving cavity 213. Optionally, two ends of the upper pressing head 22 are respectively provided with a third plane 221 and a fourth plane 222, the third plane 221 and the fourth plane 222 are connected through a second spherical surface 223, the third plane 221 is located outside the upper receiving cavity 213 and is used for being attached to an upper supporting contact surface of the part 30 to be clamped, and the fourth plane 222 is located inside the upper receiving cavity 213. It will be appreciated that in this embodiment, the upper support contact surface of the part to be clamped 30 is planar. When the upper supporting contact surface of the part 30 to be clamped is in other shapes, such as an arc surface, the third plane 221 can be adjusted accordingly.

In this embodiment, the bottom wall of the upper accommodating cavity 213 is a second limiting plane, the side wall is a spherical surface capable of being matched with the second spherical surface 223, and when the second limiting plane is parallel to the fourth plane 222, the second limiting plane and the fourth plane 222 are arranged at intervals, so that the rotation angle of the upper pressing head 22 can be limited by the second limiting plane, and in this embodiment, the maximum inclination angle between the second limiting plane and the fourth limiting plane is 10 °.

Optionally, the lower mounting seat 31 includes a lower mounting seat body 311 screwed to the supporting seat 1 and a lower fixing cap 312 screwed to the lower mounting seat body 311, the lower fixing cap 312 and the lower mounting seat body 311 constitute a lower accommodating cavity 313 with an open top end, and the lower pressing head 32 is located in the lower accommodating cavity 313. Optionally, two ends of the lower pressing head 32 are respectively provided with a first plane 321 and a second plane 322, the first plane 321 and the second plane 322 are connected by a first spherical surface 323, the first plane 321 is located outside the lower accommodating cavity 313 and is used for being attached to a lower supporting contact surface of the part 30 to be clamped, and the second plane 322 is located inside the lower accommodating cavity 313. It will be appreciated that in this embodiment, the lower support contact surface of the part to be clamped 30 is planar. When the lower support contact surface of the part 30 to be clamped has other shapes, such as a cambered surface, the first plane 321 can be adjusted accordingly.

In this embodiment, the bottom wall of the lower accommodating cavity 313 is a first limiting plane, the side wall is a spherical surface capable of being matched with the first spherical surface 323, when the first limiting plane is parallel to the second plane 322, the first limiting plane and the second plane 322 are arranged at an interval, and the rotation angle of the lower pressing head 32 can be limited by the first limiting plane, in this embodiment, the maximum inclination angle of the first limiting plane and the second limiting plane is 10 °.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A pallet, comprising:

a base (10);

at least three clamping mechanism (20), clamping mechanism (20) include supporting seat (1), support chuck (3) and compress tightly chuck (2), supporting seat (1) install in on base (10), support chuck (3) including install in lower mount pad (31) on supporting seat (1) and with lower compressing head (32) of mount pad (31) ball pivot down, compress tightly chuck (2) including through last mount pad (21) that supporting seat (1) supported, and with last compressing head (22) of last mount pad (21) ball pivot, compress tightly head (32) down with last compressing head (22) can be laminated with the lower support contact surface and the last support contact surface of treating clamping part (30) respectively.

2. Pallet according to claim 1, characterized in that the lower mounting seat (31) is screwed to the support seat (1).

3. Pallet according to claim 1, characterized in that the support base (1) comprises a plurality of building blocks (11) connected in series in the vertical direction, wherein the building block (11) located lowermost is connected to the base (10) and the building block (11) located uppermost is connected to the lower mounting base (31) and is used to support the upper mounting base (21).

4. The pallet according to claim 3, characterized in that the assembling blocks (11) comprise a male head and a female head which are arranged oppositely along the vertical direction, and in two adjacent assembling blocks (11), the male head of the assembling block (11) positioned above is connected with the female head of the assembling block (11) positioned below.

5. The pallet according to claim 1, characterized in that the clamping mechanism (20) further comprises a platen assembly (4), the platen assembly (4) being mounted on the support base (1), the upper mounting base (21) being mounted on the platen assembly (4).

6. The pallet according to claim 5, characterized in that the pressing plate assembly (4) comprises a pressing plate (41), a supporting bolt (42) and a clamping bolt (43), wherein the top end of the supporting bolt (42) is screwed with the pressing plate (41) and is located at the first end of the pressing plate (41), the bottom end of the supporting bolt (42) is supported on the supporting base (1), the bottom end of the clamping bolt (43) is screwed with the supporting base (1), the top end of the clamping bolt (43) is inserted with the pressing plate (41), and the clamping bolt (43) can rotate relative to the pressing plate (41), and the upper mounting base (21) is mounted at the second end of the pressing plate (41).

7. The pallet according to claim 6, characterized in that the press plate assembly (4) further comprises a first nut (44) screwed to the support bolt (42), and a second nut (45) screwed to the clamping bolt (43), the first nut (44) abutting against the lower surface of the press plate (41), the second nut (45) abutting against the upper surface of the support base (1).

8. Pallet according to claim 6, characterized in that the upper mounting seat (21) is screwed to the pressure plate (41).

9. The pallet according to claim 6, characterized in that the lower mounting seat (31) comprises a lower mounting seat body (311) screwed to the support seat (1) and a lower fixing cap (312) screwed to the lower mounting seat body (311), the lower fixing cap (312) and the lower mounting seat body (311) constituting a lower receiving cavity (313), the lower pressing head (32) being located in the lower receiving cavity (313);

the upper mounting base (21) comprises an upper mounting base body (211) in threaded connection with the pressing plate (41) and an upper fixing cap (212) in threaded connection with the upper mounting base body (211), the upper fixing cap (212) and the upper mounting base body (211) form an upper accommodating cavity (213), and the upper pressing head (22) is located in the upper accommodating cavity (213).

10. The pallet according to claim 9, characterized in that both ends of the lower pressing head (32) are respectively provided with a first plane (321) and a second plane (322), the first plane (321) and the second plane (322) are connected by a first spherical surface (323), the first plane (321) is located outside the lower accommodating cavity (313) and is used for being attached to a lower supporting contact surface of the part (30) to be clamped, and the second plane (322) is located inside the lower accommodating cavity (313);

go up the both ends of pressure head (22) and be equipped with third plane (221) and fourth plane (222) respectively, third plane (221) with fourth plane (222) are connected through second sphere (223), third plane (221) are located hold the chamber (213) on and just be used for with the laminating of the last support contact surface of waiting to adorn clamp part (30), fourth plane (222) are located hold the chamber (213) on.