CN214322635U - Clamp for machining flywheel housing - Google Patents

Abstract

The utility model relates to an anchor clamps that processing bell housing was used, include: a clamp base defining a clamping machined surface; the self-centering mechanism is arranged on the clamping processing surface and can be abutted against the inner wall of the concave cavity of the flywheel shell; the self-centering mechanism comprises at least three fixed supports, wherein each fixed support is arranged on the clamping processing surface and distributed on the periphery of the self-centering mechanism in a triangular shape, and the same-direction end part of each fixed support can be abutted and positioned with the bottom surface of the cavity. The technical scheme of the utility model be set up on the anchor clamps base from centering mechanism and at least three fixed stay, at the in-process of processing bell housing, from centering mechanism and the tight centering of cavity inner wall counterbalance of bell housing, each fixed stay together to the tip all with the cavity bottom surface looks butt location of bell housing, so set up can avoid influencing the processing because of the unstable cavity degree of depth of bell housing blank, have better processing stability.

Description

Clamp for machining flywheel housing

Technical Field

The utility model relates to a bell housing technical field especially relates to an anchor clamps that processing bell housing was used.

Background

The flywheel shell is one of the parts of the automobile engine, the engine flywheel shell is positioned between the engine body and the gearbox, the engine flywheel shell is arranged outside the engine flywheel and fixedly connected with the engine body and the gearbox, and the flywheel cavity is used for covering the flywheel and plays roles of connecting the engine body, protecting and carrying. The existing flywheel housing is easily affected by unstable depth of the cavity of the flywheel housing blank during processing, so that the processed allowance is unstable, the flywheel housing is scrapped more, manpower and material resources required by screening out defective products at the later stage can be increased, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel anchor clamps that processing bell housing used, this anchor clamps can effectively reduce the unstable influence of bell housing blank cavity degree of depth in the course of working, have better processing stability and suitability, practice thrift the cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a clamp for machining flywheel shells comprises:

a clamp base defining a clamping machined surface;

the self-centering mechanism is arranged on the clamping processing surface and can be abutted against the inner wall of the concave cavity of the flywheel shell;

the self-centering mechanism comprises at least three fixed supports, wherein each fixed support is arranged on the clamping processing surface and distributed on the periphery of the self-centering mechanism in a triangular shape, and the same-direction end part of each fixed support can be abutted and positioned with the bottom surface of the cavity.

Preferably, the jig further comprises: the first pressing oil cylinder is fixedly arranged on the clamping processing surface, and the first pressing plate piece is rotatably connected to one side, far away from the clamping processing surface, of the first pressing oil cylinder; the first pressing oil cylinder is driven, the first pressing plate piece rotates relative to the first pressing oil cylinder, one end, far away from the first pressing oil cylinder, of the first pressing plate piece is overturned to be opposite to the end portion of the fixed support, and therefore the first pressing plate piece and the flywheel housing located at the end portion of the fixed support are pressed in a matched mode through compression joint of the fixed support.

Preferably, the jig further comprises: and the second pressing mechanism is arranged on the clamping processing surface and is adjacent to one fixed support.

Preferably, the jig further comprises: and the angular positioning mechanism is arranged on the clamping processing surface.

Preferably, one end of the first pressure plate piece, which is far away from the first pressing oil cylinder, is provided with a first pressure rod, and the first pressure rod is in press fit with the fixed support.

Preferably, the first pressure plate member is arranged in a Z shape, one end of the first pressure plate member, which is close to the first compression oil cylinder, is rotatably connected to the piston rod of the first compression oil cylinder through a rotating shaft, a hinge portion is formed on one side of the first compression oil cylinder, which faces the first pressure plate member, and the first pressure plate member is rotatably connected to the hinge portion through an adapter plate.

Preferably, the second pressing mechanism includes: the second pressing oil cylinder is fixedly arranged on the clamping processing surface, the second pressing plate piece is rotatably connected to one side, far away from the clamping processing surface, of the second pressing oil cylinder, and the hydraulic support is fixedly arranged on the clamping processing surface; the second pressing oil cylinder is driven, the second pressing plate piece rotates relative to the second pressing oil cylinder, one end, far away from the second pressing oil cylinder, of the second pressing plate piece is overturned to be opposite to the hydraulic support, and therefore the second pressing plate piece and the hydraulic support are in compression fit to be located on the basis of a flywheel housing at the end of the hydraulic support.

Preferably, the hydraulic support is provided with a first support rod, one end of the second pressure plate piece, which is far away from the second compression oil cylinder, is provided with a second compression rod, and the second compression rod is in compression joint with the first support rod.

Preferably, the angular positioning mechanism comprises: the angular jacking oil cylinder and the angular positioning block are parallel to each other and are arranged on the clamping processing surface at intervals; the angular positioning block is provided with an angular positioning support, the angular jacking oil cylinder is provided with a jacking portion which is opposite to the angular positioning support, and the angular jacking oil cylinder can drive the jacking portion to move towards the angular positioning support so as to jack up the angular positioning support and the flywheel shell between the jacking portions.

Preferably, the fixture further comprises a plurality of hydraulic auxiliary supports, each hydraulic auxiliary support is fixedly arranged on the clamping processing surface and distributed around the self-centering mechanism, and a supporting part is formed on one side, far away from the clamping processing surface, of each hydraulic auxiliary support.

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

the anchor clamps that processing bell housing used that provide among the above-mentioned technical scheme, set up from centering mechanism and at least three fixed stay on the anchor clamps base, it is specific, in-process to bell housing processing, from centering mechanism and the tight centering of cavity inner wall counterbalance of bell housing, a syntropy tip of each fixed stay all with the cavity bottom surface looks butt of bell housing location, so set up and can avoid influencing processing because of the unstable cavity degree of depth of bell housing blank, better stability has, the yield of bell housing processing has effectively been guaranteed, also can effectively reduce the manpower and materials that the defective products required consumption was removed in later stage sieve.

Drawings

Fig. 1 is a schematic structural view illustrating a clamping structure of a flywheel housing and a clamp for processing the flywheel housing according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the jig shown in fig. 1.

Fig. 3 is a schematic structural view of the flywheel housing shown in fig. 1.

Fig. 4 is a schematic structural view of the flywheel housing shown in fig. 3 from another perspective.

Fig. 5 is a schematic structural view of the first pressing mechanism shown in fig. 2.

Fig. 6 is a schematic structural view of the second pressing mechanism shown in fig. 2.

Fig. 7 is a schematic structural view of a partial structure of the jig shown in fig. 2.

100. A clamp; 10. a clamp base; 11. clamping the machined surface; 20. a self-centering mechanism; 30. a first hold-down mechanism; 31. a first hold-down cylinder; 311. a piston rod; 312. a hinge portion; 32. a first platen member; 321. a first compression link rod; 33. fixing and supporting; 40. a second hold-down mechanism; 41. a second hold-down cylinder; 42. a second platen member; 421. a second compression link rod; 43. hydraulic support; 431. a first support bar; 50. an angular positioning mechanism; 51. the oil cylinder is pressed tightly at an angular direction; 511. a tightening part; 52. angular positioning blocks; 53. angular positioning support; 60. an adapter plate; 70. hydraulic auxiliary support; 71. a support portion; 200. a flywheel housing; 201. a concave cavity; 202. a fixed angle area.

Detailed Description

The present invention will now be described in more detail with reference to the accompanying drawings, and it is to be understood that the following description of the present invention is made only by way of illustration and not by way of limitation with reference to the accompanying drawings. The various embodiments may be combined with each other to form other embodiments not shown in the following description.

Referring to fig. 1 to 7, an embodiment of the present invention provides a novel fixture 100 for processing a flywheel housing 200, wherein the fixture 100 can clamp the flywheel housing 200, so as to prevent the flywheel housing 200 from being unstable in the processing process due to the unstable depth of the cavity 201, and thus having better processing stability.

The fixture 100 includes at least: the fixture comprises a fixture base 10, a self-centering mechanism 20, a second pressing mechanism 40 and at least three first pressing mechanisms 30. Specifically, a clamping processing surface 11 is defined on the fixture base 10, the self-centering mechanism 20, the second pressing mechanism 40 and each first pressing mechanism 30 are fixedly mounted on the clamping processing surface 11, the self-centering mechanism 20 can be abutted against the inner wall of the cavity 201 of the flywheel housing 200 for centering, each first pressing mechanism 30 is distributed on the periphery of the self-centering mechanism 20 in a triangular shape, and the second pressing mechanism 40 is arranged adjacent to one of the first pressing mechanisms 30, as shown in fig. 1 and 2.

It will be appreciated that the first clamping mechanism 30 adjacent the second clamping mechanism 40 interferes with the action of the tool during machining of the flywheel housing 200. Therefore, in order to avoid the interference of the first pressing mechanism 30 adjacent to the second pressing mechanism 40 with the action of the tool, in the process of clamping the flywheel housing 200, the second pressing mechanism 40 presses the flywheel housing 200, and the first pressing mechanism 30 adjacent to the second pressing mechanism 40 is separated from the surface of the flywheel housing 200, so that the tilting of the flywheel housing 200 caused by the fact that the first pressing mechanism 30 adjacent to the second pressing mechanism 40 does not press the flywheel housing 200 can be avoided, and the flywheel housing has good stability.

In one embodiment, referring to fig. 5, each of the first pressing mechanisms 30 at least includes: the flywheel casing clamping device comprises a first pressing oil cylinder 31, a first pressing plate piece 32 and a fixed support 33, wherein the first pressing oil cylinder 31 is fixedly arranged on a clamping processing surface 11, the first pressing plate piece 32 is rotatably connected to one side, away from the clamping processing surface 11, of the first pressing oil cylinder 31, and the fixed support 33 is fixedly arranged on the clamping processing surface 11 and is abutted and positioned with the bottom surface of a cavity 201 of a flywheel casing 200; when the first pressing oil cylinder 31 is driven to act, the first pressing plate piece 32 rotates relative to the first pressing oil cylinder 31, the first pressing plate piece 32 rotates to a position opposite to the fixed support 33, the first pressing plate piece 32 is in press fit with the fixed support 33 to press the flywheel housing 200 at the end part of the fixed support 33, and the fixed support 33 abuts against the bottom surface of the cavity 201 of the flywheel housing 200. It can be understood that each first pressure cylinder 31 and each fixed support 33 are triangular and surround the periphery of the self-centering mechanism 20, so that each first pressure plate member 32 can be respectively pressed at different pressure joint points of the flywheel housing 200 back to the self-centering mechanism 20, the flywheel housing 200 is fixed and limited, and the unstable depth of the cavity 201 in the machining process can be effectively reduced.

Wherein, a first pressure rod 321 is installed at one end of the first pressure plate 32 away from the first pressure cylinder 31, and the first pressure rod 321 is in press fit with the fixed support 33 to fix and limit the flywheel housing 200. Preferably, as shown in fig. 5, the first platen member 32 is arranged in a Z shape, one end of the first platen member 32 close to the first pressure cylinder 31 is rotatably connected to the piston rod 311 of the first pressure cylinder 31 through a rotating shaft, a hinge portion 312 is formed on one side of the first pressure cylinder 31 facing the first platen member 32, and the first platen member 32 is rotatably connected to the hinge portion 312 through the adapter plate 60. When the first pressure cylinder 31 drives the piston rod 311 to move upwards, the first pressure plate member 32 rotates towards the position where the fixed support 33 is located, the adapter plate 60 rotates in the same direction as the first pressure plate member 32 until the adapter plate 60 is parallel to the piston rod 311, and at this time, the first pressure connecting rod 321 at the end of the first pressure plate member 32 is opposite to the fixed support 33 and presses the flywheel housing 200 placed at the end of the fixed support 33.

In one embodiment, referring to fig. 6, the second pressing mechanism 40 at least includes: second hold-down cylinder 41, second pressure plate 42 and hydraulic support 43, second hold-down cylinder 41 is fixed to be installed on centre gripping machined surface 11, second pressure plate 42 rotates to be connected in second hold-down cylinder 41 and keeps away from one side of centre gripping machined surface 11, hydraulic support 43 is fixed to be installed on centre gripping machined surface 11 and with from centering mechanism 20, the equal interval arrangement of second hold-down cylinder 41, the one end that hydraulic support 43 kept away from centre gripping machined surface 11 can offset tightly with the edge of bell housing 200. When the second pressing oil cylinder 41 is driven to act, the second pressing plate piece 42 rotates relative to the second pressing oil cylinder 41, one end, away from the second pressing oil cylinder 41, of the second pressing plate piece 42 is turned to a position opposite to the hydraulic support 43, and presses the flywheel housing 200 at the end part of the hydraulic support 43, so that the flywheel housing 200 at the end part of the hydraulic support 43 can be pressed and fixed based on the press fit of the second pressing plate piece 42 and the hydraulic support 43. Wherein the hydraulic support 43 is in a free state in an unpressurized state, the end of the hydraulic support 43 will always contact with the edge of the flywheel housing 200, and the height will be locked when the hydraulic support 43 is pressurized. It will be appreciated that the second platen member 42 is pivotally connected to the second hold-down cylinder 41 in the same manner as the first platen member 32 is pivotally connected to the first hold-down cylinder 31.

As shown in fig. 6, a first support rod 431 is formed on the hydraulic support 43, a second pressure rod 421 is installed at one end of the second pressure plate 42 away from the second pressure cylinder 41, and the second pressure rod 421 is in press fit with the first support rod 431 to fix and limit the flywheel housing 200.

In one embodiment, the fixture 100 further comprises: the angular positioning mechanism 50 is mounted on the clamping processing surface 11, the angular positioning mechanism 50 is arranged close to the second pressing mechanism 40, as shown in fig. 1 and 2, and the angular positioning mechanism 50 can position an angular positioning area 202 of the flywheel housing 200 to prevent the flywheel housing 200 from rotating. It can be understood that the cooperation among the self-centering mechanism 20, the first pressing mechanism 30, the second pressing mechanism 40 and the angular positioning mechanism 50 can prevent the flywheel housing 200 from moving in the up, down, left, right, front and back directions, so that the flywheel housing 200 can be fixed on the fixture 100, and the processing stability of the flywheel housing 200 in the processing process is ensured. Preferably, the self-centering mechanism 20 is a three-jaw centering chuck.

In one embodiment, referring to fig. 7, the angular positioning mechanism 50 includes: the angular jacking oil cylinder 51 and the angular positioning block 52 are parallel to each other and are arranged on the clamping processing surface 11 at intervals; an angular positioning support 53 is arranged at one end of the angular positioning block 52, which is far away from the clamping processing surface 11, an angular tightening cylinder 51 is formed with a tightening part 511, which is opposite to the angular positioning support 53, and the angular tightening cylinder 51 can drive the tightening part 511 to move towards the angular positioning support 53 so as to tighten the flywheel housing 200 (i.e. the angular positioning area 202 of the flywheel housing 200) between the angular positioning support 53 and the tightening part 511.

In one embodiment, in order to increase the rigidity of the flywheel housing 200 and to prevent the flywheel housing from vibrating and deforming during machining, the fixture 100 further includes: and the hydraulic auxiliary supports 70 are fixedly arranged on the clamping processing surface 11 and distributed around the self-centering mechanism 20, and a supporting part 71 is formed on one side, away from the clamping processing surface 11, of each hydraulic auxiliary support 70, and the supporting part 71 can be closely attached to the side edge, facing the self-centering mechanism 20, of the flywheel housing 200.

In one embodiment, the clamping method for clamping the flywheel housing 200 by using the clamp 100 provided in the above embodiments comprises the following steps:

firstly, abutting and positioning the end part of each fixed support 33 with the bottom surface of a concave cavity 201 of a flywheel shell 200;

secondly, abutting the self-centering mechanism 20 against the inner wall of the cavity 201 of the flywheel shell 200 to perform self-centering;

thirdly, operating the angular positioning mechanism 50 to tightly push and position the fixed angular area 202 of the flywheel housing 200;

fourthly, operating each first pressure plate part 32 and simultaneously pressing the side face, back to the self-centering mechanism 20, of the flywheel shell 200;

fifthly, operating the second pressure plate member 42 to press the edge of the flywheel housing 200;

and sixthly, operating the first pressure plate piece 32 close to the second pressure plate piece 42 to separate from the side surface of the flywheel shell 200, which is back to the self-centering mechanism 20.

Wherein, still include between step four and step five: the hydraulic auxiliary supports 70 and the hydraulic supports 43 are operated until the supporting parts 71 of the hydraulic auxiliary supports 70 abut against the side edges of the flywheel housing 200, and the first supporting rods 431 of the hydraulic supports 43 abut against the side edges of the flywheel housing 200.

It can be understood that the clamping process of the flywheel housing 200 by the clamp 100 provided in the above embodiments can be described as follows: the working personnel place the flywheel housing 200 to be processed on the end part of each fixed support 33 so as to be positioned in an abutting mode with the bottom surface of the concave cavity 201 based on the fixed supports 33, and the arrangement can avoid the influence of unstable depth of the concave cavity during processing; the self-centering mechanism 20 is abutted against the inner wall of the cavity 201 of the flywheel housing 200 and performs self-centering, so that the flywheel housing 200 can be automatically aligned and fixed; the fixed angle direction area 202 of the flywheel shell 200 is positioned between the jacking portion 511 and the angular positioning support 53, the angular jacking oil cylinder 51 is controlled to act, the jacking portion 511 moves towards the angular positioning support 53 until the fixed angle direction area 202 of the flywheel shell 200 is jacked, and therefore the fixed angle direction area 202 of the flywheel shell 200 can be jacked and positioned; operating each first pressure plate part 32 to simultaneously press different pressure points on the side surface of the flywheel housing 200; the hydraulic auxiliary supports 70 and the hydraulic supports 43 are controlled to act, so that the support parts 71 of the hydraulic auxiliary supports 70 simultaneously hold the side edges of the flywheel housing 200 tightly, the first support rods 431 of the hydraulic supports 43 are abutted against the side edges of the flywheel housing 200, the flywheel housing 200 can be supported, the rigidity of the flywheel housing 200 is increased, and the phenomenon that the flywheel housing 200 is vibrated and deformed is avoided; the second pressing plate 42 is operated to press the side edge of the flywheel housing 200 back to the self-centering mechanism 20, and then the first pressing plate 32 close to the second pressing mechanism 40 is operated to separate from the flywheel housing 200, so that the flywheel housing 200 can be fixedly clamped, the flywheel housing 200 is prevented from tilting due to uneven stress, and the action of interference with a cutter can be avoided.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. The utility model provides a anchor clamps that processing bell housing was used which characterized in that includes:

a clamp base (10), the clamp base (10) defining a clamping machined surface (11);

the self-centering mechanism (20) is arranged on the clamping processing surface (11) and can be abutted against the inner wall of the cavity (201) of the flywheel housing (200);

the fixture comprises at least three fixing supports (33), wherein each fixing support (33) is arranged on the clamping processing surface (11) and distributed on the periphery of the self-centering mechanism (20) in a triangular shape, and the end part of each fixing support (33) in the same direction can be abutted and positioned with the bottom surface of the concave cavity (201).

2. The clamp according to claim 1, wherein the clamp (100) further comprises: the clamping device comprises a first pressing oil cylinder (31) and a first pressing plate piece (32), wherein the first pressing oil cylinder (31) is fixedly arranged on the clamping processing surface (11), and the first pressing plate piece (32) is rotatably connected to one side, away from the clamping processing surface (11), of the first pressing oil cylinder (31); the drive first pressure cylinder (31), first pressure plate spare (32) about first pressure cylinder (31) rotate, first pressure plate spare (32) are kept away from the one end upset of first pressure cylinder (31) extremely with the tip of fixed stay (33) is just right mutually, with based on first pressure plate spare (32) with the crimping cooperation of fixed stay (33) compresses tightly and is located flywheel shell (200) of fixed stay (33) tip.

3. The clamp according to claim 1, wherein the clamp (100) further comprises: and the second pressing mechanism (40) is arranged on the clamping processing surface (11) and is adjacent to one fixed support (33).

4. The clamp according to claim 1, wherein the clamp (100) further comprises: the angular positioning mechanism (50) is arranged on the clamping processing surface (11).

5. A clamp as claimed in claim 2, characterized in that the end of the first presser member (32) remote from the first pressure cylinder (31) is provided with a first pressure bar (321), the first pressure bar (321) being in press-fit engagement with the fixed support (33).

6. The clamp according to claim 2, wherein the first pressing plate member (32) is arranged in a Z shape, one end of the first pressing plate member (32) close to the first pressing cylinder (31) is rotatably connected to a piston rod (311) of the first pressing cylinder (31) through a rotating shaft, a hinge portion (312) is formed on one side of the first pressing cylinder (31) facing the first pressing plate member (32), and the first pressing plate member (32) is rotatably connected to the hinge portion (312) through an adapter plate (60).

7. The clamp according to claim 3, wherein said second pressing mechanism (40) comprises: the clamping device comprises a second pressing oil cylinder (41), a second pressing plate piece (42) and a hydraulic support (43), wherein the second pressing oil cylinder (41) is fixedly arranged on the clamping processing surface (11), the second pressing plate piece (42) is rotatably connected to one side, away from the clamping processing surface (11), of the second pressing oil cylinder (41), and the hydraulic support (43) is fixedly arranged on the clamping processing surface (11); the drive second compresses tightly hydro-cylinder (41), second pressure plate spare (42) about second compresses tightly hydro-cylinder (41) and rotates, second pressure plate spare (42) are kept away from the one end upset of second pressure hydro-cylinder (41) extremely with hydraulic pressure supports (43) and just right mutually, in order based on second pressure plate spare (42) with the crimping cooperation that hydraulic pressure supported (43) compresses tightly and is located flywheel housing (200) of hydraulic pressure support (43) tip.

8. A clamp as claimed in claim 7, characterized in that said hydraulic support (43) is formed with a first support rod (431), and the end of said second presser plate member (42) remote from said second presser cylinder (41) is provided with a second pressure rod (421), said second pressure rod (421) being in press-fit engagement with said first support rod (431).

9. The jig of claim 4, wherein the angular positioning mechanism (50) comprises: the angular jacking oil cylinder (51) and the angular positioning block (52) are parallel to each other and arranged on the clamping processing surface (11) at intervals; angular positioning support (53) have been installed in angular positioning piece (52), angular top tight hydro-cylinder (51) be formed with angular positioning support (53) just right tight portion in top (511) mutually, angular top tight hydro-cylinder (51) can drive tight portion in top (511) orientation angular positioning support (53) remove to be located with the top tightly angular positioning support (53) with flywheel shell (200) between tight portion in top (511).

10. The clamp according to any one of claims 1 to 9, characterized in that the clamp (100) further comprises a plurality of hydraulic auxiliary supports (70), each hydraulic auxiliary support (70) is fixedly mounted on the clamping processing surface (11) and distributed around the self-centering mechanism (20), and a support portion (71) is formed on one side of each hydraulic auxiliary support (70) away from the clamping processing surface (11).

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