CN206296678U - A kind of fixture auxiliary ejection device - Google Patents

Abstract

The utility model provides a kind of fixture auxiliary ejection device, it includes cylinder and the drag hook push rod being fixed on the cylinder, the drag hook push rod includes positioning boss, the knock-pin that bottom is fixed on the positioning boss and the drag hook being fixed at the top of the knock-pin, the external diameter of the external diameter more than the knock-pin of the drag hook.During clamping device, importing fixture by shop bolt carries out Primary Location.The cylinder is opened, as the top surface 1.5MM of the knock-pin higher than fixture tool or so, can prevent the shop bolt at left and right two ends from being bitten by fixture.After fixture correcting, the cylinder is closed, the drag hook push rod under gravity, returns to home position, and the drag hook pins fixture, so that fixture is fitted with the surface of fixture tool.Structure of the present utility model improves the speed of product clamping, so as to improve yield.

Description

A kind of fixture auxiliary ejection device

Technical field

The utility model is related to field of machining, and in particular to a kind of fixture auxiliary ejection device.

Background technology

It is general to be positioned and clamped using multiple shop bolts in clamping device.But in position fixing process, due to folder Discontinuity equalization between tool and shop bolt, or the reason such as fixture levelness and the fixed perpendicularity of alignment pin, fixture may be by The pin of diverse location is bitten（Blocked because of the discontinuity equalization at certain moment, it is impossible to reach predetermined position location）；Take out folder During tool, because in production operation, the pin hole of fixture is smaller with pin interval, the shadow of the factor such as cutting fluid and cutting scrap Ring, cause fixture clamping tension and be difficult to take out.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of device, make the positioning of fixture and clamp it is more smooth and Accurately, and after machining fixture is smoothly taken out.

To achieve the above object, the utility model uses following technical scheme：

A kind of fixture auxiliary ejection device, it includes cylinder and the drag hook push rod being fixed on the cylinder, the drag hook Push rod includes positioning boss, the knock-pin that bottom is fixed on the positioning boss and the drawing being fixed at the top of the knock-pin Hook, the external diameter of the external diameter more than the knock-pin of the drag hook.During clamping device, it is tentatively fixed to be carried out by shop bolt importing fixture Position.The cylinder is opened, when top surface one segment distance of the knock-pin higher than fixture tool, i.e., described positioning boss jack-up folder When having a segment distance, can prevent the shop bolt at left and right two ends from being bitten by fixture.After fixture correcting, the cylinder is closed, The drag hook push rod under gravity, returns to home position, and the drag hook pins fixture, so that fixture and fixture tool Fit on surface.

Preferably, the knock-pin and drag hook are formed in one or assembled formation.

Preferably, the positioning boss, knock-pin and drag hook are formed in one or assembled formation.

Preferably, the drag hook push rod is bilateral symmetry.

Preferably, the drag hook push rod is cyclically symmetric structure.

Preferably, the top of the drag hook is tack.

Fixture auxiliary ejection device provided by the utility model can avoid fixture clamping tension from being difficult to the problem taken out, Especially after the completion of Product processing, because the interval between fixture pin hole and pin is too small, along with cutting fluid is useless with cutting The influence of the factors such as bits causes fixture clamping tension to be difficult to the problem taken out.When being opened with cylinder, drag hook push rod can be folder Tool ejection fixture surface 1.5MM, so as to easily take out product.

Brief description of the drawings

In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the dimensional structure diagram of the utility model fixture auxiliary ejection device preferred embodiment.

Fig. 2 is cross section structure diagram of the utility model preferred embodiment in Product processing.

Description of reference numerals：

1 cylinder, drag hook push rod 2, positioning boss 21, knock-pin 22, drag hook 23, fixture 3, tool 4, alignment pin Nail 5.

Specific embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Type embodiment and accompanying drawing, are clearly and completely described to the technical scheme in the utility model embodiment.Need explanation It is that described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.It is new based on this practicality Embodiment in type, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made Example, belongs to the scope of the utility model protection.

Embodiment

The embodiment shown in Fig. 1 is referred to, fixture auxiliary ejection device of the invention includes cylinder 1 and is fixed on the gas Drag hook push rod 2 on cylinder, the drag hook push rod includes the knock-pin that positioning boss 21, bottom is fixed on the positioning boss 22 and the drag hook 23 at the top of the knock-pin 22 is fixed on, the external diameter of the external diameter more than the knock-pin 22 of the drag hook 23, with Just fixture 3 is hooked tightly.

As shown in Fig. 2 during clamping device 3, importing fixture 3 by shop bolt 5 carries out Primary Location.The cylinder 1 is opened, As the top surface 1.5MM of the knock-pin 22 higher than fixture tool 4 or so, i.e., the described about 1.5MM of jacking clamp 3 of positioning boss 21 During left and right, can prevent the shop bolt 5 at left and right two ends from being bitten by fixture 3.After 3 correcting of fixture, the cylinder 1, institute are closed State drag hook push rod 2 under gravity, return to home position, the drag hook 23 pins fixture 3, so that fixture 3 is controlled with fixture The surface of tool 4 is fitted, now upper surface sinking about 0.95MM of the upper surface of positioning boss 21 than fixture tool 4.

In the present embodiment, knock-pin 22 and drag hook 23 are formed in one, simple structure.In the application, produced according to processing The difference of product, knock-pin 22 and drag hook 23 can also assembled formation, to improve adaptability.Further, the positioning boss 21, Knock-pin 22 and drag hook 23 can be formed in one or assembled formation.Its assembling mode can be using conventional screw thread, bolt Etc. structure, will not be repeated here.

As shown in figure 1, drag hook push rod 2 is bilateral symmetry, with the stress of balancing fixture 3 or so.Certainly, according to specific folder The structure of tool is different, and the drag hook push rod 2 also may be used for cyclically symmetric structure.To simplify difficulty of processing, the drag hook in the present embodiment 23 top is tack, and sidepiece also been removed sharp seamed edge.

Fixture auxiliary ejection device provided by the utility model can avoid what the clamping tension of fixture 3 was difficult to take out from asking Topic, especially after the completion of Product processing, because the interval between fixture pin hole and shop bolt 5 is too small, along with cutting fluid The clamping tension of fixture 3 is caused to be difficult to the problem taken out with the influence for cutting the factors such as scrap.When being opened with cylinder 1, drag hook top The surface 1.5MM of 3 ejection fixture of fixture 4 so as to easily take out product, can be improve the speed of product clamping by bar 2, be improved Product processing efficiency and yield.

Embodiment described above only expresses a kind of implementation method of the present utility model, and its description is more specific and detailed, But therefore can not be interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that common for this area For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (6)

1. a kind of fixture auxiliary ejection device, it is characterised in that：It includes cylinder and the drag hook push rod being fixed on the cylinder, Knock-pin and be fixed on the knock-pin that the drag hook push rod is fixed on the positioning boss including positioning boss, bottom The drag hook at top, the external diameter of the external diameter more than the knock-pin of the drag hook.

2. fixture auxiliary ejection device according to claim 1, it is characterised in that：The knock-pin and drag hook are integrated into Type or assembled formation.

3. fixture auxiliary ejection device according to claim 2, it is characterised in that：The positioning boss, knock-pin and drawing Hook is formed in one or assembled formation.

4. fixture auxiliary ejection device according to claim 1, it is characterised in that：The drag hook push rod is symmetrical knot Structure.

5. fixture auxiliary ejection device according to claim 1, it is characterised in that：The drag hook push rod is rotationally symmetrical knot Structure.

6. fixture auxiliary ejection device according to claim 1, it is characterised in that：The top of the drag hook is tack.