Shaft part clamp and tool applying same

Abstract

The utility model relates to a shaft part clamp and a tool applying the shaft part clamp, and the shaft part clamp comprises a base which is provided with a containing groove in a penetrating manner, and the containing groove is provided with a first clamping surface; the clamping piece is contained in the containing groove, provided with a second clamping face opposite to the first clamping face and capable of moving back and forth relative to the first clamping face so that the first clamping face can be close to or away from the second clamping face. Moreover, the first clamping face and the second clamping face are both V-shaped concave faces, and in the working state, the shaft part is arranged in the containing groove in a penetrating mode and can be clamped between the first clamping face and the second clamping face in the cross section direction of the shaft part. Compared with the prior art, the shaft part clamping device has the advantages that shaft parts can be stably clamped, displacement of the shaft parts is effectively avoided, the machining precision of the shaft parts is guaranteed, and meanwhile the machining safety can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to shaft parts machining technical field especially, relate to a kind of shaft parts fixture and the tooling of application with this shaft parts fixture. BACKGROUND

[0002] Shaft parts are widely used in mechanical field, for example, rotating shaft, shaft sleeve etc., currently, the tooling for shaft parts machining generally uses flat mouth clamp to hold parts, for example, Chinese utility model patent with patent No.ZL201020550479.3 (authorized announcement No.CN201807963U) discloses a kind of shaft parts polishing tooling, and specifically discloses the following contents: including front clamping piece and rear clamping piece, rear clamping piece includes mandrel, mandrel rear part is equipped with the installation section for cooperating with lathe tailstock, coaxial stop ring is arranged in the middle of mandrel, front end of bushing is equipped with the front clamping part for clamping shaft parts, the front part of the front clamping piece is equipped with the clamping part for cooperating with lathe chuck, the rear part of front clamping piece is equipped with the rear clamping part for clamping shaft parts corresponding with the front clamping part of bushing. Such as, Chinese invention patent with patent No.ZL202110138327.5 (authorized announcement No.CN112935870B) "a clamping system of double-spindle machining machine tool for shaft parts" etc..However, the tooling of existing application flat mouth clamp has the following problems: (1) not stable enough, not only affect the machining accuracy of shaft parts, but also exist certain security risks;(2) only single part processing can be carried out, and work efficiency is low;(3) only the same specification parts and / or the same type of parts can be processed, and the versatility is not high. SUMMARY

[0003] The first technical problem to be solved by the utility model is to provide a shaft parts fixture with stable clamping for the prior art.

[0004] The second technical problem to be solved by the utility model is to provide a shaft parts fixture with stable clamping and good versatility for the prior art.

[0005] The third technical problem to be solved by the utility model is to provide a shaft parts fixture with stable clamping and high work efficiency for the prior art.

[0006] The fourth technical problem to be solved by the utility model is to provide a tooling with the above-mentioned shaft parts fixture for the prior art.

[0007] The utility model discloses a technical scheme that solves at least one above-mentioned technical problem is as follows: a kind of shaft parts fixture, characterized by comprising:

[0008] Base, it is equipped with containing groove, the containing groove has first clamping surface;

[0009] Clamping piece, it is contained in above-mentioned containing groove, and it has second clamping surface with above-mentioned first clamping surface, and can be moved back and forth relative to above-mentioned first clamping surface, to make first clamping surface and second clamping surface close or separate;

[0010] And, above-mentioned first clamping surface and second clamping surface are V-shaped concave surface, working state, shaft parts are equipped in above-mentioned containing groove, and can be clamped between first clamping surface and second clamping surface along its own cross section direction.

[0011] Further, the angle size of the first clamping surface is different from the angle size of the second clamping surface. In the working state, the clamping piece exerts force on the clamped shaft part, and the above design is conducive to the uniform distribution of the force exerted by the clamping piece on the shaft part.

[0012] Further, the angle of the first clamping surface is less than or equal to 90°, and the angle of the second clamping surface is greater than or equal to 90°. Thus, the shaft part can be clamped more stably between the first clamping surface and the second clamping surface.

[0013] Further, the base is a square block, the containing groove is a square window along the thickness direction of the block, the first clamping surface is the groove surface of the first groove wall of the containing groove, and the clamping piece is arranged on the second groove wall of the containing groove, which is opposite to the first groove wall,

[0014] And, the clamping piece is a block, the first end surface of the clamping piece is the second clamping surface, and the two sides of the clamping piece are guided and matched with the corresponding groove surfaces of the containing groove to enable the clamping piece to slide back and forth relative to the first clamping surface. This not only makes the internal structure of the shaft part fixture in the utility model simple, but also enables the clamping piece to move back and forth relative to the first clamping surface smoothly.

[0015] Further, the second end of the clamping piece is detachably connected to the second groove wall of the containing groove, and the cross-sectional size of the clamping piece decreases from the second end to the first end and presents a W shape. This facilitates the disassembly and assembly of the clamping piece and the base, enables the clamping piece to move more smoothly, and enables the second clamping surface to be better arranged on the clamping piece.

[0016] Further, a connecting hole is formed in the second groove wall of the groove, the connecting hole extends along the moving direction of the clamping member and penetrates the surface of the base, a connecting shaft is arranged on the second end of the clamping member, the connecting shaft is arranged in the connecting hole and can move back and forth along the hole wall of the connecting hole, and a positioning structure is arranged for positioning the clamping member. On one hand, the detachable connection of the clamping member and the groove is realized, on the other hand, the clamping member moves back and forth more stably under the guidance of the connecting shaft and the hole wall of the connecting hole, and in addition, the reliable clamping of the shaft part is realized through the positioning of the positioning structure.

[0017] Further, the positioning structure comprises external threads arranged on the outer surface of the connecting shaft, internal threads arranged on the hole wall of the connecting hole, and a nut, the external threads can be threadedly connected with the internal threads, and the nut is threadedly connected on the connecting shaft and is located outside the base. In this way, the external threads on the connecting shaft, the internal threads on the hole wall of the connecting hole, and the nut can position the clamping member at the required position, and the reliable clamping of the shaft part is realized.

[0018] Further, the clamping member comprises a clamping block and a connecting block, one end of the clamping block is provided with the second clamping surface, and the clamping block and the connecting block are detachably connected to form a shaft hole for inserting the connecting shaft. In this way, the clamping member and the connecting shaft are conveniently disassembled and assembled, and different types of shaft parts can be clamped by replacing the clamping block (the shape of the second clamping surface of different clamping blocks is different, so that the clamping member can clamp shaft parts with different cross sections, such as circular cross section, regular polygonal cross section, etc.).

[0019] Further, one end of the clamping block is W-shaped to form the second clamping surface, the end face of the other end is a flat surface, one side of the end face protrudes a square-shaped protruding block, one side of the protruding block is recessed with a first notch penetrating along the length direction of the connecting shaft, the connecting block is also square-shaped, one side of the connecting block is recessed with a second notch penetrating along the length direction of the connecting shaft, the connecting block is placed on the other side of the end face, the first notch of the protruding block and the second notch of the connecting block are combined to form the shaft hole, and the protruding block and the connecting block are fixed by a fastener. In this way, the clamping block and the connecting block are conveniently disassembled and assembled, and the shaft hole is effectively combined during the assembly of the clamping block and the connecting block, and the clamping block and the connecting block are fixed by the fastener during the assembly, so that the connecting shaft is tightly inserted into the combined shaft hole.

[0020] Further, a position-avoiding recess is recessed in one side of the base, the position-avoiding recess penetrates the base along a direction perpendicular to the moving direction of the clamping member, and the first clamping surface and the second clamping surface are located in the position-avoiding recess. The position-avoiding recess facilitates the installation of the shaft part clamp on the tooling.

[0021] Further, the base is a long strip-shaped block, the container grooves are at least two and are arranged at intervals along the length direction of the base, and the clamping members are also at least two and correspond to the container grooves one by one. Thus, the shaft part clamp in the utility model can clamp multiple shaft parts at the same time, and effectively improves the work efficiency.

[0022] To further solve the fourth technical problem, the technical scheme is as follows: a tool, characterized in that the shaft part clamp is applied.

[0023] Compared with the prior art, the utility model has the advantages that: the base is provided with a container groove, the container groove has a first clamping surface, the clamping member accommodated in the container groove has a second clamping surface, the second clamping surface is opposite to the first clamping surface, and the clamping member can move back and forth relative to the first clamping surface, so that the first clamping surface is close to or away from the second clamping surface. In addition, the first clamping surface and the second clamping surface are both V-shaped concave surfaces, in the working state, the shaft part is arranged in the container groove and can be clamped between the first clamping surface and the second clamping surface in the direction of its own cross section. In this way, the first clamping surface and the second clamping surface can stably clamp the shaft part, effectively prevent the shaft part from being displaced, ensure the machining precision of the shaft part, and also ensure the machining safety. In addition, the movable clamping member can stably clamp the shaft part while being suitable for clamping shaft parts of various sizes, thereby improving the versatility of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 FIG. 1 is a structural schematic view of a shaft part clamp in an embodiment of the utility model;

[0025] Figure 2 FIG. 2 is a structural schematic view of the shaft part clamp in another direction; Figure 1 FIG. 3 is a structural exploded view of the shaft part clamp in the embodiment of the utility model;

[0026] Figure 3 FIG. 4 is a structural exploded view of a clamping member in the embodiment of the utility model.

[0027] Figure 4 FIG. 5 is a structural schematic view of the clamping member. DETAILED DESCRIPTION

[0028] The utility model will be further described in detail below in combination with the embodiment of the drawings.

[0029] In the description of the utility model, it is understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the utility model can be arranged in different directions, so these orientation terms are only as an illustration and should not be regarded as a limitation, for example, "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity. In addition, the features defined as "first", "second" can explicitly or implicitly include one or more features.

[0030] A tool includes a shaft part clamp as shown in the drawings, which comprises a base 1 and a clamping piece 2. Figures 1 to 4 The base 1 is provided with a containing groove 10, and the containing groove 10 has a first clamping surface 101. The clamping piece 2 is accommodated in the containing groove 10 and has a second clamping surface 20 opposite to the first clamping surface 101, and can move back and forth relative to the first clamping surface 101, so that the first clamping surface 101 is close to or away from the second clamping surface 20. In addition, the first clamping surface 101 and the second clamping surface 20 are both V-shaped concave surfaces, and in the working state, the shaft part is arranged in the containing groove 10 and can be clamped between the first clamping surface 101 and the second clamping surface 20 along the cross-sectional direction of the shaft part.

[0031] As can be seen from the above, the base 1 is provided with the containing groove 10, and the containing groove 10 has the first clamping surface 101. The clamping piece 2 accommodated in the containing groove 10 has the second clamping surface 20 opposite to the first clamping surface 101, and the clamping piece 2 can move back and forth relative to the first clamping surface 101, so that the first clamping surface 101 is close to or away from the second clamping surface 20. In addition, the first clamping surface 101 and the second clamping surface 20 are both V-shaped concave surfaces, and in the working state, the shaft part is arranged in the containing groove 10 and can be clamped between the first clamping surface 101 and the second clamping surface 20 along the cross-sectional direction of the shaft part. Thus, the first clamping surface 101 and the second clamping surface 20 in the utility model can stably clamp the shaft part, effectively avoid the displacement of the shaft part, ensure the machining precision of the shaft part, and also ensure the machining safety. In addition, the movable clamping piece 2 can stably clamp the shaft part while being suitable for clamping shaft parts of various sizes, thereby improving the versatility of the utility model.

[0032] Further, the angle of the first clamping surface 101 is different from the angle of the second clamping surface 20. In the working state, the clamping member 2 exerts force on the clamped shaft part, and the above design is conducive to the uniform distribution of the force exerted by the clamping member 2 on the shaft part. Preferably, the angle of the first clamping surface 101 is less than or equal to 90°, and the angle of the second clamping surface 20 is greater than or equal to 90°, so that the shaft part can be clamped more stably between the first clamping surface 101 and the second clamping surface 20. In this embodiment, specifically, the angle of the first clamping surface 101 is an acute angle, and the angle of the second clamping surface 20 is an obtuse angle.

[0033] Further, the base 1 is a square block, the container groove 10 is a square window opened along the thickness direction of the block, the first clamping surface 101 is the groove surface of the first groove wall of the container groove 10, and the clamping member 2 is arranged on the second groove wall of the container groove 10 opposite to the first groove wall. Moreover, the clamping member 2 is a block, the first end surface of the clamping member 2 is the second clamping surface 20, and the two sides of the clamping member 2 are guided and matched with the corresponding groove surfaces of the container groove 10 to enable the clamping member 2 to slide back and forth relative to the first clamping surface 101. In this way, not only can the internal structure of the shaft part clamp in the utility model be simple, but also the clamping member 2 can move back and forth relative to the first clamping surface 101 stably.

[0034] Further, the second end of the clamping member 2 is detachably connected to the second groove wall of the container groove 10, and the cross-sectional size of the clamping member 2 decreases from the second end to the first end and is in the shape of W. The clamping member 2 and the base 1 can be conveniently disassembled and assembled, the clamping member 2 can move more stably, and the second clamping surface 20 can be better arranged on the clamping member 2. Specifically, the second groove wall of the container groove 10 is provided with a connecting hole 11 extending along the moving direction of the clamping member 2 and penetrating to the surface of the base 1, the second end of the clamping member 2 is provided with a connecting shaft 3 penetrating in the connecting hole 11 and capable of moving back and forth along the hole wall of the connecting hole 11, and a positioning structure for positioning the clamping member 2 is further included. On the one hand, the detachable connection of the clamping member 2 and the container groove 10 can be realized, and on the other hand, the clamping member 2 can move back and forth more stably under the guidance of the connecting shaft 3 and the hole wall of the connecting hole 11. In addition, the reliable clamping of the shaft part can be ensured through the positioning of the positioning structure.

[0035] In the embodiment, the positioning structure comprises external threads (not shown) arranged on the outer surface of the connecting shaft 3, internal threads (not shown) arranged on the hole wall of the connecting hole 11, and a nut 4. The external threads can be threadedly connected with the internal threads, and the nut 4 is threadedly sleeved on the connecting shaft 3 and located outside the base 1. In this way, the external threads on the connecting shaft 3, the internal threads on the hole wall of the connecting hole 11, and the nut 4 can position the clamping piece 2 at a desired position, effectively ensuring reliable clamping of the shaft part.

[0036] Further, the clamping piece 2 comprises a clamping block 21 and a connecting block 22. One end of the clamping block 21 is provided with the second clamping surface 20, and the clamping block 21 is detachably connected with the connecting block 22 to form a shaft hole 23 for inserting the connecting shaft 3. In this way, the connecting shaft 3 and the clamping piece 2 are conveniently disassembled and assembled, and different types of shaft parts can be clamped by replacing the clamping block 21 (the shapes of the second clamping surfaces 20 of different clamping blocks 21 are different, so they can be used to clamp shaft parts with different cross sections, such as circular cross sections and regular polygonal cross sections), further improving the versatility of the shaft part clamp in the utility model. Specifically, one end of the clamping block 21 is W-shaped to form the second clamping surface 20, the other end is a flat surface, and one side of the flat surface protrudes a square protrusion 211. One side of the protrusion 211 is recessed with a first notch 231 extending along the length direction of the connecting shaft 3. The connecting block 22 is also square-shaped. One side of the connecting block 22 is recessed with a second notch 232 extending along the length direction of the connecting shaft 3. The connecting block 22 is placed on the other side of the flat surface, and the first notch 231 of the protrusion 211 and the second notch 232 of the connecting block 22 are combined to form the shaft hole 23, and the protrusion 211 and the connecting block 22 are fixed by the fastener 5. In this way, the clamping block 21 and the connecting block 22 are conveniently disassembled and assembled, and are effectively combined to form the shaft hole 23 during assembly. During assembly, the clamping block 21 and the connecting block 22 are fixed by the fastener 5, and the connecting shaft 3 is tightly inserted into the combined shaft hole 23. In the embodiment, the fastener 5 is a bolt, which is sequentially inserted into the first screw hole 220 of the connecting block 22 and the second screw hole 2110 of the protrusion 211.

[0037] In addition, in the embodiment, one side of the base 1 is concavely provided with a position-avoiding groove 12, the position-avoiding groove 12 penetrates the base 1 along a direction perpendicular to the moving direction of the clamping piece 2, and the first clamping surface 101 and the second clamping surface 20 are both located in the position-avoiding groove 12. Thus, the position-avoiding groove 12 facilitates the installation of the shaft part clamp on a tool. In addition, in the embodiment, the base 1 is a long strip-shaped block, the accommodating grooves 10 are at least two and are arranged at intervals along the length direction of the base 1, and the clamping pieces 2 are also at least two and correspond to the accommodating grooves 10 one by one. Thus, the shaft part clamp in the embodiment can clamp multiple shaft parts at the same time, and the working efficiency is effectively improved.

Claims

1. A shaft workpiece clamp characterized by, The utility model provides a kind of chucking device, including: Base (1), is provided with container groove (10), the container groove (10) has first clamping surface (101); Clamping piece (2) is contained in above-mentioned container groove (10), and it has second clamping surface (20) opposite with above-mentioned first clamping surface (101), and can move back and forth relative to above-mentioned first clamping surface (101), so that first clamping surface (101) and second clamping surface (20) are close or far apart; And, above-mentioned first clamping surface (101) and second clamping surface (20) are all V-shaped concave surface, in working condition, shaft parts are provided in above-mentioned container groove (10), and can be clamped between first clamping surface (101) and second clamping surface (20) along its own cross-sectional direction.

2. The shaft part clamp according to claim 1, wherein The angle of the first clamping surface (101) is different from the angle of the second clamping surface (20).

3. The shaft part clamp according to claim 2, wherein The angle of the first clamping surface (101) is less than or equal to 90°, and the angle of the second clamping surface (20) is greater than or equal to 90°.

4. The shaft part clamp according to claim 1 or 2 or 3, wherein The base (1) is a square block, the container groove (10) is a square window along the thickness direction of the block, the first clamping surface (101) is the groove surface of the first groove wall of the container groove (10), and the clamping piece (2) is arranged on the second groove wall of the container groove (10), which is opposite to the first groove wall. The clamping piece (2) is a block, the first end surface of the clamping piece (2) is the second clamping surface (20), and the two sides of the clamping piece (2) are guided and matched with the corresponding groove surfaces of the container groove (10) to enable the clamping piece (2) to slide back and forth relative to the first clamping surface (101).

5. The shaft part clamp according to claim 4, wherein The second end of the clamping piece (2) is detachably connected to the second groove wall of the container groove (10), and the cross-sectional size of the clamping piece (2) decreases from the second end to the first end and presents a W shape.

6. The shaft part clamp according to claim 5, wherein A connecting hole (11) is formed in the second groove wall of the container groove (10), the connecting hole (11) extends along the moving direction of the clamping piece (2) and penetrates to the surface of the base (1), a connecting shaft (3) is arranged on the second end of the clamping piece (2), the connecting shaft (3) penetrates the connecting hole (11) and can move back and forth along the hole wall of the connecting hole (11), and a positioning structure for positioning the clamping piece (2) is further included.

7. The shaft part clamp according to claim 6, wherein The positioning structure includes external threads arranged on the outer surface of the connecting shaft (3), internal threads arranged on the hole wall of the connecting hole (11), and a nut (4), the external threads can be threadedly connected with the internal threads, and the nut (4) is threadedly connected to the connecting shaft (3) and located outside the base (1).

8. The shaft part clamp according to claim 6, wherein The clamping piece (2) includes a clamping block (21) and a connecting block (22), one end of the clamping block (21) is provided with the second clamping surface (20), and the clamping block (21) is detachably connected with the connecting block (22) to form a shaft hole (23) for inserting the connecting shaft (3).

9. The shaft part clamp according to claim 8, wherein One end of the clamp block (21) is W-shaped to form the second clamping surface (20), the end surface of the other end is a flat surface, and a square-shaped protrusion (211) is protruded on one side of the end surface. The protrusion (211) has a first notch (231) penetrating along the length direction of the connecting shaft (3) on one side. The connecting block (22) is also square-shaped. One side of the connecting block (22) has a second notch (232) penetrating along the length direction of the connecting shaft (3), and the connecting block (22) is placed on the other side of the end surface, and the first notch (231) of the protrusion (211) and the second notch (232) of the connecting block (22) are combined to form the shaft hole (23), and the protrusion (211) and the connecting block (22) are fixed by the fastener (5).

10. The shaft part clamp according to claim 1 or 2 or 3, wherein One side of the base (1) has a clearance groove (12) penetrating the base (1) along a direction perpendicular to the moving direction of the clamp (2), and the first clamping surface (101) and the second clamping surface (20) are both located in the clearance groove (12).

11. The shaft part clamp according to claim 1 or 2 or 3, wherein The base (1) is a long strip-shaped block, the holding grooves (10) are at least two and are arranged in the length direction of the base (1) at intervals, and the clamps (2) are also at least two and correspond to the holding grooves (10) one by one.

12. A tooling apparatus characterized by, The shaft part clamp has the advantages that the shaft part clamp is simple in structure, convenient to use, and can be used for clamping shaft parts of different sizes.

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