Clamp for shaft workpieces

Abstract

The utility model relates to the technical field of shaft workpiece machining, in particular to a clamp for a shaft workpiece. A clamp for shaft workpieces comprises a fixing block, a supporting block used for supporting the shaft workpieces is arranged on the lower side of the fixing block, a plurality of matching holes and a plurality of clamping holes used for positioning the shaft workpieces are formed in the fixing block, and the clamping holes correspond to the matching holes one to one and are communicated with the matching holes. An elastic part is arranged between the clamping hole and the matching hole, one end of the elastic part is a fixed end and is fixed with the fixed block, the other end of the elastic part is a movable end, a communicating gap between the clamping hole and the matching hole is positioned at the movable end, and the elastic part is arc-shaped and extends along the circumferential direction of the clamping hole. The clamp has the advantages of being convenient to clamp and capable of improving production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft workpiece processing, in particular to a fixture for shaft workpieces. Background Art

[0002] In order to facilitate the cooperation with parts such as couplings, a cooperation groove will be processed on the end of the rotor shaft. The cooperation groove needs to extend axially along the rotor shaft and pass through the opposite side walls of the rotor shaft.

[0003] The patent with application number 202021604440.5 discloses a fixing fixture for milling shaft workpieces, including a lower fixed movable block and an upper fixed movable block. The upper fixed movable block and the lower fixed movable block are provided with a plurality of V-shaped cavities opposite to each other up and down. One side of the upper fixed movable block is provided with a first positioning seat for supporting one end of the shaft workpiece.

[0004] The above patent solution requires the use of fasteners to assemble and lock in order to achieve the clamping of shaft workpieces, and processing workers are required to tighten and loosen the fasteners, which is more troublesome and has low production efficiency. Utility Model Content

[0005] The utility model aims to provide a fixture for shaft workpieces which is convenient for clamping and can improve production efficiency.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a clamp for shaft workpieces, including a fixed block, characterized in that: a supporting block for supporting the shaft workpiece is provided on the lower side of the fixed block, a plurality of matching holes and a plurality of clamping holes for positioning the shaft workpiece are provided on the fixed block, the clamping holes correspond to the matching holes one by one and are connected, an elastic part is provided between the clamping holes and the matching holes, one end of the elastic part is a fixed end and is fixed to the fixed block, and the other end of the elastic part is a movable end, the connecting gap between the clamping hole and the matching hole is located at the movable end, and the elastic part is arc-shaped and extends along the circumferential direction of the clamping hole.

[0007] Preferably, a clamping protrusion is provided on one side of the movable end of the elastic part close to the clamping hole. The above arrangement reduces the contact area between the elastic part and the shaft workpiece, and at the same time enables a better deformation effect of the elastic part.

[0008] Preferably, the surface of the clamping protrusion that contacts the side wall of the shaft workpiece is an arc surface, and the center of the arc surface of the clamping protrusion deviates from the circular hole of the clamping hole. Through the above arrangement, the contact surface between the clamping protrusion and the shaft workpiece is linear, further reducing the contact area between the elastic part and the shaft workpiece.

[0009] Preferably, the fixing block is further provided with a plurality of avoidance holes, and the hole wall of the clamping hole is concave away from the matching hole and the elastic part to form the avoidance holes.

[0010] Preferably, the fixing block is provided with a matching groove penetrating the side wall, the lower ends of each clamping hole and the matching hole are connected to the matching groove, and the width of the matching groove is smaller than the aperture of the clamping hole.

[0011] Preferably, the support block includes a connecting portion connected to the fixed block and a supporting portion for supporting a shaft workpiece, one end of the supporting portion is connected to the lower end of the connecting portion and makes the support block L-shaped, and the support block and the fixed block are detachably fixed.

[0012] Preferably, the downward projection of the wall of the clamping hole is only partially located on the supporting block.

[0013] The utility model has the advantages of being easy to clamp and being able to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 This is another structural schematic diagram of the utility model.

[0016] Figure 3 It is a top view of the clamping hole of the utility model. DETAILED DESCRIPTION

[0017] The utility model is further described below based on the accompanying drawings and specific embodiments.

[0018] Depend on Figures 1 to 3 As shown, the present embodiment discloses a fixture for shaft workpieces, including a fixed block 10, a support block 20 for supporting the shaft workpiece 30 is provided on the lower side of the fixed block 10, a plurality of matching holes 11 and a plurality of clamping holes 12 for positioning the shaft workpiece 30 are provided on the fixed block 10, the plurality of clamping holes 12 are arranged side by side and spaced apart from each other on the left and right sides, the clamping holes 12 correspond to the matching holes 11 one by one and are connected, an elastic portion 13 is provided between the clamping holes 12 and the matching holes 11, one end of the elastic portion 13 is a fixed end and is fixed to the fixed block 10, and the other end of the elastic portion 13 is a movable end, the connecting gap between the clamping hole 12 and the matching hole 11 is located at the movable end of the elastic portion 13, and the elastic portion 13 is arc-shaped and extends along the circumferential direction of the clamping hole 12.

[0019] Among them, a clamping protrusion 131 is provided on one side of the movable end of the elastic part 13 close to the clamping hole 12. The surface of the clamping protrusion 131 for contacting the side wall of the shaft workpiece 30 is an arc surface, and the center of the arc surface of the clamping protrusion 131 deviates from the circular hole of the clamping hole.

[0020] The fixing block 10 is also provided with a plurality of avoidance holes 14, which correspond to and are directly connected with the clamping holes 12 one by one, and the hole wall of the clamping hole 12 away from the matching hole 11 and the elastic part 13 is concave to form the avoidance hole 14. The fixing block 10 is provided with a matching groove 15 that penetrates the left and right side walls, and the lower end of each clamping hole 12, the lower end of the matching hole 11 and the lower end of the avoidance hole 14 are all connected with the matching groove 15, and the width of the matching groove 15 along the front-to-back direction is smaller than the hole diameter of the clamping hole 12.

[0021] The support block 20 includes a connecting portion 21 connected to the fixed block 10 and a supporting portion 22 for supporting the shaft workpiece 30. One end of the supporting portion 22 is connected to the lower end of the connecting portion 21 and makes the support block 20 L-shaped. The support block 20 and the fixed block 10 are detachably fixed, and the downward projection of the wall of the clamping hole 12 is only partially located on the supporting portion 22 of the support block 20.

[0022] This embodiment has the advantages of being easy to clamp and improving production efficiency.

Claims

1. A fixture for a shaft workpiece, comprising a fixing block, characterized in that: A supporting block for supporting shaft-like workpieces is provided on the lower side of the fixed block, a plurality of matching holes and a plurality of clamping holes for positioning shaft-like workpieces are provided on the fixed block, the clamping holes correspond to and are connected with the matching holes one by one, an elastic part is provided between the clamping holes and the matching holes, one end of the elastic part is a fixed end and is fixed to the fixed block, and the other end of the elastic part is a movable end, a connecting gap between the clamping hole and the matching hole is located at the movable end, and the elastic part is arc-shaped and extends along the circumferential direction of the clamping hole.

2. The fixture for shaft workpieces according to claim 1, characterized in that: A clamping protrusion is provided on one side of the movable end of the elastic part close to the clamping hole.

3. The fixture for shaft workpieces according to claim 2, characterized in that: The surface of the clamping protrusion that is used to contact the side wall of the shaft workpiece is an arc surface, and the center of the arc surface of the clamping protrusion deviates from the circular hole of the clamping hole.

4. The fixture for shaft workpieces according to claim 1, characterized in that: The fixing block is also provided with a plurality of avoidance holes, and the clamping hole is concave away from the matching hole and the hole wall of the elastic part to form the avoidance holes.

5. The fixture for shaft workpieces according to claim 1, characterized in that: The fixing block is provided with a matching groove penetrating the side wall, the lower ends of each clamping hole and the matching hole are communicated with the matching groove, and the width of the matching groove is smaller than the aperture of the clamping hole.

6. The fixture for shaft workpieces according to claim 1, characterized in that: The support block includes a connecting portion connected to the fixed block and a supporting portion for supporting a shaft workpiece, one end of the supporting portion is connected to the lower end of the connecting portion to make the support block L-shaped, and the support block and the fixed block are detachable and fixed.

7. The fixture for shaft workpieces according to claim 1 or 6, characterized in that: The downward projection of the wall of the clamping hole is only partially located on the supporting block.

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