Jig elevator

Abstract

The utility model discloses a jig lifting machine. The jig lifting machine comprises a rack, a lifting assembly and a lifting platform. The lifting platform comprises a lifting frame, a conveying assembly, a first sensor and a second sensor, the lifting frame is arranged on the lifting assembly, the conveying assembly is arranged on the lifting frame, and the first sensor and the second sensor are arranged at the two ends, in the X-axis direction, of the lifting frame correspondingly and used for sensing the jig and limiting the moving position of the jig in the X-axis direction correspondingly; the lifting assembly is arranged on the rack and used for driving the lifting frame to ascend and descend in the Z-axis direction. The lifting platform is arranged on the lifting assembly or connected with the lifting assembly, and the lifting assembly drives the lifting platform to do lifting motion, so that the conveying assembly is in butt joint with the upper conveying layer or the lower conveying layer, and the conveying assembly conveys the jigs into the lifting frame and conveys the jigs on the lifting frame into the upper conveying layer or the lower conveying layer. The jigs can be transferred on different transfer layers, and the automatic transfer effect of the jigs on a production line is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a fixture elevator. Background Art

[0002] Some heaters use PTC thermistors (Positive Temperature Coefficient) as heating elements, commonly found in water heaters, air conditioners, automobiles, and electronic devices. These heaters generate heat by passing an electric current through the PTC material. By leveraging the PTC material's increasing resistance as temperature rises, they automatically control the temperature and prevent overheating and short circuits. These thermistors offer advantages such as stable resistance, high safety, energy conservation and environmental protection, automatic recovery, excellent resistance to high currents, fast recovery time, compact size, and easy installation.

[0003] In some heater production lines, jigs are used to support the heaters during assembly and testing. Each time a heater is produced, a jig is moved from the start to the end of the production line. After a certain number of heaters are produced, the jig needs to be moved from the end to the start, resulting in a low level of automation in the flow of jigs on the production line. Utility Model Content

[0004] In order to solve the technical problem of low degree of automation of jig flow in the production line in the prior art, one of the purposes of the utility model is to provide a jig elevator suitable for a double-layer conveyor line, which can transport the jig on the upper and lower conveyor lines, so that the jig can be switched to the lower conveyor line for reflux conveyance after production conveyance through the upper conveyor line, so that the jig can be automatically conveyed.

[0005] One of the purposes of this utility model is achieved by the following technical solution:

[0006] A jig lifter, comprising a frame, a lifting assembly, and a lifting platform;

[0007] The lifting platform includes a lifting frame, a conveying assembly, a first sensor and a second sensor. The lifting frame is arranged on the lifting assembly. The conveying assembly is arranged on the lifting frame for carrying the jig and conveying the jig in and out of the lifting frame along the X-axis direction. The first sensor and the second sensor are respectively arranged at both ends of the lifting frame along the X-axis direction, and are respectively used to sense the jig and limit the movement position of the jig in the X-axis direction;

[0008] The lifting assembly is arranged on the frame and is used to lift the lifting frame along the Z-axis direction.

[0009] Optionally, the transmission assembly includes a conveyor belt, a driving wheel, a driven wheel, a power element, a transmission mechanism and two wheel plates;

[0010] The two wheel plates are arranged side by side on both sides of the lifting frame in the Y-axis direction, and the driving wheel and the driven wheel are respectively provided at both ends of the wheel plate;

[0011] The two conveyor belts are respectively wound around the driving wheel and the driven wheel on the two wheel plates;

[0012] The transmission mechanism is arranged on the lifting frame, and the transmission mechanism is also connected to the two driving wheels;

[0013] The power element is connected to the transmission mechanism.

[0014] Optionally, the transmission assembly further includes a tensioning adjustment mechanism, which is disposed on the wheel plate and connected to the driven wheel to adjust the distance between the driven wheel and the driving wheel.

[0015] Optionally, an entrance and exit is provided on one side of the lifting frame in the X-axis direction, and an entrance and exit channel extending along the X-axis direction is provided in the middle of the lifting frame, and the entrance and exit channel extends from the entrance and exit to the other opposite side to allow the downward protruding part of the fixture to pass through.

[0016] Optionally, a limiting rod is provided on the lifting frame, and the limiting rod is arranged on a side opposite to the entrance and exit.

[0017] Optionally, the lifting assembly includes a lifting guide rail, a lifting slider, a lifting seat, a screw rod, a nut, a connector and a lifting motor;

[0018] The lifting guide rail is vertically arranged on the frame, the lifting slider is slidably arranged on the lifting guide rail, and the lifting seat is arranged on the lifting slider;

[0019] The screw rod is vertically arranged on the frame, the nut is threadedly connected to the screw rod, the connecting piece is connected to the nut, and the lifting motor is connected to the screw rod to drive the screw rod to rotate;

[0020] The lifting frame is connected to the lifting seat and the connecting member.

[0021] Optionally, the lifting assembly further includes a third sensor, a fourth sensor and a sensing member, the sensing member is connected to the nut, the lifting slider or the lifting seat, and the third sensor and the fourth sensor are arranged on the lifting track of the sensing member to limit the lifting position of the lifting frame.

[0022] Optionally, the lifting assembly further includes a lifting bracket, the lifting bracket including two horizontal beams and two vertical beams, the two horizontal beams are arranged side by side up and down, the two vertical beams are vertically arranged side by side between the two horizontal beams, and the two ends of the two vertical beams are respectively connected to the two horizontal beams;

[0023] The lifting guide rail is arranged on the vertical beam, and the two ends of the screw rod are respectively arranged on the two horizontal beams.

[0024] Optionally, the jig lifter further includes a buffer assembly, which is disposed below the lifting frame and is used for deceleration and buffering of the lifting frame;

[0025] The buffer assembly includes a base and a buffer cylinder, and the buffer cylinder is arranged on the base.

[0026] Optionally, the jig elevator further comprises a guide assembly, wherein the guide assembly and the lifting assembly are respectively located on both sides of the lifting platform in the Y-axis direction;

[0027] The guide assembly includes a guide rail, a guide slider and a guide seat, wherein the guide rail is vertically arranged on the frame, the guide slider is slidably arranged on the guide rail, and the guide seat is connected to the guide slider;

[0028] The lifting platform is arranged on the guide seat.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] The main structure includes a frame, a lifting assembly, and a lifting platform. In the lifting platform, a first sensor and a second sensor sense the position of the jig. When the jig needs to be sent into the lifting frame, the jig partially extends into the conveyor assembly, the first sensor senses the jig, and the conveyor assembly starts to convey the jig into the lifting frame until the second sensor senses the jig. When the jig needs to be sent out of the lifting frame, the conveyor assembly starts and conveys the jig out of the lifting frame until the first sensor loses its sensing of the jig. The lifting platform is set on the lifting assembly, or connected to the lifting assembly, and the lifting assembly drives the lifting platform to perform lifting and lowering movements, so that the conveyor assembly docks with the upper conveyor layer or the lower conveyor layer, and the conveyor assembly sends the jig into the lifting frame, and sends the jig on the lifting frame to the upper conveyor layer or the lower conveyor layer, realizing the flow of jigs between different conveyor layers, thereby automatically moving the jig from the end position to the starting position, improving the automatic flow of jigs on the production line and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural diagram of the jig lifter of the present utility model;

[0032] Figure 2This is an exploded schematic diagram of the jig lifter of the present invention;

[0033] Figure 3 This is a schematic structural diagram of the lifting assembly and lifting platform in the fixture lift of the present invention;

[0034] Figure 4 This is a schematic structural diagram of the transmission component in the jig lift of the present invention;

[0035] Figure 5 It is a structural schematic diagram of the lifting assembly in the fixture lift of the present invention.

[0036] Description of the accompanying drawings:

[0037] 1. Frame;

[0038] 2. Lifting assembly; 21. Lifting guide rail; 22. Lifting slider; 23. Lifting seat; 24. Screw rod; 25. Nut; 26. Connector; 27. Lifting motor; 28. Lifting bracket;

[0039] 3. Lifting platform; 31. Lifting frame; 311. Entrance and exit; 312. Entry and exit passage; 313. Limit rod; 32. Conveyor assembly; 321. Conveyor belt; 322. Driving pulley; 323. Driven pulley; 324. Power element; 325. Transmission mechanism; 326. Wheel plate; 33. First sensor; 34. Second sensor; 35. Tensioning adjustment mechanism;

[0040] 4. Buffer component;

[0041] 5. Guide component. DETAILED DESCRIPTION

[0042] The following is a combination of the appended examples of the present application Figure 1 To the attached Figure 5 , clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of this application.

[0043] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] The present invention provides a jig elevator for lifting and lowering using a jig, wherein the jig can be used to load a vehicle-mounted heater. When the heater is loaded on the jig, the radiator protrudes downward from the jig. Hereinafter, the downwardly protruding portion on the jig can be either the downwardly protruding portion of the jig itself or the downwardly protruding portion of the product loaded thereon, such as a radiator. The jig elevator is connected to a double-layer conveying mechanism, which has two conveying layers with opposite conveying directions. For example, if the upper conveying layer conveys in the positive direction of the X-axis, then the lower conveying layer conveys in the negative direction of the X-axis.

[0046] like Figure 1-3 A jig lift is shown, which includes a frame 1, a lifting component 2, and a lifting platform 3.

[0047] Specifically, the lifting platform 3 includes a lifting frame 31, a conveyor assembly 32, a first sensor 33, and a second sensor 34. The lifting frame 31 is mounted on the lifting assembly 2. The conveyor assembly 32 is mounted on the lifting frame 31 to carry the jig and transport it in and out of the lifting frame 31 along the X-axis. The first sensor 33 and the second sensor 34 are respectively mounted on both ends of the lifting frame 31 along the X-axis to sense the jig and limit its movement in the X-axis. The lifting assembly 2 is mounted on the frame 1 to drive the lifting frame 31 up and down along the Z-axis.

[0048] In the present invention, the main structure includes a frame 1, a lifting assembly 2, and a lifting platform 3. On the lifting platform 3, a first sensor 33 and a second sensor 34 sense the position of the jig. To move the jig into the lifting frame 31, the jig partially extends onto the conveyor assembly 32. The first sensor 33 senses the jig, and the conveyor assembly 32 activates and conveys the jig into the lifting frame 31 until the second sensor 34 senses the jig. To remove the jig from the lifting frame 31, the conveyor assembly 32 activates and conveys the jig out of the lifting frame 31 until the first sensor 33 loses its sensing capability. The lifting platform 3 is set on the lifting component 2, or connected to the lifting component 2, and the lifting component 2 drives the lifting platform 3 to perform lifting movements, so that the conveying component 32 docks with the upper conveying layer or the lower conveying layer, and the conveying component 32 sends the jig into the lifting frame 31, and sends the jig on the lifting frame 31 to the upper conveying layer or the lower conveying layer, so as to realize the flow of jigs on different conveying layers, thereby automatically transporting the jigs from the end position to the starting position, improving the automatic flow effect of the jigs in the production line and reducing production costs.

[0049] In some embodiments of the transport assembly 32, such as Figure 4 As shown, the conveyor assembly 32 includes a conveyor belt 321, a driving pulley 322, a driven pulley 323, a power element 324, a transmission mechanism 325, and two wheel plates 326. The two wheel plates 326 are arranged side by side on either side of the lifting frame 31 in the Y-axis direction, with the driving pulley 322 and the driven pulley 323 respectively located at each end of the wheel plates 326. The conveyor assembly 322 includes two conveyor belts 321, which are respectively wound around the driving pulley 322 and the driven pulley 323 on the two wheel plates 326. A transmission mechanism 325 is disposed on the lifting frame 31 and is connected to the two driving pulleys 322. The power element 324 is connected to the transmission mechanism 325.

[0050] The wheel plate 326 serves as the mounting structure for the driving wheel 322 and the driven wheel 323. Specifically, the driving wheel 322 and the driven wheel 323 are mounted on the outside of each end of the wheel plate 326, with the driven wheel 323 located on the end of the wheel plate 326 closest to the entrance 311 of the lifting frame 31. A transmission mechanism 325 connects both driving wheels 322. The power element 324 transmits power to the transmission mechanism 325, which then transmits it to the two driving wheels 322, thereby driving the conveyor belt 321 and transporting the jigs.

[0051] The power element 324 may specifically be an electric motor or a pneumatic motor.

[0052] Further, if Figure 4 As shown, the transmission assembly 32 further includes a tensioning adjustment mechanism 35 , which is disposed on the wheel plate 326 . The tensioning adjustment mechanism 35 is connected to the driven wheel 323 to adjust the distance between the driven wheel 323 and the driving wheel 322 .

[0053] Specifically, the tension adjustment mechanism 35 comprises a sleeve, a screw, and a bolt seat. The driven wheel 323 is rotatably mounted on the mounting shaft. The wheel plate 326 has a slotted hole extending along the X-axis, through which the mounting shaft extends toward the inside of the wheel plate 326. The bolt seat is located on the inside of the wheel plate 326, close to the mounting shaft. The sleeve fits over the mounting shaft located inside the wheel plate 326. A bolt is threadedly mounted on the bolt seat, with the end of the bolt abutting the sleeve. The position of the mounting shaft can be adjusted by rotating the bolt. Once adjusted, the mounting shaft can be locked with the nut 25.

[0054] In some embodiments of the lifting frame 31, such as Figure 3 As shown, an entrance 311 is provided on one side of the lifting frame 31 in the X-axis direction, and an inlet and outlet passage 312 is provided in the middle of the lifting frame 31, extending along the X-axis. The inlet and outlet passage 312 extends from the entrance 311 to the opposite side to accommodate the downwardly protruding portion of the jig. In this embodiment, the inlet and outlet passage 312 is provided at the entrance 311 of the lifting frame 31, extending to the other side. This provides a passage for the jig and the product on the jig, especially the portion protruding downward from the jig, thereby preventing interference between the jig and the product during transportation.

[0055] In addition, if Figure 3 As shown, a limit rod 313 is provided on the lifting frame 31, and the limit rod 313 is provided on the side opposite to the entrance 311. The limit rod 313 limits the limit position of the jig transmission to prevent the second sensor 34 from malfunctioning and causing the jig to fall during transmission.

[0056] In some embodiments of the lifting assembly 2, such as Figure 3 、 Figure 5 As shown, the lifting assembly 2 includes a lifting guide rail 21 , a lifting slider 22 , a lifting seat 23 , a screw rod 24 , a nut 25 , a connector 26 and a lifting motor 27 .

[0057] Lifting rails 21 are vertically mounted on frame 1, lifting sliders 22 are slidably mounted on lifting rails 21, and lifting base 23 is mounted on lifting sliders 22. Screws 24 are vertically mounted on frame 1, nut 25 is threadedly connected to screws 24, connector 26 is connected to nut 25, and lifting motor 27 is connected to screws 24 to drive them to rotate. Lifting frame 31 is connected to lifting base 23 and connector 26.

[0058] The lifting seat 23 is mounted on the lifting slide 22, which slides with the lifting guide rail 21. This allows the lifting frame 31 to move along with the lifting slide 22, ensuring stable and precise lifting. The screw rod 24, nut 25, connector 26, and lifting motor 27 form the lifting drive structure, which is connected to the lifting frame 31 via the connector 26, thereby driving the lifting frame 31 to move upward and downward.

[0059] Further, if Figure 5 As shown, the lifting assembly 2 also includes a third sensor, a fourth sensor, and a sensing element. The sensing element is connected to the nut 25, the lifting slider 22, or the lifting base 23; the sensor element is shown connected to the lifting base 23. The third and fourth sensors are located along the lifting trajectory of the sensing element to control the lifting position of the lifting platform 31. Specifically, the third and fourth sensors correspond to the upper and lower conveying layers, respectively. When the lifting platform 31 rises to the point where the conveyor assembly 32 is flush with the upper conveying layer, specifically when the upper surface of the conveyor belt 321 is flush with the upper conveying layer, the third sensor senses the sensing element and sends a sensing signal to the controller, which controls the lifting assembly 2 to stop lifting. When the lifting platform 31 descends to the point where the conveyor assembly 32 is flush with the lower conveying layer, specifically when the upper surface of the conveyor belt 321 is flush with the lower conveying layer, the fourth sensor senses the sensing element and sends a sensing signal to the controller, which controls the lifting assembly 2 to stop lifting. In this way, the third and fourth sensors, together with the sensing element, enable the lifting platform 3 to switch between docking at the upper and lower conveying layers.

[0060] Of course, the lifting assembly 2 also includes a fifth sensor, and the position sensed by the fifth sensor is the initial position, or the position where the lifting frame 31 stops during shutdown and maintenance. Specifically, it is the position where the lifting frame 31 descends to be supported by the buffer mechanism below.

[0061] In some further embodiments of the lifting assembly 2, as Figure 3 、 Figure 5 As shown, the lifting assembly 2 also includes a lifting bracket 28, which includes two horizontal beams and two vertical beams. The two horizontal beams are arranged side by side in a vertical manner, and the two vertical beams are vertically arranged side by side between the two horizontal beams. The two vertical beams are connected to the two horizontal beams at their ends. The lifting guide rail 21 is mounted on the vertical beams, and the ends of the screw rod 24 are respectively mounted on the two horizontal beams. The provision of the lifting bracket 28 provides a direct mounting structure for the lifting assembly 2, increasing the installation stability of the lifting assembly 2.

[0062] In some embodiments of the jig lift, such as Figure 2 、 Figure 3 As shown, the jig lift also includes a buffer assembly 4, which is arranged below the lifting frame 31 and is used for deceleration and buffering of the lifting frame 31, reducing the vibration of the lifting platform 3 when it descends to the initial position, so as to facilitate the lifting platform 3 to stop and land smoothly.

[0063] Specifically, if Figure 3 As shown, the buffer assembly 4 includes a base and a buffer cylinder, and the buffer cylinder is arranged on the base.

[0064] In some embodiments of the jig lift, such as Figure 1 、 Figure 2 As shown, the jig lift also includes a guide assembly 5. The guide assembly 5 and the lifting assembly 2 are respectively located on both sides of the Y-axis direction of the lifting platform 3. Specifically, the guide rail and the lifting guide rail 21 are respectively located on both sides of the Y-axis direction of the lifting frame. The guide assembly 5 includes a guide rail, a guide slider and a guide seat. The guide rail is vertically arranged on the frame, the guide slider is slidably arranged on the guide rail, and the guide seat is connected to the guide slider; the lifting platform is arranged on the guide seat. The guide slider can slide up and down along the guide rail, and the guide seat is connected to the guide slider. In this way, the lifting platform can perform lifting motion under the sliding cooperation of the guide slider and the guide rail, and the guide assembly 5 and the lifting assembly 2 are respectively arranged on both sides of the lifting platform 3, supporting and guiding the lifting platform 3 to perform lifting motion from both sides, thereby improving the stability of the lifting platform 3 to perform lifting motion. Of course, in the embodiment of the present utility model, two groups of guide assemblies 5 can be provided.

[0065] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A jig lift, characterized in that: The fixture lift includes a frame, a lifting assembly, and a lifting platform; The lifting platform includes a lifting frame, a conveying assembly, a first sensor and a second sensor. The lifting frame is arranged on the lifting assembly. The conveying assembly is arranged on the lifting frame for carrying the jig and conveying the jig in and out of the lifting frame along the X-axis direction. The first sensor and the second sensor are respectively arranged at both ends of the lifting frame along the X-axis direction, and are respectively used to sense the jig and limit the movement position of the jig in the X-axis direction; The lifting assembly is arranged on the frame and is used to lift the lifting frame along the Z-axis direction.

2. The jig lifter according to claim 1, wherein: The transmission assembly includes a conveyor belt, a driving wheel, a driven wheel, a power element, a transmission mechanism and two wheel plates; The two wheel plates are arranged side by side on both sides of the lifting frame in the Y-axis direction, and the driving wheel and the driven wheel are respectively provided at both ends of the wheel plate; The two conveyor belts are respectively wound around the driving wheel and the driven wheel on the two wheel plates; The transmission mechanism is arranged on the lifting frame, and the transmission mechanism is also connected to the two driving wheels; The power element is connected to the transmission mechanism.

3. The jig lifter according to claim 2, wherein: The transmission assembly further includes a tensioning adjustment mechanism, which is disposed on the wheel plate and connected to the driven wheel to adjust the distance between the driven wheel and the driving wheel.

4. The jig lifter according to claim 1, wherein: An entrance and exit is provided on one side of the lifting frame in the X-axis direction, and an entrance and exit channel extending along the X-axis direction is provided in the middle of the lifting frame. The entrance and exit channel extends from the entrance and exit to the other opposite side to allow the downward protruding part of the fixture to pass through.

5. The jig lifter according to claim 4, characterized in that: The lifting frame is provided with a limiting rod, and the limiting rod is arranged on a side opposite to the entrance and exit.

6. The jig lifter according to claim 1, wherein: The lifting assembly includes a lifting guide rail, a lifting slider, a lifting seat, a screw rod, a nut, a connecting piece and a lifting motor; The lifting guide rail is vertically arranged on the frame, the lifting slider is slidably arranged on the lifting guide rail, and the lifting seat is arranged on the lifting slider; The screw rod is vertically arranged on the frame, the nut is threadedly connected to the screw rod, the connecting piece is connected to the nut, and the lifting motor is connected to the screw rod to drive the screw rod to rotate; The lifting frame is connected to the lifting seat and the connecting member.

7. The jig lifter according to claim 6, wherein: The lifting assembly also includes a third sensor, a fourth sensor and a sensing member, the sensing member is connected to the nut, the lifting slider or the lifting seat, and the third sensor and the fourth sensor are arranged on the lifting track of the sensing member to limit the lifting position of the lifting frame.

8. The jig lifter according to claim 6, wherein: The lifting assembly further includes a lifting bracket, which includes two horizontal beams and two vertical beams. The two horizontal beams are arranged side by side up and down, and the two vertical beams are arranged vertically side by side between the two horizontal beams. The two ends of the two vertical beams are respectively connected to the two horizontal beams. The lifting guide rail is arranged on the vertical beam, and the two ends of the screw rod are respectively arranged on the two horizontal beams.

9. The jig lifter according to claim 1, wherein: The jig lifter further includes a buffer assembly, which is disposed below the lifting frame and is used for deceleration and buffering of the lifting frame; The buffer assembly includes a base and a buffer cylinder, and the buffer cylinder is arranged on the base.

10. The jig lifter according to claim 1, wherein: The jig lifter further includes a guide assembly, wherein the guide assembly and the lifting assembly are respectively located on both sides of the lifting platform in the Y-axis direction; The guide assembly includes a guide rail, a guide slider and a guide seat, wherein the guide rail is vertically arranged on the frame, the guide slider is slidably arranged on the guide rail, and the guide seat is connected to the guide slider; The lifting platform is arranged on the guide seat.

Images