A kind of empty box backflow mechanism based on drill pin sorting

Abstract

This utility model belongs to the field of box return technology, and particularly relates to an empty box return mechanism based on drill bit sorting. Drill bit sorting equipment generally requires a mechanism for returning empty boxes. This empty box return mechanism includes three methods: 1. An operator stands in the manual input area, puts a new empty needle box into the empty input module from one end, and stops it from the other end. The transfer module picks up the empty needle box and places it in the needle matching position for use by the execution module. 2. A vertical storage bin contains multiple empty needle boxes. Under signal drive, the connecting table pushes out the empty needle boxes one by one. The transfer module picks up the empty needle boxes and places them in the needle matching position for use by the execution module. 3. After the full needle boxes are used up, empty needle boxes are formed. The transfer module picks up the empty needle box and places it on the carrying conveyor module. The carrying conveyor module transports it to the side near the needle matching position. The transfer module picks up the empty needle box and places it in the needle matching position for use by the execution module.

Description

Technical Field

[0001] This utility model belongs to the field of box return technology, and in particular relates to an empty box return mechanism based on drill bit sorting. Background Technology

[0002] PCB boards often require pre-drilled holes for different components, and these holes need to accommodate different components, resulting in varying hole diameters that necessitate the use of different drill bits. In existing technologies, typical drill bit sorting equipment holds and positions several different types of raw material needle boxes within its tool magazine. After a drill bit is extracted from a raw material needle box, it becomes an empty needle box. The extracted drill bit is then placed into another empty needle box, forming a loading needle box. The loading needle box holds different drill bits as needed, and once full, it flows to the output position. Empty needle boxes are typically returned to the tool magazine automatically or flow out from the side, awaiting operator removal and repositioning. This process increases equipment downtime by at least 30%, especially when the production line frequently switches between multiple drill bit specifications. The needle box recycling and reloading cycle significantly reduces equipment efficiency and increases labor costs. Utility Model Content

[0003] The purpose of this invention is to provide an empty box return mechanism based on drill bit sorting, which aims to solve the technical problem that the reloading of empty needle boxes in the prior art is time-consuming.

[0004] To achieve the above objectives, this utility model provides an empty cartridge return mechanism based on drill bit sorting for returning empty needle cartridges, including...

[0005] The frame has a tool magazine on one side; the tool magazine contains a full-load needle box.

[0006] The vertical storage compartment includes a storage frame and a lifting mechanism. The storage frame is embedded in the rack, and the upward-opening end of the storage frame extends out of the rack. The storage frame contains several empty needle boxes. A connecting platform is connected to the lifting mechanism so that it can push the empty needle boxes up and down within the storage frame.

[0007] The empty input module is located on one side of the vertical storage compartment, with one end close to the manual input area, and is used to transport empty needle boxes.

[0008] The carrying and conveying module is located on one side of the unloaded input module, with one end connected to the tool magazine and the other end connected to the execution module.

[0009] The execution module is movably mounted on the frame and can reach four sequentially positioned points on the frame: loading position, matching position, needle matching position, and output position. The execution module is used to move the drill bits in the full needle box in the tool magazine to the empty needle box to form a feeding needle box.

[0010] The transplanting module, mounted on the frame, is used to grab empty needle boxes from the carrying conveyor module, the empty input module, and the vertical storage bin, and place them on the execution module.

[0011] Furthermore, the lowering mechanism includes a lifting motor and a support plate. One side of the storage frame is connected to the support plate, and the upper and lower sides of the support plate are respectively provided with a lifting motor and a connecting seat. The drive end of the lifting motor is connected to the connecting seat via a belt. A connecting platform is divided into a first connecting part and a second connecting part. The first connecting part is synchronously connected to the belt, and the second connecting part pushes the empty needle box to move up and down within the storage frame.

[0012] Furthermore, the unloaded input module includes a conveyor motor, a conveyor belt, and a conveyor mounting plate. The conveyor motor is connected to one side of the conveyor mounting plate, which is mounted on the frame, and the conveyor motor drives the conveyor belt located on the conveyor mounting plate to rotate.

[0013] Furthermore, the conveying module includes a first drive module and a second drive module, which are distributed in parallel on the frame. The first drive module includes a first motor, a first conveyor belt, and a first mounting plate. The first motor is connected to one side of the first mounting plate on the frame, and the first motor drives the first conveyor belt located on the first mounting plate to rotate. The second drive module includes a second motor, a second conveyor belt, and a second mounting plate. The second motor is connected to one side of the second mounting plate on the frame, and the second motor drives the second conveyor belt located on the second mounting plate to rotate.

[0014] Furthermore, the execution module includes a needle fitting module, a front fitting moving module, and a rear fitting moving module. The drive end of the front fitting moving module moves between the loading position and the fitting position; the drive end of the rear fitting moving module moves between the needle fitting position and the output position; and the needle fitting module is located between the fitting position and the needle fitting position.

[0015] Furthermore, the transplanting module includes a front needle box transplanting module and a rear needle box transplanting module. The front needle box transplanting module is connected between the front needle box moving module and the carrying conveying module, and moves the fully loaded needle box on the carrying conveying module to the loading position. The rear needle box transplanting module is connected between the empty input module and the carrying conveying module, and moves the empty needle box onto the carrying conveying module.

[0016] Furthermore, the rear needle box transfer module can also move towards the vertical storage compartment, transferring the empty needle box from the vertical storage compartment to the carrying and conveying module.

[0017] Furthermore, the front needle box transplantation module includes a front vertical bracket, a front translation drive assembly, a front lifting assembly, and a front gripping unit. The front vertical bracket is located on one side of the tool magazine, the front translation drive assembly is located on the vertical bracket, the front lifting assembly is connected to the drive end of the front translation drive assembly, and the front gripping unit is connected to the drive end of the front translation drive assembly.

[0018] Furthermore, the rear needle box transplanting module includes a rear upright bracket, a rear translation drive assembly, a rear lifting assembly, and a rear gripping unit. The rear upright bracket is respectively set on both sides of the frame, and the lower end of the rear upright bracket is provided with a movable front horizontal push module. The rear upright bracket is provided with a rear translation drive assembly, which is connected to the rear lifting assembly, and the rear gripping unit is connected to the drive end of the rear lifting assembly.

[0019] The above-mentioned technical solutions in the empty box return mechanism based on drill bit sorting provided in this embodiment of the utility model have at least one of the following technical effects:

[0020] In this technology, the full needle box of the tool magazine is moved to the side near the loading position by the carrying and conveying module. The transfer module grabs the full needle box and places it on the loading position. When the execution module starts to operate, the full needle box on the loading position is pushed to the matching position, and the drill bits in the full needle box on the loading position are moved to the empty needle box on the matching position. After the empty needle box is assembled, it forms the loading needle box. Finally, driven by the execution module, the loading needle box is moved to the output position, and the loading needle box is manually removed. At this time, there are no extra empty needle boxes on the matching position, and the operator has three options for the return of empty needle boxes:

[0021] 1. The operator stands in the manual input area, inserts a new empty needle box from one end of the empty input module, and stops it from the other end. The transfer module picks up the empty needle box and places it in the needle fitting position for use by the execution module.

[0022] 2. The vertical storage compartment contains multiple empty needle boxes. Driven by a signal, the connecting platform ejects the empty needle boxes one by one. The transfer module picks up the empty needle boxes and places them in the needle fitting position for use by the execution module.

[0023] 3. After the full needle box is used up, an empty needle box is formed. The transfer module picks up the empty needle box and places it on the carrier conveyor module. The carrier conveyor module transports it to the side near the needle distribution position. The transfer module picks up the empty needle box and places it in the needle distribution position for use by the execution module.

[0024] The transplanting module and the execution module work together to achieve parallel processing of drill bit sorting and needle box recycling, saving time and improving production efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the overall structure of the empty box return mechanism based on drill bit sorting provided in an embodiment of this utility model;

[0027] Figure 2 A schematic diagram of the empty box return mechanism based on drill bit sorting provided in this embodiment of the utility model, omitting the tool magazine. Figure 1 ;

[0028] Figure 3 A schematic diagram of the empty box return mechanism based on drill bit sorting provided in this embodiment of the utility model, omitting the tool magazine. Figure 2 ;

[0029] Figure 4 This is a schematic diagram of the structure of a vertical storage bin based on drill bit sorting provided in an embodiment of the present invention.

[0030] The following are the labeling elements in the figure:

[0031] 100. Frame; 110. Tool magazine; 120. Loading position; 130. Position to be matched; 140. Pin matching position; 150. Output position;

[0032] 200. Vertical storage bin; 210. Storage frame; 220. Lifting mechanism; 221. Lifting motor; 222. Support plate; 230. Connecting platform; 240. First connecting part; 250. Second connecting part; 260. Belt;

[0033] 300. No-load input module; 310. Conveyor motor; 320. Conveyor belt; 330. Conveyor mounting plate;

[0034] 400, Carrying conveyor module; 410, First drive module; 411, First motor; 412, First conveyor belt; 413, First mounting plate; 420, Second drive module; 430, Second motor; 440, Second conveyor belt; 450, Second mounting plate;

[0035] 500. Execution module; 510. Needle fitting module; 520. Front fitting moving module; 530. Rear fitting moving module;

[0036] 600. Transplanting module; 610. Front needle box transplanting module; 611. Front upright support; 612. Front translation drive assembly; 613. Front lifting assembly; 614. Front gripping unit; 620. Rear needle box transplanting module; 621. Rear upright support; 622. Rear translation drive assembly; 623. Rear lifting assembly; 624. Rear gripping unit; 625. Front horizontal pushing module. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings 1-4, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figure 1-4 The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0038] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the terms "first" and "second" 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0041] In one embodiment of this utility model, such as Figure 1 , 2As shown, an empty needle box return mechanism based on drill bit sorting is used to return empty needle boxes. It includes a frame 100, a vertical storage bin 200, an empty input module 300, a conveying module 400, an execution module 500, and a transfer module 600. A tool magazine 110 is located on one side of the frame 100; the tool magazine 110 contains fully loaded needle boxes. The vertical storage bin 200 includes a storage frame 210 and a lifting mechanism 220. The storage frame 210 is embedded in the frame 100, with its upward-opening end extending beyond the frame 100. The storage frame 210 stores several empty needle boxes. A connecting platform 230 is connected to the lifting mechanism 220, allowing it to push the empty needle boxes up and down within the storage frame 210. The empty input module 300 is located on one side of the vertical storage bin 200, with one end close to the manual input area, and is used to transport empty needle boxes. The carrying and conveying module 400 is located on one side of the unloaded input module 300, with one end connected to the tool magazine 110 and the other end connected to the execution module 500. The execution module 500 is movably mounted on the frame 100 and can reach four sequentially arranged positioning points on the frame 100: loading position 120, matching position 130, needle matching position 140, and output position 150. The execution module 500 is used to move the drill bits in the full needle box in the tool magazine 110 to the unloaded needle box to form a feeding needle box.

[0042] The transplanting module 600 is mounted on the frame 100 and is used to grab empty needle boxes from the carrying and conveying module 400, the empty input module 300 and the vertical storage bin 200 and place them on the execution module 500.

[0043] Specifically, in this technology, the full needle box of the tool magazine 110 is moved to the side near the loading position 120 by the carrying and conveying module 400. The transfer module 600 grabs the full needle box and places it on the loading position 120. When the execution module 500 starts to operate, the full needle box of the loading position 120 is pushed to the matching position 130, and the drill bits in the full needle box of the loading position 120 are moved to the empty needle box of the matching position 140. After the empty needle box is assembled, it forms a loading needle box. Finally, driven by the execution module 500, the loading needle box is moved to the output position 150, and the loading needle box with different types of drill bits is manually removed. At this time, there are no extra empty needle boxes at the matching position 140, and the operator has three options for the return of empty needle boxes:

[0044] 1. The operator stands in the manual input area, inserts a new empty needle box from one end of the empty input module 300, and stops it from the other end. The transfer module 600 picks up the empty needle box and places it in the needle fitting position 140 for use by the execution module 500.

[0045] 2. The vertical storage compartment 200 contains multiple empty needle boxes. Under signal drive, the connecting table 230 ejects the empty needle boxes one by one. The transfer module 600 picks up the empty needle boxes and places them in the needle fitting position 140 for use by the execution module 500.

[0046] 3. After the full needle box is used up, an empty needle box is formed. The transfer module 600 picks up the empty needle box and places it on the carrier conveyor module 400. The carrier conveyor module 400 transports it to the side near the needle distribution position 140. The transfer module 600 picks up the empty needle box and places it in the needle distribution position 140 for use by the execution module 500.

[0047] The transplanting module 600 and the execution module 500 work together to achieve parallel processing of drill bit sorting and needle box recycling, saving time and improving production efficiency.

[0048] Furthermore, such as Figure 4 As shown, the lowering mechanism includes a lifting motor 221 and a support plate 222. One side of the storage frame 210 is connected to the support plate 222. The upper and lower sides of the support plate 222 are respectively equipped with the lifting motor 221 and a connecting seat. The drive end of the lifting motor 221 is connected to the connecting seat via a belt 260. A connecting platform 230 is divided into a first connecting part 240 and a second connecting part 250. The first connecting part 240 is synchronously connected to the belt 260, and the second connecting part 250 pushes the empty needle box up and down within the storage frame 210. Specifically, when the vertical storage compartment 200 needs to store an empty needle box: the lifting motor 221 drives the connecting seat down via the belt 260, and the second connecting part 250 presses down and stacks within the storage frame 210, forming a new storage space. When the bottom needle box needs to be retrieved, the lifting motor 221 reverses, causing the support plate 222 to rise, and the second connecting part 250 lifts the entire needle box. When the top needle box reaches the opening, the first connecting part 240 pushes it out horizontally. The purpose of the vertical storage station is to provide an additional input / output method for the empty needle box, thus compensating for the lack of empty needle boxes.

[0049] Furthermore, such as Figure 2 As shown, the unloaded input module 300 includes a conveyor motor 310, a conveyor belt 320, and a conveyor mounting plate 330. The conveyor motor 310 is connected to one side of the conveyor mounting plate 330, which is mounted on the frame 100. The conveyor motor 310 drives the conveyor belt 320 located on the conveyor mounting plate 330 to rotate. Specifically, the operator stands in the manual input area, inserts a new unloaded needle box from one end of the unloaded input module 300, and stops it from the other end. The transfer module 600 picks up the unloaded needle box and places it in the needle dispensing position 140 for use by the execution module 500.

[0050] Furthermore, such as Figure 2As shown, the conveying module 400 includes a first drive module 410 and a second drive module 420, which are distributed in parallel on the frame 100. The first drive module 410 includes a first motor 411, a first conveyor belt 412, and a first mounting plate 413. The first motor 411 is connected to one side of the first mounting plate 413 on the frame 100, and the first motor 411 drives the first conveyor belt 412 located on the first mounting plate 413 to rotate. The second drive module 420 includes a second motor 430, a second conveyor belt 440, and a second mounting plate 450. The second motor 430 is connected to one side of the second mounting plate 450 on the frame 100, and the second motor 430 drives the second conveyor belt 440 located on the second mounting plate 450 to rotate. Specifically, the first drive module 410 is responsible for inputting the full-load needle box that needs to be replenished into the tool magazine 110. The second drive module 420 drives in the forward direction and is responsible for outputting the full-load needle box that needs to be specified from the tool magazine 110. At the same time, the second drive module 420 drives in the reverse direction and is responsible for transporting the empty needle box. It moves the empty needle box to one end near the needle fitting position 140, where it is picked up by the transfer module 600 and moved to the execution module 500 for use.

[0051] Furthermore, such as Figure 3 As shown, the execution module 500 includes a needle dispensing module 510 and a front needle-to-dispense moving module 520 and a rear needle-to-dispense moving module 530, both mounted on the frame 100. The drive end of the front needle-to-dispense moving module 520 moves between the loading position 120 and the needle-to-dispense position 130; the drive end of the rear needle-to-dispense moving module 530 moves between the needle-dispensing position 140 and the output position 150; the needle dispensing module 510 is located between the needle-to-dispense position 130 and the needle-dispensing position 140. Specifically, the front needle-to-dispense moving module 520 and the rear needle-to-dispense moving module 530 serve as transport stations for needle box driving. A full needle box is moved to the side near the loading position 120 by the carrying and conveying module 400, and the transfer module 600 grabs the full needle box and places it on the loading position 120. The front needle-to-dispense moving module 520 moves the full needle box on the loading position 120 to the needle-to-dispense position 130. The needle-feeding module 510 moves back and forth between the needle-feeding position 130 and the needle-feeding position 140. Its purpose is to grab the drill bits from the fully loaded needle box on the needle-feeding position 130 and place them on the empty needle box on the needle-feeding position 140 according to the corresponding command. After the empty needle box is assembled, a feeding needle box with different types of drill bits is formed. Finally, driven by the rear needle-feeding moving module 530, the feeding needle box is moved to the output position 150, where it is manually removed.

[0052] Furthermore, the transplanting module 600 includes a front needle box transplanting module 610 and a rear needle box transplanting module 620. The front needle box transplanting module 610 is connected between the front ready-to-be-placed moving module 520 and the carrying and conveying module 400, and moves the fully loaded needle boxes on the carrying and conveying module 400 to the loading position 120. The rear needle box transplanting module 620 is connected between the empty input module 300 and the carrying and conveying module 400, and moves the empty needle boxes to the carrying and conveying module 400.

[0053] Furthermore, such as Figure 3 As shown, the rear needle box transfer module 620 can also move towards the vertical storage compartment 200 to move the empty needle box from the vertical storage compartment 200 onto the carrying and conveying module 400. The front needle box transfer module 610 includes a front vertical support 611, a front translation drive assembly 612, a front lifting assembly 613, and a front gripping unit 614. The front vertical support 611 is located on one side of the tool magazine 110, the front translation drive assembly 612 is located on the vertical support, the front lifting assembly 613 is connected to the drive end of the front translation drive assembly 612, and the front gripping unit 614 is connected to the drive end of the front translation drive assembly 612. The rear needle box transplanting module 620 includes a rear upright bracket 621, a rear translation drive assembly 622, a rear lifting assembly 623, and a rear gripping unit 624. The rear upright bracket 621 is respectively arranged on both sides of the frame 100. The lower end of the rear upright bracket 621 is provided with a movable front pushing module 625. The rear upright bracket 621 is provided with a rear translation drive assembly 622, which is connected to the rear lifting assembly 623. The rear gripping unit 624 is connected to the drive end of the rear lifting assembly 623.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A needle sorting based empty cartridge backflow mechanism for backflow of empty needle cartridge, characterized by, include The frame has a tool magazine on one side; the tool magazine contains a full-load needle box. A vertical storage compartment includes a storage frame and a lifting mechanism, wherein the storage frame is embedded in the rack and the upward-opening end of the storage frame extends out of the rack; The storage frame stores several empty needle boxes, and a connecting platform is connected to the lifting mechanism so that it pushes the empty needle boxes up and down within the storage frame. An empty input module is located on one side of the vertical storage compartment, with one end close to the manual input area, and is used to deliver empty needle boxes. A carrying and conveying module is disposed on one side of the unloaded input module, with one end connected to the tool magazine and the other end connected to the execution module; The execution module is movably mounted on the frame and can reach four sequentially arranged positioning points on the frame: loading position, matching position, needle matching position, and output position. The execution module is used to move the drill bits in the full needle box in the tool magazine to the empty needle box to form a feeding needle box. The transplanting module, mounted on the frame, is used to grab the empty needle box from the carrying and conveying module, the empty input module, and the vertical storage compartment and place it on the execution module.

2. The empty case backflow mechanism based on a sort by drill according to claim 1, characterized in that, The lifting mechanism includes a lifting motor and a support plate. One side of the storage frame is connected to the support plate. The upper and lower sides of the support plate are respectively provided with the lifting motor and the connecting seat. The drive end of the lifting motor is connected to the connecting seat via a belt. A connecting platform is divided into a first connecting part and a second connecting part. The first connecting part is synchronously connected to the belt, and the second connecting part pushes the empty needle box to move up and down within the storage frame.

3. The pin-based sorting and empty case return mechanism of claim 1, wherein, The unloaded input module includes a conveyor motor, a conveyor belt, and a conveyor mounting plate. The conveyor motor is connected to one side of the conveyor mounting plate, which is mounted on the frame, and the conveyor motor drives the conveyor belt located on the conveyor mounting plate to rotate.

4. The pin-based sorting and empty case return mechanism of claim 1, wherein, The conveying module includes a first drive module and a second drive module, which are distributed in parallel on the frame. The first drive module includes a first motor, a first conveyor belt, and a first mounting plate. The first motor is connected to one side of the first mounting plate on the frame, and the first motor drives the first conveyor belt located on the first mounting plate to rotate. The second drive module includes a second motor, a second conveyor belt, and a second mounting plate. The second motor is connected to one side of the second mounting plate on the frame, and the second motor drives the second conveyor belt located on the second mounting plate to rotate.

5. The pin-based sorting and empty case return mechanism of claim 1, wherein, The execution module includes a needle fitting module, a front fitting moving module, and a rear fitting moving module. The driving end of the front fitting moving module moves between the loading position and the fitting position; the driving end of the rear fitting moving module moves between the needle fitting position and the output position; and the needle fitting module is disposed between the fitting position and the needle fitting position.

6. A blank return mechanism based on pin sorters according to claim 5, characterized in that, The transplanting module includes a front needle box transplanting module and a rear needle box transplanting module. The front needle box transplanting module is connected between the front needle box moving module and the carrying and conveying module, and moves the fully loaded needle boxes on the carrying and conveying module to the loading position. The rear needle box transplanting module is connected between the empty input module and the carrying and conveying module, and moves the empty needle boxes onto the carrying and conveying module.

7. A blank return mechanism based on pin sorters according to claim 6, characterized in that, The rear needle box transfer module can also move toward the vertical storage compartment to move the empty needle box in the vertical storage compartment onto the carrying and conveying module.

8. The pin-based sorting and empty case backflow mechanism of claim 6, wherein, The front needle box transplantation module includes a front upright bracket, a front translation drive assembly, a front lifting assembly, and a front gripping unit. The front upright bracket is located on one side of the tool magazine, the front translation drive assembly is located on the upright bracket, the front lifting assembly is connected to the drive end of the front translation drive assembly, and the front gripping unit is connected to the drive end of the front translation drive assembly.

9. The pin-based sorting return mechanism of claim 6, wherein, The rear needle box transplanting module includes a rear upright support, a rear translation drive assembly, a rear lifting assembly, and a rear gripping unit. The rear upright support is respectively disposed on both sides of the frame, and a movable front pushing module is provided at the lower end of the rear upright support. The rear translation drive assembly is provided on the rear upright support, and the rear translation drive assembly is connected to the rear lifting assembly. The rear gripping unit is connected to the drive end of the rear lifting assembly.

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