Spherical surface detecting and positioning tool for plastic shell of thermostat

Abstract

The utility model discloses a thermostat plastic shell spherical surface detecting and positioning tool, which belongs to the technical field of thermostat plastic shell positioning tools and comprises a base, a profiling structure and a limiting block, the profiling structure and the limiting block are mounted on the base, and the profiling structure is provided with a step structure matched with a multi-step hole in a thermostat plastic shell. The limiting block is located on one side of the profiling structure and used for abutting against the thermostat plastic shell. A clamping block is formed on one side of the profiling structure, and the width of the clamping block is matched with a notch in the plastic shell of the thermostat. According to the utility model, the plastic shell of the thermostat can be conveniently and stably positioned, so that the stability of product detection can be improved; meanwhile, a large amount of time for correction is not needed, the detection difficulty is reduced, the detection time is saved, and the working efficiency of personnel is greatly improved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of positioning tools for thermostat plastic shells, and specifically relates to a spherical surface detection and positioning tool for thermostat plastic shells. Background Art

[0002] During the production process of the thermostat, it is necessary to detect the spherical surface of its plastic shell to ensure that the spherical size and shape of the thermostat plastic shell meet the design requirements, and at the same time verify the machining accuracy of the shell spherical surface to ensure the sealing performance and reliability of the thermostat. The structure of the thermostat plastic shell is relatively complex, including multi-stage stepped holes, and an arc-shaped convex block is formed on the shell at the outer port of the multi-stage stepped holes. A notch is formed between the two ends of the arc-shaped convex block, as Figure 1 shown.

[0003] In the past, the positioning method for detecting the spherical surface of the thermostat plastic shell was to clamp and position it with a flat-jaw vice. Due to the irregularity of the product, this would lead to unstable product positioning, large measurement deviation, and a large amount of time spent on calibration when positioning the product. Therefore, it is necessary to design a spherical surface detection and positioning tool for the thermostat plastic shell that is convenient for stable positioning of the product. Summary of the Utility Model

[0004] The technical solution of the utility model aims at the technical problem of the overly single solution of the existing technology, and provides a solution significantly different from the existing technology. It mainly provides a spherical surface detection and positioning tool for the thermostat plastic shell to solve the technical problems of unstable positioning and long calibration time of the existing positioning means for the thermostat plastic shell mentioned in the above background art.

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

[0006] A spherical surface detection and positioning tool for a thermostat plastic shell, comprising a base and a profiling structure and a limiting block installed on the base. The profiling structure is provided with a stepped structure adapted to the multi-stage stepped holes on the thermostat plastic shell, and the limiting block is located on one side of the profiling structure and is used to abut against the thermostat plastic shell.

[0007] Further, a clamping block is formed on one side of the profiling structure, and the width of the clamping block is adapted to the notch on the thermostat plastic shell.

[0008] Further, the profiling structure includes a main spindle body, a first stepped shaft body, a second stepped shaft body, and a third stepped shaft body connected in sequence. The diameter of the main spindle body is equal to the inner hole diameter of the arc-shaped convex block on the thermostat plastic shell, and the clamping block is located on one side of the main spindle body.

[0009] Further, the diameter of the main spindle body is 19.7 mm, and the distance between the top of the clamping block and the top of the main spindle body is 10.8 mm; the diameter of the first stepped shaft body is 14.2 mm, and the height is 6.4 mm; the diameter of the second stepped shaft body is 8 mm, and the height is 10 mm; the diameter of the third stepped shaft body is 4.45 mm.

[0010] Further, the profiling structure is inclined, and the distance between the upper end of the profiling structure and the limiting block is less than the distance between the lower end of the profiling structure and the limiting block.

[0011] Further, a curved surface groove adapted to the surface of the thermostat plastic housing is formed on the upper part of the side of the limiting block facing the profiling structure.

[0012] Further, the limiting block is in an "L" shape, and a curved surface groove is formed at the top of its longitudinal part, and a strip-shaped fixing hole extending longitudinally is formed on its transverse part; a fixing blind hole for mounting and fixing the limiting block is formed on the base.

[0013] Further, a strip-shaped mounting groove communicating with one side surface is formed on the upper end surface of the base, a limiting portion adapted to be stuck in the strip-shaped mounting groove is formed at the bottom of the limiting block, and the fixing blind hole communicates with the strip-shaped mounting groove.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] By providing a base, a profiling structure and a limiting block, during application, through the matching effect of the stepped structure on the profiling structure and the multi-level stepped holes on the thermostat plastic housing, and in cooperation with the limiting effect of the limiting block, the stable positioning of the thermostat plastic housing can be carried out more conveniently, thereby improving the stability of product detection; at the same time, it is not necessary to spend a lot of time on calibration, the detection difficulty is also reduced, the detection time is saved, and the work efficiency of personnel is greatly improved.

[0016] In the optimized solution of the present utility model, a clamping block is provided on the profiling structure. During application, the clamping block can be inserted into the notch of the thermostat plastic housing, so that the position of the thermostat plastic housing placed on the profiling structure is determined and unique, and the accuracy and stability of product positioning can be further improved.

[0017] Hereinafter, the present utility model will be explained and described in detail in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a thermostat plastic housing;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the positioning tooling provided by the present utility model;

[0020] Figure 3 A longitudinal sectional view of the positioning tooling provided for the present utility model;

[0021] Figure 4 A longitudinal sectional view of the positioning tooling provided for the present utility model when positioning the thermostat plastic housing.

[0022] Reference numerals: 1, base; 11, strip-shaped mounting groove; 12, fixed blind hole; 2, profiling structure; 21, clamping block; 22, main spindle body; 23, first stepped shaft body; 24, second stepped shaft body; 25, third stepped shaft body; 3, limit block; 31, curved surface groove; 32, strip-shaped fixing hole; 4, thermostat plastic housing; 41, multi-stage stepped hole; 42, arc-shaped convex block; 43, notch. Specific embodiments

[0023] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant attached drawings. Several embodiments of the present utility model are given in the attached drawings. However, the present 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 disclosed content of the present utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as "fixedly provided on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] Embodiment 1: Please refer emphatically to Attached Figure 2 and Attached Figure 3 , a spherical surface detection and positioning tooling for a thermostat plastic housing, comprising:

[0027] A base 1, having a cuboid structure, with a strip-shaped mounting groove 11 communicating with one side of its upper end surface and a fixed blind hole 12 communicating with the strip-shaped mounting groove 11 opened at the bottom of the strip-shaped mounting groove 11;

[0028] The profiling structure 2 is installed on the base 1, and a stepped structure adapted to the multi-level stepped holes 41 on the thermostat plastic housing 4 is provided on the upper part of the profiling structure 2; specifically, the profiling structure 2 includes a main spindle body 22, a first stepped shaft body 23, a second stepped shaft body 24, and a third stepped shaft body 25 that are connected in sequence. The diameter of the main spindle body 22 is equal to the inner hole diameter of the arc-shaped convex block 42 on the thermostat plastic housing 4. A clamping block 21 is formed on one side of the main spindle body 22, and the width of the clamping block 21 is adapted to the notch 43 on the thermostat plastic housing 4. The diameter of the main spindle body 22 is 19.7 mm, and the distance between the top of the clamping block 21 and the top of the main spindle body 22 is 10.8 mm; the diameter of the first stepped shaft body 23 is 14.2 mm, and the height is 6.4 mm; the diameter of the second stepped shaft body 24 is 8 mm, and the height is 10 mm; the diameter of the third stepped shaft body 25 is 4.45 mm, and the height is 13.8 mm.

[0029] The limiting block 3 is installed on the base 1 and is located on one side of the profiling structure 2 for abutting against the thermostat plastic housing 4.

[0030] Materials of the tooling: The material is aluminum, and a hardening coating is applied to the outer surface. The use of aluminum material can ensure the stability of the tooling in a constant temperature and humidity environment and basically solve the problem of rust and corrosion; at the same time, hardening treatment is carried out on the outer surface to reduce the impact damage during the turnover process or use process of the tooling.

[0031] During measurement, the multi-level stepped holes 41 of the thermostat plastic housing 4 are placed on the profiling structure 2, and the arc-shaped convex block 42 is sleeved on the main spindle body 22, and the clamping block 21 is clamped into the notch 43. At the same time, the limiting block 3 abuts against the thermostat plastic housing 4 to prevent the product from shifting or shaking, improving the stability and consistency of the measurement.

[0032] Embodiment 2: The difference between this embodiment and Embodiment 1 is as follows:

[0033] In this embodiment, please refer to Appendix Figure 2 and Appendix Figure 3 , the profiling structure 2 is inclined, and the distance between the upper end of the profiling structure 2 and the limiting block 3 is less than the distance between the lower end of the profiling structure 2 and the limiting block 3. This can facilitate the installation of the thermostat plastic housing 4 more conveniently. The profiling structure 2 is detachably installed on the base 1, and the profiling structure 2 and the base 1 are fixed by screws.

[0034] A curved surface groove 31 adapted to the surface of the thermostat plastic housing 4 is formed on the upper part of the side of the limiting block 3 facing the profiling structure 2 to better support and limit the inclined thermostat plastic housing 4.

[0035] The limiting block 3 is in a horizontally placed "L" shape. A curved surface groove 31 is formed in its longitudinal part, and a longitudinally extending strip-shaped fixing hole 32 is formed in its transverse part. A fixing blind hole 12 for installing and fixing the limiting block 3 is formed in the base 1. The fixing blind hole 12 is a threaded hole to achieve the detachable installation of the limiting block 3. During installation, a bolt is passed through the strip-shaped fixing hole 32 and screwed into the fixing blind hole 12 to complete the installation of the limiting block 3.

[0036] Others are the same as in Embodiment 1.

[0037] During measurement, please refer to the appendix Figure 4 , place the multi-stage stepped hole 41 of the thermostat plastic housing 4 on the profiling structure 2, and make the arc-shaped convex block 42 sleeved on the main spindle body 22, and the clamping block 21 is clamped into the notch 43. At the same time, the curved surface groove 31 of the limiting block 3 abuts and supports the thermostat plastic housing 4 to prevent the product from shifting or shaking, improving the stability and consistency of the measurement.

[0038] Embodiment 3: The difference between this embodiment and Embodiment 2 is that:

[0039] In this embodiment, a strip-shaped installation groove 11 communicating with one side surface is formed on the upper end surface of the base 1. A limiting portion adapted to be clamped in the strip-shaped installation groove 11 is formed at the bottom of the limiting block 3, and the fixing blind hole 12 communicates with the strip-shaped installation groove 11. When installing the limiting block 3, first slide the limiting portion of the limiting block 3 into the strip-shaped installation groove 11 from one side, thereby initially positioning the installation position of the limiting block 3, which is beneficial for the positioning installation of the limiting block 3, can also reduce the processing difficulty and save the processing cost. In addition, corresponding adjustments can be made when the product shakes.

[0040] Others are the same as in Embodiment 2.

[0041] The above has made an exemplary description of the present invention in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A thermostat plastic housing spherical surface detection and positioning tooling, characterized in that: It includes a base (1), a profiling structure (2) and a limiting block (3) mounted on the base (1). The profiling structure (2) is provided with a stepped structure adapted to the multi-stage stepped holes (41) on the thermostat plastic housing (4). The limiting block (3) is located on one side of the profiling structure (2) and is used to abut against the thermostat plastic housing (4).

2. A thermostat plastic housing spherical surface detection and positioning tooling according to claim 1, characterized in that: A clamping block (21) is formed on one side of the profiling structure (2), and the width of the clamping block (21) is adapted to the notch (43) on the thermostat plastic housing (4).

3. The spherical surface detection and positioning tooling for the thermostat plastic housing according to claim 2, characterized in that: The profiling structure (2) includes a main spindle body (22), a first stepped shaft body (23), a second stepped shaft body (24) and a third stepped shaft body (25) connected in sequence. The diameter of the main spindle body (22) is equal to the inner hole diameter of the arc-shaped convex block (42) on the thermostat plastic housing (4). The clamping block (21) is located on one side of the main spindle body (22).

4. A thermostat plastic housing spherical surface detection and positioning tooling according to claim 3, characterized in that: The diameter of the main spindle body (22) is 19.7 mm, and the distance between the top of the clamping block (21) and the top of the main spindle body (22) is 10.8 mm; the diameter of the first stepped shaft body (23) is 14.2 mm and the height is 6.4 mm; the diameter of the second stepped shaft body (24) is 8 mm and the height is 10 mm; the diameter of the third stepped shaft body (25) is 4.45 mm.

5. A thermostat plastic housing spherical surface detection and positioning tooling according to claim 1, characterized in that: The profiling structure (2) is inclined, and the distance between the upper end of the profiling structure (2) and the limiting block (3) is less than the distance between the lower end of the profiling structure (2) and the limiting block (3).

6. A thermostat plastic housing spherical surface detection and positioning tooling according to claim 1, characterized in that: On the upper part of the side of the limiting block (3) facing the profiling structure (2), a curved surface groove (31) adapted to the surface of the thermostat plastic housing (4) is formed.

7. A thermostat plastic housing spherical surface detection and positioning tooling according to claim 1, characterized in that: The limiting block (3) is in an "L" shape, and a curved surface groove (31) is formed at the top of its longitudinal part, and a longitudinally extending strip-shaped fixing hole (32) is formed on its transverse part; a fixing blind hole (12) for installing and fixing the limiting block (3) is formed on the base (1).

8. A thermostat plastic housing spherical surface detection and positioning tooling according to claim 7, characterized in that: A strip-shaped installation groove (11) communicating with one side surface is formed on the upper end surface of the base (1). A limiting part adapted to be stuck in the strip-shaped installation groove (11) is formed at the bottom of the limiting block (3), and the fixing blind hole (12) communicates with the strip-shaped installation groove (11).

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