Pressing device for a nitrogen oxygen sensor probe

Abstract

The application relates to a press-fitting device for a nitrogen-oxygen sensor probe, and relates to the technical field of probe press-fitting devices, and comprises a machining table, a pressing seat is fixed on the machining table, an accommodating cavity for placing the probe is formed in the upper surface of the pressing seat, a clearance gap in communication with the accommodating cavity is formed in the vertical surface of one side of the pressing seat, one end of the probe penetrates through the clearance gap and extends to the outside of the pressing seat; a pressing plate is slidably arranged on the machining table, a first driving element is fixed on the machining table, the pressing plate is located on the side of the pressing seat where the clearance gap is formed, the first driving element is used for driving the pressing plate to reciprocatingly move towards the direction of the clearance gap, and the pressing plate can press-fit the probe in the reciprocating moving state; the application effectively avoids the problems of damaging internal precise elements of the probe due to excessive press-fitting or causing loose connection due to insufficient press-fitting, and greatly improves the press-fitting quality and production efficiency of the nitrogen-oxygen sensor probe.

Description

Technical Field

[0001] This application relates to the technical field of probe pressing equipment, and in particular to a pressing equipment for a nitrogen and oxygen sensor probe. Background Technology

[0002] Currently, nitrogen oxide sensors play a crucial role in many fields such as vehicle exhaust emission monitoring and industrial waste gas treatment. They can accurately detect the content of nitrogen oxides in gases, providing key data for environmental control and process optimization. As the core component, the performance and reliability of the nitrogen oxide sensor probe directly affect the overall performance of the sensor. Among them, the probe base is a key structure. It not only provides support and fixation for internal components, but also needs to work in conjunction with external protection devices to ensure that the probe operates stably in complex and harsh environments, so as to meet the stringent requirements for nitrogen oxide detection in different scenarios.

[0003] In related technologies, a nitrogen and oxygen sensor probe includes a probe base, with an outer sleeve fitted at one end and an outer protective sleeve fitted at the other end. Important components such as a ceramic chip, filler, and ceramic mounting base are fixedly installed inside the probe base. After initial assembly, the connection between the outer protective sleeve and the outer sleeve is not strong enough, requiring further reinforcement. To this end, workers first place the probe on the operating table of a manual riveting machine, then manually rotate the operating lever on the riveting machine to move the clamping seat towards the probe, performing a riveting operation between the outer protective sleeve and the outer sleeve to enhance the probe's structural stability.

[0004] In the aforementioned technologies, since operators need to continuously apply force to the operating lever, prolonged operation can easily lead to hand fatigue. Moreover, when fatigued, operators find it difficult to accurately control the applied force, which may result in excessive or insufficient force. Excessive force may damage the precision components inside the probe, affecting the probe's detection accuracy and service life. Insufficient force, on the other hand, cannot achieve a good riveting effect and cannot effectively reinforce the area between the outer protective sleeve and the outer sleeve, indicating room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide a pressing device for a nitrogen and oxygen sensor probe, which solves the problem in the above-mentioned related technologies where fatigue caused by prolonged operation of the control lever affects the pressing of the probe.

[0006] The pressing device for a nitrogen and oxygen sensor probe provided in this application adopts the following technical solution: A pressing device for a nitrogen and oxygen sensor probe includes a processing table, on which a pressing seat is fixedly mounted. The upper surface of the pressing seat has a receiving cavity for inserting the probe. A clearance notch communicating with the receiving cavity is formed on a vertical surface of one side of the pressing seat. One end of the probe passes through the clearance notch and extends to the outside of the pressing seat. A pressing plate is slidably mounted on the processing table, and a first driving member is fixedly mounted thereon. The pressing plate is located on the side of the pressing seat with the clearance notch. The first driving member is used to drive the pressing plate to reciprocate in the direction of the clearance notch. The pressing plate, in its reciprocating motion, can press the probe.

[0007] By adopting the above technical solution, this design not only ensures the stable placement of the probe during the pressing process, but also provides convenient space for subsequent external connections or operations. The pressing plate sliding on the processing table cooperates with the fixed first driving component. The first driving component drives the pressing plate to move back and forth in the direction of the clearance notch, thereby realizing the pressing of the probe. This structure makes the pressing action precise and controllable, and can adjust the force and stroke according to the pressing requirements of different probes. It effectively avoids the problem of damaging the internal precision components of the probe due to excessive pressing, or the problem of weak connection due to insufficient pressing, which greatly improves the pressing quality and production efficiency of the nitrogen and oxygen sensor probe.

[0008] Optionally, the first driving component includes a driving motor fixedly mounted on the upper surface of the machining table and a driving screw coaxially fixedly connected to the output end of the driving motor. A support seat is fixedly mounted on the machining table to support the end of the driving screw away from the driving motor. A support through hole is provided on the support seat for the driving screw to pass through. The driving motor is placed horizontally with its output end facing the clearance notch. A fixing screw hole with threaded engagement is provided on the clamping plate for the driving screw to pass through.

[0009] By adopting the above technical solution, the threaded engagement between the drive screw and the fixed screw hole on the pressure plate converts the rotational motion of the drive motor into the linear reciprocating motion of the pressure plate. This transmission method is precise and reliable, and can accurately control the moving distance and pressing force of the pressure plate, effectively avoiding the impact on the quality of the nitrogen and oxygen sensor probe due to uneven or excessive pressing force. At the same time, the support base supports the end of the drive screw away from the drive motor, enhancing the stability of the drive screw and reducing its shaking and deviation during operation.

[0010] Optionally, a dovetail slider is fixed on the side of the clamping plate near the processing table, and a dovetail groove is provided on the processing table along the axis of the drive screw for the dovetail slider to be inserted and slide; when the drive screw rotates, it drives the dovetail block to slide back and forth in the dovetail groove.

[0011] By adopting the above technical solution, the cooperation between the dovetail slider and the dovetail groove provides precise guidance for the movement of the pressing plate, so that the pressing plate can only make linear reciprocating motion along the axis of the drive screw, effectively avoiding deviation and shaking during the movement, and greatly improving the accuracy and stability of the pressing action.

[0012] Optionally, a drive frame is fixedly mounted on one side edge of the processing table. A positioning seat is slidably mounted on the drive frame, and a second drive member is fixedly mounted thereon. The second drive member can drive the positioning seat to slide back and forth in the horizontal direction. A support block located above the clamping seat is fixedly mounted on the vertical side of the positioning seat away from the drive frame. A clamping member is slidably mounted on the support block, and a third drive member is fixed thereon. The third drive member can drive the clamping member to move up and down, and the clamping member can clamp the probe placed in the clamping seat.

[0013] By adopting the above technical solution, the second driving component drives the positioning seat to slide horizontally, which can flexibly adjust the horizontal position of the support block and the clamping component, so that it can accurately align with the probes at different positions in the pressing seat; the third driving component drives the clamping component to move up and down, which can apply appropriate pressure to the probe from above to clamp it according to the specific size of the probe and the pressing requirements.

[0014] Optionally, the clamping member includes a clamping rod arranged in a vertical direction and a clamping plate fixedly connected to the lower end of the clamping rod. The upper end of the clamping rod is fixedly connected to a third driving member, and a positioning notch is provided on the bottom side of the clamping plate.

[0015] By adopting the above technical solution, the clamping rod is connected to the third driving component, which can accurately transmit the power of the third driving component to the clamping plate, so as to realize the up and down movement of the clamping plate; and the positioning notch opened on the bottom side of the clamping plate can be adapted to the specific part or shape of the probe. During the clamping process, pressure is not only applied from above, but the positioning notch also limits the probe laterally to prevent it from shifting in the horizontal direction.

[0016] Optionally, the support block is slidably provided with a clamping component and fixed with a fourth driving component, the fourth driving component being able to drive the support block to move up and down; the upper surface of the processing table is provided with an upward-opening storage box, the clamping component being able to clamp the riveted probe and place it in the storage box under the drive of the second and fourth driving components; when the third driving component drives the clamping component to move down, the fourth driving component drives the clamping component to move up.

[0017] By adopting the above technical solutions, this series of actions can be completed in one go without human intervention, which greatly shortens the production cycle, improves production efficiency, reduces errors and damage that may be caused by manual operation, ensures the stability of product quality, and improves the automation and intelligence level of the entire pressing process.

[0018] Optionally, the clamping component includes a clamping rod arranged in a vertical direction and an electric gripper fixedly connected to the lower end of the clamping rod, wherein the upper end of the clamping rod is fixedly connected to a fourth driving component.

[0019] By adopting the above technical solution, the gripping rod, as a connecting component, can stably transmit the power of the fourth driving component to the electric gripper, ensuring that the electric gripper can move up and down; the electric gripper has a flexible opening and closing function, and can automatically adjust the gripping force and spacing according to the probe size, accurately and firmly gripping the probe, avoiding damage to the probe during the gripping process.

[0020] Optionally, the third driving component is a first power cylinder fixed vertically on the upper surface of the support block, and the fourth driving component is a second power cylinder fixed vertically on the upper surface of the support block; the hydraulic rod of the first power cylinder can penetrate the support block and be fixedly connected to the end of the clamping rod away from the processing table; the hydraulic rod of the second power cylinder can penetrate the support block and be fixedly connected to the end of the clamping rod away from the processing table.

[0021] By adopting the above technical solution, the first power cylinder and the second power cylinder precisely control the up and down movement of the clamping rod and the gripping rod, respectively. The cylinder power output is stable and the response is rapid, which can ensure that the clamping part quickly and accurately clamps the probe, and the gripping part efficiently and accurately completes the gripping action. Moreover, the cylinder structure is relatively simple, which is convenient for installation, debugging and maintenance, reducing the operating cost and failure rate of the equipment.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. This design ensures the stable placement of the probe during the pressing process and provides convenient space for subsequent external connections or operations. The pressing plate sliding on the processing table cooperates with the fixed first driving component. The first driving component drives the pressing plate to move back and forth in the direction of the clearance notch, thereby realizing the pressing of the probe. This structure makes the pressing action precise and controllable, and can adjust the force and stroke according to the pressing requirements of different probes. It effectively avoids the problem of damaging the internal precision components of the probe due to excessive pressing or the problem of weak connection due to insufficient pressing, which greatly improves the pressing quality and production efficiency of nitrogen and oxygen sensor probes. 2. The clamping rod is connected to the third driving component, which can accurately transmit the power of the third driving component to the clamping plate, so as to realize the up and down movement of the clamping plate; the positioning notch opened on the bottom side of the clamping plate can be adapted to the specific part or shape of the probe. During the clamping process, pressure is not only applied from above, but the positioning notch also limits the probe laterally to prevent it from shifting in the horizontal direction. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is an exploded structural diagram illustrating the installation and assembly of the drive motor and the processing table in Embodiment 1 of this application; Figure 3 This is a cross-sectional structural diagram illustrating the installation and cooperation of the drive screw and the support base in Embodiment 1 of this application; Figure 4 This is a cross-sectional structural diagram illustrating the installation and fit of the dovetail slider and the dovetail groove in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this application; Figure 6 This is a cross-sectional structural diagram illustrating the installation and cooperation of the clamping rod and the clamping plate in Embodiment 2 of this application; Figure 7 This is a partially enlarged schematic diagram of Embodiment 2 of this application, showing the installation and cooperation between the support block and the first power cylinder.

[0025] In the diagram, 1. Processing table; 11. Clamping seat; 111. Receiving cavity; 112. Clearance notch; 12. Support seat; 121. Support through hole; 13. Dovetail slide; 14. Storage box; 2. Clamping assembly; 21. Clamping plate; 211. Dovetail slider; 212. Fixing screw hole; 22. First driving component; 221. Drive motor; 2221. Servo motor; 222. Drive screw; 3. Drive frame; 31. Positioning seat 311. Support block; 312. Mounting cavity; 313. Clearance through hole; 32. Guide rod; 33. Second drive component; 331. Rodless cylinder; 3331. Moving block; 4. Clamping component; 41. Clamping rod; 42. Clamping plate; 421. Positioning notch; 5. Third drive component; 51. First power cylinder; 6. Clamping component; 61. Clamping rod; 62. Electric gripper; 7. Fourth drive component; 71. Second power cylinder. Detailed Implementation

[0026] The present application will be further described in detail below with reference to all the accompanying drawings.

[0027] Example 1: Reference Figure 1 and Figure 2A pressing device for a nitrogen and oxygen sensor probe includes a processing table 1, on which a pressing seat 11 is installed by welding. The upper surface of the pressing seat 11 has a receiving cavity 111 for inserting the probe, and a clearance notch 112 communicating with the receiving cavity 111 is opened on one vertical side of the pressing seat 11. Both the processing table 1 and the pressing seat 11 are made of stainless steel. A pressing assembly 2 is provided on the processing table 1, wherein the pressing assembly 2 includes a pressing plate 21 slidably disposed on the processing table 1 and a first driving member 22 fixedly installed on the processing table 1, and the pressing plate 21 is located on the side of the pressing seat 11 where the clearance notch 112 is opened. When riveting the part of the probe that needs to be pressed, the operator needs to place the probe into the pressing seat 11 on the processing table 1 in advance. At this time, one side of the probe can pass through the relief notch 112 and extend to the outside of the pressing seat 11. Then, the first driving member 22 drives the pressing plate 21 to move back and forth in the direction of the relief notch 112. At the same time, during the movement, the pressing plate 21 applies uniform and stable pressure to the probe, thereby realizing a fast and efficient pressing operation.

[0028] Reference Figure 2 and Figure 3 The first driving component 22 includes a drive motor 221 fixedly mounted on the upper surface of the processing table 1, and a drive screw 222 coaxially fixedly connected to the output end of the drive motor 221. A support base 12 is fixedly provided on the processing table 1 to support the end of the drive screw 222 away from the drive motor 221. A support through hole 121 is provided on the support base 12 for the drive screw 222 to pass through. The drive motor 221 is a servo motor 2221, and the servo motor 2221 is placed horizontally with its output end facing the clearance notch 112. A fixing screw hole 212 is provided on the clamping plate 21 for the drive screw 222 to pass through and is threadedly engaged. During the pressing process, the support seat 12 can prevent the drive screw 222 from shaking or shifting. At the same time, when the servo motor 2221 starts to rotate, the drive screw 222 rotates accordingly. Through the threaded transmission, the pressing plate 21 moves smoothly along the screw axis, thereby realizing the precise pressing operation of the probe placed in the pressing seat 11.

[0029] Reference Figure 2 and Figure 4 The clamping plate 21 has a dovetail slider 211 integrally formed on the side near the processing table 1, and the processing table 1 has a dovetail groove 13 along the axis of the drive screw 222 for the dovetail slider 211 to be inserted and slide. At this time, under the cooperation of the dovetail slider 211 and the dovetail groove 13, the clamping plate 21 will slide smoothly along the axis of the drive screw 222, gradually applying pressure to the probe placed in the clamping seat 11 to realize the riveting operation.

[0030] The implementation principle of this application embodiment is as follows: When performing the pressing operation, the operator must first place the nitrogen and oxygen sensor probe into the receiving cavity 111 of the pressing seat 11, so that one side of the probe passes through the clearance notch 112; then start the servo motor 2221 to drive the screw 222 to rotate, and drive the pressing plate 21 to move smoothly towards the pressing seat 11 along the axis of the driving screw 222 under the guidance of the dovetail slide 13, so as to apply uniform and stable pressure to the probe for riveting; After riveting is completed, the servo motor 2221 rotates in reverse, driving the screw 222 to move the clamping plate 21 away from the clamping seat 11 and back to the initial position for the next pressing operation. The whole process achieves fast and efficient pressing of the nitrogen and oxygen sensor probe through the precise control of the servo motor 2221, the stable support of the support seat 12, and the guiding cooperation of the dovetail slider 211 and the dovetail groove 13.

[0031] Example 2: Reference Figure 5 The difference between this embodiment and Embodiment 1 is that a drive frame 3 is installed on one side edge of the processing table 1 by welding, and a positioning seat 31 is slidably provided on the drive frame 3 and a second drive component 33 is fixedly installed thereon; a support block 311 located above the clamping seat 11 is installed on the vertical side of the positioning seat 31 away from the drive frame 3 by welding, and a pressing component 4 is slidably provided on the support block 311 and a third drive component 5 is fixedly installed thereon; The drive frame 3, positioning seat 31, and support block 311 are all made of stainless steel. During the riveting process of the probe, the second drive component 33 first moves the support block 311 on the positioning seat 31 to above the clamping seat 11, and then the third drive component 5 moves the abutment 4 downward, thereby clamping the probe in the receiving cavity 111 (see...). Figure 2 The probe inside is further limited to reduce the possibility of the probe loosening during the pressing process and ensure the smooth progress of the riveting work.

[0032] Reference Figure 6 and Figure 7 The clamping member 4 includes a clamping rod 41 arranged in a vertical direction and a clamping plate 42 fixedly connected to the lower end of the clamping rod 41. The upper end of the clamping rod 41 is fixedly connected to the third driving member 5. A positioning notch 421 for the upper surface of the probe to be inserted is provided on the bottom side of the clamping plate 42. When the probe is riveted, the positioning notch 421 on the clamping plate 42 can be inserted into the upper surface of the probe to achieve a firm connection.

[0033] Reference Figure 6 and Figure 7The second driving component 33 is a rodless cylinder 331 fixedly connected to the drive frame 3 in the horizontal direction, and a moving block 3331 is slidably mounted on the rodless cylinder 331. The positioning seat 31 has a mounting cavity 312 for the moving block 3331 to be inserted. After the moving block 3331 is inserted into the mounting cavity 312, it can be fixedly connected to the inner wall of the positioning seat 31. The rodless cylinder 331 is a conventional driving mechanism, and its specific internal structure will not be described in detail here. A guide rod 32, which is parallel to the rodless cylinder 331, is installed on the drive frame 3 by welding. A clearance through hole 313 is provided on the positioning seat 31 for the guide rod 32 to pass through. After the rodless cylinder 331 is activated, the positioning seat 31 can slide back and forth along the axis of the guide rod 32 under the drive of the rodless cylinder 331. This enables the clamping part 6 to complete the clamping action of the probe and reset it. In addition, the design of the mounting cavity 312 reduces the material of the fixing seat, making the overall structure lighter, more economical and efficient while ensuring strength and functionality.

[0034] Reference Figure 5 The support block 311 is equipped with a clamping component 6 and a fourth driving component 7 is fixedly installed; the upper surface of the processing table 1 is equipped with a storage box 14 with an upward opening; during daily tooling operations, the clamping component 6 can clamp the riveted probe and place it in the storage box 14 under the drive of the second driving component 33 and the fourth driving component 7. When the third driving component 5 moves the clamping component 4 downward to clamp the probe, the fourth driving component 7 moves the clamping component 6 upward; and when the fourth driving component 7 moves downward to clamp the clamping component 6 to clamp the probe that has been riveted, the third driving component 5 moves the clamping component 4 upward; this ensures that each component can work independently without interfering with each other, thus ensuring the smoothness and stability of the entire pressing and storage process.

[0035] Reference Figure 5 , Figure 6 and Figure 7 The clamping component 6 includes a clamping rod 61 arranged in a vertical direction and an electric gripper 62 fixedly connected to the lower end of the clamping rod 61. The upper end of the clamping rod 61 is fixedly connected to the fourth driving component 7. After the pressing of the probe is completed, the fourth driving component 7 can drive the electric gripper 62 to grab the probe and place it in the storage box 14.

[0036] Reference Figure 6 and Figure 7 The third driving component 5 is a first power cylinder 51 fixed vertically on the upper surface of the support block 311, and the fourth driving component 7 is a second power cylinder 71 fixed vertically on the upper surface of the support block 311. The hydraulic rods of the first power cylinder 51 and the second power cylinder 71 can pass through the support block 311 and be fixedly connected to the ends of the clamping rod 41 and the clamping rod 61 away from the processing table 1.

[0037] The implementation principle of this application embodiment is as follows: During the press-fitting process of the nitrogen and oxygen sensor probe, the probe is first placed into the receiving cavity 111 of the pressing seat 11; then the rodless cylinder 331 is activated to move the positioning seat 31 and the support block 311 to the appropriate position to achieve initial positioning; next, the third driving component 5 is activated to move the abutment 4 downward, at which time the positioning notch 421 on the abutment plate 42 can be engaged with the upper surface of the probe to firmly press the probe; then, the first driving component 22 will drive the pressing plate 21 to perform a riveting operation on the probe; After riveting is completed, the third drive component 5 moves the clamping component 4 upward, while the fourth drive component 7 moves the gripping component 6 downward. At this time, the electric gripper 62 can grab the probe that has been riveted. Then, the second drive component 33 moves the positioning seat 31 and the support block 311 away from the pressing seat 11, so that the gripping component 6 places the probe into the storage box 14. The whole process realizes the automated pressing, clamping, gripping and storage of the nitrogen and oxygen sensor probe through the coordinated work of each drive component, which greatly improves production efficiency and product quality.

[0038] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "one," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A press-fitting device for a nitrogen and oxygen sensor probe, characterized in that, The device includes a processing table (1), on which a clamping seat (11) is fixed. The upper surface of the clamping seat (11) is provided with a receiving cavity (111) for inserting a probe. A clearance notch (112) communicating with the receiving cavity (111) is provided on one vertical side of the clamping seat (11). One end of the probe passes through the clearance notch (112) and extends to the outside of the clamping seat (11). The processing table (1) is slidably provided with a pressing plate (21) and a first driving member (22) is fixedly provided. The pressing plate (21) is located on the side of the pressing seat (11) where a clearance notch (112) is provided. The first driving member (22) is used to drive the pressing plate (21) to move back and forth in the direction of the clearance notch (112). The pressing plate (21) can press the probe in the state of reciprocating movement.

2. The pressing device for a nitrogen and oxygen sensor probe according to claim 1, characterized in that, The first driving component (22) includes a driving motor (221) fixed on the upper surface of the processing table (1) and a driving screw (222) coaxially fixedly connected to the output end of the driving motor (221). A support seat (12) is fixed on the processing table (1) to support the end of the driving screw (222) away from the driving motor (221). The support base (12) has a support through hole (121) through which the drive screw (222) passes. The drive motor (221) is placed horizontally with its output end facing the clearance notch (112). The clamping plate (21) has a fixing screw hole (212) through which the drive screw (222) passes and is threaded.

3. The pressing device for a nitrogen and oxygen sensor probe according to claim 2, characterized in that, The clamping plate (21) is fixed with a dovetail slider (211) on the side near the processing table (1). The processing table (1) is provided with a dovetail groove (13) along the axis of the drive screw (222) for the dovetail slider (211) to be inserted and slide. When the drive screw (222) rotates, it drives the dovetail block to slide back and forth in the dovetail groove (13).

4. The pressing device for a nitrogen and oxygen sensor probe according to claim 1, characterized in that, A drive frame (3) is fixedly provided on one side edge of the processing table (1). A positioning seat (31) is slidably provided on the drive frame (3) and a second drive member (33) is fixedly provided on it. The second drive member (33) can drive the positioning seat (31) to slide back and forth in the horizontal direction. The positioning seat (31) is fixedly provided with a support block (311) above the clamping seat (11) on the vertical side away from the drive frame (3). The support block (311) is slidably provided with a clamping member (4) and a third drive member (5). The third drive member (5) can drive the clamping member (4) to move up and down. When the clamping member (4) moves down, it can clamp the probe placed in the clamping seat (11).

5. The pressing device for a nitrogen and oxygen sensor probe according to claim 4, characterized in that, The clamping member (4) includes a clamping rod (41) arranged in a vertical direction and a clamping plate (42) fixedly connected to the lower end of the clamping rod (41). The upper end of the clamping rod (41) is fixedly connected to the third driving member (5). A positioning notch (421) is provided on the bottom side of the clamping plate (42).

6. The pressing device for a nitrogen and oxygen sensor probe according to claim 4, characterized in that, The support block (311) is slidably provided with a clamping member (6) and a fourth driving member (7) is fixedly provided. The fourth driving member (7) can drive the support block (311) to move up and down. The upper surface of the processing table (1) is provided with an upward-facing storage box (14). The clamping member (6) can clamp the riveted probe and place it in the storage box (14) under the drive of the second drive member (33) and the fourth drive member (7). When the third drive member (5) drives the clamping member (4) to move down, the fourth drive member (7) drives the clamping member (6) to move up.

7. A pressing device for a nitrogen and oxygen sensor probe according to claim 6, characterized in that, The clamping member (6) includes a clamping rod (61) arranged in a vertical direction and an electric gripper (62) fixedly connected to the lower end of the clamping rod (61). The upper end of the clamping rod (61) is fixedly connected to the fourth driving member (7).

8. A press-fitting device for a nitrogen and oxygen sensor probe according to claim 6, characterized in that, The third driving member (5) is a first power cylinder (51) fixed vertically on the upper surface of the support block (311), and the fourth driving member (7) is a second power cylinder (71) fixed vertically on the upper surface of the support block (311). The hydraulic rod of the first power cylinder (51) can pass through the support block (311) and be fixedly connected to the end of the clamping rod (41) away from the processing table (1); the hydraulic rod of the second power cylinder (71) can pass through the support block (311) and be fixedly connected to the end of the clamping rod (61) away from the processing table (1).

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