Workpiece lifting-out device

Abstract

The invention discloses a workpiece lifting-out device, relates to the field of vehicle production, and aims to solve the technical problem of low transfer efficiency of a current transfer mode of a vehicle door inner plate component. The workpiece lifting-out device comprises a supporting frame, a sliding base, a first driving piece, a second driving piece, a grabbing arm and a control module. The sliding base is connected with the supporting frame through the first driving piece. The grabbing arm is connected with the sliding seat through a second driving piece; the control module is electrically connected with the first driving piece and the second driving piece. When the workpiece lifting-out device is used, the control module can control the first driving part to drive the sliding base to move to the material taking station so that the grabbing arm can be connected with the workpiece in an inserted mode, the second driving part drives the grabbing arm to move upwards so that the workpiece can be lifted, and then the control module controls the first driving part to drive the sliding base to move to the discharging station so that the workpiece can be lifted out. Workpieces can be automatically transferred, and the transferring efficiency of the workpieces is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle manufacturing, and more particularly to a workpiece lifting device. Background Technology

[0002] In the manufacturing process of automobile doors, the inner door panels are transported by the logistics department to designated process areas via trolleys. The panels are then transferred from the trolleys to workstations where workers assemble them. Currently, the transfer of inner door panels is done manually, resulting in low efficiency. Summary of the Invention

[0003] The purpose of this application is to provide a workpiece lifting device, which aims to solve the technical problem of low transfer efficiency in the current transfer method of car door inner panel parts.

[0004] This application provides a workpiece lifting device, which includes: The support frame, the sliding seat, and the first driving component are provided. The sliding seat is connected to the support frame via the first driving component. The first driving component is adapted to move the sliding seat between the material picking station and the material unloading station. The second drive member and the gripping arm are connected to the sliding seat via the second drive member. The second drive member is adapted to drive the gripping arm to move along a first direction, which is perpendicular to the horizontal plane. The control module is electrically connected to the first drive unit and the second drive unit; The control module controls the first driving component to move the sliding seat to the material picking station so that the gripping arm can be inserted into the insertion hole of the workpiece. The control module controls the second driving component to move the gripping arm upward to lift the workpiece. After the gripping arm lifts the workpiece, the control module controls the first drive component to move the sliding seat to the unloading station.

[0005] In the above solution, when the workpiece lifting device provided in this application is used, the control module can control the first driving component to move the sliding seat to the picking station so that the gripping arm can be inserted with the workpiece. The second driving component drives the gripping arm to move upward to lift the workpiece. After that, the control module controls the first driving component to move the sliding seat to the unloading station, which can realize the automatic transfer of the workpiece and increase the transfer efficiency of the workpiece.

[0006] Optionally, the workpiece lifting device further includes a support base. The first driving component moves to the unloading station, and the control module controls the second driving component to move downward, so that the workpiece is connected to the support base.

[0007] In the above scheme, by setting up a support base to cooperate with the unloading action of the first and second driving components, the workpiece can be automatically and accurately placed at the unloading station without the need for manual assistance in receiving the workpiece, thus further improving the automation level of the device.

[0008] Optionally, the support base is provided with a snap-fit ​​groove, which is adapted to snap-fit ​​with the bottom end of the workpiece.

[0009] In the above solution, the snap-fit ​​groove on the support base is adapted to the bottom end of the workpiece, which can accurately position the workpiece during the unloading process, avoid horizontal displacement of the workpiece after it is placed, and improve the accuracy of the unloading position.

[0010] Optionally, the gripping arm includes a gripping frame and a plurality of probes disposed on the gripping frame. One end of each of the plurality of probes is connected to the gripping frame, and the other end of each of the plurality of probes extends horizontally or extends obliquely upward relative to the horizontal plane. The axes of the plurality of probes are parallel and located in the same plane.

[0011] In the above scheme, multiple probes are arranged in parallel and coplanar positions, which can be simultaneously inserted into the corresponding insertion holes of the workpiece. The probes adopt a structure that extends horizontally or tilts upward, and can form a stable support after being inserted into the insertion holes, so as to prevent the workpiece from shaking or falling off during the hoisting process and ensure the stability of the gripping.

[0012] Optionally, the gripping arm includes multiple support arms, one end of each support arm is connected to the gripping frame, and the other end of each support arm is adapted to support the side of the workpiece.

[0013] In the above solution, after the probe arm is connected to the workpiece, it can be supported on the side of the workpiece by the support arm to avoid the workpiece from tipping over or shifting during the hoisting process, thereby improving the stability of the workpiece gripping.

[0014] Optionally, the other end of the support arm is provided with a first buffer pad.

[0015] In the above solution, by setting a first buffer pad at the other end of the support arm, the first buffer pad can provide cushioning for the contact between the support arm and the side of the workpiece, and the first buffer pad can prevent the support arm from causing scratches, indentations or other damage to the side of the workpiece.

[0016] Optionally, the workpiece lifting device further includes a guide member, through which the gripping arm slides in a direction perpendicular to the horizontal plane with the sliding seat.

[0017] In the above scheme, the guide component can guide the movement of the gripping arm, prevent the gripping arm from deviating in the direction of movement, and the guide component can share the lateral load generated when the gripping arm lifts the workpiece, reduce the stress on the second drive component, prevent the drive component from being damaged due to off-center load, and ensure the stability of the device operation.

[0018] Optionally, the guide includes a guide rod connected to the gripping arm, the guide rod extending in a direction perpendicular to the horizontal plane, and the sliding seat having a guide hole that slides with the guide rod.

[0019] In the above scheme, the sliding fit structure of the guide rod and the guide hole can form a precise linear constraint on the lifting and lowering movement of the gripper arm, avoiding deflection or swaying of the gripper arm during vertical movement, and further improving the alignment accuracy of picking up and unloading materials. The arrangement of the guide rod extending in the vertical direction can efficiently bear and transmit the lateral load when the gripper arm lifts the workpiece, reduce the off-center load on the second drive component, and ensure the structural reliability of the device during long-term high-frequency operation.

[0020] Optionally, the support frame includes a top support and two side supports, the top support is connected to the top ends of the two side supports, the sliding seat is slidably engaged with the top support, and the sliding direction of the sliding seat is parallel to the horizontal plane.

[0021] In the above scheme, the support frame adopts a frame structure with top support and two side supports to form a portal frame. The overall structure is rigid and has a high load-bearing capacity. It can stably support the weight of the sliding seat and the gripping arm, preventing the device from shaking or deforming during heavy lifting. In addition, the portal frame can provide clearance space for the movement of workpieces, reducing additional space occupation.

[0022] Optionally, the support frame further includes a base plate, which is connected to the bottom ends of the two side supports. The base plate is provided with a positioning slider, which is adapted to slide into a positioning groove at the bottom of the workpiece's support frame. The extending direction of the positioning slider is parallel to the moving direction of the sliding seat.

[0023] In the above scheme, the support frame for carrying the workpiece can slide between the two side supports. Workpieces close to the worker can be manually picked up by the worker without the aid of the gripping arm, while workpieces far from the worker are arranged at the bottom of the top support, which facilitates the gripping arm to pick up the workpieces on the support frame, increasing the convenience of operation and the accuracy of the gripping arm's gripping and positioning. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a workpiece lifting device provided in an embodiment of this application when lifting a workpiece; Figure 2 This is a schematic diagram of the structure of a workpiece lifting device provided in an embodiment of this application when the workpiece is placed on a support base; Figure 3 This is a schematic diagram of the structure of a workpiece lifting device when it is separated from the workpiece, as provided in an embodiment of this application. Figure 4 This is a partial schematic diagram of a workpiece lifting device provided in an embodiment of this application.

[0026] Explanation of reference numerals in the attached figures: 1. Support frame; 11. Top support; 12. Side support; 2. Sliding seat; 3. First driving component; 4. Second driving component; 5. Gripping arm; 51. Gripping frame; 52. Probe arm; 53. Support arm; 6. Support seat; 7. Workpiece. Detailed Implementation

[0027] In the embodiments of this application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of that feature.

[0028] In embodiments of this application, 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 a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0029] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0030] In the embodiments of this application, "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, where the range of similarity is within an acceptable deviation range, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, where the acceptable deviation range for approximate equality can be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0031] Combination Figure 1 and Figure 4 As shown in the figure, this application embodiment provides a workpiece lifting device, which includes a support frame 1, a sliding seat 2, a first driving member 3, a second driving member 4, a gripping arm 5, and a control module. The sliding seat 2 is connected to the support frame 1 through the first driving member 3, so that the first driving member 3 drives the sliding seat 2 to move. The moving direction of the sliding seat 2 is parallel to the horizontal plane, or there is a certain angle between the moving direction of the sliding seat 2 and the horizontal plane, which is not limited. The first driving member 3 is adapted to drive the sliding seat 2 to move between the material picking station and the material unloading station. The gripping arm 5 is connected to the sliding seat 2 through the second driving member 4, and the second driving member 4 is adapted to drive the gripping arm 5 to move along a first direction, which is perpendicular to the horizontal plane. The gripping arm 5 can engage with or disengage from the insertion hole of the workpiece 7 during horizontal movement. The control module is electrically connected to the first driving member 3 and the second driving member 4. The control module controls the first drive component 3 to move the sliding seat 2 to the material handling station, so that the gripping arm 5 can be inserted into the insertion hole of the workpiece 7. The control module then controls the second drive component 4 to move the gripping arm 5 upward to lift the workpiece 7. After the gripping arm 5 lifts the workpiece 7, the control module controls the first drive component 3 to move the sliding seat 2 to the unloading station. The workpiece 7 at this location includes a car door inner panel, and the insertion hole is an opening corresponding to the car window. After the gripping arm 5 is inserted into the opening, it is lifted so that the gripping arm 5 overlaps the top inner wall of the opening.

[0032] When using, combine Figure 1 and Figure 4As shown, the control module controls the second drive component 4 to move the gripping arm 5 downwards, so that the gripping arm 5 is positioned horizontally relative to the insertion hole, or, when the diameter of the insertion hole is larger than the diameter of the gripping arm 5, the gripping arm 5 is located below the top wall of the insertion hole. The control module controls the first drive component 3 to move the sliding seat 2 and its connected second drive component 4 and gripping arm 5 toward the workpiece 7, so that the gripping arm 5 is inserted into the insertion hole of the workpiece 7. The control module controls the second drive component 4 to move the gripping arm 5 upwards to lift the workpiece 7. After the gripping arm 5 lifts the workpiece 7, the control module controls the first drive component 3 to move the sliding seat 2 to the unloading position.

[0033] In this embodiment, the control module can control the first driving member 3 and the second driving member 4 to move along a preset path, thereby moving the gripping arm 5 to a designated workstation for gripping or lowering the workpiece 7. Alternatively, the workpiece lifting device includes multiple proximity switches. When the control module controls the first driving member 3 and the second driving member 4 to move the gripping arm 5 to the corresponding workstation, they contact the proximity switches, triggering the switches to provide feedback to the control module. The control module then controls the first driving member 3 and the second driving member 4 to move the gripping arm 5 to the next workstation. For example, the limit switches include a first limit switch, a second limit switch, a third limit switch, and a fourth limit switch.

[0034] The first limit switch is set on the second drive component 4 or the gripping arm 5. After the workpiece lifting device is working, the control module controls the second drive component 4 to drive the gripping arm 5 to move downward until the first limit switch on the second drive component 4 is triggered. Then, the control module controls the second drive component 4 to stop moving.

[0035] The second limit switch is set on the gripping arm 5. After the first limit switch is triggered, the control module controls the first driving component 3 to drive the sliding seat 2 to move toward the workpiece 7 until the second limit switch contacts the workpiece 7. Then, the control module controls the first driving component 3 to stop moving. At this time, the gripping arm 5 and the workpiece 7 are engaged.

[0036] The third limit switch is set on the second drive unit 4 or the gripping arm 5. After the second limit switch is triggered, the control module controls the second drive unit 4 to drive the gripping arm 5 to move upward until the third limit switch is triggered, the workpiece 7 is lifted, and the control module controls the second drive unit 4 to stop moving.

[0037] The fourth limit switch is set on the support frame 1 or the sliding seat 2. When the fourth limit switch is triggered, the control module controls the first driving component 3 to drive the sliding seat 2 to move in the direction away from the workpiece 7 until the fourth limit switch is triggered, and the control module controls the first driving component 3 to stop moving.

[0038] When the workpiece lifting device provided in this embodiment is used, the control module can control the first driving member 3 to move the sliding seat 2 to the material picking station so that the gripping arm 5 can be inserted with the workpiece 7. The second driving member 4 drives the gripping arm 5 to move upward to lift the workpiece 7. Then, the control module controls the first driving member 3 to move the sliding seat 2 to the unloading station, which can realize the automatic transfer of the workpiece 7 and increase the transfer efficiency of the workpiece 7.

[0039] In some implementations, combined Figure 1 and Figure 4 As shown, the workpiece lifting device also includes a support base 6. The first drive component 3 moves to the unloading station, and the control module controls the second drive component 4 to move downward, so that the workpiece 7 connects with the support base 6. After the workpiece 7 is connected to the support base 6, the control module controls the first drive component 3 to move in a direction away from the workpiece 7, so that the gripping arm 5 disengages from the workpiece 7. When the gripping arm 5 disengages from the workpiece 7, the control module controls the second drive component 4 to drive the gripping arm 5 to move upward, preparing for the next gripping of the workpiece 7.

[0040] In this design, by setting up a support base 6 in conjunction with the unloading action of the first driving component 3 and the second driving component 4, the workpiece 7 can be automatically and accurately positioned at the unloading station without the need for manual assistance in receiving the workpiece 7, thus further improving the automation level of the device.

[0041] In some embodiments, the support base 6 is provided with a snap-fit ​​groove, which is adapted to snap-fit ​​with the bottom end of the workpiece 7. The support base 6 includes a support base and multiple support blocks disposed on top of the support base, spaced apart from each other. Each support block has a snap-fit ​​groove on its top.

[0042] In this design, the snap-fit ​​groove on the support base 6 is adapted to the bottom end of the workpiece 7, which can accurately position the workpiece 7 during the unloading process, avoid the horizontal displacement of the workpiece 7 after it is placed, and improve the accuracy of the unloading position.

[0043] In some implementations, the limit switches include a fifth limit switch, a sixth limit switch, a seventh limit switch, and an eighth limit switch.

[0044] The fifth limit switch is located on the second drive unit 4 or the gripping arm 5, and the sixth limit switch is located on the support base 6. When the fourth limit switch is triggered, as... Figure 2 As shown, the control module controls the second drive component 4 to move the gripping arm 5 downward until the fifth limit switch and the sixth limit switch are triggered simultaneously. At this time, the control module controls the second drive component 4 to stop working, and the workpiece 7 is placed on the support base 6.

[0045] like Figure 3As shown, the seventh limit switch is set on the sliding seat 2 or the support frame 1. After the fifth limit switch and the sixth limit switch are triggered, the controller controls the first driving component 3 to move the sliding seat 2 away from the workpiece 7, so that the gripping arm 5 is separated from the workpiece 7, until the seventh limit switch is triggered, and the control module controls the first driving component 3 to stop working.

[0046] The eighth limit switch is set on the second drive unit 4 or the gripping arm 5. When the seventh limit switch is triggered, the second drive unit 4 drives the gripping arm 5 to move upward until the eighth limit switch is triggered, indicating that the workpiece lifting device has returned to the initial state, and the control module controls the second drive unit 4 to stop working.

[0047] In some embodiments, the gripping arm 5 includes a gripping frame 51 and a plurality of probe arms 52 disposed on the gripping frame 51. The gripping frame 51 is connected to the second drive member 4. One end of each of the plurality of probe arms 52 is connected to the gripping frame 51. The connection method between one end of the probe arm 52 and the gripping frame 51 can be threaded, bolted, or welded, etc., without limitation. The other end of the plurality of probe arms 52 extends horizontally or extends obliquely upward relative to the horizontal plane. The axes of the plurality of probe arms 52 are parallel and located in the same plane, so that the probe arms 52 can be inserted into the insertion hole of the workpiece 7. The plurality of probe arms 52 are spaced apart along a horizontal direction and perpendicular to the extension direction of the probe arms 52.

[0048] In some examples, the top of the probe arm 52 is provided with a second buffer pad, which may include a rubber pad, a silicone pad, or a polyurethane pad, etc., without limitation. The second buffer pad can provide cushioning for the contact between the probe arm 52 and the workpiece 7, and can prevent the probe arm 52 from causing scratches, indentations, or other damage to the overlapping position of the workpiece 7.

[0049] In this design, multiple probe arms 52 are arranged in parallel and coplanar positions, and can be inserted into the corresponding insertion holes of the workpiece 7 at the same time. The probe arms 52 adopt a structure that extends horizontally or tilts upward, and can form a stable support after being inserted into the insertion hole, so as to prevent the workpiece 7 from shaking or falling off during the hoisting process and ensure the stability of the gripping.

[0050] In some implementations, such as Figure 4 As shown, the gripping arm 5 includes multiple support arms 53. The support arms 53 extend horizontally or at a certain angle to the horizontal direction, which is unrestricted. One end of each support arm 53 is connected to the gripping frame 51, and the connection method can be threaded, bolted, or welded, etc., without restriction. The other end of the multiple support arms 53 is adapted to support the side of the workpiece 7. The other end of the support arm 53 can be planar or have a structure that matches the position of the workpiece 7 to be supported, without restriction.

[0051] With this design, after the probe arm 52 is connected to the workpiece 7, it can be supported on the side of the workpiece 7 by the support arm 53, so as to avoid the workpiece 7 from tipping over or shifting during the hoisting process and improve the stability of the workpiece 7 in the gripping process.

[0052] In some examples, the other end of the support arm 53 is provided with a first buffer pad, which may include a rubber pad, a silicone pad, or a polyurethane pad, etc., without limitation.

[0053] In this design, by setting a first buffer pad at the other end of the support arm 53, the first buffer pad can provide buffer for the contact between the support arm 53 and the side of the workpiece 7, and the first buffer pad can prevent the support arm 53 from causing scratches, indentations and other damage to the side of the workpiece 7.

[0054] In some implementations, reference continues. Figure 4 The gripping frame 51 includes a horizontal bar and two first vertical bars. The horizontal bar is connected to the second drive member 4, and its extension direction is parallel to both the horizontal plane and the extension direction of the probe arm 52. The two first vertical bars are spaced apart at the bottom of the horizontal bar along its length. The first vertical bars can be connected to the horizontal bar by bolts or welding, without limitation. There are two probe arms 52, each connected to one of the first vertical bars. The connection method between the probe arm 52 and the first vertical bar can be bolted, threaded, or welded, without limitation. The gripping frame 51 also includes two second vertical bars and two diagonal braces. The two second vertical bars are respectively connected to the two ends of the horizontal bar, and the two first vertical bars are located between the two second vertical bars. One diagonal brace connects between one first vertical bar and the second vertical bar, and the other diagonal brace connects between the other first vertical bar and the second vertical bar. There are two support arms 53, each connected to one of the two second vertical bars.

[0055] In this design, the gripping frame 51 adopts a frame structure composed of a horizontal bar, a first vertical bar, a second vertical bar, and diagonal braces. It has high overall rigidity and load-bearing capacity, and can effectively transmit the lifting force of the second driving component 4, preventing the gripping frame 51 from deforming when lifting the workpiece 7 and ensuring the stability of the gripping action. The first vertical bar is connected to the probe arm 52, and the second vertical bar is connected to the support arm 53, realizing the partitioned arrangement of the probe arm 52 and the support arm 53. It can simultaneously accommodate the gripping of the insertion hole of the workpiece 7 and the side support 12. The diagonal braces transmit the force of the first vertical bar and the second vertical bar to the horizontal bar, so that the load is evenly distributed on the gripping frame 51, reducing local stress concentration and extending the service life of the gripping frame 51.

[0056] In some embodiments, the workpiece lifting device further includes a guide, through which the gripping arm 5 slides in a direction perpendicular to the horizontal plane with the sliding seat 2.

[0057] In this design, the guide component can guide the movement of the gripping arm 5, preventing the gripping arm 5 from deviating in the direction of movement. The guide component can also share the lateral load generated when the gripping arm 5 lifts the workpiece 7, reducing the stress on the second drive component 4, preventing the drive component from being damaged due to off-center load, and ensuring the stability of the device operation.

[0058] In some embodiments, the guide includes a guide rod connected to the gripping arm 5, wherein there are two guide rods, which are respectively connected to the top of both ends of the crossbar. The guide rods extend in a direction perpendicular to the horizontal plane. The sliding seat 2 is provided with a guide hole that slides with the guide rod. The guide hole extends in a direction perpendicular to the horizontal plane.

[0059] In this design, the sliding fit structure of the guide rod and the guide hole can form a precise linear constraint on the lifting and lowering movement of the gripping arm 5, avoiding deflection or swaying of the gripping arm 5 during vertical movement, and further improving the alignment accuracy of picking up and unloading materials. The arrangement of the guide rod extending in the vertical direction can efficiently bear and transmit the lateral load when the gripping arm 5 lifts the workpiece 7, reduce the off-center load on the second drive component 4, and ensure the structural reliability of the device during long-term high-frequency operation.

[0060] In other embodiments, the guide includes a guide rod connected to the sliding seat 2, the guide rod extending in a direction perpendicular to the horizontal plane, and the gripping arm 5 is provided with a guide hole that slides with the guide rod, the guide hole extending in a direction perpendicular to the horizontal plane.

[0061] As can be seen, the design of guide components is not restricted and can be designed according to actual needs.

[0062] In some embodiments, the support frame 1 includes a top support 11 and two side supports 12. The top support 11 is connected to the top ends of the two side supports 12, and the connection method can be bolted or welded, etc., without limitation. The sliding seat 2 is slidably engaged with the top support 11, and the sliding direction of the sliding seat 2 is parallel to the horizontal plane. The top support 11 is provided with a slide rail, and the sliding seat 2 is provided with a slider. The cooperation between the slider and the slide rail guides the sliding of the sliding seat 2.

[0063] In this design, the support frame 1 adopts a frame structure with a top support 11 and two side supports 12 to form a portal frame. The overall structure is rigid and has a high load-bearing capacity, which can stably support the weight of the sliding seat 2 and the gripping arm 5, preventing the device from shaking or deforming during heavy lifting. In addition, the portal frame can provide clearance space for the movement of the workpiece 7, reducing additional space occupation.

[0064] In some embodiments, the support frame 1 further includes a base plate, which is connected to the bottom ends of the two side supports 12. The connection method can be bolted or welded, and there are no restrictions. The base plate is provided with a positioning slider, which is adapted to slide in engagement with the positioning groove at the bottom of the support frame of the workpiece 7. The extension direction of the positioning slider is parallel to the movement direction of the sliding seat 2. The base plate is also provided with a positioning block, which is located at one end of the base plate near the unloading station of the sliding seat 2.

[0065] In use, the carrier frame is moved to the position corresponding to the support frame 1 by means of a forklift, pallet jack, or other means, or the carrier frame itself moves the workpiece 7 to the position corresponding to the support frame 1. At this time, the positioning slider and the positioning groove are opposite each other, pushing the carrier frame so that the carrier frame moves between the two side supports 12 until the end of the carrier frame contacts the positioning block, thus completing the positioning of the carrier frame. At this time, the workpiece 7 close to the worker can be picked up manually by the worker without the help of the gripping arm 5, while the workpiece 7 far away from the worker can be automatically gripped by the gripping arm 5 to move it to the vicinity of the worker.

[0066] In this design, the support frame for carrying the workpiece 7 can slide between the two side supports 12. The workpiece 7 close to the worker can be manually picked up by the worker without the help of the gripping arm 5, while the workpiece 7 far away from the worker is arranged at the bottom of the top support 11, which facilitates the gripping arm 5 to grip the workpiece 7 on the support frame, increasing the convenience of operation and the accuracy of gripping and positioning of the gripping arm 5.

[0067] In some embodiments, the first driving member 3 includes a screw, a motor, and a slide. The motor is mounted on the top support 11 and the screw extends horizontally. The motor is used to drive the screw to rotate. The slide is threadedly engaged with the screw and slidably engaged with the top support 11. The slide is connected to the sliding seat 2. In this design, the screw is driven to rotate by the motor, thereby realizing the linear movement of the slide, so that the sliding seat 2 can be driven to move in the horizontal direction.

[0068] In other embodiments, the first driving member 3 includes a motor mounted on the sliding seat 2. The motor's output shaft has a drive wheel, which drives the drive wheel to rotate, causing it to move on the top support 11, thereby moving the sliding seat 2. The drive wheel is a gear, and the top support 11 has a rack; the gear meshes with the rack to increase stability during movement.

[0069] It is evident that the design of the first driving component 3 is unrestricted and can be designed according to actual needs.

[0070] In some embodiments, the sliding seat 2 adopts a frame structure, and the first driving component 3 is connected to the sliding seat 2. The connection method can be bolted or welded, etc., without limitation. The bottom of the sliding seat 2 is provided with a slider, and the top support 11 is provided with a slide rail. The sliding connection of the sliding seat 2 is realized through the slider and the slide rail, so as to guide the movement of the sliding seat 2 and increase the smoothness of the movement of the sliding seat 2.

[0071] In some embodiments, the second drive element 4 includes a cylinder disposed on the sliding seat 2, the lever of the cylinder extending vertically downward for connecting the crossbar of the gripping arm 5.

[0072] In this design, a cylinder is used as the second driving component 4, which has the characteristics of fast response speed and smooth lifting action. It can quickly complete the lifting action of the gripping arm 5 and shorten the operation cycle of picking up and unloading the workpiece 7.

[0073] It is understood that in other embodiments, the second drive component 4 may include a hydraulic cylinder or an electric push rod, etc., without limitation, and may be designed according to actual needs.

[0074] In the description of the embodiments of this application, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0075] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A workpiece lifting device, characterized in that, include: The support frame (1), the sliding seat (2) and the first driving member (3) are provided. The sliding seat (2) is connected to the support frame (1) through the first driving member (3). The first driving member (3) is adapted to drive the sliding seat (2) to move between the material picking station and the material unloading station. The second drive member (4) and the gripping arm (5) are connected to the sliding seat (2) through the second drive member (4). The second drive member (4) is adapted to drive the gripping arm (5) to move along a first direction, which is perpendicular to the horizontal plane. A control module, which is electrically connected to the first drive unit (3) and the second drive unit (4); The control module controls the first drive member (3) to drive the sliding seat (2) to move to the material picking station so that the gripping arm (5) is inserted into the insertion hole of the workpiece (7). The control module controls the second drive member (4) to drive the gripping arm (5) to move upward to lift the workpiece (7). After the gripping arm (5) lifts the workpiece (7), the control module controls the first drive component (3) to move the sliding seat (2) to the unloading station.

2. The workpiece lifting device according to claim 1, characterized in that, The workpiece lifting device also includes a support base (6). The first driving component (3) moves to the unloading station, and the control module controls the second driving component (4) to move downward, so that the workpiece (7) is connected to the support base (6).

3. The workpiece lifting device according to claim 2, characterized in that, The support base (6) is provided with a snap-fit ​​groove, which is suitable for snapping with the bottom end of the workpiece (7).

4. The workpiece lifting device according to claim 1, characterized in that, The gripping arm (5) includes a gripping frame (51) and a plurality of probe arms (52) disposed on the gripping frame (51). One end of each of the plurality of probe arms (52) is connected to the gripping frame (51), and the other end of each of the plurality of probe arms (52) extends horizontally or extends upward relative to the horizontal plane. The axes of the plurality of probe arms (52) are parallel and located in the same plane.

5. The workpiece lifting device according to claim 4, characterized in that, The gripping arm (5) includes multiple support arms (53), one end of each of the multiple support arms (53) is connected to the gripping frame (51), and the other end of each of the multiple support arms (53) is adapted to support the side of the workpiece (7).

6. The workpiece lifting device according to claim 5, characterized in that, The other end of the support arm (53) is provided with a first buffer pad.

7. The workpiece lifting device according to claim 1, characterized in that, The workpiece lifting device also includes a guide, and the gripping arm (5) slides in a direction perpendicular to the horizontal plane with the sliding seat (2) through the guide.

8. The workpiece lifting device according to claim 7, characterized in that, The guide includes a guide rod connected to the gripping arm (5), the guide rod extends in a direction perpendicular to the horizontal plane, and the sliding seat (2) is provided with a guide hole that slides with the guide rod.

9. The workpiece lifting device according to claim 1, characterized in that, The support frame (1) includes a top support (11) and two side supports (12). The top support (11) is connected to the top of the two side supports (12). The sliding seat (2) is slidably engaged with the top support (11). The sliding direction of the sliding seat (2) is parallel to the horizontal plane.

10. The workpiece lifting device according to claim 9, characterized in that, The support frame (1) also includes a base plate, which is connected to the bottom end of the two side supports (12). The base plate is provided with a positioning slider, which is adapted to slide into the positioning groove at the bottom of the support frame of the workpiece (7). The extension direction of the positioning slider is parallel to the movement direction of the sliding seat (2).

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