Clamping mechanism for round bar parts

Abstract

The utility model relates to the field of round rod type part machining, in particular to a round rod type part clamping mechanism which comprises a first part assembly, a limiting assembly is arranged on the top of the first part assembly in a sliding mode, the first part assembly comprises a U-shaped installation bottom plate, and a driving motor is arranged below one side of the U-shaped installation bottom plate. The output end of the driving motor penetrates out of the U-shaped mounting bottom plate to be connected with a driving synchronous belt wheel, the limiting assembly comprises an upper connecting plate, and a first driven synchronous belt wheel is arranged on one side of the bottom of the upper connecting plate. According to the clamping device, when the driving motor rotates forwards, the limiting assembly is pushed to the inner side, so that a part can be clamped through the pressing wheel, after the part is clamped, the force generated when the driving motor continues to rotate drives the pressing wheel to rotate, and therefore the part can be driven to rotate while being clamped; and the clamping force can be adjusted by manually screwing the nut.

Description

Technical Field

[0001] The utility model relates to the technical field of round bar parts processing, in particular to a round bar parts clamping mechanism. Background Art

[0002] The round rod parts clamping fixture is used for clamping cylindrical parts (such as cylindrical pins, end mills, etc.) in contact or non-contact high-precision instruments such as appearance inspection instruments, external dimension inspection instruments, and runout inspection instruments.

[0003] The existing clamping fixtures for round rod parts can mostly only meet a single clamping function when clamping cylindrical parts. When the cylindrical parts need to be changed, they mostly need to be rotated. The operation process is relatively cumbersome, and the cylindrical parts need to be clamped again after being rotated. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a round rod parts clamping mechanism.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The round rod parts clamping mechanism includes a first component assembly, the top of which is slidingly provided with a limit assembly, the first component assembly includes a U-shaped mounting base, a drive motor is provided below one side of the U-shaped mounting base, and the output end of the drive motor passes through the U-shaped mounting base and is connected to an active synchronous pulley;

[0007] The limiting assembly includes an upper connecting plate, a first driven synchronous pulley is provided on one side of the bottom of the upper connecting plate, and a pressure wheel is provided at the bottom of the first driven synchronous pulley, the other side of the bottom of the upper connecting plate is connected to the lower connecting plate, and a second driven synchronous pulley is provided between the lower connecting plate and the upper connecting plate.

[0008] In addition, a preferred structure is that the upper connecting plate is cross-shaped, and a hand-tightened nut is provided above the upper connecting plate at the second driven synchronous pulley.

[0009] In addition, a preferred structure is that the second driven synchronous pulley and the driving synchronous pulley are connected by a synchronous belt, and the driving synchronous pulley and the first driven synchronous pulley are connected by a synchronous belt.

[0010] In addition, a preferred structure is that guide rails are symmetrically provided on both sides of the top of the U-shaped mounting base plate, and a limit assembly is movably provided on the top of the guide rails.

[0011] In addition, a preferred structure is that an adjustment block is provided on the top of the U-shaped mounting base plate on one side of the limiting assembly, the adjustment block is L-shaped, and an adjustment screw is horizontally provided on one side of the adjustment block.

[0012] The beneficial effects of the utility model are:

[0013] In the utility model, when the driving motor rotates forward, the limit assembly will be pushed inward, so that the part can be clamped by the pressure wheel. When the part is clamped, the force of the driving motor continuing to rotate will drive the pressure wheel to rotate, so that the part can be clamped and driven to rotate at the same time, and the clamping force can be adjusted by hand-tightening the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the round rod parts clamping mechanism proposed by the utility model;

[0015] Figure 2 is a structural schematic diagram of a first component assembly;

[0016] Figure 3 It is a structural diagram of the limit component.

[0017] In the figure: 1. Drive motor; 2. U-shaped mounting base; 3. Adjustment block; 4. Limit assembly; 41. Upper connecting plate; 42. Pressure wheel; 43. First driven synchronous pulley; 44. Second driven synchronous pulley; 45. Lower connecting plate; 46. Hand-tightening nut. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-3 The round rod parts clamping mechanism includes a first component assembly, a limit assembly 4 is provided on the top sliding surface of the first component assembly, the first component assembly includes a U-shaped mounting base plate 2, a driving motor 1 is provided below one side of the U-shaped mounting base plate 2, and the output end of the driving motor 1 passes through the U-shaped mounting base plate 2 and is connected to an active synchronous pulley;

[0020] In addition, the limiting assembly 4 includes an upper connecting plate 41, a first driven synchronous pulley 43 is provided on one side of the bottom of the upper connecting plate 41, and a pressure wheel 42 is provided at the bottom of the first driven synchronous pulley 43, a lower connecting plate 45 is connected to the other side of the bottom of the upper connecting plate 41, a second driven synchronous pulley 44 is provided between the lower connecting plate 45 and the upper connecting plate 41, and a damping gasket is provided between the second driven synchronous pulley 44 and the upper connecting plate 41.

[0021] At the same time, the upper connecting plate 41 is cross-shaped, and a hand-tightening nut 46 is provided above the upper connecting plate 41 at the second driven synchronous pulley 44, wherein the hand-tightening nut 46 is used to adjust the clamping force between the damping gasket and the second driven synchronous pulley 44. Since the diameters of the workpiece to be measured have different specifications, the forces required for fixing and rotating the workpiece to be measured during the measurement process are different. Therefore, the static friction between the two is adjusted by adjusting the clamping force between the damping gasket and the second driven synchronous pulley 44.

[0022] At the same time, the second driven synchronous pulley 44 and the driving synchronous pulley are connected by a synchronous belt, and the driving synchronous pulley and the first driven synchronous pulley 43 are connected by a synchronous belt. When the driving motor 1 drives the driving synchronous pulley to rotate, it drives the first driven synchronous pulley 43 and the second driven synchronous pulley 44 connected by the synchronous belt to rotate synchronously.

[0023] Furthermore, guide rails are symmetrically arranged on both sides of the top of the U-shaped mounting base 2, and a limit assembly 4 is movably arranged on the top of the guide rails, wherein the first component assembly and the limit assembly 4 are movably connected through two guide rails, so that the limit assembly 4 can slide freely.

[0024] Furthermore, an adjustment block 3 is provided on one side of the limit component 4 at the top of the U-shaped mounting base plate 2. The adjustment block 3 is L-shaped, and an adjustment screw is horizontally provided on one side of the adjustment block 3. The limit component 4 is limited by the adjustment screw, and its pressure wheel 42 is limited to prevent the pressure wheel from retreating too much.

[0025] In this embodiment, the first component assembly and the limiting assembly 4 are movably connected via two guide rails, so that the limiting assembly 4 can slide freely.

[0026] Furthermore, the driving motor 1 drives the driving synchronous pulley to rotate, and at the same time drives the first driven synchronous pulley 43 and the second driven synchronous pulley 44 connected by the synchronous belt to rotate synchronously.

[0027] At the same time, the active synchronous pulley and the drive motor 1 are fixed on the U-shaped mounting base 2, while the first driven synchronous pulley 43 and the second driven synchronous pulley 44 are on the limit assembly 4. When they rotate synchronously, the limit assembly 4 will be pushed inward, so that the parts can be clamped by the pressure wheel 42.

[0028] Moreover, when the part is clamped, since the limit assembly 4 cannot continue to move, the rotation force of the drive motor 1 will cause the first driven synchronous pulley 43 to continue to rotate, and at the same time drive its pressure wheel 42 to rotate, thereby achieving the goal of clamping the part while driving the part to rotate.

[0029] Furthermore, by rotating the adjusting screw position, when the driving motor 1 is reversed, the limiting component 4 will be pushed out in the opposite direction, wherein the limiting component 4 can be limited by the end of the adjusting screw.

[0030] In the present invention, when the driving motor 1 rotates forward, the limit assembly 4 will be pushed inward, so that the part can be clamped by the pressure wheel 42. After the part is clamped, the force of the driving motor 1 continuing to rotate will drive its pressure wheel 42 to rotate, so that the part can be clamped and driven to rotate at the same time, and the clamping force can be adjusted by hand-tightening the nut.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A round bar parts clamping mechanism, comprising a first component assembly, characterized in that: A limit assembly (4) is provided on the top of the first component assembly for sliding movement. The first component assembly comprises a U-shaped mounting base plate (2). A driving motor (1) is provided below one side of the U-shaped mounting base plate (2). The output end of the driving motor (1) passes through the U-shaped mounting base plate (2) and is connected to an active synchronous pulley. The limiting assembly (4) comprises an upper connecting plate (41), a first driven synchronous pulley (43) is provided on one side of the bottom of the upper connecting plate (41), and a pressure wheel (42) is provided on the bottom of the first driven synchronous pulley (43), a lower connecting plate (45) is connected to the other side of the bottom of the upper connecting plate (41), and a second driven synchronous pulley (44) is provided between the lower connecting plate (45) and the upper connecting plate (41).

2. The round rod parts clamping mechanism according to claim 1, characterized in that: The upper connecting plate (41) is cross-shaped, and a hand-tightening nut (46) is provided above the upper connecting plate (41) at the second driven synchronous pulley (44).

3. The round rod parts clamping mechanism according to claim 1, characterized in that: The second driven synchronous pulley (44) and the driving synchronous pulley are connected via a synchronous belt, and the driving synchronous pulley and the first driven synchronous pulley (43) are connected via a synchronous belt.

4. The round rod parts clamping mechanism according to claim 1, characterized in that: Guide rails are symmetrically arranged on both sides of the top of the U-shaped installation base plate (2), and a limiting component (4) is movably arranged on the top of the guide rails.

5. The round rod parts clamping mechanism according to claim 1, characterized in that: An adjustment block (3) is provided on the top of the U-shaped mounting base plate (2) and located on one side of the limiting assembly (4). The adjustment block (3) is L-shaped, and an adjustment screw is horizontally provided on one side of the adjustment block (3).

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