Control method of nitrogen oxygen sensor manufacturing equipment

Abstract

The invention discloses a control method for nitrogen oxygen sensor manufacturing equipment, which comprises the following steps: placing a to-be-shrinked portion of a target workpiece in a first state into a first workpiece placement cavity, and placing a wiring harness portion of the target workpiece in a clamping area of ​​a first clamping jaw assembly; when the target workpiece is in a ready state, a first shrinking mechanism is used to perform a shrinking process and clamp the to-be-shrinked portion of the target workpiece, and a wiring harness sheath of the target workpiece is longitudinally lifted through the cooperation of the first shrinking mechanism and a sheath lifting mechanism, and the target workpiece is kept in a second state by a clamping and placing mechanism and transferred to the clamping and placing mechanism, so as to be placed in a second shrinking mechanism for a secondary shrinking process, thereby avoiding interference of the wiring harness sheath on the shrinking process of an outer sleeve, protecting the wiring harness sheath and improving the shrinking process quality.

Description

Technical Field

[0001] The present invention relates to the technical field of sensor manufacturing equipment, and in particular to a control method for nitrogen oxygen sensor manufacturing equipment. Background Art

[0002] The nitrogen oxide sensor is a precision part in the automobile inspection industry. The nitrogen oxide sensor includes an outer sleeve (commonly known as a tail pipe), a soft rubber plug, a wiring harness and a wiring harness sheath. The wiring harness is passed through the soft rubber plug, and the soft rubber plug is pressed into the opening of the first end of the outer sleeve to provide protection such as waterproofing and dustproofing. The wiring harness sheath is sleeved on the outside of the wiring harness to provide protection for the wiring harness. In order to ensure a reliable connection between the soft rubber plug and the outer sleeve, the first end of the outer sleeve needs to be shrink-cut. However, it was found during production that the wiring harness sheath interfered with some of the shrinkage positions of the outer sleeve, which resulted in the wiring harness sheath being easily crushed during the shrinkage process, and the shrinkage quality of the outer sleeve being unsatisfactory due to the interference of the sheath on the shrinkage process. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a control method for nitrogen oxide sensor manufacturing equipment, which can avoid interference of the wire harness sheath on the shrinking process of the outer sleeve, protect the wire harness sheath and improve the shrinking process quality.

[0004] An embodiment of the present invention provides a control method for nitrogen oxygen sensor manufacturing equipment, which is applied to the nitrogen oxygen sensor manufacturing equipment, characterized in that the nitrogen oxygen sensor manufacturing equipment includes a first necking mechanism, a second necking mechanism, a sheath lifting mechanism, a clamping and placing mechanism, and a clamping and transferring mechanism, the first necking mechanism is provided with a first workpiece placing cavity, the second necking mechanism is provided with a second workpiece placing cavity, the sheath lifting mechanism has a first clamping jaw assembly and a first driving member, the first clamping jaw assembly is located above the first workpiece placing cavity, the clamping and placing mechanism has a second clamping jaw assembly and a second driving member, the second clamping jaw assembly is located above the second workpiece placing cavity, and the control method of the nitrogen oxygen sensor manufacturing equipment includes:

[0005] Placing the to-be-shrinked portion of the target workpiece in the first state into the first workpiece placement cavity, and placing the wiring harness portion of the target workpiece in the clamping area of ​​the first clamping jaw assembly;

[0006] When the target workpiece is in a ready state, the first shrinking mechanism performs a shrinking process and clamping on the to-be-shrinked portion of the target workpiece;

[0007] Clamping the wire harness sheath of the target workpiece by the first clamping jaw assembly and driving the first clamping jaw assembly to longitudinally lift the wire harness sheath by the first driving member, so that the target workpiece enters the second state from the first state;

[0008] clamping the target workpiece in the second state by the clamping transfer mechanism, and transferring the target workpiece from the first clamping jaw assembly to the second clamping jaw assembly;

[0009] Clamping the target workpiece in the second state by the second clamping jaw assembly and placing the to-be-shrinked portion of the target workpiece into the second workpiece placement cavity by driving the second clamping jaw assembly by the second driving member;

[0010] The second shrinking mechanism performs secondary shrinking processing on the to-be-shrinked portion of the target workpiece.

[0011] According to some embodiments of the present invention, the first shrinking mechanism includes a first shrinking plate and a first positioning assembly, the first workpiece placement cavity is arranged in the middle of the first shrinking plate, the first positioning assembly is installed in the first workpiece placement cavity, and when the target workpiece is in a ready state, the first shrinking mechanism is used to shrink and clamp the part to be shrunken of the target workpiece, including:

[0012] After the portion of the target workpiece to be shrunken enters the first workpiece placement cavity from the middle of the first shrinking plate and is positioned and fixed by the first positioning assembly, the target workpiece enters a ready state;

[0013] The first shrinking mechanism shrinks and clamps the to-be-shrinked portion of the target workpiece.

[0014] According to some embodiments of the present invention, the first positioning assembly includes a first positioning block and a clamping claw, the first positioning block is provided with a first positioning cavity, and the positioning and fixing by the first positioning assembly includes:

[0015] The portion of the target workpiece to be shrunken is placed into the first positioning cavity to be preliminarily positioned by the first positioning block;

[0016] The portion of the target workpiece to be shrunken is clamped by the clamping jaws to position and fix the portion of the target workpiece to be shrunken.

[0017] According to some embodiments of the present invention, clamping the target workpiece in the second state by the clamping transfer mechanism and transferring the target workpiece from the first clamping jaw assembly to the second clamping jaw assembly comprises:

[0018] When the first clamping jaw assembly lifts the harness sheath to a preset height, the clamping transfer mechanism moves from the initial position to the first working position and clamps the target workpiece in the second state;

[0019] Controlling the first clamping jaw assembly to release the harness sheath of the target workpiece and move to a preset position;

[0020] Controlling the first shrinking mechanism to reset so as to release the clamping state of the target workpiece;

[0021] The target workpiece is transferred to the second clamping jaw assembly by the clamping transfer mechanism.

[0022] According to some embodiments of the present invention, the clamping transfer mechanism includes a third clamping jaw assembly and a third driving member, the third clamping jaw assembly is connected to the third driving member, the third clamping jaw assembly has a first clamping position and a second clamping position arranged along the longitudinal direction, the clamping transfer mechanism moves from an initial position to a first working position, and clamps the target workpiece in the second state, including:

[0023] The third driving member drives the third clamping jaw assembly to move from the initial position to the first working position;

[0024] The wire harness sheath of the target workpiece is clamped by the first clamping position of the third clamping jaw assembly, and the outer sleeve of the target workpiece is clamped by the second clamping position of the third clamping jaw assembly.

[0025] According to some embodiments of the present invention, the clamping and placing mechanism further includes a lower pressing plate, the lower pressing plate is connected to the second driving member, a first air avoidance recess is provided on the lower pressing plate, and the second clamping jaw assembly is located above the first air avoidance recess. The control method of the nitrogen oxygen sensor manufacturing equipment also includes:

[0026] The target workpiece is transferred toward the second clamping jaw assembly by the clamping transfer mechanism, so that the wire harness of the target workpiece enters the first clearance recess and the wire harness sheath of the target workpiece enters the working range of the second clamping jaw assembly;

[0027] The second clamping jaw assembly is controlled to clamp the wire harness sheath of the target workpiece.

[0028] According to some embodiments of the present invention, the controlling the second clamping jaw assembly to clamp the wiring harness sheath of the target workpiece also includes:

[0029] The clamping and transferring mechanism is controlled to lift the target workpiece upward to a preset height position.

[0030] According to some embodiments of the present invention, the clamping and placing mechanism further includes a lifting assembly, the lifting assembly is connected to the second clamping jaw assembly, and the second clamping jaw assembly is controlled to clamp the wiring harness sheath of the target workpiece, and then further includes:

[0031] The second clamping jaw assembly and the lower pressing plate are driven downward by the second driving member to move the target workpiece toward the second workpiece placement cavity;

[0032] The second clamping jaw assembly is driven to move upward by the lifting assembly to cooperate with the lower pressing plate to tighten the target workpiece.

[0033] According to some embodiments of the present invention, the second shrinking mechanism includes a second shrinking disk and a second positioning assembly, the second workpiece placement cavity is arranged in the middle of the second shrinking disk, the second positioning assembly is installed in the second workpiece placement cavity, and the second driving member drives the second clamping jaw assembly to place the to-be-shrinked portion of the target workpiece into the second workpiece placement cavity, including:

[0034] When the portion to be shrunken of the target workpiece enters the second workpiece placement cavity from the middle of the second shrinking disk and descends to a preset height position, the portion to be shrunken of the target workpiece is positioned and the wiring harness of the target workpiece is twisted by the second positioning assembly.

[0035] According to some embodiments of the present invention, the second positioning assembly includes a second positioning block and a rotary driving member, the second positioning block is connected to the rotary driving member, the second positioning block is provided with a trumpet-shaped recess, and a second positioning cavity is provided in the middle of the trumpet-shaped recess, and the second positioning assembly is used to position the part to be shrunken of the target workpiece and to twist the wire harness of the target workpiece, including:

[0036] The second positioning block is driven to rotate by the rotary driving member;

[0037] During the rotation process, the portion of the target workpiece to be shrunken is guided by the trumpet-shaped recess, so that the portion of the target workpiece to be shrunken enters the second positioning cavity;

[0038] After the portion to be shrunken of the target workpiece enters the second positioning cavity, the portion to be shrunken of the target workpiece is driven to rotate by the second positioning block to twist the wire harness of the target workpiece.

[0039] The embodiments of the present invention have at least the following beneficial effects:

[0040] The wire harness sheath of the target workpiece is lifted longitudinally by the cooperation of the first shrinking mechanism and the sheath lifting mechanism, and the target workpiece is kept in the second state by the clamping and placing mechanism and transferred to the clamping and placing mechanism to be placed in the second shrinking mechanism for secondary shrinking processing, thereby avoiding interference of the wire harness sheath with the shrinking processing of the outer sleeve, protecting the wire harness sheath and improving the shrinking processing quality.

[0041] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0043] Figure 1 A schematic diagram of the structure of a target workpiece according to an embodiment of the present invention;

[0044] Figure 2 This is one of the structural schematic diagrams of a nitrogen oxygen sensor manufacturing device according to an embodiment of the present invention;

[0045] Figure 3 for Figure 2 The structural schematic diagram of the sheath lifting mechanism of the nitrogen oxygen sensor manufacturing equipment is shown;

[0046] Figure 4 for Figure 2 One of the structural schematic diagrams of the clamping and placing mechanism of the nitrogen oxygen sensor manufacturing equipment is shown;

[0047] Figure 5 for Figure 2 The structural schematic diagram of the clamping and transferring mechanism of the nitrogen oxygen sensor manufacturing equipment is shown;

[0048] Figure 6 This is a second structural schematic diagram of a nitrogen oxygen sensor manufacturing device according to an embodiment of the present invention;

[0049] Figure 7 for Figure 2 The structural schematic diagram of the first positioning component and the first height adjustment component of the nitrogen oxygen sensor manufacturing equipment is shown;

[0050] Figure 8 for Figure 2 The structural schematic diagram of the second positioning component and the second height adjustment component of the nitrogen oxygen sensor manufacturing equipment is shown;

[0051] Fig. 9 for Figure 2 The second structural schematic diagram of the clamping and placing structure of the nitrogen oxygen sensor manufacturing equipment is shown;

[0052] Fig.10 for Fig. 9 The middle circle shows a partial enlarged view of position A;

[0053] Fig.11 A flowchart of the steps of a control method for a nitrogen oxygen sensor manufacturing device according to an embodiment of the present invention;

[0054] Fig.12 This is the third structural schematic diagram of the nitrogen oxygen sensor manufacturing equipment according to an embodiment of the present invention.

[0055] Reference numerals:

[0056] The part to be shrunken 10, the outer sleeve 11, the soft rubber plug 12, the wire harness 13, the wire harness sheath 14, the first shrinking mechanism 100, the first workpiece placement cavity 101, the first shrinking plate 110, the first positioning assembly 120, the first positioning block 121, the first positioning cavity 1211, the clamping jaws 122, the first height adjustment assembly 130, the second shrinking mechanism 200, the second workpiece placement cavity 201, the second shrinking plate 210, the second positioning assembly 220, the second positioning block 221, the trumpet-shaped recess 2211, the second positioning cavity 2212, the rotary The rotating driving member 222, the second height adjustment assembly 230, the sheath lifting mechanism 300, the first clamping jaw assembly 310, the first driving member 320, the clamping and placing mechanism 400, the second clamping jaw assembly 410, the second driving member 420, the lower pressure plate 430, the first air avoidance recess 431, the lifting assembly 440, the pressing block 450, the pressing protrusion 451, the second air avoidance recess 452, the clamping and transferring mechanism 500, the third clamping jaw assembly 510, the first clamping position 511, the second clamping position 512, the third driving member 530, and the wiring harness placement groove 600. DETAILED DESCRIPTION

[0057] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0058] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] In the description of the present invention, "several" means one or more, "multiple" means more than two, greater than, less than, and exceeding are understood as not including the number itself, and "above", "below", and "within" are understood as including the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0060] In the description of the present invention, unless otherwise clearly defined, words such as “setting”, “installation” and “connection” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0061] In this embodiment, the target workpiece is a nitrogen oxygen sensor, please refer to Figure 1 The nitrogen oxygen sensor includes an outer sleeve 11 (commonly known as a tail pipe), a soft rubber plug 12, a wiring harness 13 and a wiring harness sheath 14, wherein the positions corresponding to the outer sleeve 11 and the soft rubber plug 12 need to be shrunken, so the portion where the outer sleeve 11 is located (also including structures such as the inner exhaust gas cover) can be regarded as the portion to be shrunken 10, the first end of the wiring harness 13 is inserted into the soft rubber plug 12, the second end of the wiring harness 13 is connected to a wiring port, the wiring harness sheath 14 is sleeved on the outside of the wiring harness 13 and the wiring harness sheath 14 can be partially sleeved on or contacted with the outer sleeve 11. After the soft rubber plug 12 and the outer sleeve 11 are assembled, the position where the outer sleeve 11 and the soft rubber plug 12 are connected is a straight cylindrical structure, and under the action of an external force of a certain strength, the soft rubber plug 12 can be pulled outward or pressed inward. In order to ensure that the connection between the soft rubber plug 12 and the outer sleeve 11 is reliable, the outer sleeve 11 needs to be shrunken to form a limiting structure. It should be noted that, during the production stage of the shrinking process, the wiring harness sheath 14 is loosely connected to the outer sleeve 11 , that is, the wiring harness sheath 14 can partially cover the outer sleeve 11 or be separated from the outer sleeve 11 .

[0062] This embodiment discloses a nitrogen oxygen sensor assembly and testing line, including nitrogen oxygen sensor manufacturing equipment, please refer to Figure 1 and Figure 2 The nitrogen oxygen sensor manufacturing equipment includes a first shrinking mechanism 100, a second shrinking mechanism 200, a sheath lifting mechanism 300, a clamping and placing mechanism 400 and a clamping and transferring mechanism 500. The first shrinking mechanism 100 is provided with a first workpiece placing cavity 101, and the first workpiece placing cavity 101 is used to accommodate a target workpiece in a first state, wherein the first state refers to that the target workpiece is in a natural state, and the wiring harness sheath 14 is partially covered on the outer sleeve 11 or is in contact with the outer sleeve 11. The second shrinking mechanism 200 is provided with a second workpiece placing cavity 201, please refer to Figure 2 and Figure 3The sheath lifting mechanism 300 has a first clamping jaw assembly 310 and a first driving member 320. The first driving member 320 adopts a linear moving module arranged along the longitudinal direction (i.e., the up and down direction) to drive the first clamping jaw assembly 310 to perform lifting and lowering movements. The first clamping jaw assembly 310 is located above the first workpiece placement cavity 101. The sheath lifting mechanism 300 is used to clamp the wiring harness sheath 14 of the target workpiece through the first clamping jaw assembly 310 under the cooperation of the first shrinking mechanism 100 and drive the first clamping jaw assembly 310 to longitudinally lift the wiring harness sheath 14 through the first driving member 320, so that the target workpiece enters the second state from the first state. Specifically, in the second state, the wiring harness sheath 14 of the target workpiece is separated from the outer sleeve 11 and is at a preset distance to avoid interference of the wiring harness sheath 14 with the shrinking processing of the outer sleeve 11. Please refer to Figure 2 and Figure 4 The clamping and placing mechanism 400 has a second clamping jaw assembly 410 and a second driving member 420. The second clamping jaw assembly 410 is located above the second workpiece placement cavity 201. The clamping and placing mechanism 400 is used to clamp the target workpiece in the second state through the second clamping jaw assembly 410 and drive the second clamping jaw assembly 410 through the second driving member 420 to place the target workpiece into the second workpiece placement cavity 201. Please refer to Figure 2 and Figure 5 The working range of the clamping and transferring mechanism 500 covers the first clamping jaw assembly 310 and the second clamping jaw assembly 410 . The clamping and transferring mechanism 500 is used to clamp the target workpiece in the second state and transfer the target workpiece from the first clamping jaw assembly 310 to the second clamping jaw assembly 410 .

[0063] The first shrinking mechanism 100 performs a shrinking process and clamping on the target workpiece, and the wire harness sheath 14 of the target workpiece is longitudinally lifted by the cooperation of the first shrinking mechanism 100 and the sheath lifting mechanism 300, and the target workpiece is kept in the second state by the clamping and transferring mechanism 500 and transferred to the clamping and placing mechanism 400 to be placed in the second shrinking mechanism 200 for secondary shrinking processing, thereby avoiding interference of the wire harness sheath 14 with the shrinking processing of the outer sleeve 11, protecting the wire harness sheath 14 and improving the shrinking processing quality.

[0064] Please refer to Figure 2 , Figure 6 and Figure 7The first shrinking mechanism 100 includes a first shrinking disk 110 and a first positioning assembly 120. The first workpiece placement cavity 101 is arranged in the middle of the first shrinking disk 110, and the first positioning assembly 120 is installed at the bottom of the first workpiece placement cavity 101. The opening of the first workpiece placement cavity 101 is the shrinking processing position of the first shrinking disk 110. The first positioning assembly 120 is used to position and support the part 10 to be shrunken of the target workpiece. When the part 10 to be shrunken of the target workpiece extends into the first workpiece placement cavity 101 and is positioned and supported by the first positioning assembly 120, the shrinking position of the target workpiece (the position of the outer sleeve 11 that needs to be shrunken) is adapted to the processing position of the first shrinking disk 110, so that the shrinking process of the target workpiece can be performed by the first shrinking disk 110. It should be noted that in the processing step corresponding to the first shrinking disk 110 , the position of the outer sleeve 11 to be shrunken does not interfere with the harness sheath 14 , so the first shrinking disk 110 can directly shrink and clamp the target workpiece.

[0065] Please refer to Figure 7 The first positioning assembly 120 includes a first positioning block 121 and a clamping jaw 122. The first positioning block 121 is provided with a first positioning cavity 1211 adapted to the target workpiece. The clamping jaw 122 is installed on the peripheral side of the first positioning block 121, and the clamping portion of the clamping jaw 122 is located above the first positioning cavity 1211. For example, the clamping jaw 122 includes a first clamping jaw and a second clamping jaw arranged oppositely, and the first clamping jaw and the second clamping jaw can move toward or away from each other, thereby realizing the clamping function, and the first positioning block 121 is installed at a position between the first clamping jaw and the second clamping jaw. After the part 10 of the target workpiece to be shrunken enters the first workpiece placement cavity 101, the part 10 of the target workpiece to be shrunken enters the first positioning cavity 1211, thereby being positioned by the first positioning block 121, and the clamping portion of the clamping jaw 122 clamps the part 10 of the target workpiece to be shrunken, thereby fixing the part 10 of the target workpiece to be shrunken.

[0066] Please continue to refer to Figure 7 The first shrinking mechanism 100 further includes a first height adjustment component 130, and the first positioning component 120 is mounted on the first height adjustment component 130. After the equipment is assembled, the shrinking position of the first shrinking disk 110 is relatively fixed, and the depth of the target workpiece inserted into the first workpiece placement cavity 101 determines the shrinking processing position of the target workpiece. Therefore, the height adjustment of the first positioning component 120 can be achieved through the first height adjustment component 130, thereby adjusting the insertion depth of the target workpiece, which is conducive to adapting to the shrinking processing of target workpieces of different lengths.

[0067] Please refer to Figure 2 , Figure 6 and Figure 8The second shrinking mechanism 200 includes a second shrinking disk 210 and a second positioning assembly 220. The second workpiece placement cavity 201 is arranged in the middle of the second shrinking disk 210, and the second positioning assembly 220 is installed at the bottom of the second workpiece placement cavity 201. The second shrinking disk 210 and the first shrinking disk 110 can both adopt existing shrinking disks, or customized shrinking disks, and the structures of the second shrinking disk 210 and the first shrinking disk 110 can be the same or different. The second positioning assembly 220 can position and support the part 10 to be shrunken of the target workpiece. It should be noted that in the processing procedure corresponding to the second shrinking disk 210, in the natural state, the wire harness sheath 14 of the target workpiece interferes with the position to be shrunken. Therefore, the wire harness sheath 14 needs to be lifted before the shrinking process to avoid the interference of the wire harness sheath 14 with the position to be shrunken.

[0068] Please refer to Figure 8 The second positioning assembly 220 includes a second positioning block 221 and a rotating drive member 222, wherein the second positioning block 221 is connected to the rotating drive member 222, and the second positioning block 221 is provided with a trumpet-shaped recess 2211, and a second positioning cavity 2212 adapted to the target workpiece is provided in the middle of the trumpet-shaped recess 2211. The trumpet-shaped recess 2211 can guide the portion 10 of the target workpiece to be shrunken so that the portion 10 of the target workpiece to be shrunken can fall into the second positioning cavity 2212, wherein the rotating drive member 222 is used to drive the second positioning block 221 to rotate, so that the second positioning block 221 drives the portion 10 of the target workpiece to be shrunken to rotate, thereby twisting the wiring harness 13 of the target workpiece. For application scenarios where the wiring harness 13 does not need to be twisted, the structure of the second positioning assembly 220 is the same as that of the first positioning assembly 120.

[0069] Please continue to refer to Figure 8 The second shrinking mechanism 200 also includes a second height adjustment component 230, and the second positioning component 220 is installed on the second height adjustment component 230. The design principle of the second height adjustment component 230 is the same as that of the first height adjustment component 130, both of which are for adjusting the insertion depth of the target workpiece, so as to adapt to the shrinking processing of target workpieces of different models. It should be noted that the first height adjustment component 130 and the second height adjustment component 230 can both use cylinders, motors or electric cylinders, etc. The first height adjustment component 130 and the second height adjustment component 230 are both used in the debugging stage before starting production, and do not participate in the action during the shrinking process.

[0070] Please refer to Fig. 9The clamping and placing mechanism 400 further includes a lower pressing plate 430 and a lifting assembly 440. The lower pressing plate 430 is connected to the second driving member 420. A first avoidance recess 431 is provided on the lower pressing plate 430. The second clamping jaw assembly 410 is located above the first avoidance recess 431 and is connected to the lifting assembly 440. The first avoidance recess 431 is used to avoid the wiring harness 13 of the target workpiece. The lifting assembly 440 is used to lift the target workpiece so that the part 10 to be shrunken of the target workpiece is in close contact with the lower pressing plate 430, so that the descending height of the target workpiece is determined according to the descending height of the lower pressing plate 430, so that the part 10 to be shrunken of the target workpiece can accurately extend into the second workpiece placement cavity 201 and descend to a predetermined depth position.

[0071] Please refer to Fig. 9 and Fig.10 In order to further optimize the quality of the shrinking process, a top pressing block 450 is installed at the bottom of the lower pressing plate 430 and is adapted to the position of the first avoidance recess 431. The top pressing block 450 is provided with a top pressing convex portion 451 and a second avoidance recess 452 that penetrates the top pressing convex portion 451, and the position of the second avoidance recess 452 is adapted to the first avoidance recess 431. The size of the top pressing convex portion 451 is equal to or similar to the size of the outer sleeve 11 of the target workpiece, and the second avoidance recess 452 is used to avoid the wiring harness 13 of the target workpiece. After the lifting assembly 440 lifts the target workpiece, the outer sleeve 11 of the target workpiece is in close contact with the top pressing convex portion 451, and there is a preset distance between the contact surface of the two and the bottom surface of the lower pressing plate 430, so that when the lower pressing plate 430 is lowered to a predetermined height, the lower pressing plate 430 will not interfere with the second shrinking disk 210, and the target workpiece can still extend into a predetermined depth position.

[0072] Please refer to Figure 5The clamping and transferring mechanism 500 includes a third clamping jaw assembly 510 and a third driving member 530. The third clamping jaw assembly 510 is connected to the third driving member 530. The third clamping jaw assembly 510 has a first clamping position 511 and a second clamping position 512 arranged in the longitudinal direction. The first clamping position 511 is used to clamp the wire harness sheath 14 of the target workpiece, and the second clamping position 512 is used to clamp the outer sleeve 11 of the target workpiece. The first clamping position 511 and the second clamping position 512 can keep the target workpiece in the second state during the transfer process. The third driving member 530 adopts a multi-degree-of-freedom moving module, for example, the third driving member 530 includes a first linear moving module, a second linear moving module and a third linear moving module, wherein the length of the first linear moving module is arranged along the connecting direction of the first clamping jaw assembly 310 and the second clamping jaw assembly 410 (such as the left-right direction), the length direction of the second linear moving module (such as the front-back direction) is perpendicular to the first linear moving module in the top projection plane, and the length direction of the third linear moving module is arranged along the longitudinal direction, so that the multi-degree-of-freedom movement of the third clamping jaw assembly 510 can be realized. Of course, according to the different arrangement positions of the first clamping jaw assembly 310 and the second clamping jaw assembly 410, the first linear moving module can be replaced by a rotating module.

[0073] In order to further understand the working principle of the nitrogen oxide sensor manufacturing equipment of this embodiment, a control method of the nitrogen oxide sensor manufacturing equipment is provided below. It should be noted that the steps of this embodiment are numbered only for the convenience of review and understanding, and do not limit the execution order of the steps.

[0074] A control method for nitrogen oxygen sensor manufacturing equipment is applied to the nitrogen oxygen sensor manufacturing equipment. The nitrogen oxygen sensor manufacturing equipment comprises a first shrinking mechanism 100, a second shrinking mechanism 200, a sheath lifting mechanism 300, a clamping and placing mechanism 400 and a clamping and transferring mechanism 500. The first shrinking mechanism 100 is provided with a first workpiece placing cavity 101, the second shrinking mechanism 200 is provided with a second workpiece placing cavity 201, the sheath lifting mechanism 300 comprises a first clamping jaw assembly 310 and a first driving member 320, the first clamping jaw assembly 310 is located above the first workpiece placing cavity 101, the clamping and placing mechanism 400 comprises a second clamping jaw assembly 410 and a second driving member 420, the second clamping jaw assembly 410 is located above the second workpiece placing cavity 201.

[0075] Please refer to Fig.11 , the control method of nitrogen oxygen sensor manufacturing equipment includes:

[0076] S100, placing the to-be-shrinked portion 10 of the target workpiece in the first state into the first workpiece placement cavity 101, and placing the wiring harness 13 portion of the target workpiece in the clamping area of ​​the first clamping jaw assembly 310;

[0077] Exemplarily, the part 10 to be shrunken of the target workpiece is placed into the first workpiece placement cavity 101 manually or by a specific manipulator. At this stage, the target workpiece is in the first state, that is, the wiring harness sheath 14 of the target workpiece is partially sleeved on the outer sleeve 11, or the wiring harness sheath 14 of the target workpiece is in contact with the outer sleeve 11 (depending on the model of the target workpiece). The wiring harness 13 of the target workpiece is partially placed in the clamping area of ​​the first clamping jaw assembly 310 so that the wiring harness 13 of the target workpiece can be hung on the first clamping jaw assembly 310. Since the wiring harness 13 of the target workpiece is relatively long, in order to avoid interference between the wiring harness 13 of the target workpiece and other mechanisms of the equipment, please refer to Fig.12 A wire harness placement groove 600 is provided adjacent to the first shrinking mechanism 100 and the second shrinking mechanism 200 so as to place the second end of the wire harness 13 of the target workpiece in the wire harness placement groove 600 .

[0078] S200, when the target workpiece is in a ready state, a first shrinking mechanism 100 is used to perform a shrinking process and clamp the to-be-shrinked portion 10 of the target workpiece;

[0079] Exemplarily, in this embodiment, the target workpiece portion 10 to be shrunken needs to be shrunken twice. The first shrunken position (such as Figure 1 The wire harness sheath 14 is easily interfered with by the second shrinking position (as shown in the mark P1). Figure 1 As shown by the mark P2), there is no interference with the harness sheath 14, and considering the characteristic that the shrinking process is to form by applying extrusion force to the to-be-shrinked portion 10 of the target workpiece, the second to-be-shrinked position is preferentially shrinked in this step.

[0080] S300, clamping the wiring harness sheath 14 of the target workpiece by the first clamping jaw assembly 310 and driving the first clamping jaw assembly 314 to longitudinally lift the wiring harness sheath 14 by the first driving member 320, so that the target workpiece enters the second state from the first state;

[0081] Exemplarily, since the shrinking process is a kind of extrusion molding method, the first shrinking mechanism 100 performs shrinking process on the target workpiece waiting for shrinking part 10 while clamping the target workpiece to be shrunken part 10. At this time, the first clamping jaw assembly 310 clamps the wire harness sheath 14 of the target workpiece and lifts it, so that the wire harness sheath 14 can be separated from the outer sleeve 11, thereby avoiding the first position to be shrunken of the outer sleeve 11. At this time, the target workpiece enters the second state from the first state.

[0082] S400, clamping the target workpiece in the second state by the clamping transfer mechanism 500, and transferring the target workpiece from the first clamping jaw assembly 310 to the second clamping jaw assembly 410;

[0083] Exemplarily, by clamping the target workpiece with the clamping transfer mechanism 500 , the target workpiece can be maintained in the second state, so that the subsequent second shrinking mechanism 200 can perform shrinking processing on the first position to be shrunken of the target workpiece.

[0084] S500, clamping the target workpiece in the second state by the second clamping jaw assembly 410 and placing the to-be-shrinked portion 10 of the target workpiece into the second workpiece placement cavity 201 by driving the second clamping jaw assembly 410 through the second driving member 420;

[0085] Exemplarily, when the target workpiece is transferred to the second clamping jaw assembly 410 , the target workpiece is maintained in the second state, and the second clamping jaw assembly 410 , driven by the second driving member 420 , places the to-be-shrinked portion 10 of the target workpiece into the second workpiece placement cavity 201 .

[0086] S600 , performing secondary shrinking processing on the to-be-shrinked portion 10 of the target workpiece by the second shrinking mechanism 200 .

[0087] Illustratively, in the second state, the harness sheath 14 of the target workpiece will not interfere with the outer sleeve 11 , and the second shrinking mechanism 200 performs secondary shrinking processing on the to-be-shrinked portion 10 of the target workpiece, which is beneficial to ensuring the shrinking processing quality.

[0088] In this way, the wire harness sheath 14 of the target workpiece is longitudinally lifted through the cooperation of the first shrinking mechanism 100 and the sheath lifting mechanism 300, and the target workpiece is kept in the second state through the clamping and placing mechanism 400 and transferred to the clamping and placing mechanism 400 to be placed in the second shrinking mechanism 200 for secondary shrinking processing, thereby avoiding the wire harness sheath 14 from interfering with the shrinking processing of the outer sleeve 11, protecting the wire harness sheath 14 and improving the shrinking processing quality.

[0089] Please refer to Figure 2 and Figure 6 The first shrinking mechanism 100 includes a first shrinking plate 110 and a first positioning assembly 120. The first workpiece placement cavity 101 is arranged in the middle of the first shrinking plate 110. The first positioning assembly 120 is installed in the first workpiece placement cavity 101. Step S200, when the target workpiece is in a ready state, the to-be-shrinked portion 10 of the target workpiece is shrunken and clamped by the first shrinking mechanism 100, including:

[0090] S210, after the to-be-shrinked portion 10 of the target workpiece enters the first workpiece placement cavity 101 from the middle of the first shrinking plate 110 and is positioned and fixed by the first positioning assembly 120, the target workpiece enters a ready state;

[0091] S220 , performing a shrinking and clamping operation on the to-be-shrinked portion 10 of the target workpiece by using the first shrinking mechanism 100 .

[0092] Exemplarily, at this stage, the target workpiece is placed manually, and the position of the portion 10 to be shrunken of the target workpiece will affect the quality of the shrunken process. For example, the depth of the portion 10 to be shrunken of the target workpiece extending into the first workpiece placement cavity 101 will affect the accuracy of the position of the shrunken process of the target workpiece. Positioning and fixing the portion 10 to be shrunken of the target workpiece by the first positioning component 120 is conducive to ensuring that the position of the portion 10 to be shrunken of the target workpiece meets expectations, thereby ensuring the accuracy of the position of the shrunken process.

[0093] Please refer to Figure 7 The first positioning assembly 120 includes a first positioning block 121 and a clamping claw 122. The first positioning block 121 is provided with a first positioning cavity 1211. In step S210, positioning and fixing are performed by the first positioning assembly 120, including:

[0094] S211, placing the to-be-shrinked portion 10 of the target workpiece into the first positioning cavity 1211, and performing preliminary positioning by means of the first positioning block 121;

[0095] S212 , clamping the portion 10 of the target workpiece to be shrunken by the clamping jaws 122 to position and fix the portion 10 of the target workpiece to be shrunken.

[0096] For example, the first positioning cavity 1211 of the first positioning block 121 can assist in positioning, and the operator can quickly place the target workpiece portion 10 to be shrunken on the first positioning block 121 for rough positioning with the assistance of the first positioning cavity 1211. Then, the target workpiece portion 10 to be shrunken is clamped by the clamping jaws 122 to achieve position correction and fixation.

[0097] Step S400, clamping the target workpiece in the second state by the clamping transfer mechanism 500, and transferring the target workpiece from the first clamping jaw assembly 310 to the second clamping jaw assembly 410, comprising:

[0098] S410, when the first clamping jaw assembly 310 lifts the harness sheath 14 to a preset height, the clamping transfer mechanism 500 moves from the initial position to the first working position and clamps the target workpiece in the second state;

[0099] S420, controlling the first clamping jaw assembly 310 to release the wiring harness sheath 14 of the target workpiece and move to a preset position;

[0100] S430, controlling the first shrinking mechanism 100 to reset to release the clamping state of the target workpiece;

[0101] S440 , transferring the target workpiece to the second clamping jaw assembly 410 through the clamping transfer mechanism 500 .

[0102] Exemplarily, the clamping and transferring mechanism 500 will not interfere with the first clamping jaw assembly 310 when it is in the initial position. When the first clamping jaw assembly 310 lifts the wiring harness sheath 14 to a preset height, the clamping and transferring mechanism 500 moves to the first working position and clamps the target workpiece, so that the target workpiece can be kept in the second state. The first clamping jaw assembly 310 releases the wiring harness sheath 14 of the target workpiece and moves to the preset position, and the moving path of the clamping and transferring mechanism 500 can be avoided. For example, the first clamping jaw assembly 310 moves a first distance to the right, and then moves a second distance upward. After the first shrinking mechanism 100 is reset, the clamping and transferring mechanism 500 can drive the target workpiece to move upward, so that the part 10 to be shrunken of the target workpiece leaves the first workpiece placement cavity 101, and then transfers to the second clamping jaw assembly 410.

[0103] Please refer to Figure 5 The clamping transfer mechanism 500 includes a third clamping jaw assembly 510 and a third driving member 530, the third clamping jaw assembly 510 is connected to the third driving member 530, and the third clamping jaw assembly 510 has a first clamping position 511 and a second clamping position 512 arranged along the longitudinal direction. In step S410, the clamping transfer mechanism 500 moves from the initial position to the first working position and clamps the target workpiece in the second state, including:

[0104] S411, driving the third clamping jaw assembly 510 to move from the initial position to the first working position by the third driving member 530;

[0105] S412 , clamp the wire harness sheath 14 of the target workpiece through the first clamping position 511 of the third clamping jaw assembly 510 , and clamp the outer sleeve 11 of the target workpiece through the second clamping position 512 of the third clamping jaw assembly 510 .

[0106] Exemplarily, the third driving member 530 adopts a multi-degree-of-freedom moving module, for example, the third driving member 530 includes a first linear moving module, a second linear moving module and a third linear moving module, wherein the length of the first linear moving module is arranged along the connecting direction of the first clamping jaw assembly 310 and the second clamping jaw assembly 410, the length direction of the second linear moving module is perpendicular to the first linear moving module in the top projection plane, and the length direction of the third linear moving module is arranged along the longitudinal direction, so that the multi-degree-of-freedom movement of the third clamping jaw assembly 510 can be realized. For another example, the third driving member 530 includes a first linear moving module and a third linear moving module, and the third linear moving module is installed on the first linear moving module. The third clamping jaw assembly 510 will not interfere with the first clamping jaw assembly 310 in the initial position, and the third driving member 530 drives the third clamping jaw assembly 510 to move from the initial position to the first working position to facilitate clamping the target workpiece. Since the first clamping position 511 and the second clamping position 512 of the third clamping jaw assembly 510 are arranged along the longitudinal direction, the first clamping position 511 clamps the wiring harness sheath 14 of the target workpiece, and the second clamping position 512 clamps the outer sleeve 11 of the target workpiece, so that the state between the wiring harness sheath 14 and the outer sleeve 11 of the target workpiece can be maintained.

[0107] Please refer to Fig. 9 and Fig.10 The clamping and placing mechanism 400 further includes a lower pressing plate 430, which is connected to the second driving member 420. The lower pressing plate 430 is provided with a first air-avoiding recess 431, and the second clamping jaw assembly 410 is located above the first air-avoiding recess 431. During the transfer process of step S400, the control method of the nitrogen oxygen sensor manufacturing equipment further includes:

[0108] S450, the target workpiece is transferred toward the second clamping jaw assembly 410 by the clamping transfer mechanism 500, so that the wire harness 13 of the target workpiece enters the first avoidance recess 431 and the wire harness sheath 14 of the target workpiece enters the working range of the second clamping jaw assembly 410;

[0109] S460 , controlling the second clamping jaw assembly 410 to clamp the wire harness sheath 14 of the target workpiece.

[0110] Illustratively, at this stage the target workpiece is in the second state, i.e., the wiring harness sheath 14 of the target workpiece is separated from the outer sleeve 11, and the second clamping jaw assembly 410 clamps the wiring harness sheath 14 of the target workpiece to ensure that the wiring harness sheath 14 is separated from the outer sleeve 11 and avoids interference of the wiring harness sheath 14 with the shrinkage position to be processed, and the first avoidance recess 431 can avoid the wiring harness 13 of the target workpiece so that the wiring harness 13 of the target workpiece can be straightened under the action of gravity.

[0111] Step S460, controlling the second clamping jaw assembly 410 to clamp the wiring harness sheath 14 of the target workpiece, which also includes:

[0112] S461, controlling the clamping transfer mechanism 500 to lift the target workpiece upward to a preset height position.

[0113] For example, the wiring harness 13 of the target workpiece is relatively long. When the clamping and transferring mechanism 500 transfers the target workpiece to the position of the second clamping jaw assembly 410, the distance between the portion to be shrunken 10 of the target workpiece and the bottom of the lower pressure plate 430 is relatively long. It is necessary to control the clamping and transferring mechanism 500 to lift the target workpiece upward to a preset height position, that is, to make the portion to be shrunken 10 of the target workpiece as close to the bottom of the lower pressure plate 430 as possible.

[0114] Please refer to Fig. 9 The clamping and placing mechanism 400 further includes a lifting assembly 440, and the lifting assembly 440 is connected to the second clamping jaw assembly 410. Step S460 controls the second clamping jaw assembly 410 to clamp the wiring harness sheath 14 of the target workpiece, and then further includes:

[0115] S462, driving the second clamping jaw assembly 410 and the lower pressing plate 430 to descend by the second driving member 420, so that the target workpiece moves toward the second workpiece placement cavity 201;

[0116] S463, driving the second clamping jaw assembly 410 to move upward through the lifting assembly 440 to cooperate with the lower pressing plate 430 to tighten the target workpiece.

[0117] Illustratively, after the second clamping jaw assembly 410 clamps the wiring harness sheath 14 of the target workpiece, the portion to be shrunken 10 of the target workpiece is connected by the wiring harness 13 of the target workpiece. During the transfer to the second workpiece placement cavity 201, it is easy to shake. Therefore, it is necessary to drive the second clamping jaw assembly 410 to move upward through the lifting assembly 440 to move the target workpiece upward until the portion to be shrunken 10 of the target workpiece abuts against the bottom of the lower pressure plate 430. At this time, under the lifting action of the second clamping jaw assembly 410 and the limiting action of the lower pressure plate 430, the portion to be shrunken 10 of the target workpiece remains in a relatively static state and is not easy to shake, so it is convenient to be placed in the second workpiece placement cavity 201.

[0118] Please refer to Figure 2 , Figure 6 and Figure 8The second shrinking mechanism 200 includes a second shrinking plate 210 and a second positioning assembly 220. The second workpiece placement cavity 201 is arranged in the middle of the second shrinking plate 210. The second positioning assembly 220 is installed in the second workpiece placement cavity 201. In step S500, the second driving member 420 drives the second clamping jaw assembly 410 to place the target workpiece to be shrunken 10 into the second workpiece placement cavity 201, including:

[0119] S510, when the to-be-shrinked portion 10 of the target workpiece enters the second workpiece placement cavity 201 from the middle of the second shrinking disk 210 and descends to a preset height position, the to-be-shrinked portion 10 of the target workpiece is positioned by the second positioning assembly 220 and the wiring harness 13 of the target workpiece is twisted.

[0120] Exemplarily, the second positioning assembly 220 includes a second positioning block 221 and a rotating driving member 222, the second positioning block 221 is connected to the rotating driving member 222, the second positioning block 221 is provided with a trumpet-shaped recess 2211, and a second positioning cavity 2212 is provided in the middle of the trumpet-shaped recess 2211. In step S510, the second positioning assembly 220 is used to position the portion 10 to be shrunken of the target workpiece and to twist the wiring harness 13 of the target workpiece, including:

[0121] S511, driving the second positioning block 221 to rotate by the rotating driving member 222;

[0122] S512, during the rotation process, the portion 10 of the target workpiece to be shrunken is guided by the trumpet-shaped recess 2211, so that the portion 10 of the target workpiece to be shrunken enters the second positioning cavity 2212;

[0123] S513 . After the to-be-shrinked portion 10 of the target workpiece enters the second positioning cavity 2212 , the to-be-shrinked portion 10 of the target workpiece is driven to rotate by the second positioning block 221 to twist the wire harness 13 of the target workpiece.

[0124] Specifically, when the part 10 to be shrunken of the target workpiece drops to a predetermined height, the bottom of the part 10 to be shrunken of the target workpiece will partially enter the second positioning cavity 2212. Although in some cases, the part 10 to be shrunken of the target workpiece may be misaligned with the second positioning cavity 2212, the second positioning block 221 rotates under the drive of the rotary drive member 222, so that the part 10 to be shrunken of the target workpiece can fall into the second positioning cavity 2212, so that the part 10 to be shrunken of the target workpiece rotates with the second positioning block 221, and then the wiring harness 13 of the target workpiece is twisted. It should be noted that twisting the wiring harness 13 of the target workpiece is not a necessary step in production, and can be adaptively selected according to production needs.

[0125] Please refer to the following Figures 1 to 10 and Fig.12 , the working process of nitrogen oxide sensor manufacturing equipment is explained.

[0126] The part 10 of the target workpiece to be shrunken is manually placed from the middle of the first shrinking disk 110 into the first workpiece placement cavity 101, wherein the first positioning block 121 of the first positioning assembly 120 in the first workpiece placement cavity 101 plays a role of rough positioning for the target workpiece, and the wiring harness 13 of the target workpiece is passed through the clamping area of ​​the first clamping jaw assembly 310, so that the wiring harness 13 of the target workpiece can be hung on the first clamping jaw assembly 310, and the end of the wiring harness 13 of the target workpiece is placed in the wiring harness placement groove 600, and the equipment is started, and the clamping jaw 122 of the first positioning assembly 120 clamps and fixes the part 10 of the target workpiece to be shrunken, and the first shrinking disk 110 performs a shrinking process and clamps the position of the target workpiece to be shrunken, and the first clamping jaw assembly 310 clamps the wiring harness sheath 14 of the target workpiece, and drives the wiring harness sheath 14 of the target workpiece to be lifted under the driving action of the first driving member 320, so that the target workpiece enters the second state from the first state;

[0127] The third clamping jaw assembly 510 moves from the initial position to the first working position under the drive of the third driving member 530, clamps the wiring harness sheath 14 of the target workpiece through the first clamping position 511 and clamps the outer sleeve 11 of the target workpiece through the second clamping position 512. The first clamping jaw assembly 310 releases the wiring harness sheath 14 of the target workpiece, and moves to the right and then upward to a preset position under the drive of the first driving member 320 to avoid the movement track of the third clamping jaw assembly 510. The third clamping jaw assembly 510 lifts the target workpiece upward under the drive of the third driving member 530, so that the part 10 to be shrunken of the target workpiece is separated from the first workpiece placement cavity 101, and then moves along the predetermined path track toward the direction of the second clamping jaw assembly 410.

[0128] Since the first clearance recess 431 of the lower pressure plate 430 is set at the end of the path trajectory of the target workpiece, when the third clamping jaw assembly 510 drives the target workpiece to move to the position of the second clamping jaw assembly 410, the wiring harness 13 of the target workpiece enters the first clearance recess 431. It should be noted that a top pressure block 450 is provided at the bottom of the lower pressure plate 430, and the second clearance recess 452 of the top pressure block 450 is adapted to the position of the first clearance recess 431, so the wiring harness 13 of the target workpiece also enters the second clearance recess 452. The third clamping jaw assembly 510 is lifted upward to a preset height position under the drive of the third driving member 530 to lift the portion 10 of the target workpiece to be shrunken to a height position closer to the bottom of the lower pressure plate 430, and the second clamping jaw assembly 410 clamps the wiring harness sheath 14 of the target workpiece to maintain the target workpiece in the second state. The second clamping jaw assembly 410 and the lower pressing plate 430 move toward the second workpiece placement cavity 201 driven by the second driving member 420. At the same time, the second clamping jaw assembly 410 lifts the target workpiece upward under the drive of the lifting assembly 440, so that the part 10 of the target workpiece to be shrunken is in contact with the bottom of the lower pressing plate 430, so that the part 10 of the target workpiece to be shrunken is tightened and fixed under the cooperation of the second clamping jaw assembly 410 and the lower pressing plate 430 to avoid shaking during the descent. The part 10 of the target workpiece to be shrunken enters the second workpiece placement cavity 201 from the middle of the second shrinking plate 210. When it descends to a predetermined height position, the second positioning block 221 rotates under the drive of the rotating driving member 222. In this process, the part 10 of the target workpiece to be shrunken falls into the second positioning cavity 2212 of the second positioning block 221, so that it rotates under the drive of the second positioning block 221, and then the wiring harness 13 of the target workpiece is twisted. Then, the second shrinking plate 210 performs secondary shrinking processing on the position to be shrunken of the target workpiece, wherein the pressing protrusion 451 of the pressing block 450 can make the portion to be shrunken 10 of the target workpiece and the lower pressing plate 430 have a preset distance, thereby avoiding the lower pressing plate 430 from interfering with the second shrinking plate 210. After the processing is completed, the second shrinking plate 210 is reset, and the second clamping jaw assembly 410 and the lower pressing plate 430 are reset under the drive of the second driving member 420, and then the second clamping jaw assembly 410 releases the harness sheath 14 of the target workpiece to facilitate the removal of the target workpiece.

[0129] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A control method for nitrogen oxygen sensor manufacturing equipment, applied to nitrogen oxygen sensor manufacturing equipment, characterized in that: The nitrogen oxygen sensor manufacturing equipment comprises a first shrinking mechanism (100), a second shrinking mechanism (200), a jacket lifting mechanism (300), a clamping and placing mechanism (400) and a clamping and transferring mechanism (500), wherein the first shrinking mechanism (100) is provided with a first workpiece placing cavity (101), the second shrinking mechanism (200) is provided with a second workpiece placing cavity (201), the jacket lifting mechanism (300) comprises a first clamping jaw assembly (310) and a first driving member (320), the first clamping jaw assembly (310) is located above the first workpiece placing cavity (101), the clamping and placing mechanism (400) comprises a second clamping jaw assembly (410) and a second driving member (420), the second clamping jaw assembly (410) is located above the second workpiece placing cavity (201), the first shrinking mechanism (100) comprises a first shrinking plate (110) and a first positioning assembly (120), the first workpiece placing cavity (101) is arranged in the middle of the first shrinking plate (110), The first positioning assembly (120) is installed in the first workpiece placement cavity (101), the first positioning assembly (120) comprises a first positioning block (121) and a clamping claw (122), the first positioning block (121) is provided with a first positioning cavity (1211), the second shrinking mechanism (200) comprises a second shrinking disk (210) and a second positioning assembly (220), the second workpiece placement cavity (201) is arranged in the middle of the second shrinking disk (210), the second positioning assembly (220) is installed in the second workpiece placement cavity (201), the second positioning assembly (220) comprises a second positioning block (221) and a rotating driving member (222), the second positioning block (221) is connected to the rotating driving member (222), the second positioning block (221) is provided with a trumpet-shaped recess (2211), and the middle of the trumpet-shaped recess (2211) is provided with a second positioning cavity (2212), and the control method of the nitrogen oxygen sensor manufacturing equipment comprises: Placing the to-be-shrinked portion (10) of the target workpiece in a first state into the first workpiece placement cavity (101), and placing the wiring harness (13) portion of the target workpiece into the clamping area of ​​the first clamping jaw assembly (310); The portion to be shrunken (10) of the target workpiece enters the first workpiece placement cavity (101) from the middle of the first shrinking plate (110), and the portion to be shrunken (10) of the target workpiece is placed in the first positioning cavity (1211) to be initially positioned by the first positioning block (121); the portion to be shrunken (10) of the target workpiece is clamped by the clamping jaws (122) to position and fix the portion to be shrunken (10) of the target workpiece, and the target workpiece enters a ready state; the portion to be shrunken (10) of the target workpiece is shrunken and clamped once by the first shrinking mechanism (100); Clamping the wiring harness sheath (14) of the target workpiece by means of the first clamping jaw assembly (310), and driving the first clamping jaw assembly (310) to longitudinally lift the wiring harness sheath (14) by means of the first driving member (320), so that the target workpiece enters a second state from the first state; clamping the target workpiece in the second state by means of the clamping and transferring mechanism (500), and transferring the target workpiece from the first clamping jaw assembly (310) to the second clamping jaw assembly (410); The target workpiece in the second state is clamped by the second clamping jaw assembly (410), and the second driving member (420) drives the second clamping jaw assembly (410) to place the portion (10) of the target workpiece to be shrunken into the second workpiece placement cavity (201), wherein when the portion (10) of the target workpiece to be shrunken enters the second workpiece placement cavity (201) from the middle of the second shrinking plate (210) and descends to a preset height position, the second positioning block (221) is driven to rotate by the rotating driving member (222); during the rotation process, the portion (10) of the target workpiece to be shrunken is guided by the trumpet-shaped recess (2211) so that the portion (10) of the target workpiece to be shrunken enters the second positioning cavity (2212); after the portion (10) of the target workpiece to be shrunken enters the second positioning cavity (2212), the portion (10) of the target workpiece to be shrunken is driven to rotate by the second positioning block (221) so as to twist the wiring harness (13) of the target workpiece; The second necking mechanism (200) performs secondary necking processing on the to-be-neck-neck portion (10) of the target workpiece.

2. The control method of nitrogen oxygen sensor manufacturing equipment according to claim 1, characterized in that: The method of clamping the target workpiece in the second state by the clamping and transferring mechanism (500) and transferring the target workpiece from the first clamping jaw assembly (310) to the second clamping jaw assembly (410) comprises: When the first clamping jaw assembly (310) lifts the wiring harness sheath (14) to a preset height, the clamping transfer mechanism (500) moves from an initial position to a first working position, and clamps the target workpiece in the second state; Controlling the first clamping jaw assembly (310) to release the wiring harness sheath (14) of the target workpiece and move to a preset position; Controlling the first shrinking mechanism (100) to reset so as to release the clamping state of the target workpiece; The target workpiece is transferred to the second clamping jaw assembly (410) through the clamping transfer mechanism (500).

3. The control method of nitrogen oxygen sensor manufacturing equipment according to claim 2, characterized in that: The clamping transfer mechanism (500) comprises a third clamping jaw assembly (510) and a third driving member (530), the third clamping jaw assembly (510) being connected to the third driving member (530), the third clamping jaw assembly (510) having a first clamping position (511) and a second clamping position (512) arranged along a longitudinal direction, the clamping transfer mechanism (500) moving from an initial position to a first working position and clamping the target workpiece in the second state, comprising: The third clamping jaw assembly (510) is driven to move from an initial position to a first working position by the third driving member (530); The wire harness sheath (14) of the target workpiece is clamped by the first clamping position (511) of the third clamping jaw assembly (510), and the outer sleeve (11) of the target workpiece is clamped by the second clamping position (512) of the third clamping jaw assembly (510).

4. The control method of nitrogen oxygen sensor manufacturing equipment according to claim 1, characterized in that: The clamping and placing mechanism (400) further comprises a lower pressing plate (430), the lower pressing plate (430) being connected to the second driving member (420), the lower pressing plate (430) being provided with a first air-avoiding recess (431), the second clamping jaw assembly (410) being located above the first air-avoiding recess (431), and the control method of the nitrogen oxygen sensor manufacturing equipment further comprises: The target workpiece is transferred toward the second clamping jaw assembly (410) by means of the clamping transfer mechanism (500), so that the wire harness (13) of the target workpiece enters the first clearance recess (431) and the wire harness sheath (14) of the target workpiece enters the working range of the second clamping jaw assembly (410); The second clamping jaw assembly (410) is controlled to clamp the wire harness sheath (14) of the target workpiece.

5. The control method of nitrogen oxygen sensor manufacturing equipment according to claim 4, characterized in that: The controlling the second clamping jaw assembly (410) to clamp the wiring harness sheath (14) of the target workpiece also includes: The clamping transfer mechanism (500) is controlled to lift the target workpiece upward to a preset height position.

6. The control method of nitrogen oxygen sensor manufacturing equipment according to claim 4 or 5, characterized in that: The clamping and placing mechanism (400) further comprises a lifting assembly (440), wherein the lifting assembly (440) is connected to the second clamping jaw assembly (410), and the second clamping jaw assembly (410) is controlled to clamp the wiring harness sheath (14) of the target workpiece, and then further comprises: The second clamping jaw assembly (410) and the lower pressing plate (430) are driven to descend by the second driving member (420), so that the target workpiece moves toward the second workpiece placement cavity (201); The second clamping jaw assembly (410) is driven to move upwards by the lifting assembly (440) to cooperate with the lower pressing plate (430) to tighten the target workpiece.

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