Thermostat housing testing fixture

Abstract

The utility model discloses a kind of temperature controller shell testing tools, it is related to temperature controller shell detection technical field, and the utility model includes rack, the upper portion of the rack is equipped with detection mechanism, for the appearance detection of temperature controller shell body, detection mechanism includes: appearance detection subassembly includes fixed installation in the upper portion of rack one side's cylinder, the spring in the guidance of telescopic rod pushes top plate to exert clamping force to workpiece, ensure that pressure sensor detection end and shell closely adhere, obtain each pressure point value, when detection value exceeds preset interval, drive cylinder to drive defective product hopper to slide to the below of detection station, so that unqualified product is automatically slipped to collection area along the defective product hopper of inclination, and qualified product is directly dropped into finished product hopper, to realize the automation of detection, determination, sorting, avoid detection error and sorting delay caused by artificial intervention, significantly improve the precision and efficiency of shell appearance detection.

Description

Technical Field

[0001] This utility model relates to the field of thermostat housing inspection technology, specifically a thermostat housing inspection tool. Background Technology

[0002] The thermostat housing is an important component of the thermostat. It not only protects the internal electronic components but also affects the overall appearance and durability of the thermostat. The housing is usually made of high-temperature resistant, impact-resistant, and corrosion-resistant materials, such as ABS plastic, polycarbonate, and aluminum alloy. Its size and shape are designed according to the layout of the internal components and the requirements of the external installation space.

[0003] Referring to the patent document: Patent Publication No. CN222912570U, Patent Publication Date 2025-05-27, a thermostat housing inspection tool is disclosed, including a testing platform. A testing frame is fixedly provided on the upper surface of the testing platform at one corner. T-shaped holes are opened on both sides of the testing frame and on the outer wall of the testing platform. T-shaped blocks are slidably provided inside the T-shaped holes. A cover plate is provided at one end of the T-shaped hole and on the outer wall of the testing platform. A threaded hole is opened on the cover plate. A lead screw is provided inside the threaded hole. A handwheel is provided at one end of the lead screw, and the other end is rotatably installed with the inner wall of the T-shaped hole. The lead screw is threadedly connected to the T-shaped block. A calibration plate is provided on the upper surface of the T-shaped block. Thus, the user can place the thermostat housing on the upper end of the testing platform, with one corner of it inside the testing frame. Then, the handwheel is turned to move the lead screw to move the calibration plate so that it contacts the thermostat housing. At this time, the scale at the lower end of the pointer can be checked to check whether the housing is qualified.

[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found: Traditional thermostat housing inspection mainly relies on simple measuring tools such as calipers and plug gauges, but it is difficult to accurately detect minute defects on the housing surface, such as local dents. These defects may cause cracking risks due to stress concentration during product use. At the same time, the loading, inspection, and sorting processes still require a lot of manual intervention, such as manually placing workpieces and manually reading and recording measurement data, which makes it difficult to guarantee the accuracy of the data. Furthermore, the sorting efficiency is low and the products are easily confused with qualified products.

[0005] Therefore, this utility model provides a temperature controller housing inspection tool. Utility Model Content

[0006] To address the problems of traditional thermostat housing inspection relying on simple measuring tools such as calipers and plug gauges, which makes it difficult to identify minor surface defects such as local dents, and the need for extensive manual intervention in the feeding, inspection, and sorting processes, resulting in poor data accuracy, low sorting efficiency, and easy confusion with qualified products, the purpose of this utility model is to provide a thermostat housing inspection tool.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a thermostat housing inspection fixture, comprising a frame, wherein an inspection mechanism is provided on the upper part of the frame for performing appearance inspection on the thermostat housing, the inspection mechanism comprising: The appearance inspection assembly includes a cylinder fixedly installed on one side of the upper part of the frame, a finished product hopper fixedly installed on the top of the other side of the frame, a defective product hopper at the top of the finished product hopper, a drive end of the cylinder fixedly installed on one side of the defective product hopper, an outer frame fixedly installed on one side of the upper part of the frame, multiple sets of symmetrically distributed springs fixedly installed in the middle of the outer frame, a top plate fixedly installed on one side of each set of springs, a pressure sensor fixedly installed in the middle of one side of each of the multiple top plates, and a temperature controller housing clipped in the middle of the opposite sides of the multiple top plates, with the outer wall of the temperature controller housing in contact with the detection end of the pressure sensor; The feeding assembly, located on one side of the top of the frame, is used to transport the temperature controller housing.

[0008] Preferably, the feeding assembly includes a support plate fixedly installed on one side of the top of the frame, a swing rod rotatably installed on the upper side of the support plate, a drive assembly on one side of the swing rod, a drive block on one side of the swing rod, a drive groove with a "U" shaped structure on the upper side of the support plate, a drive block slidably engaged in the middle of the drive groove on one side, a guide rail rotatably installed on one end of the drive block, a slide rail fixedly installed on the upper side of the support plate, a sliding block slidably engaged in one side of the slide rail, a guide rail slidably engaged in the middle of one side of the sliding block, a gripper fixedly installed at the bottom end of the guide rail, and a conveyor belt installed on one side of the top of the frame.

[0009] Preferably, two symmetrically distributed limiting rods are fixedly installed on the upper part of the frame, and both sides of the defective hopper are slidably locked onto the outer surface of the limiting rods.

[0010] Preferably, the upper part of the outer frame is fixedly installed with multiple sets of telescopic rods that cooperate with the springs. The end of each set of telescopic rods is fixedly installed in the middle of one side of the top plate, and the upper part of multiple top plates is provided with inclined grooves.

[0011] Preferably, the drive assembly includes a servo motor fixedly mounted on one side of the upper part of the support plate, and a swing arm fixedly mounted on the drive end of the servo motor at the middle of one side.

[0012] Preferably, a groove is provided in the middle of one side of the swing rod, and the middle part of the drive block is slidably locked in the middle of the groove. Beneficial effects

[0013] This utility model provides a temperature controller housing inspection tool. Compared with the prior art, it has the following advantages: 1. This application uses a spring to push the top plate under the guidance of the telescopic rod to apply a uniform elastic clamping force to the workpiece, ensuring that the pressure sensor detection end is in close contact with the shell and stably acquiring the values ​​of each pressure point. When the detected value exceeds the preset range, the PLC controller drives the cylinder to slide the defective hopper to below the detection station. Utilizing the pushing action of the new workpiece during the next loading, the defective products automatically slide down the inclined defective hopper to the collection area, while the qualified products fall directly into the finished product hopper. Thus, through the linkage of mechanical elastic clamping, pressure sensor feedback, and cylinder-driven sorting, automated sorting of detection, judgment, and sorting is achieved, avoiding detection errors and sorting delays caused by manual intervention, and significantly improving the accuracy and efficiency of shell appearance inspection.

[0014] 2. This application controls the swing angle of the swing arm by a servo motor, combined with the sliding trajectory of the drive block in the "U"-shaped drive groove, so that the gripper can hold the temperature controller housing of the conveyor belt and swing it along the preset path to the inspection station. At the same time, the workpiece is unloaded by squeezing it. Through the precise coordination of servo control and mechanical transmission, the intermittent conveying of the gripper and the conveyor belt is synchronized, realizing the deviation-free transfer of the workpiece from the conveyor belt to the inspection station, which significantly improves the stability and reliability of the feeding process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the frame of this utility model.

[0017] Figure 3 This is a schematic diagram of the appearance inspection component of this utility model.

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the support plate of this utility model.

[0019] In the diagram: 1. Frame; 11. Conveyor belt; 2. Inspection mechanism; 21. Appearance inspection component; 211. Cylinder; 212. Finished product hopper; 213. Defective product hopper; 214. Limiting rod; 215. Outer frame; 216. Spring; 2161. Telescopic rod; 217. Top plate; 2171. Inclined trough; 218. Pressure sensor; 219. Temperature controller housing; 22. Feeding component; 221. Support plate; 222. Slide rail; 223. Servo motor; 224. Swing rod; 225. Tank; 226. Drive block; 2261. Drive trough; 227. Sliding block; 228. Guide rail; 229. Gripper. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a thermostat housing inspection fixture, including a frame 1, with an inspection mechanism 2 on the upper part of the frame 1 for performing appearance inspection on the thermostat housing 219. The inspection mechanism 2 includes: The appearance inspection component 21 includes a cylinder 211 fixedly installed on one side of the upper part of the frame 1. A finished product hopper 212 is fixedly installed on the top of the other side of the frame 1. A defective product hopper 213 is provided at the top of the finished product hopper 212. The pressure sensor 218 detects the pressure values ​​at various points on the outer wall of the temperature controller housing 219. When the pressure is less than or greater than a preset value, it is considered a defective product. The cylinder 211 pushes the defective product hopper 213 to slide along the limit rod 214, moving it to the bottom of the outer frame 215, that is, directly above the finished product hopper 212. This allows the defective products to be pushed out after inspection and fall onto the upper surface of the defective product hopper 213 during the next loading. Since the upper surface of the defective product hopper 213 is inclined and the opening faces to the right, the defective products slide to one side. After falling, the defective product hopper 213 is reset under the drive of the cylinder 211, moving it away from the bottom of the outer frame 215. At this time, only the finished product hopper 212 is located below the outer frame 215, used for inspecting the finished products. The grid is guided and conveyed, and the upper surface of the finished product hopper 212 is also inclined with the opening facing forward. The middle of one side of the defective product hopper 213 is fixedly installed at the drive end of the cylinder 211. An outer frame 215 is fixedly installed on one side of the upper part of the frame 1. Multiple sets of symmetrically distributed springs 216 are fixedly installed in the middle of the outer frame 215. A top plate 217 is fixedly installed on one side of each set of springs 216. A pressure sensor 218 is fixedly installed in the middle of one side of multiple top plates 217. A thermostat housing 219 is clamped in the middle of the opposite side of multiple top plates 217. The outer wall of the thermostat housing 219 is in contact with the detection end of the pressure sensor 218. Under the action of the spring 216, the top plate 217 can contact the outer wall of the thermostat housing 219, so as to clamp and fix the thermostat housing 219. At the same time, the detection end of the pressure sensor 218 can contact the side wall of the thermostat housing 219 to detect its pressure value. The feeding assembly 22 is located on one side of the top of the frame 1 and is used to transport the temperature controller housing 219.

[0022] The feeding assembly 22 includes a support plate 221 fixedly installed on one side of the top of the frame 1. A swing rod 224 is rotatably mounted on the upper side of the support plate 221. A drive assembly is provided on one side of the swing rod 224, and a drive block 226 is provided on one side of the swing rod 224. A drive groove 2261 with a "U" shape is opened on the upper side of the support plate 221. One side of the drive block 226 is slidably engaged in the middle of the drive groove 2261. A guide rail 228 is rotatably mounted on one end of the drive block 226. A slide rail 222 is fixedly installed on one side of the upper part. A sliding block 227 is slidably engaged on one side of the slide rail 222. A guide rail 228 is slidably engaged in the middle of one side of the sliding block 227. A gripper 229 is fixedly installed at the bottom end of the guide rail 228. The gripper 229 adopts the SMCMHZ2 series of two-finger parallel pneumatic grippers and is equipped with silicone buffer pads at the gripper finger ends. A conveyor belt 11 is installed on one side of the top of the frame 1. The conveyor belt 11 is driven by a conventional stepper motor and is used to intermittently transport the temperature controller housing 219. Furthermore, the stepper motor is controlled by a PLC controller to achieve precise intermittent motion, synchronously cooperating with the gripper 229 to ensure that the gripper 229 accurately clamps the temperature controller housing 219 each time it moves to the upper part of the conveyor belt 11. The swinging of the swing rod 224 causes the drive block 226 to move along the drive groove 2261. Simultaneously, the cooperation of the slide rail 222, the sliding block 227, and the guide rail 228 allows the gripper 229 to reciprocate along the drive groove 2261 and move up and down. After clamping the thermostat housing 219 on its conveyor belt 11, 229 is conveyed to the upper part of the outer frame 215 and then moves downward, so that it squeezes the thermostat housing 219 that has been inspected in the middle of the top plate 217, causing it to fall into the finished product hopper 212 or the defective product hopper 213 below. After the thermostat housing 219 held by the gripper 229 enters the middle of multiple top plates 217, it is clamped by the force of its spring 216 and then the gripper 229 is released, so as to carry out the next conveying operation.

[0023] Two symmetrically distributed limiting rods 214 are fixedly installed on the upper part of the frame 1. Both sides of the defective hopper 213 are slidably locked on the outer surface of the limiting rods 214. The limiting rods 214 are used to support and guide the defective hopper 213.

[0024] Multiple sets of telescopic rods 2161 that cooperate with springs 216 are fixedly installed on the upper part of the outer frame 215. The end of each set of telescopic rods 2161 is fixedly installed on the middle of one side of the top plate 217. By setting the telescopic rods 2161, the top plate 217 can be guided, making the top plate 217 more stable when clamping the thermostat housing 219, and ensuring the stable operation of the pressure sensor 218. The upper part of the multiple top plates 217 is provided with inclined grooves 2171. The inclined grooves 2171 are used to guide the thermostat housing 219 when it enters between the multiple top plates 217, so that when the thermostat housing 219 moves downward, it can squeeze the multiple top plates 217 to expand outward.

[0025] The drive assembly includes a servo motor 223 fixedly mounted on one side of the upper part of the support plate 221, and a swing arm 224 fixedly mounted on the drive end of the servo motor 223 on one side. The servo motor 223 is model IS17P-01 and has a high-resolution encoder. Driven by the servo motor 223, the swing arm 224 can be driven to swing back and forth.

[0026] A groove 225 is provided in the middle of one side of the swing rod 224. The middle part of the drive block 226 is slidably locked in the middle of the groove 225. The groove 225 allows the drive block 226 to swing back and forth along the drive groove 2261, and also allows the drive block 226 to move along the groove 225 when moving up and down in a straight line, ensuring that the up and down movement of the drive block 226 is stable. The opening of the groove 225 is smaller than the opening of the drive groove 2261, so that the drive block 226 is locked in the middle of its drive groove 2261 and the groove 225 in a T-shaped structure.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] During operation, the temperature controller housing 219 to be tested is placed on the conveyor belt 11. The conveyor belt 11 is driven by a stepper motor to intermittently transport the temperature controller housing 219. Meanwhile, the servo motor 223 of the feeding assembly 22 drives the swing arm 224 to swing, causing the drive block 226 to slide in the groove 225 and move along the "U" shaped trajectory of the drive groove 2261. The drive block 226 controls the gripper 229 to swing back and forth and move up and down along the drive groove 2261 through the slide rail 222, guide rail 228 and sliding block 227. The gripper 229 swings to the top of the conveyor belt 11 to clamp and pick up the temperature controller housing 219 to be tested, and then swings to the top of the outer frame 215 and moves downward to send the workpiece between multiple top plates 217. At this time, the temperature controller housing 219 that has been tested in the middle of the top plate 217 will be pushed downward. The thermostat housing 219 to be tested enters between multiple top plates 217 under the guidance of the inclined groove 2171. Its spring 216 pushes the multiple top plates 217 towards the center under the guidance of the telescopic rod 2161, so that uniform pressure is applied to the outer wall of the thermostat housing 219 to achieve clamping. The pressure sensor 218 in the middle of the top plate 217 contacts the outer wall of the thermostat housing 219, detects the pressure value at each pressure point in real time, and compares it with the preset qualified range. When the pressure value exceeds the preset range, the sorting signal cylinder 211 is triggered to drive the defective hopper 213 to slide along the limit rod 214 towards the finished product hopper 212 until it is directly below the outer frame 215 and overlaps with the finished product hopper 212. During the next loading, the gripper 229 holds the new temperature controller housing 219 and moves it downward, squeezing the temperature controller housing 219 that has completed the test, causing it to fall onto the upper surface of the inclined defective hopper 213 and slide down the right opening to the defective collection area. If the temperature controller housing 219 is qualified, it will fall directly into the finished product hopper 212 below under the squeeze and be guided and conveyed to the qualified product channel along the inclined surface in front. After the unqualified parts have fallen, the cylinder 211 drives the defective hopper 213 to reset and move away from below the outer frame 215. At this time, only the finished product hopper 212 is located below the test station to ensure that the qualified parts are output normally in the future.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermostat housing inspection fixture, comprising a frame (1), characterized in that: The upper part of the frame (1) is provided with a detection mechanism (2) for visual inspection of the thermostat housing (219). The detection mechanism (2) includes: The appearance inspection component (21) includes a cylinder (211) fixedly installed on one side of the upper part of the frame (1), a finished product hopper (212) fixedly installed on the top of the other side of the frame (1), a defective product hopper (213) is provided at the top of the finished product hopper (212), a defective product hopper (213) is fixedly installed on the middle of one side of the defective product hopper (213) at the drive end of the cylinder (211), an outer frame (215) is fixedly installed on one side of the upper part of the frame (1), a number of symmetrically distributed springs (216) are fixedly installed in the middle of the outer frame (215), a top plate (217) is fixedly installed on one side of each set of springs (216), a pressure sensor (218) is fixedly installed in the middle of one side of each of the multiple top plates (217), a temperature controller housing (219) is clamped in the middle of the opposite side of the multiple top plates (217), and the outer wall of the temperature controller housing (219) is in contact with the detection end of the pressure sensor (218); The feeding assembly (22) is located on one side of the top of the frame (1) and is used to transport the temperature controller housing (219).

2. The thermostat housing inspection fixture according to claim 1, characterized in that: The feeding assembly (22) includes a support plate (221) fixedly installed on one side of the top of the frame (1). A swing rod (224) is rotatably mounted on the upper side of the support plate (221). A drive assembly is provided on one side of the swing rod (224), and a drive block (226) is provided on one side of the swing rod (224). A drive groove (2261) with a "U" shaped structure is opened on the upper side of the support plate (221). One side of the drive block (226) is slidably engaged with the drive assembly. In the middle of the groove (2261), a guide rail (228) is rotatably installed at one end of the drive block (226), a slide rail (222) is fixedly installed on one side of the upper part of the support plate (221), a sliding block (227) is slidably clamped on one side of the slide rail (222), the guide rail (228) is slidably clamped in the middle of one side of the sliding block (227), a gripper (229) is fixedly installed at the bottom end of the guide rail (228), and a conveyor belt (11) is installed on one side of the top of the frame (1).

3. A temperature controller housing inspection fixture according to claim 1, characterized in that: Two symmetrically distributed limiting rods (214) are fixedly installed on the upper part of the frame (1), and the two sides of the defective hopper (213) are slidably locked on the outer surface of the limiting rods (214).

4. A temperature controller housing inspection fixture according to claim 1, characterized in that: The upper part of the outer frame (215) is fixedly installed with multiple sets of telescopic rods (2161) that cooperate with the spring (216). The end of each set of telescopic rods (2161) is fixedly installed on the middle of one side of the top plate (217). The upper part of multiple top plates (217) is provided with inclined grooves (2171).

5. A temperature controller housing inspection fixture according to claim 2, characterized in that: The drive assembly includes a servo motor (223) fixedly mounted on one side of the upper part of the support plate (221), and a swing arm (224) fixedly mounted on the middle of one side of the drive end of the servo motor (223).

6. A temperature controller housing inspection fixture according to claim 2, characterized in that: A groove (225) is provided in the middle of one side of the swing rod (224), and the middle part of the drive block (226) is slidably locked in the middle of the groove (225).

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