A high-efficiency processing chamfer gauge measuring rod with a testing tool

By designing a fixture that includes a base, threaded rod, pressure plate, and pressure sensor, the problem of unstable handheld operation during the processing of chamfering gauge rods was solved, achieving efficient clamping and stable positioning, and improving processing efficiency and rod stability.

CN224398518UActive Publication Date: 2026-06-23SHANDONG LONGJI MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG LONGJI MACHINERY
Filing Date
2025-06-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

When machining the measuring rod of a chamfering gauge, the existing technology suffers from unstable hand-held operation, resulting in low machining pass rate, high cost, and difficulty in guaranteeing geometric accuracy and surface quality.

Method used

A fixture tooling was designed, which includes components such as a base, a threaded rod, a pressure plate, a lifting cylinder, and a pressure sensor. The lifting cylinder drives the pressure plate to move up and down, and the V-groove engagement is used to achieve vertical positioning of the measuring rod. The pressure sensor monitors the pressure to prevent damage to the measuring rod.

Benefits of technology

This technology enables efficient clamping of the measuring rod, improves processing efficiency, reduces the labor intensity of workers, and increases the processing qualification rate and the stability of the measuring rod.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224398518U_ABST
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Abstract

The utility model provides a kind of efficient processing chamfer gauge measuring rod with testing fixture tool, including base, the top end vertical fixed of base has threaded rod, the pressing plate of horizontal setting at the top end of base, the nut of setting on threaded rod, threaded rod passes through the pressing plate, the upper end surface of base is provided with V groove one, nut is set in the upper of pressing plate, V groove one is set with measuring rod in clamping. The both ends of pressing plate are respectively fixed and set to have lifting cylinder, the free end coaxially of lifting cylinder is fixed with embedding column, embedding column is inserted into the through hole of the both ends setting of pressing plate, the free end of lifting cylinder and the bottom surface of pressing plate contact. The utility model provides a kind of efficient processing chamfer gauge measuring rod with testing fixture tool, when the measuring rod of chamfer gauge is processed, realize the technical effect of efficient clamping, improve processing efficiency, save time and effort.
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Description

Technical Field

[0001] This utility model belongs to the field of chamfering gauge technology, specifically relating to a high-efficiency inspection tool for processing chamfering gauge measuring rods. Background Technology

[0002] The measuring rod of a chamfering gauge is its core measuring component, especially in gauges with dial indicators (micrometers / dial gauges) or digital displays. Its machining quality directly affects the gauge's accuracy, stability, and lifespan. During machining, the measuring rod may face the following major problems: For example, measuring rods used to measure chamfers in small holes or complex locations may be very small (e.g., diameter <1mm). Machining slender rods (milling flat surfaces) is prone to deformation and vibration, placing extremely high demands on machine tools, cutting tools, fixtures, and operator skills. Currently, operators often use pliers to hold the measuring rod for positioning; however, handheld operation is unstable, resulting in low yield rates, high costs, and difficulty in guaranteeing geometric accuracy and surface quality. Utility Model Content

[0003] The purpose of this invention is to provide a high-efficiency tooling fixture for machining chamfered gauge rods, which solves the technical problem of how to achieve efficient clamping when machining chamfered gauge rods, thereby improving machining efficiency and saving time and effort.

[0004] A high-efficiency inspection fixture for machining chamfered gauge rods includes a base, a threaded rod vertically fixed to the top of the base, a pressure plate horizontally disposed at the top of the base, and a nut sleeved on the threaded rod. The threaded rod passes through the pressure plate. A V-groove is provided on the upper end face of the base. The nut is disposed above the pressure plate, and the measuring rod is clamped in the V-groove.

[0005] Lifting cylinders are fixedly installed at both ends of the pressure plate. An embedded column is coaxially fixed at the free end of the lifting cylinder. The embedded column is inserted into the through holes at both ends of the pressure plate. The free end of the lifting cylinder is in contact with the bottom surface of the pressure plate.

[0006] A measuring component for adjusting the pressure of the pressure plate is fixedly installed on the pressure plate, and the measuring component is connected to the host computer.

[0007] The measuring assembly includes a fixed cylinder vertically fixed on the pressure plate, a piston slidably disposed at the bottom opening of the fixed cylinder, a spring fixedly connected to the bottom end of the piston, and a pressure sensor fixedly connected to the top end of the spring. The pressure sensor is fixedly disposed at the inner top end of the fixed cylinder and is connected to a host computer via a wire. The bottom end of the piston is in contact with the upper surface of the base.

[0008] The outer side of the nut is vertically fixed to one end of the fixing rod, and the other end of the fixing rod is vertically fixed to the bottom end of the handle. The fixing rod and the upper surface of the base are spaced apart.

[0009] The base has guide posts fixed vertically at both ends, and the guide posts pass vertically through the pressure plate.

[0010] The bottom surface of the pressure plate is provided with a second V-shaped groove, and the first V-shaped groove and the second V-shaped groove are opposite each other vertically.

[0011] The pressure plate has an elongated hole at one position of the V-groove.

[0012] For any technical details not described in detail in this solution, please refer to the general understanding of those skilled in the art or the implementation of existing technology. The principle is that as long as the technical problems in this solution can be solved in a feasible manner, they will not be described in detail here.

[0013] This utility model achieves the following significant effects:

[0014] (1) Under the action of the lifting cylinder and nut, the pressure plate moves up and down, so that the pressure plate and the measuring rod can be pressed together. The measuring rod is locked by the upper and lower locking of V-groove 1 and V-groove 2, and finally the vertical positioning of the measuring rod is achieved.

[0015] (2) A measuring component is provided. By squeezing the piston, the piston moves upward and the spring squeezes the pressure sensor. The reading of the pressure sensor is displayed on the host computer through the wire to determine the pressure of the pressure plate on the measuring rod and avoid damaging the measuring rod.

[0016] (3) This solution is quick and convenient to clamp, and doubles the efficiency. When milling flat tables, it greatly reduces the labor intensity of workers and improves work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the inspection tooling in Embodiment 1 of this utility model.

[0018] Figure 2 This is the front view of the inspection fixture in Embodiment 1 of this utility model.

[0019] Figure 3 This is a schematic diagram of the measuring component in Embodiment 1 of this utility model.

[0020] Figure 4 This is a schematic diagram of the pressure plate in Embodiment 2 of this utility model.

[0021] Figure 5 This is a schematic diagram of the measuring rod in Embodiment 1 of this utility model.

[0022] The attached diagram is labeled as follows: 1. Base; 2. Measuring rod; 21. Flat platform; 3. Lifting cylinder; 4. Pressure plate; 41. Long hole; 5. Guide post; 6. Fixing cylinder; 7. Wire; 8. Threaded rod; 9. Nut; 10. Handle; 11. Fixing rod; 71. Pressure sensor; 72. Spring; 73. Piston. Detailed Implementation

[0023] To more clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0024] Example 1

[0025] See Figures 1-3 , Figure 5 A high-efficiency machining tooling fixture for chamfering gauge rods includes a base 1, a threaded rod 8 vertically fixed at the top of the base 1, a pressure plate 4 horizontally set at the top of the base 1, and a nut 9 sleeved on the threaded rod 8. The threaded rod 8 passes through the pressure plate 4. A V-groove is provided on the upper end face of the base 1. The nut 9 is set above the pressure plate 4. A measuring rod 2 is clamped in the V-groove.

[0026] It should be noted that a through hole is provided in the center of the pressure plate 4, and the threaded rod 8 passes vertically through the through hole. There is a gap between the outer diameter of the threaded rod 8 and the inner diameter of the through hole, which facilitates the up and down movement of the pressure plate 4.

[0027] Lifting cylinders 3 are fixedly installed at both ends of the pressure plate 4. An embedded column is coaxially fixed at the free end of the lifting cylinder 3. The embedded column is inserted into the through holes provided at both ends of the pressure plate 4. The free end of the lifting cylinder 3 is in contact with the bottom surface of the pressure plate 4. This contact connection is a separate movable connection.

[0028] A measuring component for adjusting the pressure of the pressure plate 4 is fixedly installed on the pressure plate 4, and the measuring component is connected to the host computer.

[0029] The measuring assembly includes a fixed cylinder 6 vertically fixed on the pressure plate 4, a piston 73 slidably disposed at the bottom opening of the fixed cylinder 6, a spring 72 fixedly connected to the bottom end of the piston 73, and a pressure sensor 71 fixedly connected to the top end of the spring 72. The pressure sensor 71 is fixedly disposed at the inner top end of the fixed cylinder 6 and is connected to the host computer through a wire 7. The bottom end of the piston 73 is in contact with the upper end surface of the base 1.

[0030] One end of the fixed cylinder 6 is open and facing downwards, while the other end is closed. The wire 7 passes through the closed end and connects to the host computer.

[0031] The outer side of the nut 9 is vertically fixed to one end of the fixing rod 11, and the other end of the fixing rod 11 is vertically fixed to the bottom end of the handle 10. A gap is provided between the fixing rod 11 and the upper surface of the base 1 to avoid excessive friction between the fixing rod 11 and the base 1.

[0032] Guide posts 5 are vertically fixed at both ends of the base 1. The guide posts 5 pass vertically through the pressure plate 4 and play a guiding role.

[0033] The bottom surface of the pressure plate 4 is provided with a second V-groove, and the first V-groove and the second V-groove are opposite each other.

[0034] The specific working process of this utility model is as follows:

[0035] When in use, place the measuring rod 2 into the V-groove 1 on the base 1, place the pressure plate 4 on top, then insert the threaded rod 8, and tighten it with the nut 9. This not only makes clamping convenient, but multiple V-grooves 1 can also fix and tighten multiple measuring rods 2 at the same time, significantly improving work efficiency.

[0036] Typically, before assembling the chamfered gauge, the measuring rod 2 is milled to form the flat platform 21. After the measuring rod 2 is machined, the overall structure is assembled. The flat platform 2 is a standard structure, which is hereby noted.

[0037] Specifically, the lifting cylinder 3 drives the pressure plate 4 to move downward, so that the pressure plate 4 and the measuring rod 2 come into contact and squeeze each other. By turning the nut 9 through the handle 10, the nut 9 can be rotated with effort-saving effect under the lever principle of the fixed rod 11. The measuring rod 2 is locked by the upper and lower locking of the V-groove 1 and V-groove 2, and finally the vertical positioning of the measuring rod 2 is achieved.

[0038] It should be noted that the downward movement of the pressure plate 4 is not driven by the lifting cylinder 3, but rather descends naturally under the action of gravity. The free end of the lifting cylinder 3 only contacts the bottom surface of the pressure plate 4, and is not directly connected, thus facilitating the rotation and descent of the nut 9. Otherwise, the nut 9 would inevitably exert force on the lifting cylinder 3 as it descends. After the free end of the lifting cylinder 3 descends, there is a gap between it and the bottom surface of the pressure plate 4, mainly to prevent the tightening force of the threads from being applied to the lifting cylinder 3. This is hereby explained.

[0039] Sometimes, if the thread force is not properly controlled, the measuring rod 2 may break easily. In this case, a measuring component is provided. By squeezing the piston 73, the piston 73 moves upward and squeezes the pressure sensor 71 through the spring 72. The reading of the pressure sensor 71 is displayed on the host computer through the wire 7 to determine the pressure of the pressure plate 4 on the measuring rod 2 and avoid damaging the measuring rod 2.

[0040] It should be noted that the reading of pressure sensor 71 is not the squeezing force of pressure plate 4 on probe 2. The two are positively correlated. For example, when probe 2 is pressed down and fixed in place, the reading of pressure sensor 71 is A. Then the reading A can be used as the basis for judging whether it has been pressed into place.

[0041] This solution offers quick and convenient clamping, doubling efficiency and significantly reducing the labor intensity of workers while milling flat surfaces, thereby improving work efficiency.

[0042] Example 2

[0043] See Figure 4 The pressure plate 4 has an elongated hole 41 at one position of the V-groove. Milling can be further performed at the elongated hole 41.

[0044] The technical features of this utility model not described can be implemented by or by using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A high-efficiency machining tooling fixture for chamfering gauge rods, comprising a base (1), characterized in that, The top of the base (1) is vertically fixed with a threaded rod (8), a pressure plate (4) is horizontally set at the top of the base (1), and a nut (9) is sleeved on the threaded rod (8). The threaded rod (8) passes through the pressure plate (4). The upper end face of the base (1) is provided with a V-groove. The nut (9) is set above the pressure plate (4). A measuring rod (2) is clamped in the V-groove.

2. The high-efficiency machining gauge rod for chamfering according to claim 1, characterized in that, Lifting cylinders (3) are fixedly installed at both ends of the pressure plate (4). An embedded column is fixed coaxially at the free end of the lifting cylinder (3). The embedded column is inserted into the through holes at both ends of the pressure plate (4). The free end of the lifting cylinder (3) is in contact with the bottom surface of the pressure plate (4).

3. The high-efficiency machining tooling for chamfered gauge rods according to claim 2, characterized in that, A measuring component for adjusting the pressure of the pressure plate (4) is fixedly installed on the pressure plate (4), and the measuring component is connected to the host computer.

4. The high-efficiency machining gauge rod for chamfering according to claim 3, characterized in that, The measuring assembly includes a fixed cylinder (6) vertically fixed on the pressure plate (4), a piston (73) slidably disposed at the bottom opening of the fixed cylinder (6), a spring (72) fixedly connected to the bottom end of the piston (73), and a pressure sensor (71) fixedly connected to the top end of the spring (72). The pressure sensor (71) is fixedly disposed at the inner top end of the fixed cylinder (6). The pressure sensor (71) is connected to the host computer through a wire (7). The bottom end of the piston (73) is in contact with the upper end surface of the base (1).

5. The high-efficiency machining tooling for chamfered gauge rods according to claim 3, characterized in that, The outer side of the nut (9) is vertically fixed to one end of the fixing rod (11), and the other end of the fixing rod (11) is vertically fixed to the bottom end of the handle (10). The fixing rod (11) and the upper surface of the base (1) are provided with a gap.

6. The high-efficiency machining gauge rod for chamfering according to claim 3, characterized in that, The base (1) has guide posts (5) fixed vertically at both ends, and the guide posts (5) pass vertically through the pressure plate (4).

7. The high-efficiency machining gauge rod for chamfering according to claim 3, characterized in that, The bottom surface of the pressure plate (4) is provided with a second V-shaped groove, and the first V-shaped groove and the second V-shaped groove are opposite each other.

8. The high-efficiency machining gauge rod for chamfering according to claim 3, characterized in that, The pressure plate (4) has an elongated hole (41) at one position of the V-groove.