Thermocouple groove milling jig
By designing a milling fixture for thermocouple grooves, and utilizing a combination of mounting blocks, connecting blocks, and pressing components, the problem of poor length adaptability of thermocouple fixtures in groove milling operations was solved, achieving stable pressing of thermocouples of different lengths and improving operational smoothness and efficiency.
Patent Information
- Application Number
- CN202520413419.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing thermocouple fixtures are difficult to adapt to thermocouples of different lengths during milling operations, resulting in frequent adjustments to the pressing position and affecting the smoothness of operation.
A milling fixture for thermocouple slots was designed, comprising mounting blocks, connecting blocks, pressing components, and locking bolts. The fixture achieves stable pressing of thermocouples of different lengths through positioning through holes and locking bolts, ensuring smooth milling operations.
Stable pressing of thermocouples of different lengths was achieved, improving the smoothness and efficiency of milling operations.
Smart Images

Figure CN223820099U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of milling thermocouple technology, specifically to a milling thermocouple groove fixture. Background Technology
[0002] A thermocouple is a sensor used for temperature measurement. It is mainly composed of two conductors of different metals or alloys that form a circuit at their junction. When the junction is subjected to temperature changes, a voltage is generated. The voltage is proportional to the temperature difference at the junction, so the temperature can be determined by measuring the voltage. In the production and processing of thermocouples, a milling operation is required.
[0003] A fixture for fixing a ceramic measuring head of a thermocouple (authorization announcement number: CN117309172A) has the following defects: The fixture avoids damage to the ceramic measuring head, improves the service life of the external temperature measuring thermocouple, and ensures normal production. However, during the milling operation of the thermocouple, it is necessary to perform a certain pressing and limiting operation on the thermocouple body to prevent displacement of the thermocouple during the milling process. However, when the length of the thermocouple is not uniform, it is necessary to adjust the pressing position of the thermocouple to ensure smooth operation. Therefore, this utility model is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a milling fixture for thermocouple slots to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a milling fixture for thermocouple grooves, comprising an installation block, a connecting block fixed to the front of the installation block, the top surface of the connecting block being lower than the installation block, a plurality of positioning through holes evenly spaced on the installation block, a pressing component on the installation block, the pressing component comprising a first pressing block disposed above the installation block, a second pressing block disposed on one side of the first pressing block, a pad disposed at the bottom of the first pressing block and the second pressing block, a locking bolt being locked on the first pressing block and the second pressing block, and a thermocouple being placed on the connecting block.
[0006] Preferably, a milling cutter body is provided on the outside of the thermocouple body, and the milling cutter body is used to perform horizontal milling groove operation on the thermocouple body.
[0007] Preferably, the mounting strip and the connecting strip are fixed as one piece, the thermocouple body contacts the front side of the mounting strip and the top side of the connecting strip, and a retaining ring is fixed at the end of the thermocouple body, the retaining ring contacting and limiting the position with the side of the mounting strip and the connecting strip.
[0008] Preferably, the first pressing block has a first through hole, and the second pressing block has a second through hole, the first through hole and the second through hole being adapted to the positioning through hole.
[0009] Preferably, the pad has a third through hole, which is adapted to the positioning through hole.
[0010] Preferably, the locking bolt is locked onto the positioning through hole of the mounting strip, the locking bolt is adapted to penetrate the pad, and the bottom surfaces of the first pressing block and the second pressing block press against the top of the thermocouple.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This milling fixture for thermocouple grooves allows for easy adjustment of the positions of the first pressing plate, the second pressing plate, and the pad on the mounting block. The fixture is bolted together through the locking bolt and the positioning through hole, ensuring that thermocouples of different lengths can be pressed, thus facilitating the milling operation. Attached Figure Description
[0013] Figure 1 This is a first three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;
[0015] Figure 3 This is a schematic diagram of the three-dimensional disassembled structure of this utility model.
[0016] In the figure: 1. Mounting block; 101. Connecting block; 102. Positioning through hole; 2. First pressing block; 201. Second pressing block; 202. Pad block; 203. Locking bolt body; 3. Thermocouple body; 4. Milling cutter body. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] During the milling process of thermocouple 3, a fixture is required to ensure that the thermocouple 3 is pressed and limited. The fixture provided by this utility model is specifically used to press and fix thermocouples 3 of different lengths and sizes in a suitable position, so as to ensure the stability of the thermocouple 3 during the processing. Before using this fixture, it is necessary to carry out preparatory work such as installation and inspection to ensure the normal use of the fixture.
[0019] like Figures 1-3As shown, this utility model provides a technical solution: a milling fixture for thermocouple grooves, including a mounting block 1, a connecting block 101 fixed on the front of the mounting block 1, the top surface of the connecting block 101 being lower than the mounting block 1, a plurality of positioning through holes 102 evenly spaced on the mounting block 1, a pressing component on the mounting block 1, the pressing component including a first pressing block 2 above the mounting block 1, a second pressing block 201 on one side of the first pressing block 2, a pad 202 at the bottom of the first pressing block 2 and the second pressing block 201, a locking bolt 203 locked on the first pressing block 2 and the second pressing block 201, and a thermocouple 3 placed on the connecting block 101. The thermocouple 3 is an existing technology, with the advantage of high precision, and is widely used.
[0020] In this embodiment, a milling cutter body 4 is provided on the outer side of the thermocouple 3. The milling cutter body 4 is used to perform horizontal milling groove operation on the thermocouple 3. The mounting strip 1 and the connecting strip 101 are fixed as one piece. The thermocouple 3 contacts the front side of the mounting strip 1 and the top side of the connecting strip 101. A retaining ring is fixed at the end of the thermocouple 3. The retaining ring contacts and limits the movement with the sides of the mounting strip 1 and the connecting strip 101. The milling cutter body 4 is existing technology to ensure that the thermocouple 3 can be milled. The retaining ring is also existing technology.
[0021] In the embodiment, the first pressing block 2 has a first through hole, the second pressing block 201 has a second through hole, the first through hole and the second through hole are adapted to the positioning through hole 102, the pad block 202 has a third through hole, the third through hole is adapted to the positioning through hole 102, wherein the locking bolt body 203 is the prior art.
[0022] In this embodiment, the locking bolt 203 is locked onto the positioning through hole 102 of the mounting strip 1. The locking bolt 203 is adapted to penetrate the pad 202. The bottom surfaces of the first pressing block 2 and the second pressing block 201 press against the top of the thermocouple 3. With the setting of this fixture, the first pressing plate, the second pressing plate and the pad can be easily adjusted in position on the mounting strip 1. The locking bolt 203 and the positioning through hole 102 are bolted together to ensure that the thermocouple 3 of different lengths can be pressed, thereby making the milling operation smooth.
[0023] Working principle: When using this fixture, the positions of the pad 202, the first pressing block 2, and the second pressing block 201 are adjusted according to the length of the thermocouple 3. The fixture is installed on a milling lathe. The thermocouple 3 is placed on the top surface of the connecting strip 101, and the thermocouple 3 is in contact with the front side of the mounting strip 1. The retaining ring is in contact with the side of the mounting strip 1. The locking bolt 203 is rotated so that the first pressing block 2 and the second pressing block 201 descend to contact the top of the thermocouple 3. The thermocouple 3 is controlled to perform milling. After the milling is completed, the locking bolt 203 is released to remove the thermocouple 3.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. A milling fixture for thermocouple grooves, comprising mounting blocks (1), characterized in that: The mounting strip (1) has a connecting strip (101) fixed on its front side. The top surface of the connecting strip (101) is lower than the mounting strip (1). Multiple positioning through holes (102) are evenly spaced on the mounting strip (1). A pressing component is provided on the mounting strip (1). The pressing component includes a first pressing block (2) provided above the mounting strip (1). A second pressing block (201) is provided on one side of the first pressing block (2). A pad (202) is provided at the bottom of the first pressing block (2) and the second pressing block (201). A locking bolt (203) is locked on the first pressing block (2) and the second pressing block (201). A thermocouple (3) is placed on the connecting strip (101).
2. The milling fixture for thermocouple grooves according to claim 1, characterized in that: A milling cutter body (4) is provided on the outside of the thermocouple (3), and the milling cutter body (4) is used to perform horizontal milling groove operation on the thermocouple (3).
3. The milling fixture for thermocouple grooves according to claim 1, characterized in that: The mounting block (1) and the connecting block (101) are fixed together. The thermocouple (3) contacts the front side of the mounting block (1) and the top side of the connecting block (101). A retaining ring is fixed at the end of the thermocouple (3). The retaining ring contacts and limits the movement of the mounting block (1) and the side of the connecting block (101).
4. A milling fixture for thermocouple grooves according to claim 1, characterized in that: The first pressing block (2) has a first through hole, and the second pressing block (201) has a second through hole. The first through hole and the second through hole are adapted to the positioning through hole (102).
5. A milling fixture for thermocouple grooves according to claim 1, characterized in that: The pad (202) has a third through hole, which is adapted to the positioning through hole (102).
6. A milling fixture for thermocouple grooves according to claim 1, characterized in that: The locking bolt (203) is locked onto the positioning through hole (102) of the mounting block (1). The locking bolt (203) is adapted to the through pad (202). The bottom surfaces of the first pressing block (2) and the second pressing block (201) press against the top of the thermocouple (3).
Citation Information
Patent Citations
Jig for fixing ceramic measuring head of thermocouple
CN117309172A