A conical telescopic positioning mechanism for a testing fixture

Abstract

This utility model discloses a conical telescopic positioning mechanism for a gauge, comprising a support base, a mounting arm, and two fixed seats. The two fixed seats are L-shaped and spaced apart on the side end face of the support base. A transmission rod slides between the two fixed seats, and a sliding block is connected to the bottom of the transmission rod. A guide rod is provided between the sliding block and its adjacent fixed seat, and a rope sleeve is installed at the bottom of the sliding block. A steel wire rope passes through the rope sleeve, and the end of the steel wire rope is connected to a fixed seat near the sliding block. A clamping rod with a pre-positioning pin is installed at the top of the guide rod. The mounting arm is installed at the top of the support base, and a positioning pin is installed at the end of the mounting arm. This utility model utilizes the tightening of the steel wire rope to drive the rope sleeve, pushing the sliding block on the guide rod, thereby causing the transmission rod on the sliding block to move upward. This causes the pre-positioning pin on the clamping rod to move closer to the mounting arm, allowing the positioning pin and the pre-positioning pin to engage, achieving rapid positioning of the part for quick measurement.

Description

Technical Field

[0001] This utility model relates to the field of inspection of automotive manufacturing fixtures, and more specifically, to a conical telescopic positioning mechanism for fixtures. Background Technology

[0002] In practical work, it is often necessary to weld nuts to the locating holes required by the part drawings. The surface where the locating holes are located (locating surface) is on the upper surface of the part, making it inconvenient to pre-embed pin sleeves and install clamps during fixture fabrication. Figure 1 As shown.

[0003] This results in its inability to quickly locate the parts to be inspected on the fixture, affecting its efficiency.

[0004] Therefore, it is necessary to propose a conical telescopic positioning mechanism for the inspection fixture to facilitate loading and unloading of parts, simplify the structure, and obtain accurate measurement results. Utility Model Content

[0005] This utility model provides a conical telescopic positioning mechanism for a gauge to solve the problem that it is inconvenient to pre-embed pin sleeves to install clamps during the manufacturing of existing gauges, which leads to the inability to quickly position and inspect parts and affects the measurement effect.

[0006] According to one aspect of the present invention, a tapered telescopic positioning mechanism for a gauge is provided, comprising a support base, a mounting arm, and two fixed seats. The two fixed seats are L-shaped and spaced apart on the side end faces of the support base. A transmission rod is slidably passed between the two fixed seats. A sliding block is connected to the bottom of the transmission rod. A guide rod is provided between the sliding block and its adjacent fixed seat. A rope outer tube is installed at the bottom of the sliding block, and a steel wire rope is passed through the rope outer tube. The end of the steel wire rope is connected to a fixed seat near the side of the sliding block. A clamping rod with a pre-positioning pin is installed at the top of the guide rod. A mounting arm is installed at the top of the support base, and a positioning pin is installed at the end of the mounting arm.

[0007] Based on the above scheme, the preferred option is that the positioning pin is conical.

[0008] Based on the above scheme, the mounting arm is preferably provided with an elongated waist hole, the outer circle of the positioning pin is provided with a through shaft that passes through the elongated waist hole, and a limiting block is installed on the through shaft.

[0009] Based on the above-mentioned solution, a protective cover is preferably installed on the top of the mounting arm, and a spring is fixed to the top of the positioning pin, with the top of the spring pressing against the inner edge of the protective cover.

[0010] Preferably, based on the above scheme, the guide rod is two parallel rods spaced apart, and the guide rod is provided with a limiting edge after passing through the fixed seat on the side away from the mounting arm.

[0011] This utility model discloses a conical telescopic positioning mechanism for a gauge. By tightening a steel wire rope, the outer sleeve of the rope pushes a sliding block to move on a guide rod, thereby causing the transmission rod on the sliding block to move upward. This causes the pre-positioning pin on the clamping rod to move closer to the mounting arm, so that the positioning pin and the pre-positioning pin cooperate to achieve rapid positioning of the part and quickly realize its measurement.

[0012] Compared with the prior art, the present invention provides a conical telescopic positioning mechanism for a gauge, which makes the gauge design conform to the customer's drawing requirements, has a simple mechanism, is easy to operate, and can quickly position the inspection parts on the gauge. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0014] Figure 1 This is a schematic diagram of the positioning hole welding nut of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the cone-shaped telescopic positioning mechanism of the inspection tool of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the mounting arm of this utility model;

[0017] Figure 4 This is a partial sectional view of the mounting arm of this utility model;

[0018] Explanation of icon numbers:

[0019] 1. Mounting arm; 11. Positioning pin; 12. Through-shaft; 13. Limiting block; 14. Protective cover; 15. Spring;

[0020] 2. Support base; 21. Fixed base; 22. Transmission rod; 23. Sliding block; 24. Guide rod; 29. ​​Rope outer tube; 25. Steel wire rope; 26. Pre-positioning pin; 27. Clamping rod; 28. Limiting edge. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0022] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0023] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0024] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0025] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0028] Please see Figure 4 and combined Figure 2 and Figure 3As shown, a conical telescopic positioning mechanism for a gauge according to the present invention includes a support base 2, a mounting arm 1, and two fixed bases 21. The two fixed bases 21 are L-shaped and spaced apart on the side end face of the support base 2. A transmission rod 22 is slidably passed through the two fixed bases 21. A sliding block 23 is connected to the bottom of the transmission rod 22. A guide rod 24 is provided between the sliding block 23 and its adjacent fixed base 21. A rope outer tube 29 is installed at the bottom of the sliding block 23. A steel wire rope 25 is passed through the rope outer tube 29. The end of the steel wire rope 25 is fixedly connected to the fixed base 21 on the side near the sliding block 23.

[0029] The top of the guide rod 24 is equipped with a clamping rod 27 with a pre-positioning pin 26; the top of the support base 2 is equipped with an mounting arm 1, and the end of the mounting arm 1 is equipped with a positioning pin 11, which is tapered.

[0030] During use, the part positioning hole (welded nut) is inserted into the pre-positioning pin 26 for pre-positioning. Pulling the wire rope 25 causes it to retract, pushing the sliding block 23 upwards via the outer sheath 23. Since the transmission rod 22 is fixed to the sliding block 23, it moves upwards, causing the clamping rod 27 to move towards the mounting arm 1. The clamping rod 27 presses the positioning surface of the part to be measured until it is in contact with the zero-contact surface of the gauge. At this point, the positioning pin 11 is inserted into the part positioning hole (welded nut). Once the positioning pin 11 (conical) has positioned the part, measurement begins. After measurement, the wire rope 25 is released via the switch to remove the part.

[0031] To facilitate observation of the positioning degree, this utility model has an elongated waist hole on the mounting arm 1, and a through shaft 12 that passes through the elongated waist hole is provided on the outer circle of the positioning pin 11. A limiting block 13 is installed on the through shaft 12. In use, by observing that the limiting block 13 reaches the bottom / determined position, it can be determined whether the positioning pin 11 (conical) has positioned the part.

[0032] Preferably, the present invention has a protective cover 14 installed on the top of the mounting arm 1, and a spring 15 fixed on the top of the positioning pin 11, with the top of the spring 15 pressing against the inner edge of the protective cover 14.

[0033] To ensure the smooth movement of the clamping rod 27, the present invention has two guide rods 24, which are arranged in parallel with a gap between them. The guide rods 24 are provided with a limiting edge 28 after passing through the fixed seat 21 on the side away from the mounting arm 1.

[0034] The present invention discloses a conical telescopic positioning mechanism for a gauge. By tightening the wire rope 25, the outer sleeve of the rope pushes the sliding block 23 to move on the guide rod 24, thereby driving the transmission rod 22 on the sliding block 23 to move upward. This causes the pre-positioning pin 26 on the clamping rod 27 to move closer to the mounting arm 1, so that the positioning pin 11 and the pre-positioning pin 26 cooperate to achieve rapid positioning of the part and quickly realize its measurement.

[0035] Compared with the prior art, the present invention provides a conical telescopic positioning mechanism for a gauge, which makes the gauge design conform to the customer's drawing requirements, has a simple mechanism, is easy to operate, and can quickly position the inspection parts on the gauge.

[0036] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A conical telescopic positioning mechanism for a gauge, characterized in that, The device includes a support base, a mounting arm, and two fixed seats. The two fixed seats are L-shaped and spaced apart on the side end face of the support base. A transmission rod slides between the two fixed seats. A sliding block is connected to the bottom of the transmission rod. A guide rod is provided between the sliding block and its adjacent fixed seat. A rope outer tube is installed at the bottom of the sliding block, and a steel wire rope is threaded through the rope outer tube. The end of the steel wire rope is connected to a fixed seat near the sliding block. A clamping rod with a pre-positioning pin is installed at the top of the guide rod. A mounting arm is installed at the top of the support base, and a positioning pin is installed at the end of the mounting arm.

2. The gauge conical telescopic positioning mechanism as described in claim 1, characterized in that, The locating pin is tapered.

3. The gauge conical telescopic positioning mechanism as described in claim 1, characterized in that, The mounting arm is provided with an elongated waist hole, and the outer circle of the positioning pin is provided with a through shaft that passes through the elongated waist hole, and a limiting block is installed on the through shaft.

4. The gauge conical telescopic positioning mechanism as described in claim 3, characterized in that, A protective cover is installed on the top of the mounting arm, and a spring is fixed to the top of the positioning pin. The top of the spring presses against the inner edge of the protective cover.

5. The gauge conical telescopic positioning mechanism as described in claim 1, characterized in that, The guide rod consists of two parallel rods spaced apart, and the guide rods are provided with a limiting edge after passing through the fixed seat on the side away from the mounting arm.

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