Flexible control clamping jaw for detecting concentricity of stainless steel shaft

Abstract

The utility model relates to the technical field of clamping jaw technology, in particular to a flexible control clamping jaw for detecting concentricity of a stainless steel shaft, which comprises a base, a lifting component is fixedly connected onto the base, a clamping jaw mechanism is arranged at the upper end of the lifting component, and a push rod body moves upwards to drive a fixing ring to move upwards together. The inclined surfaces abut against the inclined surfaces of the triangular blocks, so that when the inclined surfaces move upwards, the inclined surfaces are pushed to deviate, the clamping jaws rotate by an angle, the upper end of the push rod assembly abuts against the inclined surfaces of the triangular blocks, when the push rod assembly moves upwards, the triangular blocks drive the clamping jaws to rotate on the connecting ring, and at the moment, the clamping jaws are opened; when the push rod assembly is loosened, under the action of the torsion spring, the clamping jaws are reset, the stainless steel shaft is clamped, the three jaws are synchronously opened and closed through the linkage design of the conical push rod, single-jaw displacement deviation is eliminated, it is ensured that the clamping center coincides with the axis, the structure is simple, and the maintenance cost is low.

Description

Technical Field

[0001] This utility model relates to the field of gripper technology, specifically a flexible control gripper for detecting the concentricity of stainless steel shafts. Background Technology

[0002] Stainless steel shafts are made of austenitic or martensitic stainless steel with high corrosion resistance and high strength. Through heat treatment processes (such as solution treatment), mechanical properties and machinability are balanced to meet the industrial environment's requirements for wear resistance and oxidation resistance. In the early days, they relied on pneumatic or hydraulic systems, but now they mostly adopt electric solutions that combine servo motors with reducers. Through closed-loop control, the clamping force and positioning accuracy can be precisely adjusted to adapt to the flexible gripping of complex workpieces.

[0003] A fastening mechanism for a transmissive lens retainer, with publication number CN222450328U, belongs to the field of lens retainer fastening. It solves the problem that fastening devices cannot quantify torque, and excessive torque can damage the lens appearance or injure the operator. It includes a frame, a drive device, a clamping device, a receiving device, a torque limiter, and a handle. The drive device is mounted on the frame. The clamping device includes two jaws, which the drive device can drive to move closer or further apart. The receiving device is mounted on the frame via the torque limiter. When the force on the receiving device is less than the preset torque of the torque limiter, the relative position of the receiving device and the frame is fixed; when the force on the receiving device is greater than the preset torque of the torque limiter, the receiving device rotates on the frame. The handle is fixedly connected to the receiving device. It can ensure the secure installation of the retainer while preventing excessive torque on the retainer from damaging the lens appearance or injuring the operator.

[0004] Existing stainless steel shaft clamps have the following main disadvantages:

[0005] Most existing grippers are single-jaw structures, which cannot ensure that the gripping center coincides with the shaft center when clamping stainless steel shafts, resulting in inaccurate monitoring. Utility Model Content

[0006] The purpose of this invention is to provide a flexible control gripper for detecting the concentricity of stainless steel shafts, so as to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] A flexible control gripper for detecting the concentricity of stainless steel shafts is provided, comprising a base, a lifting assembly fixedly connected to the base, and a gripper mechanism at the upper end of the lifting assembly; wherein...

[0009] The gripper mechanism includes:

[0010] A connecting ring is located at the upper end of the lifting assembly. Three gripper body assemblies are rotatably connected to the connecting ring, and a push rod assembly is provided at the lower end of the gripper body assembly.

[0011] Furthermore, the lifting assembly includes:

[0012] The motor is fixedly connected to the base. The output end of the motor is fixedly connected to a bevel gear. Three lead screws are rotatably connected to the base. The lead screws are engaged with nuts through threads. The lower end of the lead screws is fixedly connected to a synchronous pulley, which is driven by a synchronous belt.

[0013] Furthermore, the gripper body assembly includes:

[0014] The gripper has a triangular block fixedly connected to one end, and two sides of the gripper are respectively fixedly connected to one end of two torsion springs. The other end of the torsion springs is fixedly connected to a connecting ring. The gripper is rotatably connected to the connecting ring. A connecting hole is provided on the connecting ring, and a linear bearing is fixedly connected in the connecting hole.

[0015] Furthermore, the push rod assembly includes:

[0016] The push rod body has a fixed ring fixedly connected to one end. The outer side of the fixed ring has three inclined surfaces that abut against the inclined surfaces of the triangular block.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The push rod moves upward, causing the fixed ring to move upward as well, which in turn moves the three inclined planes upward together. The inclined planes abut against the inclined planes of the triangular block, causing the inclined planes to push and deflect as they move upward, thus causing the gripper to rotate at an angle. The upper end of the push rod assembly abuts against the inclined plane of the triangular block. As the push rod assembly moves upward, the triangular block causes the gripper to rotate on the connecting ring, at which point the gripper opens. When the push rod assembly is released, the gripper returns to its original position under the action of the torsion spring, clamping the stainless steel shaft. The three grippers open and close synchronously through the tapered push rod linkage design, eliminating single-grip displacement deviation and ensuring that the clamping center coincides with the shaft center. The structure is simple and the maintenance cost is low. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the lifting component of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the push rod assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the gripper body assembly of this utility model;

[0023] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the connecting ring of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Base;

[0026] 2. Lifting assembly; 21. Motor; 22. Bevel gear; 23. Lead screw; 24. Nut; 25. Synchronous pulley; 26. Synchronous belt;

[0027] 3. Gripper mechanism; 31. Connecting ring; 311. Connecting hole; 32. Gripper body assembly; 321. Gripper; 322. Triangular block; 323. Torsion spring; 33. Push rod assembly; 331. Push rod body; 332. Fixing ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1 As shown, a flexible control gripper for detecting the concentricity of stainless steel shafts includes a base 1, a lifting assembly 2 fixedly connected to the base 1, and a gripper mechanism 3 provided at the upper end of the lifting assembly 2; wherein...

[0030] The gripper mechanism 3 includes:

[0031] A connecting ring 31 is located at the upper end of the lifting assembly 2. Three gripper body assemblies 32 are rotatably connected to the connecting ring 31. A push rod assembly 33 is provided at the lower end of the gripper body assembly 32.

[0032] By squeezing the push rod assembly 33, the upper end of the push rod assembly 33 pushes the gripper body assembly 32 to rotate on the connecting ring 31, placing the stainless steel shaft in the middle of the three gripper body assemblies 32. Then, the push rod assembly 33 is released, at which point the gripper body assembly 32 resets and clamps the stainless steel shaft. At the same time, the lifting assembly 2 can be used to drive the connecting ring 31 up and down according to different needs, thereby driving the gripper body assembly 32 up and down.

[0033] Reference Figure 2As shown, the lifting assembly 2 includes:

[0034] Motor 21 is fixedly connected to base 1. The output end of motor 21 is fixedly connected to a bevel gear 22. Three lead screws 23 are rotatably connected to base 1. The lead screws 23 are engaged with nuts 24 by threads. The lower end of the lead screws 23 is fixedly connected to a synchronous pulley 25. The synchronous pulley 25 is driven by a synchronous belt 26.

[0035] By starting the motor 21, the output end of the motor 21 drives the bevel gear 22 to rotate. Through the meshing of the two bevel gears 22, the synchronous pulley 25 is driven to rotate, which in turn drives the three lead screws 23 to rotate in the same direction, causing the nut 24 to move on the lead screw 23. Since the nut 24 is fixed to the connecting ring 31, the connecting ring 31 moves up and down together when the nut 24 moves.

[0036] Reference Figure 4 As shown in Figure 5, the gripper body assembly 32 includes:

[0037] The gripper 321 has a triangular block 322 fixedly connected to one end of it. The two sides of the gripper 321 are respectively fixedly connected to one end of two torsion springs 323. The other end of the torsion springs 323 is fixedly connected to the connecting ring 31. The gripper 321 is rotatably connected to the connecting ring 31. The connecting ring 31 has a connecting hole 311, and a linear bearing is fixedly connected in the connecting hole 311.

[0038] The upper end of the push rod assembly 33 abuts against the inclined surface of the triangular block 322. When the push rod assembly 33 moves upward, the triangular block 322 causes the gripper 321 to rotate on the connecting ring 31. At this time, the gripper 321 opens. When the push rod assembly 33 is released, the gripper 321 returns to its original position under the action of the torsion spring 323, clamping the stainless steel shaft.

[0039] Reference Figure 3 As shown, the push rod assembly 33 includes:

[0040] The push rod body 331 has a fixed ring 332 fixedly connected to one end. The outer side of the fixed ring 332 is provided with three inclined surfaces, which abut against the inclined surfaces of the triangular block 322.

[0041] The push rod body 331 moves upward, causing the fixed ring 332 to move upward as well, which in turn causes the three inclined planes to move upward together. The inclined planes abut against the inclined planes of the triangular block 322, causing the inclined planes to push and deflect as they move upward, thereby causing the gripper 321 to rotate by an angle.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A flexible control gripper for detecting the concentricity of stainless steel shafts, characterized in that: The system includes a base (1), on which a lifting assembly (2) is fixedly connected, and at the upper end of the lifting assembly (2) is a gripper mechanism (3); wherein The gripper mechanism (3) includes: A connecting ring (31) is located at the upper end of the lifting assembly (2). Three gripper body assemblies (32) are rotatably connected to the connecting ring (31). A push rod assembly (33) is provided at the lower end of the gripper body assembly (32).

2. The flexible control gripper for detecting the concentricity of a stainless steel shaft according to claim 1, characterized in that: The lifting assembly (2) includes: The motor (21) is fixedly connected to the base (1). The output end of the motor (21) is fixedly connected to a bevel gear (22). Three lead screws (23) are rotatably connected to the base (1). The lead screws (23) are engaged with nuts (24) through threads. The lower end of the lead screws (23) is fixedly connected to a synchronous pulley (25). The synchronous pulley (25) is driven by a synchronous belt (26).

3. The flexible control gripper for detecting the concentricity of a stainless steel shaft according to claim 2, characterized in that: The gripper body assembly (32) includes: The gripper (321) has a triangular block (322) fixedly connected to one end of it. The two sides of the gripper (321) are fixedly connected to one end of two torsion springs (323), and the other end of the torsion springs (323) is fixedly connected to the connecting ring (31). The gripper (321) is rotatably connected to the connecting ring (31). The connecting ring (31) has a connecting hole (311), and a linear bearing is fixedly connected in the connecting hole (311).

4. A flexible control gripper for detecting the concentricity of a stainless steel shaft according to claim 3, characterized in that: The push rod assembly (33) includes: The push rod body (331) has a fixed ring (332) fixedly connected to one end. The outer side of the fixed ring (332) is provided with three inclined surfaces, which abut against the inclined surfaces of the triangular block (322).

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