CN217750398U

CN217750398U - Tooth processing hydraulic pressure tight device that expands

Info

Publication number: CN217750398U
Application number: CN202122308682.0U
Authority: CN
Inventors: 杨小乐; 冯玻
Original assignee: Chongqing Xinxing Gear Wheel Co ltd
Current assignee: Chongqing Xinxing Gear Wheel Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-11-08
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a tooth processing hydraulic expansion device, which comprises a connecting seat (1), wherein a connecting disc (2) connected with the output end of a hydraulic cylinder (3) is arranged in the connecting seat (1), the connecting disc (2) is connected with a connecting sleeve (4) and a connecting disc sleeve (5), a taper sleeve (41) is arranged in the connecting sleeve (4), and a pull rod (42) is inserted in the taper sleeve (41); the connecting seat (1) is also provided with a base (6), an expansion sleeve (7) which is in threaded connection with the connecting disc sleeve (5) is arranged in the base (6), and the pull rod (42) extends into the expansion sleeve (7). The utility model discloses set up pull rod and connecting seat as the work piece installation position, set up the connection pad of being connected with the pneumatic cylinder to drive the cover that expands from this and remove, expand the cover and press from both sides tight work piece with the connecting seat butt, just with the protection work piece and improve the processing qualification rate, reduced the processing cost, simple structure, the simple operation.

Description

Tooth processing hydraulic pressure tight device that expands

Technical Field

The utility model relates to the field of machine-building, in particular to tooth processing hydraulic pressure tight device that expands.

Background

At present, in the process of gear parts, because the clamping position is short and the rigidity is insufficient, the outer wall of a gear is easy to damage by direct clamping, so that the clamping stress is uneven, the feed speed cannot be increased, the processing efficiency is low, the precision is low, the processing quality is influenced, the cost is higher due to reworking, and the qualified rate is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a tooth processing hydraulic pressure tight device that expands that can improve processingquality, can prevent again that the work piece from damaging.

The technical scheme of the utility model as follows:

a tooth machining hydraulic expansion device comprises a connecting seat, wherein a connecting disc connected with the output end of a hydraulic cylinder is arranged in the connecting seat, a connecting sleeve is arranged on the connecting disc, a connecting disc sleeve is arranged on the connecting sleeve, a cone is arranged in the connecting sleeve, and a pull rod is inserted in the cone sleeve; the connecting base is further connected with the base in a threaded mode, a through hole is formed in the base, an expansion sleeve in threaded connection with the connecting disc sleeve is arranged in the through hole, the pull rod extends into the expansion sleeve, a section of conical surface is arranged on the outer side wall of the non-threaded connection end of the expansion sleeve, a section of inclined surface is arranged on the hole wall of the through hole of the base, corresponding to the position of the conical surface, and the inclined surface abuts against the conical surface in a fit mode.

By adopting the structure, the taper sleeve is arranged in the connecting sleeve, the fixed pull rod is inserted in the taper sleeve, the connecting disc, the connecting sleeve and the connecting disc sleeve are connected together and placed in the connecting seat, one end of the connecting disc is connected with the output end of the hydraulic cylinder, the connecting disc sleeve is screwed with the expansion sleeve, the base is connected on the connecting seat, and the expansion sleeve extends into the base; when the clamping device is used, the connecting sleeve is clamped on a clamping clip of a machine tool, the corresponding position of the gear piece is placed in the expansion sleeve, the placed position is abutted and attached to the end face of the pull rod, the hydraulic cylinder is started to drive the connecting disc to move, the connecting sleeve and the connecting disc sleeve are pulled to move simultaneously, the connecting disc sleeve is in threaded connection with the expansion sleeve, the expansion sleeve is driven to move simultaneously, the expansion sleeve is abutted and attached to the conical surface of the corresponding inclined surface on the base, and the expansion sleeve shrinks, so that the outer wall of the corresponding position of the gear piece is clamped by the expansion sleeve, the rigidity and the clamping stability of the clamping gear piece are improved, meanwhile, the pull rod drives the expansion sleeve to move, the explosion-proof function is realized, the damage of parts caused by the clamping problem is avoided, the expansion sleeve is only required to be replaced even if the expansion sleeve is abraded, the replacement of an integral device is not required, and the cost is saved; after processing, the hydraulic cylinder is restarted to drive the connecting disc to move back, the base is driven to move back, the gear piece is loosened by the expansion sleeve, the gear piece is taken out, the steps are repeated again to continue processing, and the automatic expanding device is simple and practical in structure and convenient to operate.

In order to simplify the structure and facilitate installation, preferably, an annular extension section is arranged at one end of the connecting disc sleeve, at least two installation holes are formed in the annular extension section, connection through holes are formed in the positions, corresponding to the installation holes, on the connecting sleeve, locking bolts are inserted into the at least two installation holes, and each locking bolt penetrates through the corresponding connection through hole and is fixed with the connecting disc in a threaded connection mode.

In order to facilitate the limiting taper sleeve, preferably, the inner aperture size of the connecting sleeve is larger than that of the connecting disc sleeve, a step surface structure is arranged on the outer side wall of the taper sleeve, and the step surface position of the step surface structure is abutted against the end face of the corresponding end of the connecting disc sleeve so as to limit the taper sleeve.

In order to fix the base better, preferably, the base is provided with an annular boss extending into the connecting seat, a set screw is arranged at a position on the connecting seat corresponding to the annular boss, and the set screw abuts against a corresponding position of the outer side wall of the annular boss.

In order to facilitate the limiting of the expansion sleeve, preferably, a limiting bolt is arranged on the outer side wall of the base, a limiting groove is formed in the position, corresponding to the limiting bolt, of the expansion sleeve, and the limiting bolt penetrates through the through hole of the base inwards and extends into the limiting groove.

In order to facilitate the disassembly and assembly of the pull rod, preferably, a section of threaded section is arranged on the outer side wall of the middle part of the pull rod.

In order to facilitate the fixed installation of the workpiece, preferably, the end face of the non-insertion end of the pull rod is provided with a yielding hole.

Has the advantages that: the utility model discloses set up pull rod and connecting seat as the work piece installation position, set up the connection pad of being connected with the pneumatic cylinder to drive the cover that expands from this and remove, expand the cover and press from both sides tight work piece with the connecting seat butt, just with the protection work piece and improve the processing qualification rate, reduced the processing cost, simple structure, the simple operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a usage state diagram of the present invention.

Fig. 3 is a schematic structural diagram of the expansion sleeve.

Fig. 4 is a right side view of fig. 3.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, 2, 3 and 4, the utility model discloses a connecting seat 1, a connecting disc 2 connected with the output end of a hydraulic cylinder 3 is arranged in the connecting seat 1, a connecting sleeve 4 is arranged on the connecting disc 2, a connecting disc sleeve 5 is arranged on the connecting sleeve 4, one end of the connecting disc sleeve 5 is provided with an annular extending section 51, three mounting holes are arranged on the annular extending section 51, connecting through holes are arranged at positions corresponding to the mounting holes on the connecting sleeve 4, locking bolts 52 are inserted in the three mounting holes, and each locking bolt 52 penetrates through the connecting through hole at the corresponding position and is fixed with the connecting disc 2 in a screwed manner; the inner aperture size of the connecting sleeve 4 is larger than that of the connecting disc sleeve 5, a step surface structure is arranged on the outer side wall of the taper sleeve 41, and the step surface position of the step surface structure is abutted against the end face of the corresponding end of the connecting disc sleeve 5 so as to limit the taper sleeve 41.

A taper sleeve 41 is arranged in the connecting sleeve 4, a pull rod 42 is inserted in the taper sleeve 41, a section of threaded section 421 is arranged on the outer side wall of the middle part of the pull rod 42, and a abdicating hole 422 is arranged on the end face of the non-insertion end of the pull rod 42.

The connecting seat 1 is further connected with a base 6 in a threaded manner, the base 6 is provided with an annular boss 61 extending into the connecting seat 1, a set screw 12 is arranged at a position on the connecting seat 1 corresponding to the annular boss 61, and the set screw 12 is abutted to a corresponding position on the outer side wall of the annular boss 61.

The base 6 is provided with a through hole, an expansion sleeve 7 which is in threaded connection with the connecting disc sleeve 5 is arranged in the through hole, the pull rod 42 extends into the expansion sleeve 7, the outer side wall of the non-threaded end of the expansion sleeve 7 is provided with a section of conical surface, a position, corresponding to the conical surface, of the hole wall of the through hole of the base 6 is provided with a section of inclined surface, and the inclined surface is abutted to the conical surface in a fitting manner.

The outer side wall of the base 6 is provided with a limiting bolt 62, a limiting groove 71 is arranged on the expansion sleeve 7 corresponding to the limiting bolt 62, and the limiting bolt 62 penetrates through the through hole of the base 6 inwards and extends into the limiting groove 71.

The utility model discloses a use method as follows:

as shown in fig. 1 to 4, a taper sleeve 41 is arranged in the connecting sleeve 1, a fixed pull rod 42 is inserted in the taper sleeve 41, the connecting disc 2, the connecting sleeve 4 and the connecting disc sleeve 5 are connected together and placed in the connecting base 6, one end of the connecting disc 2 is connected with the output end of the hydraulic cylinder 3, an expansion sleeve 7 is screwed on the connecting disc sleeve 5, a base 5 is connected on the connecting base 4, and the expansion sleeve 7 extends into the base 5.

As shown in fig. 2, when in use, the connecting sleeve 1 is clamped on a clamping clip of a machine tool, the corresponding position of a gear piece is placed into the expansion sleeve 7, the placed position extends into the abdicating hole 422 and is abutted and jointed with the end face of the pull rod 42, the hydraulic cylinder 3 is started to drive the connecting disc 2 to move, the outer side wall of the taper sleeve 41 is provided with a step surface structure, and the step surface position of the step surface structure is abutted with the end face of the corresponding end of the connecting disc sleeve 5, so that the connecting disc 2 simultaneously pulls the connecting sleeve 4 and the connecting disc sleeve 5 to move, the connecting disc sleeve 5 is in threaded connection with the expansion sleeve 7, namely the expansion sleeve 7 is simultaneously driven to move, the corresponding inclined plane on the expansion sleeve 7 and the base 6 are abutted and jointed with the conical surface, and the expansion sleeve shrinks, therefore, the expansion sleeve 7 clamps the outer wall of the corresponding position of the gear piece, the rigidity and the clamping stability of the clamping gear piece are increased, meanwhile, the pull rod 42 drives the expansion sleeve 7 to move, the explosion-proof function is realized, the damage of parts is avoided, the abrasion of the expansion sleeve 7 is avoided, the whole device is not required, and the replacement of the whole device is not required; after processing, restart hydraulic cylinder 3 and drive connection pad 2 and move back, drive the cover 7 that expands simultaneously and move back, expand the cover 7 and loosen the gear spare, take out the gear spare can, repeat above-mentioned step again and continue processing, simple structure is practical, the simple operation.

It should be noted that the limiting bolt 62 is inserted into the through hole of the base 6 and extends into the limiting groove 71 to limit the expansion sleeve 7, so as to prevent the base 6 from being pressed and damaged by the expansion sleeve 7 due to more movement of the expansion sleeve 7, at least one more limiting groove 71 is reserved on the expansion sleeve 7, so that after one limiting groove 71 is worn, the expansion sleeve 7 can be used continuously after rotating for a certain angle, and the cost is further reduced; in addition, the threaded section 421 is arranged on the pull rod 42 for convenient detachment and replacement, during installation, a connecting rod (not shown) is screwed at the position of the threaded section 421, the pull rod is inserted into the taper sleeve 41 through the connecting rod, then the connecting rod is screwed down, during detachment and removal, the connecting rod is inserted into and screwed with the threaded section 421, the connecting disc 2 is disconnected with the output end of the hydraulic cylinder 3, the pull rod (the taper hole is usually a through hole and is mainly convenient for taking out the taper rod) in the taper sleeve 41 is knocked out by a tool from the direction of the connecting disc 2, and then the pull rod 42 is taken out through the connecting rod.

The utility model discloses do not describe the part unanimously with prior art, do not describe herein any more.

The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.

Claims

1. The utility model provides a tight device of tooth processing hydraulic pressure expands which characterized in that: the hydraulic cylinder connecting device comprises a connecting seat (1), a connecting disc (2) connected with the output end of a hydraulic cylinder (3) is arranged in the connecting seat (1), a connecting sleeve (4) is arranged on the connecting disc (2), a connecting disc sleeve (5) is arranged on the connecting sleeve (4), a taper sleeve (41) is arranged in the connecting sleeve (4), and a pull rod (42) is inserted in the taper sleeve (41); go back the spiro union on this connecting seat (1) have base (6) be equipped with the through-hole on base (6), be equipped with in this through-hole with expansion cover (7) of connecting disc cover (5) spiro union, pull rod (42) stretch into in the expansion cover (7), the lateral wall of the non-spiro union end of expansion cover (7) is equipped with one section conical surface, the position department that corresponds the conical surface on the pore wall of the through-hole of base (6) is equipped with one section inclined plane, this inclined plane and conical surface laminating butt.

2. A tooth-processing hydraulic expansion device according to claim 1, characterized in that: the one end of connecting disc cover (5) is equipped with annular extension (51), is equipped with two at least mounting holes on this annular extension (51) the position department that corresponds the mounting hole on adapter sleeve (4) all is equipped with connect the via hole, at least two it is equipped with locking bolt (52), every to insert in the mounting hole the connect the via hole that corresponds the position is worn to establish by locking bolt (52) to it is fixed with connecting disc (2) spiro union.

3. A tooth machining hydraulic expansion device according to claim 1, characterized in that: the inner aperture size of adapter sleeve (4) is greater than the inner aperture size of connection dish cover (5) be equipped with the step face structure on the lateral wall of taper sleeve (41), the step face position of step face structure and the terminal surface butt of the end that connection dish cover (5) correspond to spacing taper sleeve (41).

4. A tooth-processing hydraulic expansion device according to claim 1, characterized in that: be equipped with on base (6) and stretch into annular boss (61) of connecting seat (1) the position department that corresponds annular boss (61) on connecting seat (1) is equipped with holding screw (12), holding screw (12) and the corresponding position butt of annular boss (61) lateral wall.

5. A tooth-processing hydraulic expansion device according to claim 1, characterized in that: the outer side wall of the base (6) is provided with a limiting bolt (62), a limiting groove (71) is formed in the position, corresponding to the limiting bolt (62), of the expansion sleeve (7), and the limiting bolt (62) penetrates through the through hole in the base (6) inwards and extends into the limiting groove (71).

6. A tooth machining hydraulic expansion device according to claim 1, characterized in that: the outer side wall of the middle part of the pull rod (42) is provided with a section of threaded section (421).

7. A tooth-processing hydraulic expansion device according to claim 1, characterized in that: and the end surface of the non-insertion end of the pull rod (42) is provided with a yielding hole (422).