CN221313295U - Firmly-clamped shaft lever clamp - Google Patents

Abstract

The utility model discloses a firmly clamped shaft lever clamp, which comprises a spanner, a fixing piece and a clamping piece, wherein the fixing piece is provided with a conical threaded hole, the peripheral side surface of the clamping piece is provided with a conical screw tooth, the clamping piece is provided with a through clamping hole, the lower end of the clamping piece is provided with a deformation groove communicated with the clamping hole, the upper end of the clamping piece is provided with a contraposition groove at the clamping hole, one end of the spanner is bent with a plug connector matched with the contraposition groove, the plug connector is provided with a avoidance hole matched with the clamping hole, the lower end of the clamping piece is deformed by adopting conical threads to extrude the lower end of the clamping piece, and the clamping force is increased when the number of turns of the clamping piece is increased, so that the shaft lever can be firmly clamped, and the shaft shoulder is effectively prevented from loosening during use or processing; meanwhile, the device is formed by only two main parts, namely the fixing part and the clamping part, the number of the parts is small, the design is simple, the manufacturing cost and the use cost of a user are effectively reduced, the operation steps are simple, the operation efficiency is high, and therefore the actual use requirements of the user are greatly met.

Description

Firmly-clamped shaft lever clamp

Technical Field

The utility model relates to the technical field of precision clamps, in particular to a firmly clamped shaft lever clamp.

Background

As is well known, a fixture is a device for fixing a work object in a machine manufacturing process so as to occupy a correct position for performing a construction or inspection, and is also called a fixture in a broad sense, a device for rapidly, conveniently and safely mounting a work piece at any process in the process.

For example: chinese patent No. CN201920489715.6 discloses a fast positioning angle shaft lever clamp, its main structure is: the clamp is cylindrical, two ends of the axis are respectively a clamping end and a mounting end, the clamping end is provided with a workpiece clamping hole, the positioning sleeve is coaxially sleeved outside the mounting end, the clamping end is provided with a cone-shaped shrinkage bulge, the outer diameter of the shrinkage bulge is gradually reduced from the clamping end to the mounting end, and the clamping end is further provided with a clamping shrinkage joint along the radial direction; the utility model provides a location sleeve is provided with the bellied loudspeaker shrink mouth of cooperation shrink towards the one end of anchor clamps, the one end of transfer line passes location sleeve fixed connection installation end, the actuating cylinder is connected to the other end of transfer line, though utilize above-mentioned anchor clamps can be applicable to the machining of multiple constant head tank and the comparatively accurate bent axle product of eccentric angle requirement, but the work piece grip hole of above-mentioned axostylus axostyle anchor clamps is when centre gripping axostylus axostyle class part, the clamping force that the axostylus axostyle received the inner wall of work piece grip hole is less, and then when the axostylus axostyle is rotatory or vibrations at a high speed, the holding power of adding of work piece grip hole can diminish, become flexible, the centre gripping is insecure, above-mentioned axostylus axostyle anchor clamps part is more simultaneously, the design is complicated, manufacturing cost and use cost are higher, the operation is comparatively loaded down with trivial when centre gripping axostylus axostyle at the centre gripping axostyle simultaneously, therefore above-mentioned defect is very obvious, we propose a firm centre gripping axostylus axostyle anchor clamps for solving above-mentioned problem for this.

Disclosure of utility model

In view of the foregoing deficiencies in the prior art, an object of the present utility model is to provide a firmly clamped shaft clamp.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a firm clamping's axostylus axostyle anchor clamps, includes spanner, mounting and clamping piece, set up the toper screw hole that runs through on the mounting, the week side of clamping piece is provided with the toper screw tooth with toper screw hole adaptation, set up the centre gripping hole that runs through on the clamping piece, the deformation groove with the centre gripping hole intercommunication has been seted up to the lower extreme of clamping piece, the upper end of clamping piece just is located clamping hole department and has been seted up the counterpoint groove, the one end of spanner bend have with the bayonet joint of counterpoint groove adaptation, set up on the bayonet joint with the dodge hole of centre gripping hole adaptation; the external shaft rod is inserted into the clamping hole, the conical screw teeth are screwed down into the conical threaded hole by external force through the wrench, and meanwhile, the lower end of the clamping piece is contracted towards the axis at the deformation groove and clamps the external shaft rod in the clamping hole.

Preferably, the upper end of the fixing piece is provided with an inclined chamfer surface at the conical threaded hole, and the lower end of the fixing piece is provided with a containing groove at the conical threaded hole.

Preferably, the alignment groove is a hexagonal groove or a quincuncial groove, and the plug is a hexagonal column or a quincuncial column.

Preferably, the upper end of the clamping piece is provided with a hand-twisting cap, and the peripheral side surface of the hand-twisting cap is provided with anti-slip patterns.

Preferably, the fixing piece is made of carbon steel or stainless steel or titanium alloy material, and the clamping piece is made of copper alloy or aluminum alloy material.

Preferably, the height of the conical threaded hole is higher than the height of the conical screw thread.

Preferably, the fixing piece and/or the clamping piece are/is provided with flat surfaces on the peripheral side.

Preferably, the inner wall of the clamping hole is provided with anti-skid patterns.

Compared with the prior art, the clamping device has obvious advantages and beneficial effects, in particular, due to the adoption of the scheme, the shaft rod is mainly inserted into the clamping hole, the conical screw teeth are screwed down into the conical screw holes through the spanner, the lower end of the clamping piece is contracted towards the axis by utilizing the extrusion force of the conical screw holes to the conical screw teeth on the clamping piece, the inner wall of the clamping hole further firmly clamps the peripheral side surface of the shaft rod, the lower end of the clamping piece is deformed by adopting the conical screw threads to extrude the clamping piece, the more the number of turns of the clamping piece is, the smaller the inner diameter of the clamping hole is, and the larger the clamping force is, so that the shaft rod can be firmly clamped, and the loosening of the shaft shoulder during use or processing is effectively prevented; meanwhile, the device is formed by only two main parts of the fixing part and the clamping part, the number of the parts is less, the design is simple, the manufacturing cost and the use cost of a user are effectively reduced, the feeding and discharging of the shaft lever can be carried out only by rotating the clamping part in the forward and reverse directions, the operation steps are simple, the efficiency of clamping operation is improved, the actual use requirements of the user are greatly met, the structure is simple, the operation is convenient, and the practicability is very strong.

Drawings

Fig. 1 is an exploded view of an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of an embodiment of the present utility model.

Fig. 3 is an assembly view of an embodiment of the present utility model.

In the figure:

1. A wrench; 2. a fixing member; 3. a clamping member; 4. a tapered threaded bore; 5. conical screw teeth; 6. a clamping hole; 7. a deformation groove; 8. an alignment groove; 9. a plug; 10. avoidance holes; 11. a shaft lever; 12. chamfering the surface; 13. a receiving groove; 14. screwing the cap by hand; 15. anti-skid lines; 16. flat surface.

Detailed Description

Embodiments of the utility model are described in detail below with reference to the attached drawings, but the utility model can be implemented in a number of different ways, which are defined and covered by the claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper end", "lower end", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 3, the firmly clamped shaft lever clamp provided in this embodiment includes a wrench 1, a fixing member 2 and a clamping member 3, wherein a penetrating tapered threaded hole 4 is formed in the fixing member 2, a tapered screw thread 5 adapted to the tapered threaded hole 4 is formed on the circumferential side surface of the clamping member 3, a penetrating clamping hole 6 is formed in the clamping member 3, a deformation groove 7 communicated with the clamping hole 6 is formed in the lower end of the clamping member 3, an alignment groove 8 is formed in the upper end of the clamping member 3 and located at the clamping hole 6, a plug connector 9 adapted to the alignment groove 8 is bent at one end of the wrench 1, and a avoiding hole 10 adapted to the clamping hole 6 is formed in the plug connector 9; the external shaft rod 11 is inserted into the clamping hole 6, the external force screws down the conical screw teeth 5 into the conical screw holes 4 through the wrench 1, and meanwhile, the lower end of the clamping piece 3 contracts towards the axis at the deformation groove 7 and clamps the external shaft rod 11 in the clamping hole 6.

When the embodiment actually works, firstly, the shaft lever 11 is inserted into the clamping hole 6, the conical screw teeth 5 are screwed down into the conical screw holes 4 through the wrench 1, the lower end of the clamping piece 3 is contracted towards the axis by utilizing the extrusion force of the conical screw teeth 5 on the clamping piece 3 by the conical screw holes 4, and then the inner wall of the clamping hole 6 firmly clamps the peripheral side surface of the shaft lever 11; meanwhile, the device is formed by only two main parts of the fixing part 2 and the clamping part 3, the number of the parts is small, the design is simple, the manufacturing cost and the use cost of a user are effectively reduced, the loading and unloading of the shaft lever 11 can be carried out only by rotating the clamping part 3 in forward and reverse directions, the operation steps are simple, the efficiency of the clamping operation is improved, and therefore the actual use requirements of the user are greatly met.

Further, the upper end of the fixing member 2 of the present embodiment is provided with an inclined chamfer 12 at the tapered screw hole 4, and the lower end of the fixing member 2 is provided with a receiving groove 13 at the tapered screw hole 4. The chamfer face 12 can guide the clamping piece 3 into the conical threaded hole 4 when being screwed on the fixing piece 2, the installation of the clamping piece 3 is facilitated, the accommodating groove 13 can avoid the lower end of the conical threaded hole 4 protruding from the lower end of the clamping piece 3, the forming and rotating number of turns of the clamping piece 3 moving up and down are increased, and then the clamping force of the clamping piece 3 is increased.

Further, the alignment groove 8 in this embodiment is a hexagonal groove or a plum blossom groove, and the plug 9 is a hexagonal column or a plum blossom column. The hexagonal groove or the plum blossom groove is a more common shape of the wrench 1, so that a user can conveniently purchase the wrench 1 with a corresponding shape for use.

Further, the upper end of the holder 3 of the present embodiment is provided with a hand screw cap 14, and the circumferential side of the hand screw cap 14 is provided with anti-slip patterns 15. When the wrench 1 is lost, a user can directly screw the clamping piece 3 through the hand-screw cap 14, the friction force can be improved through the anti-slip lines 15, slipping is caused when the wrench is placed and screwed, and therefore practical use of the user is facilitated.

Further, the fixing member 2 of the present embodiment is made of carbon steel or stainless steel or titanium alloy material, and the holding member 3 is made of copper alloy or aluminum alloy material. The lower end of the clamping piece 3 needs to be deformed when being extruded by the conical threaded hole 4, and the structural strength and rigidity of the copper alloy or aluminum alloy material are lower, so that the lower end of the clamping piece 3 is easy to deform by extrusion, the structure of the fixing piece 2 does not need to deform, and the clamping piece is manufactured by adopting carbon steel or stainless steel or titanium alloy material with higher strength and rigidity.

Further, the height of the tapered screw hole 4 of the present embodiment is higher than the height of the tapered screw tooth 5. Therefore, when the conical screw teeth 5 are rotationally meshed with the conical threaded holes 4, the conical screw teeth 5 can be meshed with all screw teeth in the conical threaded holes 4, so that the structural strength of the clamping piece 3 during screwing is improved, the conical screw teeth 5 are prevented from sliding due to overlarge torsion, and the reliability and the service life of a product during use are effectively improved.

Further, the fixing member 2 and/or the holding member 3 of the present embodiment are provided with flat surfaces 16 on the peripheral side surfaces. When the shaft hole in the clamping hole 6 is larger, a user can insert the jaw of the open-end wrench 1 at the flat position surface 16 to firmly screw the clamping piece 3 on the fixing piece 2, the rotation number and the clamping force of the clamping piece 3 are increased, and the actual operation and the use of the user are performed.

Further, the inner wall of the holding hole 6 of the present embodiment is provided with anti-slip patterns 15. The friction force of the clamping can be improved by setting the anti-skid patterns 15, the clamping pressure is increased, the stability of the shaft lever 11 clamped by the inner wall of the clamping hole 6 is improved, and the shaft lever 11 clamped is effectively prevented from loosening.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (8)

1. Firmly-clamped shaft lever clamp is characterized in that: the wrench comprises a wrench body, a fixing piece and a clamping piece, wherein a penetrating conical threaded hole is formed in the fixing piece, conical threads matched with the conical threaded hole are formed in the peripheral side face of the clamping piece, a penetrating clamping hole is formed in the clamping piece, a deformation groove communicated with the clamping hole is formed in the lower end of the clamping piece, an alignment groove is formed in the upper end of the clamping piece and located at the clamping hole, a plug connector matched with the alignment groove is bent at one end of the wrench body, and an avoidance hole matched with the clamping hole is formed in the plug connector; the external shaft rod is inserted into the clamping hole, the conical screw teeth are screwed down into the conical threaded hole by external force through the wrench, and meanwhile, the lower end of the clamping piece is contracted towards the axis at the deformation groove and clamps the external shaft rod in the clamping hole.

2. A firmly clamped shaft clamp as in claim 1, wherein: the upper end of mounting just is located toper screw hole department and is provided with the chamfer face of slope, the holding tank has been seted up to the lower extreme of mounting just being located toper screw hole department.

3. A firmly clamped shaft clamp as in claim 1, wherein: the alignment groove is a hexagonal groove or a plum blossom groove, and the plug connector is a hexagonal column or a plum blossom column.

4. A firmly clamped shaft clamp according to claim 1 or 2, characterized in that: the upper end of the clamping piece is provided with a hand-twisting cap, and the peripheral side surface of the hand-twisting cap is provided with anti-slip patterns.

5. A firmly clamped shaft clamp as in claim 1, wherein: the fixing piece is made of carbon steel or stainless steel or titanium alloy material, and the clamping piece is made of copper alloy or aluminum alloy material.

6. A firmly clamped shaft clamp as in claim 1, wherein: the height of the conical threaded hole is higher than that of the conical screw thread.

7. A firmly clamped shaft clamp as in claim 1, wherein: the fixing piece and/or the clamping piece are/is provided with flat surfaces on the peripheral side surfaces.

8. A firmly clamped shaft clamp as in claim 1, wherein: the inner wall of the clamping hole is provided with anti-skid patterns.