Clamp for laser marking of pressure sensor surface
By designing a fixture for laser engraving on the surface of a pressure sensor, and utilizing the concentric setting of the limiting tube and the top column, the problem of inaccurate positioning during the laser engraving process on the surface of the pressure sensor was solved, achieving rapid positioning and clamping and efficient laser engraving effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU LEILI PRESSURE CONTROLLER CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-02
Smart Images

Figure CN224309832U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure sensor manufacturing technology, and in particular to a fixture for laser engraving on the surface of a pressure sensor. Background Technology
[0002] An automotive pressure sensor is a device that senses pressure signals and converts them into usable electrical output signals. It is widely used in various automotive systems to ensure the normal operation and safety of the vehicle.
[0003] Depending on the vehicle model and usage location, different pressure sensors require laser engraving to display sensor parameters, model, brand, etc., based on the usage area and corresponding parameters. This process facilitates selection. However, in existing laser engraving processes, the lack of necessary positioning and clamping for manually placed sensors leads to tilting of the engraved area and even incomplete engraving in some areas. Therefore, a rapid positioning and clamping mechanism is needed to ensure that the laser engraved area on the surface of mass-produced sensors is uniform and clear. Utility Model Content
[0004] This invention addresses the shortcomings of existing technologies by providing a fixture for laser engraving on the surface of a pressure sensor.
[0005] This utility model is achieved through the following technical solution:
[0006] A fixture for laser engraving on the surface of a pressure sensor includes a base plate, a sliding block, a screw, a support base, a locking seat, a limiting tube, an ejection mechanism, a guide rod, a second spring, a pull plate, a limiting insert plate, a top column, and a handle. The screw is fixedly mounted on the top of the sliding block, the base plate is sleeved on the top of the screw, the support base is fixedly mounted on the upper surface of the base plate, the locking seat is fixedly mounted on the top of the support base, the limiting tube is fixedly mounted at one end of the top of the locking seat, the ejection mechanism is locked at one end of the limiting tube, the guide rod is fixedly mounted on one side of the support base, the second spring is sleeved on the outside of the guide rod, the pull plate is sleeved on the outside of the guide rod, the limiting insert plate is fixedly mounted on the inner bottom side of the pull plate, the top column is fixedly mounted on the inner side of the pull plate, and the handle is fixedly mounted on the outer side of the pull plate. The ejection mechanism includes a top rod, a first spring, a pressure plate, and a protective pad. The first spring is sleeved on one end of the top rod, the pressure plate is fixedly mounted on the end of the top rod, and the protective pad is sleeved on the outside of the pressure plate.
[0007] In a preferred embodiment of this utility model, the limiting tube and the top column are concentrically arranged, and the end of the top column has a tapered structure;
[0008] After the pressure sensor is placed on top of the card holder, the concentrically arranged limiting tubes and top columns can better clamp and fix the pressure sensor.
[0009] In a preferred embodiment of the present invention, the top of the card holder is provided with an isosceles trapezoidal card groove, and the bottom of the limiting tube is provided with a connecting plate that is fixed to the bottom surface of the card groove at the top of the card holder.
[0010] The trapezoidal slot at the top of the card holder allows for better contact with the surface of the pressure sensor, while the connecting plate at the bottom of the limiting tube facilitates fixation to the card holder.
[0011] In a preferred embodiment of this utility model, a limiting plate is provided at the end of the top rod and the end of the guide rod, the first spring is located outside the limiting tube, and the second spring is located outside the pull plate;
[0012] Applying pressure to the limiting plate at the end of the push rod can compress the first spring, pushing out the pressure sensor that is stuck in the limiting tube, and the compressed second spring will press the pressure sensor back into the limiting tube.
[0013] In a preferred embodiment of the present invention, a slot is provided on one side of the support base to cooperate with the limiting insert plate, and one side of the limiting insert plate is engaged in the slot on one side of the support base.
[0014] The beneficial effects of this utility model are:
[0015] The pressure sensor surface laser engraving fixture places the car pressure sensor on the card holder surface, and then pushes the car pressure sensor forward through the top column, so that it is quickly positioned and clamped under the action of the top column and the limiting tube, thereby ensuring the clamping position, facilitating laser engraving work, ensuring uniform engraving position, clear engraving, and easy quick removal after engraving. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the fixture for laser engraving on the surface of the pressure sensor according to the present invention;
[0017] Figure 2 This is a schematic diagram of the mounting structure of the pressure sensor surface laser engraving fixture of this utility model on the surface of the engraving machine mounting table;
[0018] Figure 3 This is a schematic diagram of the mounting structure of the clamp for laser engraving on the surface of the pressure sensor according to this utility model;
[0019] Figure 4 This is a schematic diagram of the ejection mechanism of the clamp for laser engraving on the surface of the pressure sensor according to this utility model.
[0020] In the diagram: 1. Base plate; 2. Sliding block; 3. Screw; 4. Support seat; 5. Card seat; 6. Limiting tube; 7. Ejection mechanism; 71. Push rod; 72. First spring; 73. Pressure plate; 74. Protective pad; 8. Guide rod; 9. Second spring; 10. Pull plate; 11. Limiting insert plate; 12. Top column; 13. Handle. Detailed Implementation
[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.
[0022] like Figure 1-4 The fixture shown is for laser engraving on the surface of a pressure sensor, comprising a base plate 1, a sliding block 2, a screw 3, a support base 4, a clamping seat 5, a limiting tube 6, an ejection mechanism 7, a guide rod 8, a second spring 9, a pull plate 10, a limiting insert plate 11, a top column 12, and a handle 13. The screw 3 is fixedly mounted on the top of the sliding block 2, the base plate 1 is sleeved on the top of the screw 3, the support base 4 is fixedly mounted on the upper surface of the base plate 1, the clamping seat 5 is fixedly mounted on the top of the support base 4, the limiting tube 6 is fixedly mounted on one end of the top of the clamping seat 5, and the ejection mechanism 7 is clamped onto one end of the limiting tube 6. At one end, the guide rod 8 is fixedly installed on one side of the support base 4, the second spring 9 is sleeved on the outside of the guide rod 8, the pull plate 10 is sleeved on the outside of the guide rod 8, the limiting insert plate 11 is fixedly installed on the bottom inner side of the pull plate 10, the top column 12 is fixedly installed on the inner side of the pull plate 10, and the handle 13 is fixedly installed on the outside of the pull plate 10. The ejection mechanism 7 includes a top rod 71, a first spring 72, a pressure plate 73, and a protective pad 74. The first spring 72 is sleeved on one end of the top rod 71, the pressure plate 73 is fixedly installed on the end of the top rod 71, and the protective pad 74 is sleeved on the outside of the pressure plate 73.
[0023] Specifically, the limiting tube 6 and the top column 12 are concentrically arranged, the end of the top column 12 is tapered, the top of the card seat 5 is provided with an isosceles trapezoidal slot, the bottom of the limiting tube 6 is provided with a connecting plate and fixed to the bottom surface of the top slot of the card seat 5, the end of the top rod 71 and the end of the guide rod 8 are provided with limiting plates, the first spring 72 is located outside the limiting tube 6, the second spring 9 is located outside the pull plate 10, the support base 4 is provided with a slot on one side that cooperates with the limiting insert plate 11, and the limiting insert plate 11 is inserted into the slot on one side of the support base 4.
[0024] In this embodiment, the entire fixture is first fixed on the mounting surface of the laser engraving machine. The sliding block 2 can be locked in the slot on the mounting surface. After the base plate 1 is sleeved on the outside of the top screw 3 of the sliding block 2, the sliding block 2 is adjusted according to the position of the output end of the laser engraving machine so that the base plate 1 is located at the bottom of the output end. The nut on the surface of the screw 3 is tightened to fix the entire fixture. Then, the handle 13 is pulled back to move the pull plate 10 backward. The second spring 9 is compressed and contracts, placing the pressure sensor to be laser engraved in the isosceles trapezoidal slot on the top of the mounting base 5. The hexagonal surface of the pressure sensor will fit against the inner wall of the slot. At this time, the handle 13 is released. Under the action of the second spring 9, the top column 12 is pushed forward and locked to the tail end of the pressure sensor. The top of the pressure sensor will be pushed into the inside of one end of the limiting tube 6, thereby realizing the rapid positioning and clamping of the pressure sensor. At this time, the processing surface will be set horizontally upward.
[0025] Furthermore, after the laser engraving machine finishes engraving on the surface of the pressure sensor, the handle 13 is pulled back. Under the guidance of the limiting plate 11 locked in the support base 4, the top column 12 moves backward. The limiting plate 11 and the guide rod 8 effectively limit and guide the movement of the pull plate 10, ensuring that the pull plate 10 moves horizontally. Then, pressure is applied to the end of the top rod 71, and the pressure plate 73 pushes one end of the pressure sensor out from the end of the limiting tube 6. The protective pad 74 on the surface of the pressure plate 73 prevents damage to the pressure sensor, thus enabling the pressure sensor to be quickly removed.
[0026] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.
[0027] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A fixture for laser engraving on the surface of a pressure sensor, comprising a base plate (1), a sliding block (2), a screw (3), a support base (4), a clamping seat (5), a limiting tube (6), an ejection mechanism (7), a guide rod (8), a second spring (9), a pull plate (10), a limiting insert plate (11), a top column (12), and a handle (13), characterized in that: The screw (3) is fixedly mounted on the top of the sliding block (2), the base plate (1) is sleeved on the top of the screw (3), the support seat (4) is fixedly mounted on the upper surface of the base plate (1), the card seat (5) is fixedly mounted on the top of the support seat (4), the limiting tube (6) is fixedly mounted on one end of the top of the card seat (5), the ejection mechanism (7) is clamped on one end of the limiting tube (6), the guide rod (8) is fixedly mounted on one side of the support seat (4), the second spring (9) is sleeved on the outside of the guide rod (8), the pull plate (10) is sleeved on the outside of the guide rod (8), the limiting insert plate (11) is fixedly mounted on the inner side of the bottom of the pull plate (10), the top column (12) is fixedly mounted on the inner side of the pull plate (10), and the handle (13) is fixedly mounted on the outside of the pull plate (10). The ejection mechanism (7) includes an ejector rod (71), a first spring (72), a pressure plate (73), and a protective pad (74). The first spring (72) is sleeved on one end of the ejector rod (71), the pressure plate (73) is fixedly installed on the end of the ejector rod (71), and the protective pad (74) is sleeved on the outside of the pressure plate (73).
2. The fixture for laser engraving on the surface of a pressure sensor according to claim 1, characterized in that: The limiting tube (6) and the top column (12) are concentrically arranged, and the end of the top column (12) has a tapered structure.
3. The fixture for laser engraving on the surface of a pressure sensor according to claim 1, characterized in that: The card holder (5) has an isosceles trapezoidal slot at the top, and the bottom of the limiting tube (6) is provided with a connecting plate that is fixed to the bottom surface of the card slot at the top of the card holder (5).
4. The fixture for laser engraving on the surface of a pressure sensor according to claim 1, characterized in that: Limiting plates are provided at the ends of the top rod (71) and the guide rod (8), the first spring (72) is located outside the limiting tube (6), and the second spring (9) is located outside the pull plate (10).
5. The fixture for laser engraving on the surface of a pressure sensor according to claim 1, characterized in that: The support base (4) has a slot on one side that cooperates with the limiting plate (11), and the limiting plate (11) is inserted into the slot on one side of the support base (4).