A clamp-free go-no-go detection device for position tolerance of a thermoregulator nozzle

Abstract

The utility model discloses a temperature regulator pipe orifice position degree no clamping type pass -stop detection equipment, including bottom plate, the top of bottom plate is equipped with reference bushing, first reference block, second reference block, third reference block, fourth reference block, fifth reference block and position degree detection subassembly, all be equipped with pass -stop gauge on third reference block, fourth reference block and fifth reference block, position degree detection subassembly contain mounting bracket, the side wall of mounting bracket is provided with pneumatic push -rod, the end of pneumatic push -rod is connected with ring gauge, the utility model discloses adopt base to fit reference block, the positioning mode of hole site cover reference pin, avoid the deformation of pipe orifice due to too big clamping force, ensure that the real measurement reference, based on pneumatic push -rod drive special ring gauge and carry out position degree detection, if ring gauge can not push to the bottom initially, can re -measure after manual trace adjustment workpiece posture, avoid the misjudgment caused by slight clamping deviation, reduce the misjudgment rate of qualified product, realize position degree nondestructive testing.

Description

Technical Field

[0001] This utility model mainly relates to the field of thermostat nozzle position detection technology, specifically a thermostat nozzle position detection device without clamping for pass / stop testing. Background Technology

[0002] In modern industrial production, thermostats, as key components for temperature control, are widely used in automobiles, home appliances, industrial equipment and other fields. The position of the thermostat port directly affects its sealing performance, fluid transmission efficiency and assembly accuracy with other components. It is an important indicator that determines the quality and reliability of thermostat products. Therefore, accurate detection of the position of the thermostat port has become an indispensable and important part of the production process.

[0003] Currently, the positional accuracy of thermostat nozzles is mostly tested using traditional rigid locating pins and hydraulic clamping equipment. This type of equipment uses rigid locating pins to determine the workpiece position, then applies a clamping force (typically >200N) using a hydraulic system to fix the thermostat. Inspection is then completed using tools such as go / no-go gauges. However, this method has drawbacks: First, excessive hydraulic clamping force can easily deform the nozzles of thin-walled thermostats. Actual production data shows that nozzle deformation is generally between 0.05-0.12mm, which not only alters the original nozzle dimensions but also distorts the measurement reference, making the test results unable to accurately reflect product quality. Second, once the workpiece is rigidly clamped, it cannot be dynamically adjusted or compensated for according to actual conditions during the inspection process. This makes it unable to adapt to the unavoidable minor dimensional deviations and positional shifts that occur during the thermostat's manufacturing process, severely affecting the accuracy and reliability of the inspection. Utility Model Content

[0004] This utility model provides a solution that addresses the problem of overly simplistic existing technical solutions. It offers a significantly different approach, primarily providing a non-clamping-type go / stop detection device for the position of thermostat nozzles. This addresses the technical problems mentioned in the background section, where excessive hydraulic clamping force in traditional detection devices causes deformation of thin-walled thermostat nozzles, leading to dimensional changes, distorted measurement benchmarks, and inaccurate detection results. Furthermore, rigid clamping cannot dynamically adjust to compensate for minor deviations in workpiece manufacturing, thus affecting the accuracy and reliability of the detection.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A non-clamping go / no-go detection device for the position of a thermostat nozzle includes a base plate. The top of the base plate is provided with a reference sleeve, a first reference block, a second reference block, a third reference block, a fourth reference block, a fifth reference block, and a position detection component. The third reference block, the fourth reference block, and the fifth reference block are all equipped with go / no-go gauges.

[0007] The position detection component includes a mounting bracket, and a pneumatic push rod is provided through the side wall of the mounting bracket. A ring gauge is connected to the end of the pneumatic push rod.

[0008] Preferably, the base plate is integrally formed from high-strength aluminum alloy, and anti-slip feet are symmetrically arranged at the four corners of its bottom to form a stable support structure.

[0009] More preferably, the bottom plate has handles installed on both sides of the top with screws, and the handles are made of aluminum alloy.

[0010] More preferably, three reference sleeves are provided, and each is installed at a corner of the top of the base plate. The reference sleeves are made of wear-resistant material and are treated with rust prevention.

[0011] More preferably, both the first and second reference blocks are provided with reference pins, and the first, second, third, fourth, and fifth reference blocks and reference pins are all made of wear-resistant materials.

[0012] More preferably, a total of five position detection components are provided, and the mounting brackets of each component are designed differently in terms of height and shape based on different detection requirements.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This testing equipment uses a positioning method where the base is attached to the reference block and the reference pin is inserted into the hole, which avoids tube deformation caused by excessive clamping force (typical value > 200N) (the deformation measured by traditional methods is 0.05-0.12mm), ensuring the authenticity of the measurement reference. When performing positional testing based on a specially designed ring gauge driven by a pneumatic push rod, if the ring gauge cannot be pushed to the bottom on the first attempt, it supports manual micro-adjustment of the workpiece posture and retesting, avoiding misjudgment caused by slight clamping offset, reducing the false detection rate of qualified products, and achieving reliable non-destructive testing of positional accuracy.

[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a top view of the structure of this utility model;

[0017] Figure 2 This is a front view structural diagram of the present invention;

[0018] Figure 3 This is a side view of the structure of this utility model;

[0019] Figure 4This is an enlarged structural schematic diagram of the position detection component of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the workpiece being inspected.

[0021] Numbering on the map:

[0022] 1. Base plate; 2. Reference sleeve; 3. Handle; 41. First reference block; 42. Second reference block; 43. Third reference block; 44. Fourth reference block; 45. Fifth reference block; 5. Go / no-go gauge; 6. Position detection assembly; 601. Mounting bracket; 602. Pneumatic push rod; 603. Ring gauge. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Please refer to the appendix carefully. Figure 1-5 A non-clamping go / no-go detection device for the position of a thermostat nozzle includes a base plate 1. The top of the base plate 1 is provided with a reference sleeve 2, a first reference block 41, a second reference block 42, a third reference block 43, a fourth reference block 44, a fifth reference block 45, and a position detection component 6. The third reference block 43, the fourth reference block 44, and the fifth reference block 45 are all equipped with go / no-go gauges 5, which are used to quickly detect the size of the aperture.

[0026] The position detection component 6 includes a mounting bracket 601 mounted on the base plate 1. A pneumatic push rod 602 is provided through the side wall of the mounting bracket 601, and a ring gauge 603 is connected to the end of the pneumatic push rod 602.

[0027] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the base plate 1 is integrally formed from high-strength aluminum alloy, which combines lightweight and sturdy characteristics, effectively reducing weight and enhancing structural strength. Anti-slip feet are symmetrically arranged at the four corners of its bottom, which can increase friction, build a stable support structure, prevent sliding and tipping, and ensure stable use of the equipment.

[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, handles 3 are installed on both sides of the top of the base plate 1 by screws. The handles 3 are made of aluminum alloy. The aluminum alloy handles 3 are sturdy and durable, not easy to break or deform. The screw installation method makes it easy to disassemble and replace, and convenient to maintain. At the same time, it improves the convenience and flexibility of equipment handling, and is suitable for scenarios that require mobile equipment.

[0029] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, three reference sleeves 2 are provided and installed at the corners of the top of the base plate 1. The reference sleeves 2 are made of wear-resistant material and are treated with rust prevention. The wear-resistant material ensures that the reference sleeves 2 are not easily worn during long-term use and maintain high-precision positioning performance. The rust prevention treatment effectively resists the influence of humid and corrosive environments and extends service life. The three reference sleeves 2 facilitate the acceptance of the inspection equipment and third-party testing (for establishing a reference coordinate system of the three coordinate measuring machine).

[0030] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, reference pins are provided on the first reference block 41 and the second reference block 42. The first reference block 41, the second reference block 42, the third reference block 43, the fourth reference block 44, the fifth reference block 45 and the reference pins are all made of wear-resistant materials, which improves the durability and reliability of the overall structure. The wear-resistant material can significantly reduce the wear of the reference blocks and reference pins in frequent use and high-precision positioning operations, maintain accurate positioning accuracy for a long time, and reduce errors caused by component wear. In addition, the flatness accuracy requirements of the reference blocks are extremely strict. Their surfaces need to reach the micron-level flatness standard and are mainly used to support precision parts.

[0031] In this embodiment, as Figure 1 and Figure 4 As shown, there are five position detection components 6 in total, and the mounting brackets 601 of each component are designed differently in height and shape based on different detection requirements. The mounting brackets 601 can be L-shaped or straight, and the height and shape can be customized according to different detection requirements to meet the detection requirements of workpieces of different sizes. The structure and function of the ring gauge 603 and the pneumatic push rod 602 are to quickly detect the position (the size of the ring gauge 603 is calculated through the position tolerance zone), which is similar to the GO / NOGO mode. If the position of the workpiece is not qualified, the pneumatic push rod 602 cannot be pushed to the bottom.

[0032] It should be noted that the multiple pneumatic push rods 602 and their supporting pneumatic control systems used in this utility model adopt mature technical solutions commonly used in the industry. Their specific structures and working principles are well known to those skilled in the art, so they will not be described in detail in this utility model document.

[0033] The specific operating procedure of this utility is as follows: Place the workpiece to be tested in the equipment, and make its base fit against the reference block of the equipment to achieve initial positioning. At the same time, put the A hole and B hole of the workpiece into the reference pins on the first reference block 41 and the second reference block 42 of the equipment respectively to complete the assembly of the workpiece and the equipment.

[0034] Subsequently, the go / no-go gauges 5 on the third reference block 43, the fourth reference block 44 and the fifth reference block 45 are used to check whether the corresponding hole diameter is qualified. If the hole diameter is qualified, the pneumatic push rods 602 of the five position detection components 6 are then driven to move the specially made ring gauges 603, which are pre-calculated and manufactured according to the tolerance zone and physical compensation value of the hole being measured.

[0035] If ring gauge 603 can be pushed to the bottom smoothly, it indicates that the positional accuracy meets the requirements. If it cannot be pushed to the bottom, it means that the positional accuracy may be out of tolerance. In this case, since the workpiece is not fully clamped in the equipment, a small adjustment is allowed (since it is not a clamping measurement, the part can be fine-tuned in the equipment). The position of the workpiece can be slightly adjusted and then ring gauge 603 can be pushed again for retesting. If ring gauge 603 still cannot reach the bottom position after fine adjustment, the workpiece is finally determined to be a defective product.

[0036] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A non-clamping type go / stop detection device for the position of a thermostat nozzle, comprising a base plate (1), characterized in that: The top of the base plate (1) is provided with a reference sleeve (2), a first reference block (41), a second reference block (42), a third reference block (43), a fourth reference block (44), a fifth reference block (45) and a position detection component (6). The third reference block (43), the fourth reference block (44) and the fifth reference block (45) are all equipped with go and no-go gauges (5). The position detection component (6) includes a mounting bracket (601), and a pneumatic push rod (602) is provided through the side wall of the mounting bracket (601). A ring gauge (603) is connected to the end of the pneumatic push rod (602).

2. The thermostat inlet position detection device without clamping for continuity testing according to claim 1, characterized in that: The base plate (1) is integrally formed from high-strength aluminum alloy material, and anti-slip feet are symmetrically arranged at the four corners of its bottom to form a stable support structure.

3. The thermostat inlet position detection device without clamping for continuity testing according to claim 1, characterized in that: The bottom plate (1) has handles (3) installed on both sides of the top with screws, and the handles (3) are made of aluminum alloy.

4. The thermostat inlet position detection device without clamping for continuity testing according to claim 1, characterized in that: Three reference sleeves (2) are provided and are respectively installed at the corners of the top of the base plate (1). The reference sleeves (2) are made of wear-resistant material and are treated with rust prevention.

5. The thermostat inlet position detection device without clamping for continuity testing according to claim 1, characterized in that: The first reference block (41) and the second reference block (42) are each provided with a reference pin, and the first reference block (41), the second reference block (42), the third reference block (43), the fourth reference block (44), the fifth reference block (45) and the reference pin are all made of wear-resistant material.

6. The thermostat inlet position detection device without clamping for continuity testing according to claim 1, characterized in that: The position detection components (6) are provided in five parts, and the mounting brackets (601) of each component are designed differently in height and shape based on different detection requirements.

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