Riveting equipment for nitrogen-oxygen sensor

Abstract

The utility model discloses riveting equipment for a nitrogen-oxygen sensor, and belongs to the technical field of riveting equipment. Riveting equipment of a nitrogen-oxygen sensor comprises an upper connecting block and a lower connecting block, and further comprises an upper pressing plate mounted on the upper connecting block and a lower pressing plate mounted on the lower connecting block; a limiting groove is formed in the lower pressing plate, and a riveting rod is fixedly connected to the upper pressing plate. The upper pressing plate and the lower pressing plate are slidably connected with inserting blocks, and inserting grooves are formed in the upper connecting block and the lower connecting block. When the inserting block is inserted into the inserting groove, the lower pressing plate and the upper pressing plate are fixedly installed in the lower connecting block and the upper connecting block, the operation table is used for supporting the lower connecting block, a supporting frame is fixedly connected to the operation table, an air cylinder is fixedly connected to the supporting frame, and the output end of the air cylinder is fixedly connected with the upper connecting block; according to the utility model, the connection between the upper pressing plate and the lower pressing plate and the connection between the upper connecting block and the lower connecting block can be quickly released and replaced, so that the upper pressing plate and the lower pressing plate can be replaced according to the sizes of different sensor bodies.

Description

Technical Field

[0001] This utility model relates to the field of riveting equipment technology, and in particular to a riveting device for a nitrogen and oxygen sensor. Background Technology

[0002] The nitrogen oxide sensor is a core component used to monitor the concentration of nitrogen oxides in exhaust gas. Based on the oxygen ion conductivity of zirconia ceramics, it indirectly calculates nitrogen oxide emissions by measuring the difference in oxygen concentration between exhaust gas and air. It is widely used in automotive exhaust after-treatment systems and industrial boiler emission monitoring, helping to achieve energy conservation and emission reduction.

[0003] In the production and assembly process of nitrogen and oxygen sensors, riveting equipment is usually used to assemble the housing of the nitrogen and oxygen sensors. During the assembly process, the workers usually place the sensor in the mounting limit hole first, and then start the hydraulic equipment to rivet the connection of the sensor. However, the dimensions of the mounting limit hole and the riveting equipment in the existing device are fixed, and it is impossible to operate on different dimensions. Based on this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a riveting device for a nitrogen and oxygen sensor that can overcome or at least partially solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A riveting device for a nitrogen-oxygen sensor includes an upper connecting block and a lower connecting block, and further includes: an upper pressure plate mounted on the upper connecting block, and a lower pressure plate mounted on the lower connecting block; a limit groove is formed on the lower pressure plate, and a riveting rod is fixedly connected to the upper pressure plate; an insertion block is slidably connected to the upper pressure plate and the lower pressure plate, and insertion slots are formed on the upper and lower connecting blocks; when the insertion block is inserted into the insertion slot, the lower pressure plate and the upper pressure plate are installed and fixed in the lower and upper connecting blocks.

[0007] Preferably, the plug block has a guide groove and a compression spring is fixedly connected to the plug block.

[0008] Furthermore, a push rod is slidably connected between the upper pressure plate and the lower pressure plate. When the push rod presses against the guide groove, the insertion block disengages from the insertion groove.

[0009] Furthermore, the top rod is provided with a slot. When the slot moves to the guide groove, the plug block is inserted into the slot to limit the position of the top rod.

[0010] Furthermore, a limiting sleeve is fixedly connected to the top rod located on the lower pressure plate, and a magnet is fixedly connected to the bottom of the limiting sleeve.

[0011] Preferably, a connecting rod is fixedly connected to the plug block, and the connecting rod extends to the outside of the lower pressure plate and the upper pressure plate.

[0012] Preferably, an operating table is used to support the lower connecting block. A support frame is fixedly connected to the operating table, and a cylinder is fixedly connected to the support frame. The output end of the cylinder is fixedly connected to the upper connecting block.

[0013] Preferably, the sensor body is placed in the limiting groove, and the inner wall of the riveting rod is chamfered.

[0014] Compared with the prior art, the present invention provides a riveting device for a nitrogen and oxygen sensor, which has the following advantages:

[0015] 1. The riveting device for the nitrogen-oxygen sensor uses a cylinder to drive the upper connecting block and the upper pressure plate to move downwards. After the two push rods are aligned, they continue to press, causing the plug block to be inserted into the slot on the push rod. This releases the connection between the upper pressure plate and the lower pressure plate, as well as between the upper connecting block and the lower connecting block, and allows the upper and lower pressure plates to be removed together for replacement.

[0016] 2. The riveting equipment for this nitrogen-oxygen sensor incorporates a magnet at the bottom of the limiting cylinder, making the upper and lower pressure plates a single unit for easy storage and to avoid confusion. It also allows for early observation during riveting to detect any misalignment between the upper and lower pressure plates.

[0017] The parts not covered in this device are the same as or can be implemented using existing technology. This utility model can quickly disconnect and replace the connection between the upper pressure plate and the lower pressure plate, and the upper connecting block and the lower connecting block, so that the upper pressure plate and the lower pressure plate can be replaced according to the size of different sensor bodies. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the riveting device for a nitrogen-oxygen sensor proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the upper and lower connecting blocks in a riveting device for a nitrogen-oxygen sensor proposed in this utility model.

[0020] Figure 3 This is a cross-sectional view of the upper and lower connecting blocks in a riveting device for a nitrogen-oxygen sensor according to the present invention.

[0021] Figure 4 This utility model proposes a riveting device for a nitrogen and oxygen sensor. Figure 3 Enlarged structural diagram of section A;

[0022] Figure 5 This is a schematic diagram of the plug-in block portion in a riveting device for a nitrogen-oxygen sensor according to the present invention.

[0023] Figure 6 This is a schematic diagram of the structure of the upper and lower pressure plates after extrusion in the riveting device for a nitrogen-oxygen sensor proposed in this utility model.

[0024] In the diagram: 1. Operating table; 11. Support frame; 12. Cylinder; 21. Upper connecting block; 22. Lower connecting block; 23. Upper pressure plate; 24. Lower pressure plate; 25. Riveting rod; 26. Sensor body; 27. Limiting groove; 28. Insertion groove; 3. Insertion block; 31. Connecting rod; 32. Compression spring; 33. Guide groove; 34. Top rod; 341. Slot; 342. Limiting block; 35. Limiting sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1: Refer to Figures 1-6 A riveting device for a nitrogen-oxygen sensor includes an upper connecting block 21 and a lower connecting block 22, and further includes: an upper pressure plate 23 installed on the upper connecting block 21, and a lower pressure plate 24 installed on the lower connecting block 22; a limiting groove 27 is provided on the lower pressure plate 24, and a riveting rod 25 is fixedly connected to the upper pressure plate 23; an insertion block 3 is slidably connected to the upper pressure plate 23 and the lower pressure plate 24, and insertion slots 28 are provided on the upper connecting block 21 and the lower connecting block 22; when the insertion block 3 is inserted into the insertion slot 28, the lower pressure plate 24 and the upper pressure plate 23 are installed and fixed in the lower connecting block 22 and the upper connecting block 21; an operating table 1 is used to support the lower connecting block 22; a support frame 11 is fixedly connected to the operating table 1; a cylinder 12 is fixedly connected to the support frame 11; the output end of the cylinder 12 is fixedly connected to the upper connecting block 21; a sensor body 26 is placed in the limiting groove 27; and the inner wall of the riveting rod 25 is chamfered.

[0028] In this invention, the upper connecting block 21 is moved, thereby causing the upper pressure plate 23 and the riveting rod 25 to move downwards. During the downward movement, the riveting rod 25 rivets the upper and lower halves of the sensor body 26 together. The limiting groove 27 is a regular polygon with the same shape as the outer ring of the sensor body 26, thereby limiting the mechanical energy of the sensor body 26. Insertion blocks 3 are slidably connected to both the upper pressure plate 23 and the lower pressure plate 24. Without external force, the insertion blocks 3 are inserted into the insertion groove 28. The upper pressure plate 23 and the lower pressure plate 24 are fixed in the upper connecting block 21 and the lower connecting block 22 respectively. During normal riveting, the plug-in block 3 is always inserted in the plug-in groove 28. If there is no sensor body 26 in the limiting groove 27, the upper connecting block 21 drives the upper pressure plate 23 to continue to move down, and the riveting rod 25 will be inserted into the limiting groove 27. The plug-in block 3 will disengage from the plug-in groove 28, and the upper pressure plate 23 and the lower pressure plate 24 can be taken out from the upper connecting block 21 and the lower connecting block 22.

[0029] Example 2: Refer to Figures 1-6 Similar to Embodiment 1, but further: the plug-in block 3 is provided with a guide groove 33, and a compression spring 32 is fixedly connected to the plug-in block 3. A push rod 34 is slidably connected between the upper pressure plate 23 and the lower pressure plate 24. When the push rod 34 presses the guide groove 33, the plug-in block 3 disengages from the plug-in groove 28. A slot 341 is provided on the push rod 34. When the slot 341 moves to the guide groove 33, the plug-in block 3 is inserted into the slot 341 to limit the push rod 34. A limit block 342 is fixedly connected to the push rod 34. A limit sleeve 35 is fixedly connected to the push rod 34 located on the lower pressure plate 24. A magnet is fixedly connected to the limit sleeve 3. A connecting rod 31 is fixedly connected to the plug-in block 3. The connecting rod 31 extends to the outside of the lower pressure plate 24 and the upper pressure plate 23.

[0030] In this invention, the plug-in block 3 is provided with a guide groove 33. When the end of the push rod 34 is squeezed and moved, the other end of the push rod 34 is pushed by the inclined surface to move the plug-in block 3, thereby allowing the plug-in block 3 to exit from the plug-in groove 28, thus releasing the connection between the upper connecting block 21 and the lower connecting block 22 and the upper pressure plate 23 and the lower pressure plate 24. After the inclined surface of the push rod 34 slides out of the guide groove 33, the plug-in block 3 is inserted into the slot 341 under the action of the compression spring 32, thereby limiting and locking the push rod 34. The upper pressure plate 23 and the lower pressure plate 24 can then be removed and replaced. The push rod 34 is interference-fitted with the upper pressure plate 23 and the lower pressure plate 24. During installation, simply use one hand to pinch the connecting rods 31 on both sides and move them towards the center. After pulling the top rod 34 out of the slot 341, maintain the pinched state of the connecting rods 31 so that the plug block 3 retracts inside the lower pressure plate 24 and the upper pressure plate 23. Then, put the upper pressure plate 23 into the upper connecting block 21 or the lower connecting block 22 and release the connecting rod 31. Under the action of the compression spring 32, the plug block 3 automatically inserts into the plug slot 28 to complete the installation. The top rod 34 is fixed with a limit block 342. The limit block 342 can limit the movement distance of the top rod 34, thereby preventing the top rod 34 from slipping out of the upper pressure plate 23 and the lower pressure plate 24.

[0031] The bottom of the limiting sleeve 35 has a built-in magnet, so that when two push rods 34 are connected in the limiting sleeve 35, they will be attracted together, thus making the upper pressure plate 23 and the lower pressure plate 24 into one piece, which is convenient for storage. Each pair of upper pressure plates 23 and lower pressure plates 24 are corresponding. This method can avoid confusion between upper pressure plates 23 and lower pressure plates 24 of the same specification. At the same time, during the riveting process, the push rod 34 will also be inserted into the limiting sleeve 35. If misalignment occurs, the user can find it in time and stop the operation of the equipment.

[0032] When using the device, the user first removes a set of upper pressure plates 23 and lower pressure plates 24 and separates them. Then, the user pinches the connecting rod 31 and pulls the top rod 34 out of the upper pressure plates 23 and lower pressure plates 24. The user then places the upper pressure plates 23 and lower pressure plates 24 into the upper connecting block 21 and lower connecting block 22, and releases the limiting position on the connecting rod 31. This completes the installation of the upper pressure plates 23 and lower pressure plates 24. After installation, the user simply places the sensor body 26 into the limiting groove 27 and controls the cylinder 12 to drive the upper connecting... The riveting is completed by moving the connecting block 21 and the upper pressure plate 23 downward. If it is necessary to replace the upper pressure plate 23 and the lower pressure plate 24, simply control the cylinder 12 to drive the upper connecting block 21 and the upper pressure plate 23 to continue to move downward. After the two push rods 34 are connected, they continue to squeeze, so that the plug block is inserted into the slot 341 on the push rod 34. This will release the connection between the upper pressure plate 23 and the lower pressure plate 24 and the upper connecting block 21 and the lower connecting block 22, and the upper pressure plate 23 and the lower pressure plate 24 can be taken out together.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A riveting device for a nitrogen-oxygen sensor, comprising an upper connecting block (21) and a lower connecting block (22), characterized in that, Also includes: An upper pressure plate (23) is installed on the upper connecting block (21), and a lower pressure plate (24) is installed on the lower connecting block (22); A limiting groove (27) is provided on the lower pressure plate (24), and a riveting rod (25) is fixedly connected to the upper pressure plate (23); The upper pressure plate (23) and the lower pressure plate (24) are slidably connected with plug-in blocks (3), and the upper connecting block (21) and the lower connecting block (22) are provided with plug-in slots (28); When the distance between the lower pressure plate (24) and the upper pressure plate (23) is reduced to a certain range, the plug block (3) disengages from the plug slot (28), and the upper pressure plate (23) and the lower pressure plate (24) can be replaced.

2. The riveting device for a nitrogen-oxygen sensor according to claim 1, characterized in that, The plug-in block (3) is provided with a guide groove (33), and a compression spring (32) is fixedly connected to the plug-in block (3).

3. The riveting device for a nitrogen-oxygen sensor according to claim 2, characterized in that, The upper pressure plate (23) and the lower pressure plate (24) are slidably connected by a push rod (34). When the push rod (34) presses against the guide groove (33), the plug block (3) disengages from the plug groove (28).

4. The riveting device for a nitrogen-oxygen sensor according to claim 3, characterized in that, The top rod (34) is provided with a slot (341). When the slot (341) moves to the guide groove (33), the plug block (3) is inserted into the slot (341) to limit the top rod (34). A limit block (342) is fixedly connected to the top rod (34).

5. The riveting device for a nitrogen-oxygen sensor according to claim 4, characterized in that, A limiting sleeve (35) is fixedly connected to the top rod (34) located on the lower pressure plate (24), and a magnet is fixedly connected to the bottom of the limiting sleeve (35).

6. The riveting device for a nitrogen-oxygen sensor according to claim 1, characterized in that, A connecting rod (31) is fixedly connected to the plug block (3), and the connecting rod (31) extends to the outside of the lower pressure plate (24) and the upper pressure plate (23).

7. The riveting device for a nitrogen-oxygen sensor according to claim 1, characterized in that, An operating table (1) is used to support the lower connecting block (22). A support frame (11) is fixedly connected to the operating table (1). A cylinder (12) is fixedly connected to the support frame (11). The output end of the cylinder (12) is fixedly connected to the upper connecting block (21).

8. The riveting device for a nitrogen-oxygen sensor according to claim 1, characterized in that, The sensor body (26) is placed in the limiting groove (27), and the inner wall of the riveting rod (25) is chamfered.

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