High-stability workpiece feeding and discharging mechanism

Abstract

The invention provides a high-stability workpiece feeding and discharging mechanism. The high-stability workpiece feeding and discharging mechanism comprises a feeding and discharging guide rail, a feeding and discharging station, a feeding station and a discharging station. The feeding and discharging device comprises a moving seat which is arranged on the feeding and discharging guide rail in a sliding mode and used for bearing corresponding workpieces, a lower driving piece connected between the moving seat and a moving driving device, an upper driving piece which is connected with the lower driving piece and can ascend and descend vertically and move transversely, and a clamping and holding device which is connected with the upper driving piece and located above the moving seat. The clamping device comprises a clamping piece which is driven by the clamping driving device and used for clamping the workpiece, a limiting structure used for limiting the workpiece is arranged on the moving seat, and the moving driving device is used for driving the lower driving piece and the upper driving piece to drive the moving seat and the clamping piece to move along the feeding and discharging guide rail together. The stroke and duration of clamping the workpiece in a suspended mode through the clamping piece are shortened, the risk that the workpiece slides down and is damaged during feeding and discharging is reduced to the maximum extent, the workpiece feeding and discharging stability of the feeding and discharging mechanism is improved, and the yield of workshop production is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of workpiece loading and unloading mechanisms, and specifically refers to a highly stable workpiece loading and unloading mechanism. Background Art

[0002] When producing pulley workpieces in a workshop, a workpiece loading and unloading mechanism is required to move the workpiece blanks to the processing station for processing. The processing station can perform spinning processing on the outer wall of the workpiece blanks to form several grooves. In existing workshops, the relatively mature workpiece loading and unloading mechanisms are generally robotic arms, which are used to grab the workpiece blanks on the feeding conveyor line and place them on the processing station for processing. After the processing station finishes processing the workpiece, it grabs the workpiece finished product and places it on the discharging conveyor line for output.

[0003] However, loading the workpiece blanks and unloading the workpiece finished products by a robotic arm will greatly increase the loading and unloading costs. Moreover, when the robotic arm grabs and loads / unloads the workpiece blanks or workpiece finished products, it mainly relies on the clamping force of the clamping jaws and the friction force between the clamping jaws and the outer wall of the workpiece to prevent it from falling. This traditional way of grabbing and loading / unloading has the risk of the workpiece falling and being damaged or the clamping force of the clamping jaws being too large and damaging the workpiece in the case of a relatively heavy workpiece and a relatively long handling distance. Especially for the workpiece finished products, once damaged, they become waste products, resulting in a decrease in the yield rate of the workshop production.

[0004] Designing a highly stable workpiece loading and unloading mechanism for solving the above problems existing in the prior art is the research purpose of the present invention. Summary of the Invention

[0005] The present invention provides a highly stable workpiece loading and unloading mechanism, which can effectively solve the above problems.

[0006] The present invention is implemented as follows: A highly stable workpiece loading and unloading mechanism, comprising: A loading and unloading guide rail, including a loading and unloading station corresponding to the spacing of the corresponding processing station, as well as a feeding station and a discharging station; A loading and unloading device, including a moving seat slidably disposed on the loading and unloading guide rail and used for receiving the corresponding workpiece, a lower driving member connected between the moving seat and a moving driving device, an upper driving member connected to the lower driving member and driven by a lifting driving device to move up and down and driven by a telescopic driving device to move horizontally, a clamping device connected to the upper driving member and located above the moving seat. The clamping device includes a clamping member driven by a clamping driving device for clamping the workpiece. A limiting structure for limiting the workpiece is provided on the moving seat. The moving driving device is used to drive the lower driving member and the upper driving member to drive the moving seat and the clamping member to move along the loading and unloading guide rail together; When the workpiece is located on the moving seat, the limiting structure limits the workpiece, and the clamping member clamps the workpiece; When the moving seat slides to the loading and unloading station, the clamping member is used to clamp the workpiece on the moving seat to the processing station or to clamp the workpiece on the processing station to the moving seat.

[0007] Further, the loading and unloading guide rail is arc-shaped and the opening faces away from the processing station. The loading and unloading station is located in the middle of the loading and unloading guide rail. The feeding station and the discharging station are symmetrically located on both sides of the loading and unloading station. The moving driving device includes a rotating seat driven by a telescopic oil cylinder. There are two sets of loading and unloading devices, namely a loading mechanism and a unloading mechanism which are arranged at an angle to each other; the rotating seat is used to drive the moving seats of the loading mechanism and the unloading mechanism to slide to the feeding station and the loading and unloading station respectively, or to drive the moving seats of the loading mechanism and the unloading mechanism to slide to the loading and unloading station and the discharging station respectively.

[0008] Further, the loading and unloading guide rail is semi-circular. The bottom of the moving seat is limited and rolled by a number of laterally rotating limiting rollers and clamped on the outer walls on both sides of the loading and unloading guide rail. The loading and unloading station is located in the middle of the loading and unloading guide rail. The feeding station and the discharging station are respectively located at both ends of the loading and unloading guide rail.

[0009] Further, the tops of the moving seats of the loading mechanism and the unloading mechanism are both recessed with a limiting groove with an opening on one side for inputting and outputting workpieces. The limiting structure includes the limiting groove.

[0010] Further, the limiting structure further includes a pressure sensor arranged in the limiting groove and an electromagnet arranged in the moving seat and used for electromagnetic suction of the workpiece.

[0011] Further, a perforation is vertically penetrated through the middle of the workpiece. The clamping device further includes a driving seat connecting the upper driving member. The number of the clamping members is two. The clamping driving device is arranged in the driving seat and the two driving ends respectively pass through the driving seat through a number of sliding rods and then connect the upper ends of the two clamping members. A buffer spring is sleeved on the sliding rod and abuts between the driving seat and the clamping member. The two clamping members are vertically plate-shaped and anti-slip layers adapted to the outer wall radian of the workpiece are arranged on the opposite sides.

[0012] Further, a gasbag vertically extending and having an outer diameter smaller than the inner diameter of the through hole is fixedly provided in the middle of the bottom of the driving seat, and extrusion members extending towards each other are respectively protruded on the opposite sides of the two clamping members; when the upper driving member moves to the position where the gasbag extends into the through hole of the workpiece and the two clamping members correspond to the outer wall of the workpiece, the clamping driving device drives the two clamping members to clamp on the outer wall of the workpiece, and the two extrusion members move towards each other to squeeze the upper part of the gasbag, so that the lower part of the gasbag bulges and tightly adheres to the inner wall of the through hole.

[0013] Further, the extrusion member is in the shape of a plate extending horizontally, and a squeezing portion corresponding to and adapted to the outer wall of the upper part of the gasbag is recessed on the opposite sides of the two extrusion members, and flexible layers are provided on both of the two squeezing portions.

[0014] Further, the upper driving member and the lower driving member are arranged at an interval and in parallel up and down, a lifting seat is arranged between the upper driving member and the lower driving member, one end of the lifting seat extends horizontally to form a sliding sleeve for horizontally and slidably inserting the upper driving member, and the other end is turned downwards and slidably connected to the top of the lower driving member. The lifting driving device is arranged on the top of the lower driving member and is used for driving the lifting seat to lift up and down, and the telescopic driving device is arranged in the sliding sleeve and is used for driving the upper driving member to move horizontally.

[0015] Further, the moving driving device further includes a base for rotatably mounting the rotating seat. The middle of the bottom of the lower driving member is rollingly supported on the base by a support roller, and a support cylinder vertically coaxial with the support roller is provided in the middle of the top. A sleeve vertically extending and slidably sleeved outside the support cylinder is provided in the middle of the bottom of the lower driving member, and a support spring with the upper and lower ends abutted between the sliding sleeve and the lower driving member is provided in the support cylinder.

[0016] The beneficial effects of the present invention are: 1. During the loading and unloading process of the workpiece: When the workpiece is located on the moving seat, the limiting structure sets a limit for the workpiece, the clamping member clamps the workpiece, and the moving drive device drives the lower drive member and the upper drive member to drive the moving seat and the clamping member to move along the loading and unloading guide rail together. Thus, through the limiting structure of the moving seat and the clamping member, the workpiece is doubly fixed, enabling the upper drive member and the lower drive member to stably drive the rotating seat and the workpiece to move along the loading and unloading guide rail to the loading and unloading station. During this period, due to the supporting and limiting effect of the moving seat, the clamping member does not grip and transport the workpiece in a suspended state, so there is no risk of the workpiece slipping and being damaged between the clamping members, which can greatly improve the stability of loading and unloading the workpiece to the loading and unloading station. On this basis, when the moving seat slides to the loading and unloading station, the clamping member is used for vertical lifting and lateral movement to clamp the workpiece on the moving seat to the processing station or to clamp the workpiece on the processing station to the moving seat. Thus, the clamping member only needs to perform a short-stroke suspended clamping of the workpiece between the spaced loading and unloading stations and the processing station, greatly shortening the stroke and duration of the clamping member's suspended clamping of the workpiece, minimizing the risk of the workpiece slipping and being damaged between the clamping members during loading and unloading, and this setting can appropriately reduce the clamping force of the clamping member, avoiding damage to the workpiece due to excessive clamping force, improving the stability of the loading and unloading mechanism for loading and unloading the workpiece, and ensuring the good product rate of the workshop production.

[0017] 2. When the moving seats of the loading mechanism and the unloading mechanism driven by the rotating seat slide to the feeding station and the loading and unloading station respectively, the feeding mechanism inputs the next-level workpiece blank to the moving seat of the loading mechanism, and the clamping member of the unloading mechanism clamps the finished product of the previous-level workpiece on the processing station to the moving seat of the unloading mechanism. When the moving seats of the loading mechanism and the unloading mechanism driven by the rotating seat slide to the loading and unloading station and the discharging station respectively, the clamping member of the loading mechanism clamps the next-level workpiece blank on the moving seat to the processing station, and the discharging mechanism outputs the finished product of the previous-level workpiece located on the moving seat of the unloading mechanism. Thus, by setting the loading and unloading guide rail as an arc, not only can the moving efficiency of the moving seat be improved, but also the floor area of the moving drive device can be reduced, and the structural compactness can be improved. Through the division of labor and cooperation of the moving seats of the loading mechanism and the unloading mechanism, during one rotation of the moving drive device driving the loading mechanism and the unloading mechanism, the unloading and discharging of the finished product of the previous-level workpiece and the feeding and loading of the next-level workpiece blank can be realized, greatly reducing the waiting time for workpiece feeding, discharging, loading and unloading. While reducing the working energy consumption of the loading and unloading device, the working efficiency is also improved, greatly enhancing the loading and unloading efficiency of the workpiece.

[0018] 3. When the moving seat of the loading mechanism moves to the feeding station, the corresponding feeding mechanism inputs the workpiece blank into the limiting groove. When the moving seat of the unloading mechanism moves to the discharging station, the corresponding discharging mechanism outputs the workpiece finished product in the limiting groove. When the pressure sensor in the limiting groove senses that the workpiece is in place, the electromagnet is energized to adsorb the workpiece in the limiting groove. When the moving seat of the unloading mechanism moves to the discharging station, the electromagnet is de-energized to release the adsorption and fixation of the workpiece. Thus, it is convenient for the workpiece to be dialed into and out of the limiting groove through the one-sided open limiting groove, and the workpiece is fixed in the limiting groove by adding an electromagnet to improve the limiting effect of the limiting groove on the workpiece, improve the stability of the workpiece on the moving seat, and further improve the stability of workpiece loading and unloading.

[0019] 4. After the upper driving part descends until the airbag extends into the through hole of the workpiece, the clamping driving device drives the two clamping parts to clamp the outer wall of the workpiece, and the two pressing parts move towards each other to press the upper part of the airbag, so that the lower part of the airbag bulges and clings to the inner wall of the through hole. Thus, by adding the airbag and the pressing parts, the driving seat not only clings to the outer wall of the workpiece through the anti-slip layer of the clamping parts, but also clings to the inner wall of the through hole through the lower part of the airbag bulged by the pressing parts, greatly increasing the contact area between the clamping device and the inner and outer walls of the workpiece when clamping the workpiece. High-stability clamping and handling of the workpiece by the clamping parts can be achieved, and the inner and outer walls of the workpiece will not be worn by the flexible and high-friction airbag and anti-slip layer contacting the inner and outer walls of the workpiece respectively, nor will there be a risk of workpiece damage caused by excessive extrusion.

[0020] 5. The setting of the flexible layer avoids damage to the airbag when the pressing part presses the airbag, resulting in a decrease in the service life of the airbag, and at the same time improves the stability of the pressing part pressing the airbag.

[0021] 6. By adding the supporting rollers, the support for the middle part of the lower driving part is realized, and the structural stability of the lower driving part is improved. At the same time, through the support column and support cylinder that are vertically coaxially arranged with the supporting rollers by means of up-and-down sliding sleeves, and the support spring sleeved between them and with the upper and lower ends abutted between the sliding sleeve and the lower driving part, the effect of the supporting rollers and the support spring supporting the sliding sleeve coaxially up and down can be achieved, so as to improve the structural stability of the sliding sleeve and the upper driving part, and further improve the stability when the lower driving part and the upper driving part drive the moving seat and the clamping parts to move along the loading and unloading guide rail together. Moreover, when the lifting seat rises and the clamping parts of the upper driving part are suspended to clamp the workpiece, the supporting rollers and the support spring can still achieve the effect of supporting the sliding sleeve coaxially up and down. Therefore, by adding the supporting rollers and the support spring, the supporting strength for the upper driving part and the lower driving part is improved in all directions, the structural stability of the two is improved, and further the stability of workpiece loading and unloading is improved. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of a high-stability workpiece loading and unloading mechanism.

[0023] Figure 2 is Figure 1 a partial top view structural schematic diagram of

[0024] Figure 3 is Figure 1 a structural schematic diagram after removing the feeding mechanism and the discharging mechanism.

[0025] Figure 4 is a structural schematic diagram of the clamping device of the loading mechanism and the unloading mechanism clamping the workpiece blank and the finished workpiece.

[0026] Figure 5 is a structural schematic diagram of the loading mechanism and the unloading mechanism.

[0027] Figure 6 is a sectional structural schematic diagram when the clamping device does not clamp the workpiece.

[0028] Figure 7 is a sectional structural schematic diagram when the clamping device clamps the workpiece.

[0029] Reference numerals: loading and unloading guide rail 1, loading and unloading station 11, feeding station 12, discharging station 13; loading and unloading device 2, moving seat 21, limiting roller 211, limiting groove 212, lower driving part 22, supporting roller 221, supporting cylinder 222, upper driving part 23, sleeve 231, clamping device 24, clamping part 241, clamping driving device 242, driving seat 243, sliding rod 244, buffer spring 245, anti-slip layer 246, airbag 247, pressing part 248, pressing part 2481, lifting seat 25, sliding sleeve 251; moving driving device 3, telescopic oil cylinder 31, rotating seat 32, base 33; loading mechanism 4; unloading mechanism 5; processing station 6; feeding mechanism 7; discharging mechanism 8. Specific embodiments

[0030] Referring to Figure 1-7 shown, a high-stability workpiece loading and unloading mechanism includes: loading and unloading guide rail 1, including a loading and unloading station 11 corresponding to the spacing of the corresponding processing station 6, as well as a feeding station 12 and a discharging station 13; The loading and unloading device 2 comprises a moving seat 21 which is slidably arranged on the loading and unloading guide rail 1 and is used to receive the corresponding workpiece, a lower driving member 22 connected between the moving seat 21 and the moving driving device 3, an upper driving member 23 which is connected to the lower driving member 22 and is driven by the lifting driving device to lift up and down and driven by the telescopic driving device to move laterally, and a clamping device 24 which is connected to the upper driving member 23 and is located above the moving seat 21, the clamping device 24 comprises a clamping member 241 which is driven by the clamping driving device 242 and is used to clamp the workpiece, a limiting structure for limiting the workpiece is provided on the moving seat 21, and the moving driving device 3 is used to drive the lower driving member 22 and the upper driving member 23 to drive the moving seat 21 and the clamping member 241 to move along the loading and unloading guide rail 1; When the workpiece is located on the movable seat 21, the limiting structure limits the position of the workpiece, and the clamping member 241 clamps the workpiece; When the movable seat 21 slides to the loading and unloading station 11, the clamping member 241 is used to clamp the workpiece on the movable seat 21 to the processing station 6 or to clamp the workpiece on the processing station 6 to the movable seat 21; The above structure makes it possible to: When the workpiece is located on the moving seat 21, the limiting structure sets a limit to the workpiece, the clamping member 241 clamps the workpiece, and the moving drive device 3 drives the lower drive member 22 and the upper drive member 23 to drive the moving seat 21 and the clamping member 241 to move along the loading and unloading guide rail 1; thereby, the workpiece is doubly fixed by the limiting structure of the moving seat 21 and the clamping member 241, so that the upper drive member 23 and the lower drive member 22 can stably drive the rotating seat and the workpiece to move along the loading and unloading guide rail 1 to the loading and unloading station 11. During this period, due to the supporting and limiting effect of the moving seat 21, the clamping member 241 does not clamp and transport the workpiece in mid-air, so there is no risk of the workpiece slipping and being damaged between the clamping members 241, which can greatly improve the stability of loading and unloading the workpiece to the loading and unloading station 11; On this basis, when the moving seat 21 slides to the loading and unloading station 11, the clamping member 241 is used for vertical lifting and lateral movement to clamp the workpiece on the moving seat 21 to the processing station 6 or to clamp the workpiece on the processing station 6 to the moving seat 21; thus, the clamping member 241 only needs to perform a short-stroke suspended clamping of the workpiece between the spaced loading and unloading station 11 and the processing station 6, greatly shortening the stroke and duration of the clamping member 241 for suspending and clamping the workpiece, minimizing the risk of the workpiece slipping and being damaged between the clamping members 241 during loading and unloading, and such a setting can appropriately reduce the clamping force of the clamping member 241 to avoid damaging the workpiece due to excessive clamping force, improving the stability of the loading and unloading mechanism for loading and unloading the workpiece, and ensuring the yield rate of the workshop production.

[0031] To improve the workpiece loading and unloading efficiency of the loading and unloading mechanism, the loading and unloading guide rail 1 is set to be arc-shaped and the opening faces away from the processing station 6. The loading and unloading station 11 is located in the middle of the loading and unloading guide rail 1. The feeding station 12 and the discharging station 13 are symmetrically located on both sides of the loading and unloading station 11. The moving driving device 3 includes a rotating seat 32 driven to rotate by a telescopic oil cylinder 31. There are two sets of loading and unloading devices 2, namely a loading mechanism 4 and a unloading mechanism 5 which are arranged at an angle to each other; the setting of the above structure can achieve: when the rotating seat 32 drives the moving seats 21 of the loading mechanism 4 and the unloading mechanism 5 to slide to the feeding station 12 and the loading and unloading station 11 respectively, the feeding mechanism 7 inputs the next-level workpiece blank to the moving seat 21 of the loading mechanism 4, and the clamping member 241 of the unloading mechanism 5 clamps the previous-level workpiece finished product on the processing station 6 to the moving seat 21 of the unloading mechanism 5. When the rotating seat 32 drives the moving seats 21 of the loading mechanism 4 and the unloading mechanism 5 to slide to the loading and unloading station 11 and the discharging station 13 respectively, the clamping member 241 of the loading mechanism 4 clamps the next-level workpiece blank on the moving seat 21 to the processing station 6, and the discharging mechanism 8 outputs the previous-level workpiece finished product located on the moving seat 21 of the unloading mechanism 5. Therefore, by setting the loading and unloading guide rail 1 to be arc-shaped, not only can the moving efficiency of the moving seat 21 be improved, but also the floor area of the moving driving device 3 can be reduced, and the structural compactness can be improved. Through the division of labor and cooperation of the moving seats 21 of the loading mechanism 4 and the unloading mechanism 5, during one rotation of the moving driving device 3 driving the loading mechanism 4 and the unloading mechanism 5, the unloading and discharging of the previous-level workpiece finished product and the feeding and loading of the next-level workpiece blank can be realized, greatly reducing the waiting time for the workpiece to enter and exit and be loaded and unloaded. While reducing the working energy consumption of the loading and unloading device 2, the working efficiency is also improved, greatly improving the workpiece loading and unloading efficiency.

[0032] In order to improve the structural compactness of the loading and unloading mechanism, the loading and unloading guide rail 1 is set as a semi-circular arc. Specifically, the feeding mechanism 7 and the discharging mechanism 8 extending forward and backward are respectively arranged at both ends of the loading and unloading guide rail 1. The bottom of the moving seat 21 is clamped on the outer walls on both sides of the loading and unloading guide rail 1 by the limiting rolling of a number of laterally rotating limiting rollers 211. The loading and unloading station 11 is located in the middle of the loading and unloading guide rail 1, and the feeding station 12 and the discharging station 13 are respectively located at both ends of the loading and unloading guide rail 1. Thus, the distance between the feeding mechanism 7 and the discharging mechanism 8 can be reduced, and the structural compactness can be improved. The smoothness of the sliding of the moving seat 21 on the loading and unloading guide rail 1 can be improved by the limiting rolling clamping of the limiting rollers 211, and the loading and unloading efficiency can be improved.

[0033] In order to improve the limiting effect of the limiting structure, a limiting groove 212 with an opening on one side for inputting and outputting workpieces is recessed at the top of the moving seats 21 of the loading mechanism 4 and the unloading mechanism 5. The limiting structure includes a pressure sensor arranged in the limiting groove 212 and an electromagnet arranged in the moving seat 21 and used for electromagnetically attracting the workpiece. When the moving seat 21 of the loading mechanism 4 moves to the feeding station 12, the corresponding feeding mechanism 7 inputs the workpiece blank into the limiting groove 212. When the moving seat 21 of the unloading mechanism 5 moves to the discharging station 13, the corresponding discharging mechanism 8 outputs the workpiece finished product in the limiting groove 212. When the pressure sensor in the limiting groove 212 senses that the workpiece is in place, the electromagnet is energized to adsorb the workpiece in the limiting groove 212. When the moving seat 21 of the unloading mechanism 5 moves to the discharging station 13, the electromagnet is powered off to release the adsorption and fixation of the workpiece. Thus, the workpiece can be easily dialed into and out of the limiting groove 212 through the limiting groove 212 with a single-side opening, and the workpiece is fixed in the limiting groove 212 by adding an electromagnet to improve the limiting effect of the limiting groove 212 on the workpiece, improve the stability of the workpiece on the moving seat 21, and further improve the stability of workpiece loading and unloading.

[0034] Specifically, a through hole is provided vertically through the middle of the workpiece. In this embodiment, the workpiece is a pulley, and the through hole is a connecting hole in the middle of the pulley. The clamping device 24 further includes a driving seat 243 connecting the upper driving member 23. The number of the clamping members 241 is two. The clamping driving device 242 is arranged in the driving seat 243, and two driving ends respectively pass through the driving seat 243 through a plurality of sliding rods 244 and then connect the upper ends of the two clamping members 241. A buffer spring 245 is sleeved on the sliding rod 244 and abuts between the driving seat 243 and the clamping member 241. The two clamping members 241 are arranged as vertical plates, and anti-slip layers 246 adapted to the outer wall radian of the workpiece are provided on the opposite sides. The anti-slip layer 246 can be made of materials such as flexible and high-friction rubber. Thus, the setting of the buffer spring 245 can prevent the two clamping members 241 from being damaged due to excessive speed and violence when clamping towards each other. The setting of the anti-slip layer 246 can increase the contact area and friction force between the clamping member 241 and the outer wall of the workpiece when clamping the workpiece, which can greatly improve the stability of the clamping member 241 clamping the workpiece and reduce the risk of the workpiece sliding and falling when the clamping member 241 clamps the workpiece and suspends it in the air.

[0035] To improve the clamping stability of the clamping device 24, an airbag 247 vertically extending and having an outer diameter smaller than the inner diameter of the through hole is fixedly provided at the middle of the bottom of the driving seat 243. Oppositely extending extrusion members 248 are respectively protruded on the opposite sides of the two clamping members 241; the above structure can achieve: when the upper driving member 23 moves to the airbag 247 extending into the through hole of the workpiece and the two clamping members 241 correspond to the outer wall of the workpiece, the clamping driving device 242 drives the two clamping members 241 to clamp on the outer wall of the workpiece, and the two extrusion members 248 move towards each other to squeeze the upper part of the airbag 247, so that the lower part of the airbag 247 bulges and clings to the inner wall of the through hole. Specifically, the airbag 247 can be a flexible and high-friction rubber airbag 247, and an inflation port for inflation can be arranged on one side of the upper end of the airbag 247 to facilitate air replenishment when the internal gas of the airbag 247 is insufficient after long-term use. Thus, through the addition of the airbag 247 and the extrusion member 248, the driving seat 243 not only clings to the outer wall of the workpiece through the anti-slip layer 246 of the clamping member 241, but also the lower part of the airbag 247 bulged by the extrusion member 248 clings to the inner wall of the through hole, greatly increasing the contact area between the clamping device 24 and the inner and outer walls of the workpiece when clamping the workpiece, realizing high-stability clamping and handling of the workpiece by the clamping member 241, and respectively contacting the inner and outer walls of the workpiece through the flexible and high-friction airbag 247 and the anti-slip layer 246 will not cause wear to the inner and outer walls of the workpiece, nor will there be a risk of damage to the workpiece due to excessive extrusion.

[0036] To achieve flexible contact between the extrusion member 248 and the airbag 247, the extrusion member 248 is a horizontally extending plate. The opposite sides of the two extrusion members 248 are recessed to form extrusion portions 2481 corresponding to and adapted to the upper outer wall of the airbag 247. Flexible layers are provided on both of the two extrusion portions 2481. Specifically, the flexible layer can be made of flexible materials such as rubber. Thus, the setting of the flexible layer avoids damaging the airbag 247 when the extrusion member 248 squeezes the airbag 247 through the extrusion portion 2481, resulting in a decrease in the service life of the airbag 247, and at the same time improves the stability of the extrusion member 248 squeezing the airbag 247.

[0037] Specifically, the upper driving member 23 and the lower driving member 22 are arranged at an interval and in parallel up and down. An elevating seat 25 is provided between the upper driving member 23 and the lower driving member 22. One end of the elevating seat 25 extends horizontally to form a sliding sleeve 251 for horizontally and slidably inserting the upper driving member 23, and the other end is folded downward and slidably connected to the top of the lower driving member 22 up and down. The lifting drive device is arranged at the top of the lower driving member 22 and is used to drive the elevating seat 25 to lift up and down. The telescopic drive device is arranged in the sliding sleeve 251 and is used to drive the upper driving member 23 to move horizontally.

[0038] To improve the structural stability of the upper driving member 23 and the lower driving member 22, the moving driving device 3 further includes a base 33 for rotatably mounting the rotating seat 32. The middle part of the bottom of the lower driving member 22 is rollingly supported on the base 33 by a supporting roller 221, and a supporting cylinder 222 vertically coaxial with the supporting roller 221 is provided in the middle part of the top. A sleeve 231 vertically extending and slidably sleeved outside the supporting cylinder 222 is provided in the middle part of the bottom of the lower driving member 22. A supporting spring with its upper and lower ends abutted between the sliding sleeve 251 and the lower driving member 22 is provided in the supporting cylinder 222. Thus, through the addition of the supporting roller 221, the support for the middle part of the lower driving member 22 is realized, and the structural stability of the lower driving member 22 is improved. At the same time, through the supporting column and the supporting cylinder 222 which are connected by the upper and lower sliding sleeve 251 and vertically coaxial with the supporting roller 221, and the supporting spring sleeved therebetween and with its upper and lower ends abutted between the sliding sleeve 251 and the lower driving member 22, the effect of the supporting roller 221 and the supporting spring vertically and coaxially supporting the sliding sleeve 251 can be achieved, so as to improve the structural stability of the sliding sleeve 251 and the structural stability of the upper driving member 23. Furthermore, the stability when the lower driving member 22 and the upper driving member 23 drive the moving seat 21 and the clamping member 241 to move along the loading and unloading guide rail 1 is improved. And when the clamping member 241 of the upper driving member 23 is suspended to clamp the workpiece when the lifting seat 25 rises, the supporting roller 221 and the supporting spring can still achieve the effect of vertically and coaxially supporting the sliding sleeve 251. Therefore, through the addition of the supporting roller 221 and the supporting spring, the supporting strength for the upper driving member 23 and the lower driving member 22 is improved in all aspects, the structural stability of the two is improved, and further the stability of workpiece loading and unloading is improved.

[0039] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A highly stable workpiece loading and unloading mechanism, characterized in that: include: A loading and unloading guide rail (1), comprising loading and unloading stations (11) whose spacings correspond to the corresponding processing stations (6), as well as a feeding station (12) and a discharging station (13); The loading and unloading device (2) comprises a movable seat (21) slidably arranged on the loading and unloading guide rail (1) and used to receive a corresponding workpiece, a lower driving member (22) connected between the movable seat (21) and the moving driving device (3), an upper driving member (23) connected to the lower driving member (22) and driven by the lifting driving device to move up and down and driven by the telescopic driving device to move laterally, and a clamping device (24) connected to the upper driving member (23) and located above the movable seat (21), the clamping device (24) comprising a clamping member (241) driven by the clamping driving device (242) and used to clamp the workpiece, the movable seat (21) is provided with a limiting structure for limiting the workpiece, and the moving driving device (3) is used to drive the lower driving member (22) and the upper driving member (23) to drive the movable seat (21) and the clamping member (241) to move along the loading and unloading guide rail (1); When the workpiece is located on the movable seat (21), the limiting structure limits the position of the workpiece, and the clamping member (241) clamps the workpiece; When the movable seat (21) slides to the loading and unloading station (11), the clamping member (241) is used to clamp the workpiece on the movable seat (21) to the processing station (6) or to clamp the workpiece on the processing station (6) to the movable seat (21).

2. A highly stable workpiece loading and unloading mechanism as claimed in claim 1, characterized in that: The loading and unloading guide rail (1) is configured to be arc-shaped and its opening faces away from the processing station (6); the loading and unloading station (11) is located in the middle of the loading and unloading guide rail (1); the feeding station (12) and the discharging station (13) are symmetrically located on both sides of the loading and unloading station (11); the moving drive device (3) comprises a rotating seat (32) driven to rotate by a telescopic cylinder (31); the loading and unloading device (2) is provided with two sets of loading mechanisms (4) and unloading mechanisms (5) which are respectively arranged at an angle; the rotating seat (32) is used to drive the moving seats (21) of the loading mechanism (4) and the unloading mechanism (5) to slide to the feeding station (12) and the loading and unloading station (11) respectively, or to drive the moving seats (21) of the loading mechanism (4) and the unloading mechanism (5) to slide to the loading and unloading station (11) and the discharging station (13) respectively.

3. A highly stable workpiece loading and unloading mechanism as claimed in claim 2, characterized in that: The loading and unloading guide rail (1) is configured to be semicircular, the bottom of the movable seat (21) is provided with a plurality of horizontally rotating limiting rollers (211) and a limiting rolling clamp disposed on the outer walls of both sides of the loading and unloading guide rail (1), the loading and unloading station (11) is located in the middle of the loading and unloading guide rail (1), and the feeding station (12) and the discharging station (13) are respectively located at two ends of the loading and unloading guide rail (1).

4. A highly stable workpiece loading and unloading mechanism as claimed in claim 3, characterized in that: The tops of the movable seats (21) of the loading mechanism (4) and the unloading mechanism (5) are both recessed and provided with a limiting groove (212) with one side opening for inputting and outputting workpieces, and the limiting structure includes the limiting groove (212).

5. A highly stable workpiece loading and unloading mechanism as claimed in claim 4, characterized in that: The limiting structure further comprises a pressure sensor arranged in the limiting groove (212) and an electromagnet arranged in the movable seat (21) and used for electromagnetically attracting the workpiece.

6. A highly stable workpiece loading and unloading mechanism as claimed in claim 4, characterized in that: The middle of the workpiece is provided with through holes at the upper and lower parts, the clamping device (24) also includes a driving seat (243) connected to the upper driving member (23), the number of the clamping members (241) is two, the clamping driving device (242) is arranged in the driving seat (243) and the two driving ends are respectively slid through the driving seat (243) through a plurality of sliding rods (244) and then connected to the upper ends of the two clamping members (241), the sliding rods (244) are provided with a buffer spring (245) which is arranged between the driving seat (243) and the clamping member (241), the two clamping members (241) are configured as vertical plates and the opposite sides are provided with anti-slip layers (246) adapted to the curvature of the outer wall of the workpiece.

7. A highly stable workpiece loading and unloading mechanism as claimed in claim 6, characterized in that: A vertically extending airbag (247) with an outer diameter smaller than the inner diameter of the through hole is fixedly provided at the bottom middle of the driving seat (243), and extrusion members (248) extending toward each other are respectively protruded on the opposite sides of the two clamping members (241); when the upper driving member (23) moves until the airbag (247) extends into the through hole of the workpiece and the two clamping members (241) correspond to the outer wall of the workpiece, the clamping driving device (242) drives the two clamping members (241) to clamp the outer wall of the workpiece, and the two extrusion members (248) move toward each other to squeeze the upper part of the airbag (247), so that the lower part of the airbag (247) bulges and fits tightly against the inner wall of the through hole.

8. A highly stable workpiece loading and unloading mechanism as claimed in claim 7, characterized in that: The extrusion piece (248) is in the shape of a transversely extending plate, and the opposite sides of the two extrusion pieces (248) are recessed to form an extrusion portion (2481) corresponding to the upper outer wall of the airbag (247), and a flexible layer is provided on both extrusion portions (2481).

9. A highly stable workpiece loading and unloading mechanism as claimed in claim 2, characterized in that: The upper driving member (23) and the lower driving member (22) are spaced apart and arranged in parallel with each other in the upper and lower directions. A lifting seat (25) is arranged between the upper driving member (23) and the lower driving member (22). One end of the lifting seat (25) extends transversely to form a sliding sleeve (251) for transversely slidingly inserting the upper driving member (23), and the other end is folded downward and slidably connected to the top of the lower driving member (22). The lifting drive device is arranged at the top of the lower driving member (22) and is used to drive the lifting seat (25) to move up and down. The telescopic drive device is arranged in the sliding sleeve (251) and is used to drive the upper driving member (23) to move transversely.

10. A highly stable workpiece loading and unloading mechanism as claimed in claim 9, characterized in that: The mobile drive device (3) further comprises a base (33) for rotatably mounting the rotating seat (32); the bottom middle portion of the lower drive member (22) is rollingly supported on the base (33) via a support roller (221); a support cylinder (222) is provided at the top middle portion thereof and is vertically coaxially arranged with the support roller (221); a sleeve (231) is provided at the bottom middle portion of the lower drive member (22) and extends vertically and has upper and lower sliding sleeves (251) arranged outside the support cylinder (222); and a support spring is provided in the support cylinder (222) with upper and lower ends arranged at the top between the sliding sleeve (251) and the lower drive member (22).

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