CN215200783U

CN215200783U - Fixing tool for gear box

Info

Publication number: CN215200783U
Application number: CN202121345974.5U
Authority: CN
Inventors: 赵铭; 刘长民; 刘长国; 李娜; 谢世荣; 田丹阳
Original assignee: Jiangsu Guohe Precision Technology Co ltd
Current assignee: Jiangsu Guohe Precision Technology Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-12-17
Anticipated expiration: 2031-06-17

Abstract

The utility model relates to a fixed frock of gear box belongs to machining's auxiliary fixtures. Including handle, piston, jack catch, brace cover, the piston chamber that the brace cover has a front and back extension, the piston sets up the piston intracavity, be provided with the through-hole on the outer wall in piston chamber, the jack catch sets up in the through-hole, the handle acts on the piston is used for driving this piston to advance and retreat from beginning to end in the piston intracavity and from this realization piston follows the jack catch is ejecting to the outside in the through-hole. The clamping jaw is elastically arranged in the through hole, and the clamping jaw always has the tendency of retracting inwards into the through hole. The clamping of the gear box processing workpiece is convenient, the operation is quick, and the production efficiency is obviously improved. The positioning is accurate, and the coordinate does not need to be measured again after the workpiece is clamped every time.

Description

Fixing tool for gear box

Technical Field

The utility model relates to a fixed frock that gear box used in the course of working.

Background

The gear box processing belongs to precision machining, the requirement on the processing precision is high, a workpiece needs to be accurately positioned in the gear box processing process, and otherwise the processing precision of the workpiece cannot meet the design technical requirement. In addition, when each gearbox workpiece is machined, the coordinates need to be measured again, and the machining can be continued after the measured coordinates are corrected, so that the machining precision of the workpiece can be ensured. The mode results in that the machining efficiency and the qualification rate of the existing gearbox workpiece are low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned prior art and provide a fixed frock for in the gear box course of working, carry out the work piece on the machine tool workstation temporarily fixed, with this ensure the machining precision to the work piece.

The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides a fixed frock of gear box, includes handle, piston, jack catch, brace sleeve, the brace sleeve has a piston chamber that extends from beginning to end, the piston sets up the piston intracavity, be provided with the through-hole on the outer wall in piston chamber, the jack catch sets up in the through-hole, the handle acts on the piston is used for driving this piston to advance and retreat in the piston intracavity from this realization piston follow the jack catch is ejecting to the outside in the through-hole.

Preferably, the jaws are resiliently disposed within the through-holes, the jaws always having a tendency to retract inwardly into the through-holes.

As one of the implementation mode of this application, the brace overcoat has the spring coil, the spring coil hoops the jack catch, the jack catch can overcome the elasticity of spring coil and outwards ejecting and have the trend of inwards retracting in the through-hole all the time under the restriction of spring coil.

Preferably, the supporting sleeve outer wall is provided with a ring groove, and the spring ring is sleeved in the ring groove to prevent the spring ring from displacing.

As one of the implementation modes of the application, the piston cavity is of a blind hole structure, an end cover is fixedly arranged at a port of the piston cavity, and the handle penetrates through the end cover to act on the piston, so that the piston is prevented from being separated from the piston cavity.

Preferably, the handle is screwed with the piston through threads, and the screwing driving is realized, so that the operation of an operator is facilitated.

Preferably, the jaw and the piston each have a wedge surface, and the piston presses the wedge surface of the jaw through the wedge surface. The claw can be ejected and retracted more smoothly by the wedge surface extrusion mode.

Preferably, the clamping jaws are arranged on the outer wall of the piston cavity in a circumferential mode, and the gearbox workpiece is stably fixed through the clamping jaws.

Compared with the prior art, the utility model has the advantages of:

(1) the clamping of the gear box processing workpiece is convenient, the operation is quick, and the production efficiency is obviously improved.

(2) The positioning is accurate, and the coordinate does not need to be measured again after the workpiece is clamped every time.

Drawings

Fig. 1 is a perspective view of a fixing tool in an embodiment of the present invention;

fig. 2 is a front view of the fixing tool in the embodiment of the present invention;

FIG. 3 is a cross-sectional view AA in FIG. 2;

FIG. 4 is a front view of the brace in an embodiment of the present invention;

FIG. 5 is a cross-sectional view AA in FIG. 4;

fig. 6 is a perspective view of a jaw in an embodiment of the present invention;

fig. 7 is a front view of a jaw in an embodiment of the invention;

fig. 8 is a front view of a piston in an embodiment of the invention;

FIG. 9 is a cross-sectional view CC of FIG. 8;

FIG. 10 is a top view of the structure shown in FIG. 8;

in the figure, a handle 1, a piston 2, a claw 3, a brace 4, an end cover 5, a ring groove 6, a piston cavity 7 and a through hole 8.

Detailed Description

The present invention will be described in further detail with reference to the following drawings, which are illustrative and are not to be construed as limiting the present invention. The description of the present embodiment is corresponding to the accompanying drawings, and the description related to the orientation is also based on the description of the accompanying drawings, and should not be construed as limiting the scope of the present invention.

As shown in fig. 1, the fixing tool for the gearbox of the embodiment includes a handle 1, a piston 2, two claws 3, a supporting sleeve 4 and an end cover 5, wherein the supporting sleeve 4 is provided with a piston cavity 7 extending front and back, the piston 2 is arranged in the piston cavity 7, the piston cavity 7 is of a blind hole structure, the end cover 5 is fixedly arranged at a port of the piston cavity 7, the handle 1 penetrates through the end cover 5 to act on the piston 2, the handle 1 is screwed with the piston 2 through threads and is driven by screwing, and the piston 2 is driven to move back and forth in the piston cavity 7. Two through holes 8 are arranged on the outer wall of the piston cavity 7, the two claws 3 are respectively arranged in the two through holes 8,

the handle 1 acts on the piston 2 for driving the piston 2 back and forth in the piston chamber 7 thereby effecting ejection of the piston 2 from the jaws 3 outwardly from the through hole 8. The claw 3 and the piston 2 are provided with wedge surfaces, the wedge surfaces extrude with each other, and the piston 2 enables the claw 3 to be ejected and retracted more smoothly in the through hole 8 in a wedge surface extruding mode.

The jack catch 3 is set up in the through-hole 8 by elasticity, specifically, the spring coil (not shown in the figure) is overcoat to the brace 4, and the spring coil hoops two jack catches 3 from the outside, and the jack catch 3 is overcome the elasticity of spring coil and is outwards ejecting when being pushed outward, and two jack catches 3 have the trend of inwards retracting in the through-hole 8 all the time under the restriction of spring coil simultaneously. The outer wall of the support sleeve 4 is provided with a ring groove 6, and the spring ring is sleeved in the ring groove 6, so that the spring ring is prevented from displacing.

The working principle of the tool is as follows: install the processing work piece of gear box on the lathe workstation with this frock: the handle penetrates through the end cover to be fixed with the piston, the handle and the piston are screwed and fixed through threads, after a machined workpiece is placed on the supporting sleeve, the handle is operated to screw and drive the piston to move back and forth, and the clamping jaws are ejected outwards to fix the workpiece.

In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a fixed frock of gear box which characterized in that: including handle, piston, jack catch, brace cover, the piston chamber that the brace cover has a front and back extension, the piston sets up the piston intracavity, be provided with the through-hole on the outer wall in piston chamber, the jack catch sets up in the through-hole, the handle acts on the piston is used for driving this piston to advance and retreat from beginning to end in the piston intracavity and from this realization piston follows the jack catch is ejecting to the outside in the through-hole.

2. The gearbox fixing tool according to claim 1, wherein: the clamping jaw is elastically arranged in the through hole, and the clamping jaw always has the tendency of retracting inwards into the through hole.

3. The gearbox fixing tool according to claim 2, wherein: the elastic ring is sleeved outside the brace sleeve, the spring ring hoops the clamping jaw, the clamping jaw can overcome the elastic force of the spring ring and is ejected outwards, and the clamping jaw always has the trend of retracting inwards into the through hole under the limitation of the spring ring.

4. The gearbox fixing tool according to claim 3, wherein: the supporting sleeve outer wall is provided with an annular groove, and the spring ring is sleeved in the annular groove.

5. The gearbox fixing tool according to claim 1, wherein: the piston cavity is of a blind hole structure, an end cover is fixedly arranged at the end port of the piston cavity, and the handle penetrates through the end cover to act on the piston.

6. A gearbox fixing tool according to claim 5, characterized in that: the handle is screwed with the piston through threads and is driven by screwing.

7. The gearbox fixing tool according to claim 1, wherein: the claw and the piston are both provided with wedge surfaces, and the piston extrudes the wedge surfaces of the claw through the wedge surfaces.

8. The gearbox fixing tool according to claim 1, wherein: the clamping jaws are multiple and are annularly arranged on the outer wall of the piston cavity.