阅读说明：本技术 一种机体卧式夹具 (Horizontal fixture for machine body ) 是由 杨文娟 邱瑞军 樊光明 孙伟 刘晶 于 2021-08-18 设计创作，主要内容包括：本发明公开了一种机体卧式夹具,包括底座,所述底座上设有向下压紧机体的机体下压定位机构,所述底座上还设有支撑机构,所述底座上还设有伸入所述缸孔内的柱体,所述柱体上设有缸孔内涨紧定位机构；柱体插入缸孔内,通过涨紧定位机构对缸孔进行涨紧定位,通过下压定位机构对机体进行压紧定位,支撑机构对机体上的定位点进行支撑,从而有效保证了机体的定位装夹精度。(The invention discloses a horizontal clamp for a machine body, which comprises a base, wherein a machine body downward pressing and positioning mechanism for pressing the machine body downward is arranged on the base, a supporting mechanism is also arranged on the base, a cylinder body extending into a cylinder hole is also arranged on the base, and a cylinder hole tensioning and positioning mechanism is arranged on the cylinder body; the cylinder body is inserted into the cylinder hole, the cylinder hole is tensioned and positioned through the tensioning positioning mechanism, the machine body is compressed and positioned through the pressing positioning mechanism, and the positioning points on the machine body are supported by the supporting mechanism, so that the positioning and clamping precision of the machine body is effectively guaranteed.)

1. The horizontal fixture for the machine body is characterized by comprising a base, wherein a machine body downward pressing positioning mechanism for downward pressing the machine body is arranged on the base, a supporting mechanism is further arranged on the base, a cylinder body extending into the cylinder hole is further arranged on the base, and a cylinder hole tensioning positioning mechanism is arranged on the cylinder body.

2. The horizontal machine body clamp of claim 1, wherein the tensioning and positioning mechanism in the cylinder hole comprises a plurality of symmetrically distributed tensioning blocks rotatably mounted on the column body, and the column body is further provided with a tensioning driving mechanism for driving the outer ends of the tensioning blocks to deflect outwards and press against the inner wall of the cylinder hole.

3. The horizontal jig for machine bodies as claimed in claim 2, wherein the tension driving mechanism comprises a reverse conical head, a vertical movement guiding mechanism is arranged between the reverse conical head and the column body, a screw hole is arranged on the upper end surface of the reverse conical head, a reverse conical head driving bolt is screwed into the screw hole, the reverse conical head driving bolt is rotatably mounted on a cover plate, and the cover plate is located above the reverse conical head and is fixedly connected with the column body.

4. The horizontal jig for the machine body of claim 3, wherein the cylinder is provided with a central hole, the side wall of the cylinder is provided with a side mounting hole penetrating to the central hole, the expansion block is rotatably mounted in the side mounting hole, the central hole of the cylinder is further internally provided with a guide sleeve, and the inverted conical head is positioned in the guide sleeve.

5. The horizontal jig for the machine body according to claim 3, wherein the up-and-down movement guide mechanism comprises a guide block mounted on the inverted cone head, the guide block is parallel to the axial direction of the inverted cone head, and a guide groove matched with the guide block is formed in the guide sleeve.

6. The horizontal jig for a machine body of claim 1, wherein the support mechanism comprises a fixed support column and an adjustable support column.

7. The horizontal jig for engine blocks of claim 1, wherein the support mechanism further comprises an elastic support mechanism.

8. The horizontal jig for the machine body of claim 7, wherein the elastic supporting mechanism comprises a guiding base fixedly installed on the base, the guiding base is provided with a guiding hole extending up and down, a guiding sleeve is movably installed in the guiding hole, a supporting spring is sleeved in the guiding sleeve, a supporting head is fixedly installed at the upper end of the guiding sleeve, the upper end of the supporting spring abuts against the lower surface of the supporting head, and the lower end of the supporting spring abuts against the guiding base.

9. The horizontal jig for the engine block of any one of claims 1 to 8, wherein a side surface of the expansion block adjacent to the inverted conical head comprises an arc-shaped surface.

Technical Field

The invention relates to a horizontal clamp for a machine body.

Background

In the prior art, a pressing fixing mechanism and a supporting fixing mechanism are mostly adopted for clamping and positioning a machine body, for example, the technical scheme disclosed in [ china invention ] cn201721802432.x discloses a diesel engine body clamp, wherein a hydraulic locking mechanism jacks up a round positioning pin and a diamond positioning pin, the diesel engine body is rotated at the moment so that the round positioning pin and the diamond positioning pin fall into corresponding positioning holes of the diesel engine body, and then a pressing block is pressed down to clamp a workpiece by rotating a threaded rod. The drill jig plate is detachably positioned by a bolt and is fixed with the base of the clamp body through a long fastening bolt and a nut, a workpiece is arranged on a supporting plate connected with the clamp body through a round positioning pin and a diamond positioning pin and is positioned by two pins on one surface, and the transverse plate is fixed with the drill jig plate through the fastening bolt, so that all parts are combined into a whole. Although the scheme can realize the positioning of the machine body, the cylinder holes in the machine body cannot be effectively positioned, and the clamping and positioning of the machine body under the requirement of high processing precision cannot be realized.

Disclosure of Invention

Aiming at overcoming the defects, the invention provides the horizontal machine body clamp which can effectively realize the positioning of the cylinder holes and reliably realize the clamping and positioning of the machine body.

The technical scheme of the invention is as follows: the horizontal fixture for the machine body comprises a base, wherein a machine body downward pressing positioning mechanism for downward pressing the machine body is arranged on the base, a supporting mechanism is further arranged on the base, a cylinder body extending into a cylinder hole is further arranged on the base, and a cylinder hole tensioning positioning mechanism is arranged on the cylinder body.

As a preferable technical scheme, the cylinder hole internal expansion positioning mechanism comprises a plurality of expansion blocks which are rotationally arranged on the cylinder body and symmetrically distributed, and the cylinder body is also provided with an expansion driving mechanism which drives the outer ends of the expansion blocks to deflect outwards and press the expansion blocks on the inner wall of the cylinder hole.

As preferred technical scheme, tight actuating mechanism rises includes the back taper head, the back taper head with be equipped with up-and-down motion guiding mechanism between the cylinder, the up end of back taper head is equipped with the screw, the screw is internal to close back taper head drive bolt soon, back taper head drive bolt rotates and installs on the apron, the apron is located back taper head top and with cylinder fixed connection.

According to the preferable technical scheme, the cylinder is provided with a center hole, the side wall of the cylinder is provided with a side mounting hole penetrating through the center hole, the expansion block is rotatably mounted in the side mounting hole, the center hole of the cylinder is further internally provided with a guide sleeve, and the inverted conical head is located in the guide sleeve.

As a preferable technical scheme, the up-and-down movement guide mechanism comprises a guide block mounted on the inverted cone-shaped head, the guide block is parallel to the axial direction of the inverted cone-shaped head, and a guide groove matched with the guide block is arranged in the guide sleeve.

As a preferred technical solution, the supporting mechanism includes a fixed supporting column and an adjustable supporting column.

Preferably, the support mechanism further comprises an elastic support mechanism.

According to a preferable technical scheme, the elastic supporting mechanism comprises a guide base fixedly mounted on the base, a guide hole extending up and down is formed in the guide base, a guide sleeve is movably mounted in the guide hole, a supporting spring is sleeved in the guide sleeve, a supporting head is fixedly mounted at the upper end of the guide sleeve, the upper end of the supporting spring abuts against the lower surface of the supporting head, and the lower end of the supporting spring abuts against the guide base.

As a preferable technical scheme, one side surface of the expansion block adjacent to the inverted conical head comprises an arc-shaped surface.

By adopting the technical scheme, the horizontal machine body clamp comprises a base, wherein a machine body downward pressing positioning mechanism for pressing a machine body downward is arranged on the base, a supporting mechanism is also arranged on the base, a cylinder body extending into the cylinder hole is also arranged on the base, and a cylinder hole tensioning positioning mechanism is arranged on the cylinder body; the cylinder body is inserted into the cylinder hole, the cylinder hole is tensioned and positioned through the tensioning positioning mechanism, the machine body is compressed and positioned through the pressing positioning mechanism, and the positioning points on the machine body are supported by the supporting mechanism, so that the positioning and clamping precision of the machine body is effectively guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a cross-sectional view of an inverted conical head in an embodiment of the present invention;

FIG. 5 is a schematic view of a tension state of the tension positioning mechanism according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an untensioned state of the tension positioning mechanism in the embodiment of the invention.

Detailed Description

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a horizontal jig for a machine body includes a base 1, a downward pressing positioning mechanism 2 for pressing the machine body downward is disposed on the base 1, a supporting mechanism is further disposed on the base 1, a cylinder 5 extending into a cylinder hole 3 is further disposed on the base 1, and a tensioning positioning mechanism in the cylinder hole 3 is disposed on the cylinder 4; the cylinder 5 is inserted into the cylinder hole 3, the cylinder hole 3 is subjected to tensioning positioning through the tensioning positioning mechanism, the machine body is pressed and positioned through the pressing positioning mechanism, and the positioning points on the machine body are supported by the supporting mechanism, so that the positioning and clamping precision of the machine body is effectively guaranteed.

As shown in fig. 1, 5 and 6, the internal expansion positioning mechanism of the cylinder hole 3 includes a plurality of expansion blocks 6 which are rotationally mounted on the cylinder body and symmetrically distributed, and the cylinder body 5 is further provided with an expansion driving mechanism which drives the outer ends of the expansion blocks 6 to deflect outwards and press against the inner wall of the cylinder hole 3. The expansion blocks are symmetrically distributed on the cylinder body, preferably, the expansion blocks are centrosymmetrically distributed by taking the axis of the cylinder body as a symmetric center, and the expansion driving mechanism drives the expansion blocks to deflect outwards and tightly press the inner wall of the cylinder hole, so that the positioning of the cylinder hole is realized.

As shown in fig. 1 and 4, tight actuating mechanism that rises includes back taper head 7, back taper head 7 with be equipped with up-and-down motion guiding mechanism between the cylinder 5, the up end of back taper head 7 is equipped with screw 8, it has back taper head drive bolt 9 to close soon in the screw 8, back taper head drive bolt 9 rotates and installs on apron 10, apron 10 is located back taper head 7 top and with cylinder 5 fixed connection. A limiting ring is fixedly mounted on the inverted conical head driving bolt, and the limiting ring 24 is located below the cover plate. The back taper head driving bolt 9 rotates and installs on apron 10, for realizing in this embodiment the back taper head driving bolt rotates and installs the apron mountain is given, be equipped with the through-hole on the apron, the back taper head driving bolt penetrates the through-hole to with through-hole clearance fit, still be equipped with the spacing ring on the back taper head driving bolt, the spacing ring in the apron cooperation has been showing the upward movement of back taper head driving bolt, like this when rotating during the back taper head driving bolt, because the guide effect of up-and-down motion guiding mechanism, the back taper head can reciprocate, when the back taper head moves down, promotes the outer end of bloating and deflects to the outside to make the outside deflection in bloating jar hole compress tightly on 3 inner walls in jar hole, realize the tight location that rises of jar.

As shown in fig. 1, 5 and 6, the cylinder is provided with a central hole 11, the side wall of the cylinder 5 is provided with a side mounting hole which is communicated with the central hole 11, the expansion block 12 is rotatably mounted in the side mounting hole, the central hole 11 of the cylinder is also provided with a guide sleeve 12, and the inverted cone-shaped head 7 is positioned in the guide sleeve 12. The outer end of the expansion block can swing out of the side mounting hole and act on the inner wall of the cylinder hole.

As shown in fig. 4 and 5, the up-and-down movement guiding mechanism includes a guiding block 13 mounted on the inverted cone head, the guiding block is parallel to the axis direction of the inverted cone head, and a guiding groove matched with the guiding block is arranged in the guiding sleeve 12.

As shown in fig. 1 and 2, the support mechanism includes a fixed support column 14 and an adjustable support column 15.

As shown in fig. 2, the support mechanism further includes an elastic support mechanism.

The elastic support mechanism comprises a guide base 16 fixedly mounted on the base, a guide hole 17 extending up and down is formed in the guide base, a guide sleeve 18 is movably mounted in the guide hole 17, a support spring 19 is sleeved in the guide sleeve 18, a support head 20 is fixedly mounted at the upper end of the guide sleeve 18, the upper end of the support spring 19 abuts against the lower surface of the support head 20, and the lower end of the support spring abuts against the guide base 16. The lower surface of the supporting head is fixedly provided with a guide post 23, and the guide base is provided with a supporting head guide hole matched with the guide main. The guide post and the guide hole of the support head are matched to avoid the rotation of the support head, and the positioning precision is ensured.

As shown in fig. 6, a side surface of the expansion block adjacent to the reverse taper head includes an arc-shaped surface 21. The arc-shaped face is matched with the inverted cone head, so that the movement of the expansion block is smoother.

As shown in fig. 1 and 2, the press-down positioning mechanism of the machine body includes a press plate 22. The pressing plate is connected with the base through bolts, the pressing plate can be tightly pressed on the machine body through the bolts, in the embodiment, the base is fixedly provided with a side plate 25 perpendicular to the base, and the pressing plate is arranged on the side plate. The side plates are also provided with auxiliary supports 26 perpendicular to the side plates and supported on the body side surface.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.