Resistance adjusting device for thermistor

Abstract

The utility model relates to the technical field of resistor adjusting, in particular to a thermistor adjusting device which comprises a positioning module and a polishing module, the positioning module is used for clamping and conveying thermistors and comprises a conveying mechanism and a plurality of clamping mechanisms, the clamping mechanisms are all arranged on the conveying mechanism, and the polishing module is used for polishing the thermistors. The clamping mechanism comprises a fixing rod, and the inner side face of the fixing rod is slidably connected with a sliding rod. According to the thermistor polishing device, the sliding frames are fixedly connected with the limiting rods, the clamping mechanisms can be driven to move through the conveying mechanism, the limiting rods can enable the sliding rods to move through the round blocks, the two adjacent clamping frames move oppositely to clamp the thermistors, after polishing is completed, the clamping mechanisms continue to move, and the clamping frames loosen the thermistors; in this way, the thermistor can be clamped and loosened in the thermistor conveying process, extra time for waiting for clamping and loosening of the thermistor is not needed, and rapid resistor adjustment of the thermistor is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of resistor adjustment, in particular to a thermistor adjustment device. Background Art

[0002] A thermistor is a sensor that converts temperature changes into electrical signals, enabling temperature measurement and control. Thermistors offer advantages such as small size, high precision, fast response, and good stability, making them widely used in various temperature control and measurement systems. However, during the production process, thermistors often experience substandard resistance values. Therefore, to achieve standard resistance values ​​for various specifications, thermistor resistances are typically adjusted through methods such as laser trimming, pattern trimming, chemical treatment, and mechanical processing. Mechanical trimming involves removing some of the thermistor material through grinding, thereby adjusting the resistance.

[0003] During the mechanical processing and resistance adjustment process of thermistors, in order to prevent the thermistors from moving, it is usually necessary to fix the thermistors with the help of a clamping structure and then polish them with a polishing structure. This requires a certain amount of time to wait for the clamping and releasing of the thermistors during the resistance adjustment process, which is not conducive to the rapid progress of the thermistor resistance adjustment process. Utility Model Content

[0004] The purpose of the present invention is to provide a thermistor resistance adjustment device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A thermistor resistance adjustment device includes a positioning module and a polishing module;

[0007] The positioning module is used to clamp and convey the thermistor. The positioning module includes a conveying mechanism and a plurality of clamping mechanisms. The plurality of clamping mechanisms are all arranged on the conveying mechanism. The clamping mechanism includes a fixed rod, the inner side of the fixed rod is slidably connected to a sliding rod, the end of the sliding rod away from the fixed rod is fixedly connected to a clamping frame, the top of the side of the sliding rod is fixedly connected to a round block, and two sliding frames are provided on the top of the conveying mechanism. The inner top surface of the sliding frame is fixedly connected to a limit rod in contact with an adjacent round block;

[0008] The polishing module is used to polish and adjust the resistance of thermistors.

[0009] Furthermore, the conveying mechanism includes several support frames, two side frames, two transmission rollers, a conveyor belt, and a power motor;

[0010] The two side frames are fixedly connected to the top ends of the supporting frames, and the tops of the inner sides of the side frames are slidably connected to the sides of the adjacent sliding frames;

[0011] The two transmission rollers are both rotatably connected between the two side frames;

[0012] The conveyor belt drive is connected to two drive rollers;

[0013] The power motor is fixedly connected to a side surface of a side frame, and an output end of the power motor is transmission-connected to an end of a transmission roller.

[0014] Furthermore, the end of the fixed rod is fixedly connected to a fixed seat fixedly connected to the side of the conveyor belt, and the side of the sliding rod is slidably connected to a limiting ring fixedly connected to the side of the conveyor belt.

[0015] Preferably, the inner side surface of the fixed rod is fixedly connected to a return spring which is fixedly connected to the inner side surface of the sliding rod.

[0016] Preferably, the bottom of the side of the sliding frame is rotatably connected to an adjusting screw rod that is screwed together with the inner side of the adjacent side frame. The threads on the two adjusting screw rods rotate in opposite directions. A rectangular rod is arranged between the two adjusting screw rods. One end of the rectangular rod is fixedly connected to the end of one adjusting screw rod, and the side of the other end of the rectangular rod is slidably connected to the inner side of the other adjusting screw rod.

[0017] Preferably, the polishing module includes a fixing frame, a connecting box, and a rotating rod;

[0018] The fixing frame is fixedly connected to the top surfaces of the two side frames;

[0019] The connection box is arranged inside the fixing frame, and a driving motor is arranged inside the connection box;

[0020] The rotating rod is rotatably connected to the bottom surface of the connecting box, the output end of the driving motor is transmission-connected to the top end of the rotating rod, and the bottom end of the rotating rod is fixedly connected to a grinding block.

[0021] Furthermore, the grinding module further includes a sliding frame and a hydraulic rod;

[0022] The sliding frame is slidably connected to the fixed frame, and the bottom end of the sliding frame is fixedly connected to the top surface of the connection box;

[0023] The hydraulic rod is fixedly connected to the top surface of the fixed frame, and the output end of the hydraulic rod is transmission-connected to the top surface inside the sliding frame.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. The limit rod is fixedly connected to the sliding frame, and several clamping mechanisms are equidistantly arranged in groups of two on the conveying mechanism. The thermistor can be placed between the corresponding two clamping mechanisms, and the several clamping mechanisms can be driven to move by the conveying mechanism. When the clamping mechanism moves to the bottom of the sliding frame, the round block will contact the inclined section of the limit rod. In this way, the limit rod can move the sliding rod through the round block, so that the two adjacent clamping frames move toward each other to clamp the thermistor. Then the thermistor can be polished by the polishing module to remove part of the thermistor material, thereby adjusting the resistance value of the thermistor. After polishing is completed, the clamping mechanism continues to move, which can separate the limit rod from the round block. In this way, the limit rod will no longer limit the position of the sliding rod, thereby allowing the clamping frame to release the thermistor. In this way, the thermistor can be clamped and released during the transportation of the thermistor, and there is no need to spend extra time waiting for the clamping and release of the thermistor, which is conducive to the rapid adjustment of the thermistor resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a thermistor resistance adjustment device of the utility model;

[0027] Figure 2 It is a schematic diagram of the side frame structure in the utility model;

[0028] Figure 3 This is a schematic diagram of the sliding frame structure in the utility model;

[0029] Figure 4 This is a schematic diagram of the internal structure of the fixing rod in the present utility model;

[0030] Figure 5 This is a schematic diagram of the internal structure of the sliding frame in the utility model;

[0031] Figure 6 It is a schematic structural diagram of the polishing module in the utility model.

[0032] In the figure: 100, positioning module; 110, conveying mechanism; 111, side frame; 112, conveyor belt; 113, support frame; 114, transmission roller; 115, power motor; 120, clamping mechanism; 121, fixed seat; 122, fixed rod; 123, sliding rod; 124, limiting ring; 125, round block; 126, return spring; 130, clamping frame; 140, sliding frame; 141, adjusting screw; 142, limiting rod; 150, rectangular rod; 200, grinding module; 210, fixed frame; 220, connecting box; 230, sliding frame; 240, rotating rod; 241, grinding block; 250, hydraulic rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figure 1-4 In an embodiment of the present utility model, a thermistor resistance adjustment device includes a positioning module 100 and a polishing module 200;

[0035] The positioning module 100 is used to clamp and convey the thermistor. The positioning module 100 includes a conveying mechanism 110 and a plurality of clamping mechanisms 120. The plurality of clamping mechanisms 120 are all arranged on the conveying mechanism 110. The plurality of clamping mechanisms 120 are equidistantly arranged in groups of two on the conveying mechanism 110. The clamping mechanism 120 includes a fixed rod 122, an inner side surface of the fixed rod 122 is slidably connected to a sliding rod 123, an inner side surface of the fixed rod 122 is fixedly connected to a return spring 126 fixedly connected to the inner side surface of the sliding rod 123, an end of the sliding rod 123 away from the fixed rod 122 is fixedly connected to a clamping frame 130, a round block 125 is fixedly connected to the top of the side of the sliding rod 123, two sliding frames 140 are provided on the top of the conveying mechanism 110, and a limiting rod 142 in contact with the adjacent round block 125 is fixedly connected to the inner top surface of the sliding frame 140. The limiting rod 142 is trapezoidal as a whole and includes a straight section and two inclined sections. The straight section is located between the two inclined sections;

[0036] The polishing module 200 is used for polishing and adjusting the resistance of the thermistor.

[0037] Specifically, the thermistor can be placed between the corresponding two clamping mechanisms 120 and between the two clamping frames 130. The conveying mechanism 110 can drive the plurality of clamping mechanisms 120 to move. When the clamping mechanism 120 moves to the position of the limit rod 142, the round block 125 will contact an inclined section of the limit rod 142. In this way, the limit rod 142 can move the round block 125, and the round block 125 can drive the sliding rod 123 to move, so that the two sliding rods 123 move toward each other, thereby causing the two adjacent clamping frames 130 to move toward each other. When the round block 125 moves to the straight section of the limit rod 142, the two clamping frames 130 will clamp the thermistor. After the thermistor moves to the bottom of the polishing module 200, The transportation of the thermistor can be stopped, and then the thermistor is polished by the polishing module 200 to remove part of the thermistor material, thereby adjusting the resistance value of the thermistor. After the polishing is completed, the clamping mechanism 120 continues to move, and the round block 125 gradually moves from the straight section of the limit rod 142 to another inclined section. At this time, under the action of the return spring 126, the sliding rod 123 can be moved toward the fixed rod 122, so that the two clamping frames 130 move away from each other, so that the clamping frames 130 release the thermistor. In this way, the thermistor can be clamped and released during the transportation of the thermistor, without having to spend extra time waiting for the clamping and release of the thermistor, which is conducive to the rapid adjustment of the thermistor resistance.

[0038] Example 1

[0039] like Figure 1-2 As shown, in this embodiment, the conveying mechanism 110 includes a plurality of support frames 113, two side frames 111, two driving rollers 114, a conveying belt 112, and a power motor 115;

[0040] The two side frames 111 are fixedly connected to the top of several support frames 113, and the support frames 113 can support and position the side frames 111. The top of the inner side of the side frame 111 is slidably connected to the side of the adjacent sliding frame 140. The two transmission rollers 114 are rotatably connected between the two side frames 111. The conveyor belt 112 is transmission-connected to the two transmission rollers 114. Several clamping mechanisms 120 are equidistantly arranged in groups of two on the conveyor belt 112, and a group of two clamping mechanisms 120 is respectively located on both sides of the conveyor belt 112. The power motor 115 is fixedly connected to the side of one side frame 111, and the output end of the power motor 115 is transmission-connected to the end of a transmission roller 114.

[0041] The end of the fixed rod 122 is fixedly connected to a fixed seat 121 fixedly connected to the side of the conveyor belt 112, and the side of the sliding rod 123 is slidably connected to a limiting ring 124 fixedly connected to the side of the conveyor belt 112. The sliding rod 123 can slide relative to the limiting ring 124, the fixed seat 121 can support the fixed rod 122, and the limiting ring 124 can support the sliding rod 123.

[0042] During specific implementation, the power motor 115 can drive a transmission roller 114 to rotate, the transmission roller 114 can drive the conveyor belt 112 to rotate, and the conveyor belt 112 can drive the fixed seat 121 and the limit ring 124 to move, thereby moving the clamping mechanism 120. The thermistor can be placed on the conveyor belt 112 and located between the corresponding two clamping frames 130, and the thermistor can be transported through the conveyor belt 112.

[0043] like Figure 5 As shown, in this embodiment, the bottom side of the sliding frame 140 is rotatably connected to an adjusting screw rod 141 that is screwed together with the inner side surface of the adjacent side frame 111. The side frame 111 can limit the position of the sliding frame 140 through the adjusting screw rod 141, thereby limiting the position of the limit rod 142. The threads on the two adjusting screw rods 141 are rotated in opposite directions. A rectangular rod 150 is provided between the two adjusting screw rods 141. One end of the rectangular rod 150 is fixedly connected to the end of one adjusting screw rod 141, and the side surface of the other end of the rectangular rod 150 is slidably connected to the inner side surface of the other adjusting screw rod 141. The rectangular rod 150 can slide relative to the other adjusting screw rod 141.

[0044] During specific implementation, one adjusting screw rod 141 can be rotated, and one adjusting screw rod 141 can drive the rectangular rod 150 to rotate. Since the cross-section of the rectangular rod 150 is rectangular, the rectangular rod 150 can drive the other adjusting screw rod 141 to rotate, so that the two adjusting screw rods 141 rotate synchronously. When the adjusting screw rod 141 rotates, it can move relative to the side frame 111, and the adjusting screw rod 141 can drive the sliding frame 140 to move. The threads on the two adjusting screw rods 141 rotate in opposite directions, so that the two sliding frames 140 can move toward or away from each other, thereby adjusting the position of the sliding frame 140 and the limit rod 142. In this way, the position of the limit rod 142 can be adjusted according to the size of the thermistor, and the displacement of the clamping frame 130 can be changed, so that the clamping frame 130 can adapt to the clamping of thermistors of different sizes.

[0045] Example 2

[0046] Based on the first embodiment, Figure 6 As shown, in this embodiment, the grinding module 200 includes a fixed frame 210, a connecting box 220, a rotating rod 240, a sliding frame 230, and a hydraulic rod 250;

[0047] The fixing frame 210 is fixedly connected to the top surfaces of the two side frames 111;

[0048] The connecting box 220 is arranged inside the fixed frame 210, and a driving motor is arranged inside the connecting box 220. The rotating rod 240 is rotatably connected to the bottom surface of the connecting box 220, and the output end of the driving motor is transmission-connected to the top of the rotating rod 240. The bottom end of the rotating rod 240 is fixedly connected to the grinding block 241. The sliding frame 230 is slidingly connected to the fixed frame 210, and the bottom end of the sliding frame 230 is fixedly connected to the top surface of the connecting box 220. The hydraulic rod 250 is fixedly connected to the top surface of the fixed frame 210, and the output end of the hydraulic rod 250 is transmission-connected to the top surface of the sliding frame 230. The hydraulic rod 250 can support the connecting box 220 through the sliding frame 230.

[0049] During specific implementation, after the thermistor is transported to the bottom of the grinding block 241, the sliding frame 230 can be moved downward by the hydraulic rod 250, and the sliding frame 230 can drive the connecting box 220 to move downward, so that the grinding block 241 contacts the thermistor. At the same time, the driving motor can drive the rotating rod 240 to rotate, so that the grinding block 241 rotates, and then the thermistor is ground by the grinding block 241 to remove part of the material of the thermistor and adjust the resistance of the thermistor.

[0050] It is optional to set up only the fixing frame 210, and then set up a laser mechanism on the inner bottom surface of the fixing frame 210. In this way, when the thermistor is transported to the bottom of the laser mechanism, the laser mechanism can remove a part of the thermistor material through laser, thereby changing its resistance value and performing laser resistance adjustment on the thermistor. During the laser resistance adjustment, the thermistor can be clamped and positioned by the clamping frame 130 so that the thermistor is facing the laser mechanism, thereby improving the accuracy of the adjustment.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0052] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A thermistor resistance adjustment device, characterized in that: include: A positioning module (100) is used for clamping and conveying a thermistor. The positioning module (100) includes a conveying mechanism (110) and a plurality of clamping mechanisms (120). The plurality of clamping mechanisms (120) are all arranged on the conveying mechanism (110). The clamping mechanism (120) includes a fixed rod (122). The inner side surface of the fixed rod (122) is slidably connected to a sliding rod (123). One end of the sliding rod (123) away from the fixed rod (122) is fixedly connected to a clamping frame (130). The top of the side of the sliding rod (123) is fixedly connected to a round block (125). Two sliding frames (140) are arranged on the top of the conveying mechanism (110). The inner top surface of the sliding frame (140) is fixedly connected to a limiting rod (142) that contacts an adjacent round block (125). The polishing module (200) is used for polishing and adjusting the resistance of the thermistor.

2. The thermistor resistance adjustment device according to claim 1, characterized in that: The conveying mechanism (110) comprises: a plurality of support frames (113); The two side frames (111) are fixedly connected to the top ends of the plurality of support frames (113), and the top ends of the inner sides of the side frames (111) are slidably connected to the sides of the adjacent sliding frames (140); Two transmission rollers (114) are rotatably connected between the two side frames (111); A conveyor belt (112) is connected to two transmission rollers (114); The power motor (115) is fixedly connected to a side surface of a side frame (111), and the output end of the power motor (115) is transmission-connected to the end of a transmission roller (114).

3. The thermistor resistance adjustment device according to claim 2, characterized in that: The end of the fixed rod (122) is fixedly connected to a fixed seat (121) fixedly connected to the side of the conveyor belt (112), and the side of the sliding rod (123) is slidably connected to a limiting ring (124) fixedly connected to the side of the conveyor belt (112).

4. The thermistor resistance adjustment device according to claim 2, characterized in that: The inner side surface of the fixed rod (122) is fixedly connected to a return spring (126) which is fixedly connected to the inner side surface of the sliding rod (123).

5. The thermistor resistance adjustment device according to claim 2, characterized in that: The bottom of the side of the sliding frame (140) is rotatably connected to an adjusting screw rod (141) that is screwed together with the inner side surface of the adjacent side frame (111). The screw threads on the two adjusting screw rods (141) are screwed in opposite directions. A rectangular rod (150) is provided between the two adjusting screw rods (141). One end of the rectangular rod (150) is fixedly connected to the end of one adjusting screw rod (141), and the side surface of the other end of the rectangular rod (150) is slidably connected to the inner side surface of the other adjusting screw rod (141).

6. The thermistor resistance adjustment device according to claim 2, characterized in that: The polishing module (200) comprises: A fixing frame (210) fixedly connected to the top surfaces of the two side frames (111); A connection box (220) is arranged inside the fixing frame (210), and a driving motor is arranged inside the connection box (220); The rotating rod (240) is rotatably connected to the bottom surface of the connecting box (220), the output end of the driving motor is transmission-connected to the top end of the rotating rod (240), and the bottom end of the rotating rod (240) is fixedly connected to a grinding block (241).

7. The thermistor resistance adjustment device according to claim 6, characterized in that: The polishing module (200) further comprises: A sliding frame (230) is slidably connected to the fixed frame (210), and the bottom end of the sliding frame (230) is fixedly connected to the top surface of the connection box (220); The hydraulic rod (250) is fixedly connected to the top surface of the fixed frame (210), and the output end of the hydraulic rod (250) is transmission-connected to the inner top surface of the sliding frame (230).

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