CN215659022U - Clamp for long shaft broaching - Google Patents

Abstract

The utility model discloses a clamp for a long shaft broaching hole, which comprises a supporting underframe, wherein two sliding grooves are formed in the upper side wall of the supporting underframe, the supporting underframe is connected with a plurality of supporting frames in a sliding manner through the sliding grooves, each supporting frame consists of a sliding frame and a supporting rod, and the middle part of each supporting rod is in threaded connection with a rotating block; the lower extreme fixedly connected with clamp splice of turning block, the clamp splice comprises bent shape piece and shock pad, the last fixed surface of bent shape piece is connected with the gag lever post, the last fixed surface of gag lever post is connected with spacing protruding. According to the utility model, the clamping block fixes the long shaft through the curved block and the shock pad, the curved block can be effectively prevented from rotating through the limiting rod, the looseness of the clamping block can be effectively reduced through the reset spring, the vibration generated by the long shaft due to the action of the broach can be reduced in the broaching process, and the coaxiality of the machined inner hole and the roughness of the hole surface are ensured.

Description

Clamp for long shaft broaching

Technical Field

The utility model relates to the technical field of clamps, in particular to a clamp for a long shaft broaching hole.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig.

Because the rigidity of the long shaft is poor, when the long shaft is subjected to broaching, the coaxiality of an inner hole of a machined product is determined by the performance of the clamp, and if the clamp cannot well reduce the vibration generated by the broaching of the long shaft, the coaxiality of the inner hole is increased, the surface roughness of the inner wall of the hole is increased, and the quality of the product is greatly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a clamp for a long shaft drawing hole.

In order to achieve the purpose, the utility model adopts the following technical scheme: the support device comprises a support chassis, wherein two sliding grooves are formed in the upper side wall of the support chassis, the support chassis is connected with a plurality of support frames in a sliding mode through the sliding grooves, each support frame consists of a sliding frame and a support rod, and a rotating block is connected to the middle of each support rod in a threaded mode;

the lower extreme fixedly connected with clamp splice of turning block, the clamp splice comprises bent shape piece and shock pad, the last fixed surface of bent shape piece is connected with the gag lever post, the last fixed surface of gag lever post is connected with spacing protruding, be provided with reset spring between gag lever post and the bracing piece.

As a further description of the above technical solution:

the upper side wall of the supporting underframe is provided with a supporting groove, and the supporting groove is in an inverted triangle shape.

As a further description of the above technical solution:

the sliding frame is in sliding connection with the sliding groove.

As a further description of the above technical solution:

the limiting rods are provided with two limiting rods, and the two limiting rods are in sliding connection with the supporting rod.

As a further description of the above technical solution:

the lower side wall of the curved block is arc-shaped.

As a further description of the above technical solution:

the lower surface of shock pad evenly is provided with anti-skidding groove, the shock pad adopts the yielding rubber material to make.

As a further description of the above technical solution:

the upper surface of the rotating block is fixedly connected with a rotating disc, and the outer side wall of the rotating disc is provided with a rotating protrusion.

As a further description of the above technical solution:

the middle part of the upper surface of the curved block is fixedly connected with a rotating joint, and the rotating joint is rotatably connected with the lower end of the rotating block.

The utility model has the following beneficial effects:

1. compared with the prior art, this an anchor clamps for major axis trompil has set up the clamp splice, and the clamp splice is fixed the major axis through curved piece and shock pad, can prevent effectively that the curved piece from rotating through the gag lever post, can effectively reduce not hard up of clamp splice through reset spring, and can cut down the vibrations that the broach effect made the major axis produce in the trompil course of working, has guaranteed the axiality of processing back hole and the roughness of hole face.

2. Compared with the prior art, the fixture for the long shaft broaching hole is provided with the supporting underframe and the clamping blocks, so that long shafts with different lengths can be fixed, the application range of the fixture is greatly improved, and the fixing cost of the long shafts is favorably reduced.

Drawings

FIG. 1 is a schematic view of a jig for long-axis broaching according to the present invention;

FIG. 2 is an isometric view of a fixture for drawing a hole with a long axis according to the present invention;

FIG. 3 is a schematic top view of a fixture for long-axis broaching according to the present invention;

fig. 4 is a schematic front view of a clamp for long-axis broaching according to the present invention.

Illustration of the drawings:

1. a support chassis; 101. a chute; 102. a support groove; 2. a support frame; 201. a carriage; 202. a support bar; 3. a clamping block; 301. a limiting rod; 302. a limiting protrusion; 303. a return spring; 304. a rotating joint; 305. a curved block; 306. a shock pad; 4. rotating the block; 401. a turntable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: including supporting chassis 1, the last lateral wall that supports chassis 1 is provided with two spout 101, the last lateral wall that supports chassis 1 is provided with supports groove 102, be used for supporting the major axis, it sets up to the inverted triangle-shaped to support groove 102, can adapt to the major axis of different diameters, it has a plurality of support frames 2 to support chassis 1 through spout 101 sliding connection, be sliding connection between carriage 201 and the spout 101, every support frame 2 comprises carriage 201 and bracing piece 202, the middle part threaded connection of bracing piece 202 has turning block 4, the last fixed surface of turning block 4 is connected with carousel 401, the lateral wall of carousel 401 is provided with rotates protrudingly, it presss from both sides tightly to make clamp splice 3 to the major axis to be convenient for, gag lever post 301 is provided with two, be sliding connection between two gag lever posts 301 and the bracing piece 202, gag lever post 301 is used for preventing that clamp splice 3 from taking place to deflect.

Lower extreme fixedly connected with clamp splice 3 of turning block 4, clamp splice 3 comprises bent block 305 and shock pad 306, the lower lateral wall of bent block 305 sets up to the arc, the lower surface of shock pad 306 evenly is provided with the non-slip groove, prevent that the major axis from rotating, shock pad 306 adopts the yielding rubber material to make, improve the shock attenuation effect, the last fixed surface of bent block 305 is connected with gag lever post 301, the last fixed surface of gag lever post 301 is connected with spacing protruding 302, be used for pressing from both sides tight reset spring 303, be provided with reset spring 303 between gag lever post 301 and the bracing piece 202, reset spring 303 can make the threaded connection between turning block 4 and the bracing piece 202 inseparabler, the last fixed surface middle part fixedly connected with of bent block 305 rotates and connects 304, be connected for rotating between the lower extreme of rotating joint 304 and turning block 4.

The working principle is as follows: firstly, a long shaft is placed in a supporting groove 102 on a supporting underframe 1, then a clamping block 3 is slid to enable the clamping block 3 to be evenly distributed on the upper side of the long shaft, a rotary disc 401 is rotated to enable a thread between a rotating block 4 and a supporting rod 202 to rotate, the clamping block 3 is further pushed to move downwards to clamp the long shaft, fastening work is completed, the clamping block 3 fixes the long shaft through a curved block 305 and a shock pad 306, the curved block 305 can be effectively prevented from rotating through a limiting rod 301, looseness of the clamping block 3 can be effectively reduced through a reset spring 303, vibration generated by a broaching action due to the action of a broaching tool can be reduced through the shock absorption action of the reset spring 303 and the shock pad 306 in a broaching processing process, coaxiality of inner holes and roughness of hole surfaces after processing are ensured, in addition, the supporting underframe 1 and a plurality of clamping blocks 3 can fix the long shafts with different lengths, the application range of the device is greatly improved, and the fixing cost of the long shaft is favorably reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims (8)

1. A clamp for long shaft broaching, comprising a support chassis (1), characterized in that: the upper side wall of the supporting underframe (1) is provided with two sliding grooves (101), the supporting underframe (1) is connected with a plurality of supporting frames (2) in a sliding manner through the sliding grooves (101), each supporting frame (2) consists of a sliding frame (201) and a supporting rod (202), and the middle part of each supporting rod (202) is in threaded connection with a rotating block (4);

the lower extreme fixedly connected with clamp splice (3) of turning block (4), clamp splice (3) comprise curved block (305) and shock pad (306), the last fixed surface of curved block (305) is connected with gag lever post (301), the last fixed surface of gag lever post (301) is connected with spacing protruding (302), be provided with reset spring (303) between gag lever post (301) and bracing piece (202).

2. A jig for long axis broaching as defined in claim 1, wherein: the upper side wall of the supporting underframe (1) is provided with a supporting groove (102), and the supporting groove (102) is in an inverted triangle shape.

3. A jig for long axis broaching as defined in claim 1, wherein: the sliding frame (201) is in sliding connection with the sliding groove (101).

4. A jig for long axis broaching as defined in claim 1, wherein: the number of the limiting rods (301) is two, and the two limiting rods (301) are connected with the supporting rod (202) in a sliding mode.

5. A jig for long axis broaching as defined in claim 1, wherein: the lower side wall of the curved block (305) is arranged to be arc-shaped.

6. A jig for long axis broaching as defined in claim 1, wherein: the lower surface of shock pad (306) evenly is provided with antiskid groove, shock pad (306) adopt the shock attenuation rubber materials to make.

7. A jig for long axis broaching as defined in claim 1, wherein: the upper surface of the rotating block (4) is fixedly connected with a rotating disc (401), and the outer side wall of the rotating disc (401) is provided with a rotating protrusion.

8. A jig for long axis broaching as defined in claim 1, wherein: the middle part of the upper surface of the curved block (305) is fixedly connected with a rotating joint (304), and the rotating joint (304) is rotatably connected with the lower end of the rotating block (4).

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