Assembly tool for pointer type thermometer

Abstract

The utility model discloses an assembling tool of a pointer type thermometer, which relates to the technical field of pointer type thermometers and comprises a base, a stand column is arranged on the base, a mounting seat is detachably mounted on the stand column, a driving cylinder is arranged on the mounting seat, a punching rod is arranged at the output end of the driving cylinder, and a pressing head is arranged on the punching rod. A mold is arranged on the base and located below the pressure head, a mounting cavity is formed in the position, corresponding to the pressure head, of the mold, a supporting piece is arranged in the mounting cavity and comprises a supporting disc, a supporting table is arranged on the supporting disc, a supporting column is arranged on the supporting table, and the supporting column can be sleeved with the fixing ring; a positioning hole is formed in one corner, located in the mounting cavity, of the mold and is in insertion fit with a positioning column on the chassis; according to the utility model, manual work is replaced by the die and the supporting piece to fix the thermometer, the driving cylinder is utilized to drive the pressure head to complete the installation of the pointer on the pointer shaft, and the original manual assembly is changed into mechanical assembly, so that the assembly efficiency and quality are improved, and the problem that fingers are punctured by manual assembly is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pointer-type temperature gauges, in particular to an assembly tool for a pointer-type temperature gauge. Background Art

[0002] See attached Figure 1 and Figure 2 A pointer-type thermometer used on a water heater is disclosed. The thermometer mainly includes a shell, which is an arc-shaped curved surface structure. A chassis is arranged inside the shell, a positioning column is arranged at a corner of the chassis, a fixing ring is arranged on one side of the chassis, a mounting ring is arranged inside the fixing ring, a metal seat is mounted inside the mounting ring, and the metal seat is generally made of brass. A thermistor spring is arranged in the metal seat, one end of the thermistor spring is welded and fixed to the metal seat, and the other end is welded with a pointer shaft, and a pointer is mounted on the pointer shaft. When in use, when the thermistor spring senses the temperature, it rotates in the opposite direction under the action of thermal expansion and contraction, thereby driving the pointer to point to a high-temperature area. When the temperature drops, it rotates and contracts in the positive direction, and the pointer points to a low-temperature area.

[0003] At present, in the process of assembling the temperature gauge, the pointer is generally installed on the pointer shaft manually. Specifically, the worker fixes the housing with the pointer shaft with one hand, and puts the pointer on the pointer shaft with the other hand and presses the pointer downward to make it fit firmly on the pointer shaft. However, such installation mainly has the following problems:

[0004] During manual installation, since the pointer shaft is required to drive the pointer to rotate when the thermometer is working, the joint between the pointer shaft and the pointer needs to fit very tightly, otherwise the problem of slipping and inaccurate indication will occur. Therefore, it is necessary to press the pointer manually with great force. After working for a period of time, the decline in physical strength will affect the overall assembly efficiency and quality. When manually pressing, since the force area of ​​the pointer is relatively small, sometimes the pointer will slip off the pointer shaft when pressing the pointer, and then the finger will directly press on the pointer shaft, causing the pointer shaft to pierce the finger. Therefore, there is an urgent need for an assembly tool for a pointer thermometer, which is used to replace manpower to achieve mechanical assembly, improve the quality and efficiency of pointer assembly, and avoid the problem of the pointer shaft piercing the finger. Utility Model Content

[0005] In view of the above technical problems, the utility model provides an assembly tool for a pointer-type temperature gauge, which is used to solve the problem that the installation efficiency and quality cannot be guaranteed when the pointer is manually installed by manpower, and the pointer shaft may pierce the finger.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] An assembly tool for a pointer-type temperature gauge comprises a base, a column is arranged on the base, a mounting seat is detachably mounted on the column, a driving cylinder is arranged on the mounting seat, a punch is arranged at the output end of the driving cylinder, and a pressure head is arranged on the punch;

[0008] The base is provided with a mold below the pressure head, and the mold is provided with a mounting cavity at a position corresponding to the pressure head. A support member is provided in the mounting cavity, and the support member includes a support plate, a support platform is provided on the support plate, and a support column is provided on the support platform, and the support column can be sleeved in the fixing ring;

[0009] The mold is provided with a positioning hole at a corner of the installation cavity, and the positioning hole is plugged and matched with a positioning column on the chassis.

[0010] Furthermore, a side of the mold close to the pressure head is an arc surface, and the radius of the arc surface is equal to the radius of the shell.

[0011] Furthermore, a connecting pipe is threadedly connected to the punch rod, and the pressure head is installed in the connecting pipe.

[0012] Furthermore, a fixing hole is provided at the position of the pressure head in the connecting pipe, and a fixing bolt is provided in the fixing hole.

[0013] Furthermore, a guide hole is opened at one end of the mounting seat close to the column, a guide rod is arranged in the guide hole, a connecting piece is arranged at one end of the guide rod, and the other end of the connecting piece is connected to the punch rod, and the punch rod, the connecting piece and the guide rod move synchronously.

[0014] Furthermore, a guide sleeve is provided at the position of the guide hole of the mounting seat.

[0015] Furthermore, a fixing frame is fixedly provided on the base, and the mold is located in the fixing frame.

[0016] Furthermore, an adjusting threaded hole is respectively provided on the left and right sides of the fixing frame, and an adjusting bolt is provided in the adjusting threaded hole.

[0017] In summary, the beneficial technical effects of the utility model are:

[0018] (1) The support column on the support part is used to cooperate with the fixing ring on the thermometer, and the metal seat is abutted against the support column, thereby completing the positioning and support of the thermometer on the support part. At the same time, the entire support part is confined inside by the mounting cavity on the mold, thereby realizing the positioning of the support part on the mold, thereby replacing the manual hand-held thermometer. Then, the driving cylinder is used to drive the pressure head to press the pointer downward so that it is mounted on the pointer shaft, thereby replacing the original manual assembly, improving the quality and efficiency of the pointer assembly, and further avoiding the problem of pricking the finger when manually pressing the pointer.

[0019] (2) By designing one side of the mold as a curved surface, when positioning the temperature gauge, the curved surface can increase the fitting area between the mold and the shell, making the temperature gauge more stable when the pressure head presses the pointer.

[0020] (3) The use of a guide rod improves the stability of the pressure head during its downward movement and the accuracy of pressing the pointer.

[0021] (4) The mold can be detachably installed on the base by using a fixing frame and adjusting bolts. At the same time, the mold can be fixed and centered by using the adjusting bolts at the left and right ends of the fixing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of a pointer-type temperature gauge;

[0023] Figure 2 yes Figure 1 A schematic diagram of the structure from another angle;

[0024] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 4 yes Figure 3 A schematic diagram of the structure from another angle;

[0026] Figure 5 It is a schematic diagram of the structure of the mold;

[0027] Figure 6 It is a schematic diagram of the structure of the support;

[0028] Figure 7 It is a schematic diagram of the use of the utility model;

[0029] Figure 8 It is a schematic diagram of the matching relationship between the pointer-type temperature gauge and the supporting parts.

[0030] : Illustration numerals: 1. shell; 2. chassis; 3. fixing ring; 4. mounting ring; 5. metal seat; 6. pointer shaft; 7. pointer; 8. positioning column; 9. base; 10. column; 11. mounting seat; 12. drive cylinder; 13. punch rod; 14. connecting pipe; 15. pressure head; 16. fixing frame; 17. adjusting bolt; 18. mold; 19. mounting cavity; 20. positioning hole; 21. support member; 22. support plate; 23. support platform; 24. support column; 25. anti-rotation part; 26. guide rod; 27. guide sleeve; 28. connecting member; 29. ​​fixing bolt. DETAILED DESCRIPTION

[0031] The present invention will be described clearly and completely below in conjunction with the embodiments.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or it can be connected through an intermediate medium, or it can be a communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] See attached Figure 1-2 , shown is a pointer-type thermometer, which has a shell 1, and the shell 1 is an arc-shaped curved surface structure. A chassis 2 is provided inside the shell 1, and a positioning column 8 is provided at a corner of the chassis 2. A fixing ring 3 is provided on one side of the chassis 2, and a mounting ring 4 is provided inside the fixing ring 3. A metal seat 5 is sleeved inside the mounting ring 4. The metal seat 5 is generally made of brass. A thermal coil spring is provided in the metal seat 5. One end of the thermal coil spring is welded and fixed to the metal seat 5, and the other end is welded with a pointer shaft 6. A pointer 7 is installed on the pointer shaft 6. Now it is necessary to install the pointer 7 on the pointer shaft 6, so the following technical solution is proposed.

[0035] See attached Figure 3-6, shown is an assembly tool for a pointer-type temperature gauge, including a base 9, on which a bolt hole is opened. When in use, the entire tool is fixed on the workbench by the cooperation of the bolt hole and the bolt. One end of the base 9 is provided with a mounting sleeve, in which a column 10 is inserted, and a mounting seat 11 is installed on the column 10. The mounting seat 11 and the column 10 are detachably connected by bolts, and the height of the mounting seat 11 on the column 10 can also be adjusted. A driving cylinder 12 is bolted to the mounting seat 11, and the driving cylinder 12 can be one of an oil cylinder, an electric cylinder or a pneumatic cylinder. The output end of the driving cylinder 12 is a punch rod 13 with a thread, and the end of the punch rod 13 is threaded. A connecting tube 14 is connected, and a pressure head 15 is mounted on one end of the connecting tube 14 close to the base 9. At the same time, in order to facilitate the installation of the pressure head 15 on the connecting tube 14, a fixing bolt 29 is provided at the connecting tube 14 at the position of the pressure head 15. The fixing bolt 29 squeezes the pressure head 15 to achieve the installation of the pressure head 15 in the connecting tube 14. During installation, the driving cylinder 12 drives the pressure head 15 to press the pointer 7 downward to achieve the installation of the pointer 7 on the pointer 7 shaft 6, thereby replacing manual finger pressing, which not only improves the installation efficiency and quality, but also avoids the problem of unstable finger pressing causing the pointer 7 to slip on the pointer shaft 6 and the pointer shaft 6 piercing the finger;

[0036] At the same time, the base 9 is located below the pressure head 15 and is fixed with a fixing frame 16, and a mold 18 is arranged in the fixing frame 16. The mold 18 is located directly below the pressure head 15 and has an installation cavity 19. A support member 21 is arranged in the installation cavity 19. The support member 21 includes a support plate 22. The length and width of the support plate 22 are just accommodated in the installation cavity 19. A support platform 23 is arranged on the support plate 22. A support column 24 is arranged on the support platform 23. The diameter of the support column 24 is smaller than the inner diameter of the fixing ring 3. At the same time, a positioning hole 20 is arranged in a corner of the installation cavity 19 of the mold 18. The position of the positioning hole 20 just corresponds to the positioning column 8. When in use, the fixing ring 3 of the temperature gauge is sleeved on the support column 24, and the positioning column 8 is inserted into the positioning hole 20. At this time, one end of the metal seat 5 and the installation ring 4 just abuts against the support column 24 to support the entire temperature gauge. At the same time, the cooperation of the positioning hole 20 and the positioning column 8 plays a limiting role. In this way, the positioning and fixing of the temperature gauge is achieved by replacing manual hand support with the mold 18;

[0037] In addition, in order to improve the stability of the mold 18 when the temperature gauge is assembled, the side of the mold 18 close to the pressure head 15 is a curved surface, and its curvature is the same as that of the housing 1, thereby increasing the fitting area between the mold 18 and the housing 1, making the housing 1 fit more stably on the mold 18, and avoiding the problem of the housing 1 tilting forward or backward when being pressed by the pressure head 15;

[0038] As an assembly tool for a pointer 7-type temperature gauge, in order to improve the stability of the pressure head 15 when it moves downward and the precise effect on the pointer 7, a guide hole is opened at the end of the mounting seat 11 close to the column 10, and a guide sleeve 27 is provided on the guide hole. A guide rod 26 is passed through the mounting seat 11 through the guide hole and the guide sleeve 27. A connecting piece 28 is fixed to one end of the guide rod 26 by bolts, and the other end of the connecting piece 28 is sleeved on the punch rod 13, and is fixed to the punch rod 13 by bolts at both ends of the connecting piece 28. When the punch rod 13 moves up and down, the connecting piece 28 and the guide rod 26 move synchronously.

[0039] As an assembly tool for a pointer 7-type thermometer, adjustment threaded holes are opened on the left and right sides of the fixed frame 16, and adjustment bolts 17 are arranged in the adjustment threaded holes. The mold 18 in the fixed frame 16 can be clamped and fixed by the adjustment bolts 17, and the mold 18 can also be centered so that the support member 21 is located directly below the pressure head 15.

[0040] As an assembly tool for a pointer 7 type temperature gauge, in order to enable the pressure head 15 to play a certain protective role on the pointer 7 when pressing the pointer 7, the pressure head 15 is made of hard rubber, such as ABS material.

[0041] As an assembly tool for a pointer 7-type thermometer, in order to prevent the support member 21 from rotating in the installation cavity 19 during assembly and reduce the stability of the pressure head 15 when pressing, a stopper 25 is provided at one end of the support plate 22. After the support member 21 is placed in the installation cavity 19, the stopper 25 fits exactly against one side of the installation cavity 19.

[0042] Refer to the attached Figure 7-8 As shown, the mold 18 is first fixed by the adjusting bolts 17 on the fixing frame 16, and then the shell 1 equipped with the metal seat 5 is placed on the mold 18. When placing it, the positioning column 8 is matched with the positioning hole 20 to make it reach the point where the fixing ring 3 is just fitted on the support column 24. At this time, the metal seat 5 just abuts against the end of the support column 24 to form a supporting effect. At the same time, the mold 18 is tightly fitted with one side of the shell 1 through the arc surface. Then the pointer 7 is manually pre-placed on the pointer shaft 6, and then the driving cylinder 12 drives the pressure head 15 to press the pointer 7 downward, and finally the pointer 7 is installed on the pointer 7 shaft 6.

[0043] The above description is only a preferred specific implementation method of the present utility model, and does not limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An assembly tool for a pointer-type temperature gauge, comprising a base (9), characterized in that: The base (9) is provided with a column (10), a mounting seat (11) is detachably mounted on the column (10), a driving cylinder (12) is provided on the mounting seat (11), a punch rod (13) is provided at the output end of the driving cylinder (12), and a pressure head (15) is provided on the punch rod (13); The base (9) is provided with a mold (18) located below the pressure head (15); the mold (18) is provided with a mounting cavity (19) at a position corresponding to the pressure head (15); a support member (21) is provided in the mounting cavity (19); the support member (21) comprises a support plate (22); a support platform (23) is provided on the support plate (22); a support column (24) is provided on the support platform (23); the support column (24) can be sleeved in the fixing ring (3); The mold (18) is provided with a positioning hole (20) at a corner of the installation cavity (19), and the positioning hole (20) is plugged into and matched with a positioning column (8) on the chassis (2).

2. The assembly tool for a pointer-type temperature gauge according to claim 1, characterized in that: The side of the mold (18) close to the pressure head (15) is an arc surface, and the radius of the arc surface is equal to the radius of the shell (1).

3. The assembly tool for a pointer-type temperature gauge according to claim 1, characterized in that: The punch rod (13) is threadedly connected to a connecting pipe (14), and the pressure head (15) is installed in the connecting pipe (14).

4. The assembly tool for a pointer-type temperature gauge according to claim 3, characterized in that: The connection pipe (14) is provided with a fixing hole at the position of the pressure head (15), and a fixing bolt (29) is provided in the fixing hole.

5. The assembly tool for a pointer-type temperature gauge according to claim 1, characterized in that: A guide hole is formed at one end of the mounting seat (11) close to the column (10), a guide rod (26) is provided in the guide hole, a connecting piece (28) is provided at one end of the guide rod (26), and the other end of the connecting piece (28) is connected to the punch rod (13), and the punch rod (13), the connecting piece (28) and the guide rod (26) move synchronously.

6. The assembly tool for a pointer-type temperature gauge according to claim 1, characterized in that: The mounting seat (11) is provided with a guide sleeve (27) at the position of the guide hole.

7. The assembly tool for a pointer-type temperature gauge according to claim 1, characterized in that: A fixing frame is fixedly provided on the base (9), and the mold (18) is located inside the fixing frame (16).

8. The assembly tool for a pointer-type temperature gauge according to claim 7, characterized in that: An adjustment threaded hole is respectively provided on the left and right sides of the fixing frame (16), and an adjustment bolt (17) is provided in each of the adjustment threaded holes.

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