An automatic assembly device for a bearing seat assembly of a solar photovoltaic support

Abstract

The present invention discloses an automatic assembly device for a bearing seat assembly of a solar photovoltaic bracket, which includes a first conveyor line, a first jig conveyed on the first conveyor line, an oval bracket feeding mechanism arranged along the first conveyor line, a support rod assembly mechanism, a bearing seat module assembly feeding unit, a manual tying belt station, and a product discharging station; the first jig includes a first support positioning block for supporting the oval bracket and the support rod, and second support positioning blocks slidably arranged before and after on both sides of the first support positioning block for carrying the bearing seat module; the bearing seat module assembly feeding unit includes a second conveyor line, a second jig conveyed on the second conveyor line, a bearing seat feeding mechanism arranged along the second conveyor line, a U-shaped hoop assembly station, and a second handling mechanism for transporting the bearing seat module on the second conveyor line to the first conveyor line. The present invention can realize the automatic assembly of the above-mentioned bearing seat assembly, greatly improve the production efficiency, reduce the labor intensity, and save costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of automation equipment, and particularly relates to an automatic assembly device for a bearing seat assembly of a solar photovoltaic bracket. Background Art

[0002] A solar photovoltaic module is a device that converts solar light energy into electrical energy, and is generally arranged in a large area through a solar photovoltaic bracket. The brackets for supporting solar cell modules are generally divided into two categories: fixed brackets and tracking brackets. Currently, tracking brackets are more widely used. A solar photovoltaic bracket generally includes a main beam, a secondary beam, a column, and a bearing seat assembly; the column serves as the vertical support of the entire support system, the main beam and the secondary beam form a planar support system above the column, and the bearing seat assembly is installed on the secondary beam or the main beam to support the photovoltaic module. The number of bearing seat assemblies required for a solar photovoltaic module support system is very large.

[0003] Currently, there is a bearing seat assembly 200, as Figure 1 shown, for installation on both sides of the column, which includes an oval bracket 201, two bearing seat modules 202 located on the left and right sides of the oval bracket 201, a support rod 203 passing through a through hole 2011 on the oval bracket 201 and having both ends extending into the bearing seat module 202, and a pair of right-angle connecting blocks 204 located below the oval bracket 201; the bearing seat module 202 includes a bearing seat 2021, a U-shaped hoop 2022 passing upward through the bearing seat 2021 from the bottom of the bearing seat 2021, a locking hoop block 2023 installed on the U-shaped hoop 2022 from above the bearing seat 2021, and a nut 2024 for locking the locking hoop block 2023 on the U-shaped hoop 2022. The above-mentioned bearing seat assembly 200 is only used for installation on the main beam or the secondary beam near both sides of the column, and the bearing seat module 202 is separately used for installation at other positions on the main beam or the secondary beam. In response to on-site installation requirements, in order to facilitate the installation of the above-mentioned bearing seat assembly 200 at the column and facilitate the quantity configuration and transportation of the bearing seat assembly 200, it is now necessary to tie the bearing seat assembly 200 into a whole for convenient transportation and on-site quantity configuration.

[0004] Since after both ends of the support rod 203 are inserted into the limiting holes 20231 on the locking hoop block 2023, the support rod 203 and the limiting holes 20231 are in clearance fit and have freedom in the axial direction. In order to keep the bearing seat assembly 200 integral, it is necessary to use a first tie strap 301 to tightly tie the two bearing seat modules 202 and the oval bracket 201 between the two bearing seat modules 202 in the axial direction of the support rod 203, and utilize the tightening effect of the first tie strap 301 on the two bearing seat modules 202 to further limit the positions of the two axial ends of the support rod 203 and prevent the support rod 203 from falling off.

[0005] To prevent the two ends of the bearing block 2021 in the two bearing block modules 202 from shaking and losing the limiting effect on the shaft ends of the support rods 203, it is also necessary to tie the two ends of the bearing block 2021 in the two bearing block modules 202 tightly with two second cable ties 302 respectively to prevent the bearing block 2021 from shaking.

[0006] One right-angle plate of the right-angle connection block 204 is used for bolt connection with the bottom of the oval bracket 201, and the other right-angle plate is used for bolt connection with the column. During on-site installation, it is also necessary to flexibly fine-tune the position of the oval bracket 201. Therefore, before arriving at the installation site, the right-angle connection block 204 and the oval bracket 201 are not bolt-connected, but the bolt connection is completed on-site. Therefore, before arriving at the installation site, the two bottom parts of the two right-angle connection blocks 204 and the oval bracket 201 also need to be tied tightly with two third cable ties 303 respectively to achieve integral packaging.

[0007] In the prior art, after each component in the bearing block assembly 200 is produced, the bearing block module 202 is manually assembled first, and then the bearing block assembly 200 is assembled. Finally, the bearing block assembly 200 is tied with cable ties according to the set requirements. This method has extremely low operation efficiency on the one hand, and on the other hand, the taking and handling of each component rely on manual labor, resulting in high labor intensity, easy fatigue of the operators, and time-consuming and laborious.

[0008] Therefore, it is necessary to provide a new automatic assembly device for the bearing block assembly of the solar photovoltaic bracket to solve the above technical problems. Summary of the Invention

[0009] The main purpose of the present invention is to provide an automatic assembly device for the bearing block assembly of the solar photovoltaic bracket, which can realize the automatic assembly of the above bearing block assembly, greatly improve the production efficiency, reduce the labor intensity, and save costs.

[0010] The present invention realizes the above object through the following technical solutions: an automatic assembly device for the bearing block assembly of the solar photovoltaic bracket, the bearing block assembly includes an oval bracket, a support rod, a bearing block module, and a right-angle connection block, and the bearing block module includes a bearing block, a U-shaped hoop, a locking block, and a nut; the assembly device includes:

[0011] A first conveyor line, on which a first fixture is conveyed. The first fixture includes a first support plate, a first support and positioning block fixed on the first support plate for supporting the oval bracket and the support rod, and a pair of second support and positioning blocks that are slidably arranged back and forth on both sides of the first support and positioning block and are used for carrying two bearing block modules; an artificial cable tie station and a product blanking station are arranged at the end of the first conveyor line;

[0012] The oval bracket feeding mechanism realizes the automatic feeding and loading of the oval bracket and places the oval bracket on the first support positioning block;

[0013] The support rod assembling mechanism realizes the automatic feeding and insertion of the support rod;

[0014] The bearing seat module assembling and feeding unit includes a second conveyor line, a second fixture conveyed on the second conveyor line, a bearing seat feeding mechanism arranged along the second conveyor line, a U-shaped hoop assembling station, and a second handling mechanism for transporting the bearing seat module on the second conveyor line to the first conveyor line; at the U-shaped hoop assembling station, there are a U-shaped hoop feeding mechanism, a U-shaped hoop receiving and assembling mechanism that horizontally moves after receiving the U-shaped hoop to below the second fixture and pushes the U-shaped hoop upward through the bearing seat, a U-shaped hoop feeding mechanism that clamps the U-shaped hoop from the output end of the U-shaped hoop feeding mechanism and then places it into the U-shaped hoop receiving and assembling mechanism, a lock hoop block feeding and conveying line located beside the second conveyor line, a lock hoop block assembling and handling mechanism for transporting the lock hoop block from the lock hoop block feeding and conveying line to the second fixture, and a lock nut mechanism for locking the nut on the U-shaped hoop.

[0015] Further, the first fixture further includes an elastic reset component for holding the second support positioning block in a set position;

[0016] The first support positioning block includes a first profiling positioning groove that is profiled with the middle section of the oval bracket and support rod bearing grooves located on the front and rear sides of the first profiling positioning groove and used for supporting the support rod; the oval bracket is placed on the first support positioning block, and its bottom is raised by a set height, leaving a space below for tying the third cable tie.

[0017] The second support positioning block includes a second profiling positioning groove that is profiled with the outer contour of the bearing seat and a receiving groove that extends downward from the bottom of the second profiling positioning groove and is used for accommodating the U-shaped hoop.

[0018] Further, at the manual cable tie station, there is a pushing mechanism for pushing the two second support positioning blocks towards the first support positioning block.

[0019] Further, through holes for the cable tie are provided at corresponding positions on the first support positioning block and the second support positioning block; the top of the through hole for the cable tie penetrates through the first support positioning block or the second support positioning block upward, and the bottom extends downward by a set depth.

[0020] Further, the support rod assembling mechanism includes a vibrating disk for realizing the automatic feeding of the support rod, a misalignment feeding module arranged at the output end of the vibrating disk, and a docking module and a pushing module oppositely arranged on the front and rear sides of the misalignment feeding module.

[0021] Further, the offset material distribution module includes a material receiving plate and a third driving member for driving the material receiving plate to move in the left-right direction to achieve offset material distribution; a through material receiving groove is provided on the material receiving plate in the front-back direction;

[0022] The docking module includes a bridging through pipe for docking the material receiving groove and the first support positioning block, and a first driving member for driving the bridging through pipe to move up and down;

[0023] The pushing module includes a push rod for pushing the support rod in the material receiving groove through the bridging through pipe into the first support positioning block, and a second driving member for driving the push rod to move back and forth.

[0024] Further, the second jig includes a second support plate and a third support positioning block provided on the second support plate; a third profiling positioning groove imitating the outer contour of the bearing seat and a through groove penetrating downward from the bottom of the third profiling positioning groove are provided on the third support positioning block, and the through groove penetrates downward to the lower surface of the second support plate.

[0025] Further, the U-shaped hoop feeding mechanism includes a support bottom plate, a feeding magazine located above the support bottom plate, and a pushing module for pushing the U-shaped hoop at the bottom of the feeding magazine outwards along the support bottom plate.

[0026] Further, a limiting chute is provided on the support bottom plate, and a blocking and limiting block for blocking and positioning the U-shaped hoop is provided at the end. A positioning groove for precisely positioning the U-shaped hoop is formed between the blocking and limiting block and the limiting chute;

[0027] A feeding through groove that is vertically through and imitates the U-shaped hoop is provided in the feeding magazine, and the bottom of the feeding through groove communicates with the limiting chute;

[0028] The pushing module includes a fourth driving member fixed below the support bottom plate and a pushing plate driven by the fourth driving member to push the U-shaped hoop along the limiting chute; a fourth profiling positioning groove imitating the bent part area of the U-shaped hoop is provided at the outer end of the pushing plate.

[0029] Further, the U-shaped hoop receiving and assembling mechanism includes a fifth driving member, a third support plate driven by the fifth driving member to move to the lower part of the second jig after receiving the U-shaped hoop at the receiving position, a bracket fixed on the third support plate, a limiting seat fixed on the top of the bracket and having a vertically through limiting channel inside, a sixth driving member fixed below the third support plate, and a support pallet driven by the sixth driving member to move up and down in the limiting channel; a fifth profiling positioning groove imitating the U-shaped hoop and precisely positioning the U-shaped hoop is provided at the top end of the support pallet.

[0030] Further, the U-shaped hoop feeding mechanism includes a first XZ transfer module for realizing left-right and up-down movements, a fourth support plate arranged at the movable end of the first XZ transfer module, a seventh driving member fixed on the fourth support plate, a fifth support plate driven by the seventh driving member to rotate around a horizontal axis, and a pair of second clamping jaws fixed on the fifth support plate.

[0031] Further, the lock hoop block assembling and handling mechanism includes a second XZ transfer module for realizing left-right and up-down movements, a sixth support plate arranged at the movable end of the second XZ transfer module, a third clamping jaw fixed on the sixth support plate and used for clamping the lock hoop block, and an elastic positioning component fixed on the sixth support plate and used for inserting into the perforations on both sides of the lock hoop block; the elastic positioning component includes a fixed sleeve fixed on the sixth support plate, a positioning rod movably installed up and down on the fixed sleeve, and a spring arranged in the fixed sleeve and pressing down the positioning rod to keep it extending downward.

[0032] Further, a positioning mechanism for positioning the two rod-shaped parts of the U-shaped hoop after the U-shaped hoop is lifted to a set height position is also arranged at the U-shaped hoop assembling station; there are two groups of the positioning mechanisms, which are arranged oppositely left and right on both sides of the second fixture, and it includes an eighth driving member, a seventh support plate driven by the eighth driving member to move left and right, and a pair of positioning clamping blocks fixed on the seventh support plate, and semicircular grooves are arranged on the positioning clamping blocks.

[0033] Compared with the prior art, the beneficial effects of an automatic assembling device for a bearing seat assembly of a solar photovoltaic bracket of the present invention are as follows: realizing the automatic assembly of the bearing seat assembly, greatly improving the production efficiency, reducing the labor intensity, and saving costs. Specifically:

[0034] (1) By cleverly designing the structure of the first fixture, the waist-round bracket is supported and positioned through the first support positioning block, and two second support positioning blocks are slidably arranged on the front and rear sides of the first support positioning block to realize the support and positioning of the two bearing seat modules; when the two second support positioning blocks are located at positions far from the first support positioning block, it is convenient to place the bearing seat modules, and when the two second support positioning blocks are located at positions close to the first support positioning block, it is convenient to realize the assembly of the two bearing seat modules and the middle waist-round bracket, laying an important foundation for realizing the automatic assembly of the bearing seat assembly;

[0035] (2) By cleverly designing the second fixture in cooperation with the U-shaped hoop feeding and assembling mechanism, the automatic feeding and automatic assembly of the U-shaped hoop are realized; the accurate positioning of the bearing seat is realized by using the second fixture, and in cooperation with the through groove design in the second fixture, it is convenient for the U-shaped hoop to be lifted and assembled onto the bearing seat from the bottom, and the entire bearing seat module can be removed from the second fixture after the nut is screwed;

[0036] (3) The U-shaped hoop uses a magazine-type feeding method. Each time, a U-shaped hoop is horizontally pushed out by a pusher module. Then, the U-shaped hoop feeding mechanism grabs the U-shaped hoop in the horizontal state and flips it to the vertical state, and places it into a vertical limiting channel. At the bottom of the limiting channel, there is a support pallet that moves up and down. The U-shaped hoop is lifted upward by the upward movement of the support pallet to achieve assembly.

[0037] (4) Above the U-shaped hoop assembly station, a lock hoop block feeding and handling mechanism and a lock nut mechanism are configured. In cooperation with the positioning mechanism, precise positioning of the two rod-shaped upper parts of the U-shaped hoop is achieved. The lock hoop block feeding and handling mechanism is used to realize the automatic feeding and handling of the lock hoop block, and accurately assemble the lock hoop block onto the U-shaped hoop. Then, the lock nut mechanism is used to complete the nut screwing, realizing the automated assembly of the bearing seat module.

[0038] (5) At the manual binding belt station, a pushing mechanism is set to push two second support positioning blocks towards the first support positioning block, facilitating the manual binding operation of the binding belt. This greatly improves the assembly efficiency of the bearing seat assembly and the binding belt efficiency, and reduces the production cost and labor intensity. Description of the Drawings

[0039] Figure 1 It is an exploded structural schematic diagram of the bearing seat assembly in the embodiment of the present invention;

[0040] Figure 2 It is a binding structural schematic diagram of the bearing seat assembly after assembly in the embodiment of the present invention;

[0041] Figure 3 It is an overall layout structural schematic diagram of the embodiment of the present invention;

[0042] Figure 4 It is a structural schematic diagram of the first fixture in the embodiment of the present invention;

[0043] Figure 5 It is a structural schematic diagram when the bearing seat assembly in the embodiment of the present invention is placed on the first fixture for assembly;

[0044] Figure 6 It is a structural schematic diagram of the oval bracket feeding mechanism in the embodiment of the present invention;

[0045] Figure 7 It is a structural schematic diagram of the support rod assembly mechanism in the embodiment of the present invention;

[0046] Figure 8 It is a structural schematic diagram when the support rod assembly mechanism inserts the support rod in the embodiment of the present invention;

[0047] Figure 9 It is a top view structural schematic diagram of the bearing seat module assembly feeding unit in the embodiment of the present invention;

[0048] Figure 10 Schematic three-dimensional structure diagram of the bearing block module assembly and loading unit in the embodiment of the present invention;

[0049] Figure 11 Schematic structure diagram of the second fixture in the embodiment of the present invention;

[0050] Figure 12 Schematic structure diagram of the U-shaped hoop feeding, loading and assembling in the embodiment of the present invention;

[0051] Figure 13 Schematic structure diagram of the U-shaped hoop feeding mechanism in the embodiment of the present invention;

[0052] Figure 14 Schematic structure diagram of the U-shaped hoop receiving and assembling mechanism in the embodiment of the present invention;

[0053] Figure 15 Partial schematic structure diagram of the U-shaped hoop receiving and assembling mechanism in the embodiment of the present invention;

[0054] Figure 16 Partial schematic structure diagram of the lock hoop block assembling and handling mechanism in the embodiment of the present invention;

[0055] Figure 17 Schematic structure diagram of the positioning mechanism in the embodiment of the present invention;

[0056] The numbers in the figure represent:

[0057] 100 - Automatic assembling equipment for the bearing block assembly of the solar photovoltaic bracket;

[0058] 200 - Bearing block assembly, 201 - Oval bracket, 2011 - Through hole, 202 - Bearing block module, 2021 - Bearing block, 2022 - U-shaped hoop, 2023 - Lock hoop block, 20231 - Limit hole, 2024 - Nut, 203 - Support rod, 204 - Right-angle connecting block; 301 - First tie strap, 302 - Second tie strap, 303 - Third tie strap;

[0059] 1 - First conveyor line;

[0060] 2 - First fixture, 21 - First support plate, 22 - First support positioning block, 221 - First profiling positioning groove, 222 - Support rod bearing groove, 223 - Tape passing notch, 23 - Second support positioning block, 231 - Second profiling positioning groove, 232 - Accommodating groove, 233 - Avoidance notch, 24 - Elastic reset assembly;

[0061] 3 - Oval bracket feeding mechanism, 31 - Oval bracket feeding conveyor line, 32 - First handling mechanism, 321 - First jaw;

[0062] 4 - Support rod assembly mechanism, 41 - Vibration disk, 42 - Dislocation feeding module, 421 - Material receiving plate, 4211 - Material receiving groove, 422 - Third driving part, 43 - Docking module, 431 - Bridging pipe, 432 - First driving part, 44 - Pushing module, 441 - Push rod, 442 - Second driving part;

[0063] 5 - Bearing seat module assembly feeding unit, 51 - Second conveying line, 52 - Second fixture, 521 - Second support plate, 522 - Third support positioning block, 5221 - Third profiling positioning groove, 5222 - Through groove, 53 - Bearing seat feeding mechanism, 531 - Bearing seat feeding conveying line, 532 - Third handling mechanism, 54 - Second handling mechanism, 55 - U - shaped hoop feeding mechanism, 551 - Support bottom plate, 5511 - Limit sliding groove, 5512 - Blocking limit block, 552 - Feeding magazine, 5521 - Feeding through groove, 553 - Pushing module, 5531 - Fourth driving part, 5532 - Pushing plate, 5533 - Fourth profiling positioning groove, 56 - U - shaped hoop receiving and assembling mechanism, 561 - Fifth driving part, 562 - Third support plate, 563 - Bracket, 564 - Limit seat, 5641 - Limit channel, 565 - Sixth driving part, 566 - Support tray, 5661 - Fifth profiling positioning groove, 57 - U - shaped hoop feeding mechanism, 571 - First XZ transfer module, 572 - Fourth support plate, 573 - Seventh driving part, 574 - Fifth support plate, 575 - Second clamping jaw, 58 - Locking hoop block feeding conveying line, 59 - Locking hoop block assembling and handling mechanism, 591 - Second XZ transfer module, 592 - Sixth support plate, 593 - Third clamping jaw, 594 - Elastic positioning component, 5941 - Fixed sleeve, 5942 - Positioning rod, 5943 - Spring, 510 - Lock nut mechanism, 511 - Positioning mechanism, 5111 - Eighth driving part, 5112 - Seventh support plate, 5113 - Positioning clamp block, 5114 - Pressing block;

[0064] 6 - Pushing mechanism; 10 - Manual tying belt station; 20 - Product discharging station. Specific embodiments

[0065] Embodiment 1:

[0066] Please refer to Figures 1 - 17 , this embodiment is an automatic assembly device 100 for a bearing seat assembly of a solar photovoltaic bracket, which is used to assemble scattered parts into a bearing seat assembly 200. It includes a first conveying line 1, a first fixture 2 conveyed on the first conveying line 1, an oval bracket feeding mechanism 3 arranged along the first conveying line 1, a support rod assembly mechanism 4, a bearing seat module assembly feeding unit 5, a manual tying belt station 10, and a product discharging station 20.

[0067] The first conveyor line 1 is an up-and-down circulating conveyor line, and lifting mechanisms are provided at both ends to realize the recycling of the first fixture 2.

[0068] In this embodiment, in order to facilitate the subsequent assembly of the oval bracket 201 and the bearing block module 202, the first fixture 2 is optimized in this embodiment. The first fixture 2 is used to support and accurately position the oval bracket 201, the bearing block module 202, and the support rod 203. Specifically, the first fixture 2 includes a first support plate 21, a first support and positioning block 22 fixed on the first support plate 21, a pair of second support and positioning blocks 23 slidably disposed on the first support plate 21 and located on the front and rear sides of the first support and positioning block 22, and an elastic reset assembly 24 for holding the second support and positioning blocks 23 in the first position.

[0069] The first support and positioning block 22 is used to support and position the oval bracket 201 and the support rod 203. It includes a first profiling positioning groove 221 that profiles the middle section of the oval bracket 201 and support rod bearing grooves 222 located on the front and rear sides of the first profiling positioning groove 221 and used to support the support rod 203. The first profiling positioning groove 221 has the functions of front-back positioning and left-right positioning of the oval bracket 201. The oval bracket 201 is placed on the first support and positioning block 22, and its bottom is raised by a certain height, leaving space below for tying the third cable tie 303.

[0070] The second support and positioning block 23 is used to support and position the bearing block module 202. It includes a second profiling positioning groove 231 that profiles the outer peripheral contour of the bearing block 2021 and a receiving groove 232 extending downward from the bottom of the second profiling positioning groove 231 and used to receive the U-shaped hoop 2022. The second profiling positioning groove 231 has the functions of front-back positioning and left-right positioning of the bearing block 2021. The bearing block module 202 is placed on the second support and positioning block 23 and is in corresponding height position cooperation with the oval bracket 201 placed on the first support and positioning block 22, facilitating subsequent assembly.

[0071] When the second support and positioning block 23 is in the first position, it is used to receive and position the placement of the bearing block module 202, and at the same time plays an avoidance role when the support rod 203 is inserted into the through hole 2011 of the oval bracket 201. A pushing mechanism 6 for pushing the two second support and positioning blocks 23 towards the first support and positioning block 22 to the second position is provided at the manual cable tie station 10. In the second position, both ends of the support rod 203 are inserted into the bearing block module 202, specifically inserted into the limiting holes 20231 on the locking hoop block 2023, facilitating the staff to perform the tying operation.

[0072] To further facilitate the operation of the staff in tying the first cable tie 301, through holes 223 that penetrate from front to back are provided at corresponding positions on the first support positioning block 22 and the second support positioning block 23; the top of the through hole 223 penetrates upward through the first support positioning block 22 or the second support positioning block 23, and the bottom extends downward by a set depth. By making the through hole 223 penetrate from front to back, it is convenient for the first cable tie 301 to penetrate through the two bearing block modules 202 and the oval bracket 201 from the bottom in the front-back direction; by setting the through hole 223 as a through structure upward, after tying the first cable tie 301, the entire bearing block assembly 200 can be taken out from the first fixture 2.

[0073] The oval bracket feeding mechanism 3 is mainly used to realize the automatic feeding of the oval bracket 201, and it includes an oval bracket feeding conveyor line 31 and a first handling mechanism 32 that transports and places the oval bracket 201 from the oval bracket feeding conveyor line 31 into the first fixture 2. The first handling mechanism 32 can be driven by a multi-axis robot or a three-dimensional linear transfer module to achieve three-dimensional handling. A first jaw 321 for clamping the oval bracket 201 is provided at the movable end of the first handling mechanism 32.

[0074] The support rod assembling mechanism 4 is mainly used to realize the automatic assembly of the support rod 203, and it includes a vibrating disk 41 for realizing the automatic feeding of the support rod 203, a misalignment feeding module 42 arranged at the output end of the vibrating disk 41, and a docking module 43 and a pushing module 44 oppositely arranged on the front and rear sides of the misalignment feeding module 42; the docking module 43 includes a bridging pipe 431 for docking the misalignment feeding module 42 with the support rod bearing groove 222 in the first fixture 2 and a first driving member 432 for driving the bridging pipe 431 to move up and down; the pushing module 44 includes a push rod 441 for pushing the support rod 203 in the misalignment feeding module 42 through the bridging pipe 431 and into the support rod bearing groove 222 to realize assembly and a second driving member 442 for driving the push rod 441 to move back and forth.

[0075] The misalignment feeding module 42 includes a receiving plate 421 and a third driving member 422 for driving the receiving plate 421 to move between a third position and a fourth position in the left-right direction; a through receiving groove 4211 is provided on the receiving plate 421, and the receiving plate 421 is docked with the end of the vibrating disk 41 at the third position and docked with the bridging pipe 431 at the fourth position, and the push rod 441 is aligned with the receiving groove 4211.

[0076] The bridging pipe 431 has a channel that runs through from front to back, facilitating the passage of the support rod 203 and enabling it to move from the material receiving groove 4211 to the support rod bearing groove 222. The bridging pipe 431 avoids interference in position when in the high position; when in the low position, one end is docked with the material receiving groove 4211 at the fourth position, and the other end is docked with the support rod bearing groove 222. A relief notch 233 for the bridging pipe 431 to descend to the low position is also provided on the second support positioning block 23 near the support rod assembly mechanism 4.

[0077] The bearing block module assembly and feeding unit 5 includes a second conveyor line 51, a second fixture 52 conveyed on the second conveyor line 51, a bearing block feeding mechanism 53 arranged along the second conveyor line 51, a U-shaped hoop assembly station, and a second handling mechanism 54 for transporting the bearing block module 202 on the second conveyor line 51 to the first conveyor line 1.

[0078] The second conveyor line 51 is a U-shaped circulating conveyor line, enabling the recycling of the second fixture 52. The second conveyor line 51 is vertically distributed with the first conveyor line 1.

[0079] To facilitate the automated assembly of the bearing block module 202, the structure of the second fixture 52 is optimized in this embodiment. Specifically, the second fixture 52 includes a second support plate 521 and a third support positioning block 522 arranged on the second support plate 521; a third profiling positioning groove 5221 that profiles the outer peripheral contour of the bearing block 2021 and a through groove 5222 that penetrates downward from the bottom of the third profiling positioning groove 5221 are provided on the third support positioning block 522, and the through groove 5222 penetrates downward to the lower surface of the second support plate 521. The third profiling positioning groove 5221 has a front-back positioning function and a left-right positioning function for the bearing block 2021. The through groove 5222 is used for the U-shaped hoop 2022 to pass upward through the bearing block 2021 placed in the third profiling positioning groove 5221 from the bottom of the second fixture 52, and after the locking hoop block 2023 on the U-shaped hoop 2022 is installed, the U-shaped hoop 2022 can be taken out upward from the second fixture 52 together with it.

[0080] The bearing block feeding mechanism 53 includes a bearing block feeding conveyor line 531 and a third handling mechanism 532 for transporting and placing the bearing block 2021 from the bearing block feeding conveyor line 531 into the second fixture 52. The second handling mechanism 54 and the third handling mechanism 532 can be driven by a multi-axis robot or a two-dimensional linear transfer module to achieve two-dimensional handling.

[0081] At the U-shaped hoop assembly station, there are a U-shaped hoop feeding mechanism 55, a U-shaped hoop receiving and assembling mechanism 56 that horizontally moves to the lower side of the second jig 52 after receiving the U-shaped hoop 2022 and pushes the U-shaped hoop 2022 upward through the bearing block 2021, a U-shaped hoop loading mechanism 57 that clamps the U-shaped hoop 2022 from the output end of the U-shaped hoop feeding mechanism 55 and then places it on the U-shaped hoop in the U-shaped hoop receiving and assembling mechanism 56, a locking hoop block feeding and conveying line 58 beside the second conveying line 51, a locking hoop block assembling and handling mechanism 59 that transports the locking hoop block 2023 from the locking hoop block feeding and conveying line 58 to the second jig 52, and a nut locking mechanism 510 that locks the nut 2024 onto the U-shaped hoop 2022.

[0082] The U-shaped hoop feeding mechanism 55 includes a support bottom plate 551, a feeding magazine 552 located above the support bottom plate 551, and a pushing module 553 that pushes the U-shaped hoop 2022 at the bottom of the feeding magazine 552 outward along the direction of the support bottom plate 551. A limiting chute 5511 is provided on the support bottom plate 551, and a blocking and limiting block 5512 for blocking and positioning the U-shaped hoop 2022 is provided at the end. A positioning groove for accurately positioning the U-shaped hoop 2022 is formed between the blocking and limiting block 5512 and the limiting chute 5511, ensuring that the positions of the U-shaped hoops 2022 output by the U-shaped hoop feeding mechanism 55 are unified and have high precision. A feeding through groove 5521 that is vertically through and is shaped like the U-shaped hoop 2022 is provided in the feeding magazine 552. The bottom of the feeding through groove 5521 communicates with the limiting chute 5511, and the height of the limiting chute 5511 is equivalent to the thickness of the U-shaped hoop 2022, so as to ensure that the pushing module 553 can and can only push out one U-shaped hoop 2022 each time. The pushing module 553 includes a fourth driving member 5531 fixed below the support bottom plate 551 and a pushing plate 5532 that is driven by the fourth driving member 5531 to push the U-shaped hoop 2022 along the limiting chute 5511. A fourth profiling positioning groove 5533 that is shaped like the bent part area of the U-shaped hoop 2022 is provided at the outer end of the pushing plate 5532.

[0083] The U-shaped hoop feeding and assembling mechanism 56 includes a fifth driving member 561, a third support plate 562 driven by the fifth driving member 561 to move between a fifth position and a sixth position, a bracket 563 fixed on the third support plate 562, a limit seat 564 fixed on the top of the bracket 563 and having a vertically penetrating limit channel 5641 inside, a sixth driving member 565 fixed below the third support plate 562, and a support pallet 566 driven by the sixth driving member 565 to move up and down in the limit channel 5641. The top end of the support pallet 566 is provided with a fifth profiling positioning groove 5661 that profiles the U-shaped hoop 2022 and precisely positions the U-shaped hoop 2022, so as to ensure that the U-shaped hoop 2022 can accurately and smoothly pass through the round hole on the bearing block 2021. At the fifth position, the support pallet 566 is in the low position. The U-shaped hoop feeding mechanism 57 places the U-shaped hoop 2022 in a vertical state into the limit channel 5641. The U-shaped hoop 2022 falls along the limit channel 5641 into the fifth profiling positioning groove 5661 and is supported by the support pallet 566. Then the third support plate 562 moves to the sixth position. At the sixth position, the upper part of the limit channel 5641 is butted against the through slot 5222 of the second jig 52. The support pallet 566 moves upward to the high position and jacks up the U-shaped hoop 2022 along the limit channel 5641, so that the U-shaped hoop 2022 accurately passes through the round hole on the bearing block 2021 and reaches the set height position, waiting for the assembly of the locking hoop block 2023 and the nut 2024. After the assembly is completed, the support pallet 566 returns to the low position and returns to the fifth position to perform the next cycle of actions.

[0084] The U-shaped hoop feeding mechanism 57 includes a first XZ transfer module 571 that realizes left-right and up-down movement, a fourth support plate 572 arranged at the movable end of the first XZ transfer module 571, a seventh driving member 573 fixed on the fourth support plate 572, a fifth support plate 574 driven by the seventh driving member 573 to rotate around a horizontal axis, and a pair of second clamping jaws 575 fixed on the fifth support plate 574. The first XZ transfer module 571 is mainly used to realize the two-dimensional transfer drive of the second clamping jaws 575. The seventh driving member 573 is mainly used to clamp the U-shaped hoop 2022 in a horizontal state and then flip it to an upright state so that it can be placed into the limit channel 5641. By providing a pair of second clamping jaws 575 for clamping the two free ends of the U-shaped hoop 2022, the clamping of the U-shaped hoop 2022 is ensured to be stable and reliable.

[0085] The locking hoop block assembly handling mechanism 59 includes a second XZ transfer module 591 that realizes left - right and up - down movements, a sixth support plate 592 arranged at the movable end of the second XZ transfer module 591, a third jaw 593 fixed on the sixth support plate 592 and used for clamping the locking hoop block 2023, and an elastic positioning component 594 fixed on the sixth support plate 592 and used for inserting into the perforations on both sides of the locking hoop block 2023. The elastic positioning component 594 includes a fixed sleeve 5941 fixed on the sixth support plate 592, a positioning rod 5942 movably installed up and down on the fixed sleeve 5941, and a spring 5943 arranged inside the fixed sleeve 5941 and pressing downward on the positioning rod 5942 to keep it extending downward. When clamping the locking hoop block 2023, the positioning rod 5942 is used to extend into the perforations on both sides of the locking hoop block 2023 to accurately position the locking hoop block 2023; when installing the locking hoop block 2023, the bottom of the positioning rod 5942 is used to butt against the top of the U - shaped hoop 2022. As the sixth support plate 592 continues to descend, the fixed sleeve 5941 continues to move downward relative to the positioning rod 5942, the positioning rod 5942 retracts into the fixed sleeve 5941, and the fixed sleeve 5941 pushes the locking hoop block 2023 downward, pushing the locking hoop block 2023 from the positioning rod 5942 onto the U - shaped hoop 2022, preventing the locking hoop block 2023 from failing to fall smoothly under its own weight and ensuring the accurate and reliable assembly of the locking hoop block 2023.

[0086] In order to ensure that the locking hoop block 2023 can be accurately assembled onto the U - shaped hoop 2022, in this embodiment, a positioning mechanism 511 is also provided at the U - shaped hoop assembly station to accurately position the two rod - shaped parts of the U - shaped hoop 2022 after the U - shaped hoop 2022 is lifted to the set height position. There are two groups of the positioning mechanism 511, which are arranged relatively left and right on the left and right sides of the second fixture 52. It includes an eighth driving part 5111, a seventh support plate 5112 driven by the eighth driving part 5111 to move left and right, and a pair of positioning clamp blocks 5113 fixed on the seventh support plate 5112. The positioning clamp blocks 5113 are provided with semi - circular grooves, which are shaped to fit the rod - shaped parts of the U - shaped hoop 2022. A pressing block 5114 for pressing the bearing seat 2021 downward is also arranged on the seventh support plate 5112 to prevent the bearing seat 2021 from being lifted upward when the U - shaped hoop 2022 is lifted upward, ensuring the position stability of the bearing seat 2021 on the second fixture 52.

[0087] The locking hoop block assembly handling mechanism 59 can be driven by a multi - axis robot or a three - dimensional linear transfer module to achieve three - dimensional handling.

[0088] The lock nut mechanism 510 and the U - shaped hoop feeding mechanism 57 are arranged opposite to each other front and back on both sides of the U - shaped hoop assembly station. The lock nut mechanism 510 includes a nut feeding module and a lock nut module, which can adopt the structures in the prior art and will not be elaborated in this embodiment.

[0089] In this embodiment, the bearing block feeding and conveying line 531 and the lock hoop block feeding and conveying line 58 are parallel to the first conveying line 1 and are located on the same side of the second conveying line 51. In other embodiments, the feeding of the bearing block 2021 and the lock hoop block 2023 can also adopt the form of automatic feeding by a tray, equipped with the functions of automatically separating full-load stacked trays and automatically stacking and recycling empty trays, and equipped with a three-dimensional linear transfer module to realize the automatic feeding and handling of the bearing block 2021 or the lock hoop block 2023. The feeding form of the bearing block 2021 and the lock hoop block 2023 in this embodiment is not limited.

[0090] The working process of the bearing block module assembly feeding unit 5 is as follows: The empty second fixture 52 moves to the bearing block feeding mechanism 53, and the bearing block 2021 is automatically fed through the bearing block feeding mechanism 53; the second fixture 52 moves to the U-shaped hoop assembly station, and the U-shaped hoop feeding mechanism 55 automatically feeds and outputs the U-shaped hoop 2022 in a horizontal state; the U-shaped hoop feeding mechanism 57 clamps the U-shaped hoop 2022 in the horizontal state and flips it to the vertical state, and then places it into the limit seat 564 in the U-shaped hoop receiving and assembling mechanism 56 and sits on the support pallet 566; the limit seat 564 and the support pallet 566 jointly move the U-shaped hoop 2022 below the second fixture 52, and the support pallet 566 moves upward to jack the U-shaped hoop 2022 through the bearing block 2021 to a set height; the positioning clamp blocks 5113 in the two positioning mechanisms 511 approach each other to accurately position and fix the rod-shaped part of the U-shaped hoop 2022; the lock hoop block assembly handling mechanism 59 clamps a lock hoop block 2023 above the U-shaped hoop 2022 and then downwardly sleeves the lock hoop block 2023 on the rod-shaped part of the U-shaped hoop 2022. After the lock hoop block 2023 enters the rod-shaped section of the U-shaped hoop 2022, the positioning clamp blocks 5113 withdraw, and the lock hoop block 2023 drops to the low position; the lock hoop block assembly handling mechanism 59 withdraws and returns to the material taking position, and then the lock nut mechanism 510 moves above the U-shaped hoop 2022 and screws two nuts onto the rod-shaped part of the U-shaped hoop 2022 respectively to complete the automatic assembly of the bearing block module 202; the second fixture 52 moves to the second handling mechanism 54, and the bearing block module 202 is transported from the second conveying line 51 to the first conveying line 1 through the second handling mechanism 54 and placed on the second support positioning block 23 in the first fixture 2, and accurate positioning is achieved through the second profiling positioning groove 231.

[0091] A pushing mechanism 6 is provided at the manual binding belt station 10. There are two pushing mechanisms 6, which are arranged opposite to each other front and back on both sides of the first fixture 2, and are mainly used to push the two second support positioning blocks 23 towards the middle to approach the first support positioning block 22, facilitating the operator to bind the belt. The pushing mechanism 6 includes a cylinder (not marked in the figure) and a push plate (not marked in the figure) driven by the cylinder to perform horizontal movement.

[0092] To improve the assembly efficiency, multiple bearing seat module assembly loading units 5 and manual tie - strap workstations 10 can be set up. The manual tie - strap workstations 10 can be flexibly configured with operators according to the number of tie - straps to be tied, improving the tie - strap tying efficiency.

[0093] At the product unloading workstation 20, a fourth handling mechanism (not marked in the figure) for taking out the tied bearing seat assembly 200 from the second fixture 52 is provided to achieve automatic unloading.

[0094] The production method of an automatic assembly device 100 for a bearing seat assembly of a solar photovoltaic bracket in this embodiment includes the following steps:

[0095] S1. The first handling mechanism 32 clamps the oval bracket 201 from the oval bracket feeding conveyor line 31 and places it on the first support and positioning block 22 of the first fixture 2.

[0096] S2. The first fixture 2 moves on the first conveyor line 1 to the support rod assembly mechanism 4. The vibrating disk 41 automatically outputs the support rod 203 in a horizontal state. The support rod 203 is input into the receiving groove 4211 of the receiving plate 421, and then through misaligned feeding to the pushing module 44. The bridging pipe 431 descends to a low position. The receiving groove 4211, the bridging pipe 431, and the support rod bearing groove 222 together form a sequentially connected conveying channel. The push rod 441 pushes the support rod 203 along this conveying channel into the support rod bearing groove 222, and at the same time passes through the oval bracket 201 to complete the automatic installation of the support rod 203.

[0097] S3. The first fixture 2 moves to the bearing seat module assembly loading unit 5 to perform loading of the bearing seat module 202.

[0098] S31. Complete the assembly of the bearing seat module 202: The bearing seat feeding mechanism 53 places the bearing seat 2021 on the second fixture 52; the second fixture 52 moves to the U-shaped hoop assembly station, and the U-shaped hoop feeding mechanism 55 automatically outputs the U-shaped hoop 2022 in a horizontal state; the U-shaped hoop feeding mechanism 57 grabs the U-shaped hoop 2022 in a horizontal state, flips it to an upright state, and then places it into the limit seat 564 in the U-shaped hoop receiving and assembling mechanism 56 and sits on the support pallet 566; the limit seat 564 and the support pallet 566 jointly move the U-shaped hoop 2022 below the second fixture 52, and the support pallet 566 moves upward to lift the U-shaped hoop 2022 through the bearing seat 2021 to a set height; the two positioning clamp blocks 5113 move closer to each other to accurately position and fix the rod-shaped part of the U-shaped hoop 2022; the lock hoop block assembling and handling mechanism 59 grabs the lock hoop block 2023 above the U-shaped hoop 2022, and then moves downward to sleeve the lock hoop block 2023 on the rod-shaped part of the U-shaped hoop 2022 and drops to a low position; the lock nut mechanism 510 screws two nuts 2024 onto the rod-shaped part of the U-shaped hoop 2022 respectively to complete the automatic assembly of the bearing seat module 202;

[0099] S32. The second handling mechanism 54 transports and places the bearing seat module 202 on the second fixture 52 onto the second support positioning block 23 in the first fixture 2 to complete the feeding of the bearing seat module 202;

[0100] S4. The first fixture 2 moves to the manual tying belt station 10, the pushing mechanism pushes the two second support positioning blocks 23 closer to the middle, the operator completes the tying of the first tie strap 301 and the second tie strap 302, and ties the right-angle connecting block 204 to the bottom of the oval bracket 201 with the third tie strap 303 to complete the assembly tying of the bearing seat assembly 200;

[0101] S5. The fourth handling mechanism takes out the tied bearing seat assembly 200 from the first fixture 2 to achieve automatic blanking.

[0102] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An automatic assembly equipment for solar photovoltaic bracket bearing seat assembly, characterized by: The bearing seat assembly includes a waist-round bracket, a support rod, a bearing seat module and a right-angle connection block, and the bearing seat module includes a bearing seat, a U-shaped hoop, a locking hoop block and a nut; the assembly equipment includes: A first conveyor line, on which a first jig is conveyed, the first jig comprises a first support plate, a first support positioning block fixed on the first support plate for supporting a waist-round bracket and a support rod, and a pair of second support positioning blocks slidably arranged on both sides of the first support positioning block and used to carry two bearing seat modules; a manual binding station and a product unloading station are provided at the end of the first conveyor line; The waist-shaped bracket feeding mechanism realizes automatic feeding and loading of the waist-shaped bracket, and places the waist-shaped bracket on the first supporting positioning block; Support rod assembly mechanism, realizing automatic feeding and insertion of support rods; The bearing seat module assembly and loading unit comprises a second conveyor line, a second jig conveyed on the second conveyor line, a bearing seat loading mechanism arranged along the second conveyor line, a U-shaped hoop assembly station, and a second conveying mechanism for conveying the bearing seat module on the second conveyor line to the first conveyor line; the U-shaped hoop assembly station is provided with a U-shaped hoop feeding mechanism, a U-shaped hoop material assembly mechanism that receives the U-shaped hoop and then moves horizontally to the bottom of the second jig and pushes the U-shaped hoop upward through the bearing seat, a U-shaped hoop feeding mechanism that clamps the U-shaped hoop from the output end of the U-shaped hoop feeding mechanism and then places it in the U-shaped hoop material assembly mechanism, a locking hoop block feeding conveyor line located beside the second conveyor line, a locking hoop block assembly and handling mechanism that conveys the locking hoop block from the locking hoop block feeding conveyor line to the second jig, and a locking nut mechanism that locks the nut on the U-shaped hoop; The second fixture includes a second support plate and a third support positioning block arranged on the second support plate; the third support positioning block is provided with a third contoured positioning groove that conforms to the outer peripheral contour of the bearing seat and a through groove that penetrates downward from the bottom of the third contoured positioning groove, and the through groove penetrates downward to the lower surface of the second support plate.

2. The automatic assembly equipment for the solar photovoltaic bracket bearing seat assembly according to claim 1, characterized in that: The first fixture further comprises an elastic reset component for maintaining the second supporting positioning block at a set position; The first support positioning block includes a first contoured positioning groove contoured to the middle section of the waist-round bracket and a support rod bearing groove located at both sides of the first contoured positioning groove and used to support the support rod; the waist-round bracket is placed on the first support positioning block, and its bottom is raised to a set height, reserving space below for binding the right-angle connecting block; The second supporting positioning block comprises a second contoured positioning groove contoured to the outer peripheral contour of the bearing seat and an accommodating groove extending downward from the bottom of the second contoured positioning groove and used for accommodating a U-shaped hoop.

3. The automatic assembly equipment for the solar photovoltaic bracket bearing seat assembly according to claim 1 or 2, characterized in that: The manual binding belt station is provided with a pushing mechanism for pushing the two second supporting and positioning blocks toward the first supporting and positioning blocks.

4. The automatic assembly equipment for the solar photovoltaic bracket bearing seat assembly according to claim 2, characterized in that: The first supporting and positioning block and the second supporting and positioning block are provided with front-to-back through-belt slots at corresponding positions; the top of the through-belt slots penetrates upward through the first supporting and positioning block or the second supporting and positioning block, and the bottom extends downward to a set depth.

5. The automatic assembly equipment for the solar photovoltaic bracket bearing seat assembly according to claim 1, characterized in that: The support rod assembly mechanism includes a vibration plate for realizing automatic feeding of the support rod, a dislocation material distribution module arranged at the output end of the vibration plate, and a docking module and a pushing module arranged at the front and rear sides of the dislocation material distribution module; The dislocation material distribution module comprises a material receiving plate and a third driving member for driving the material receiving plate to move in the left-right direction to realize dislocation material distribution; the material receiving plate is provided with a material receiving groove which is through-through from front to back; The docking module comprises a bridge pipe docking the material receiving trough and the first supporting positioning block and a first driving member driving the bridge pipe to move up and down; The pushing module comprises a push rod which pushes the support rod in the receiving trough through the bridging pipe into the first supporting positioning block, and a second driving member which drives the push rod to move forward and backward.

6. The automatic assembly equipment for the solar photovoltaic bracket bearing seat assembly according to claim 1, characterized in that: The U-shaped hoop feeding mechanism comprises a supporting bottom plate, a feeding clip located above the supporting bottom plate, and a pushing module for pushing the U-shaped hoop at the bottom of the feeding clip outward along the supporting bottom plate; The support bottom plate is provided with a limited sliding groove, and a blocking and limiting block for blocking and positioning the U-shaped hoop is provided at the end, and a positioning groove for accurately positioning the U-shaped hoop is formed between the blocking and limiting block and the limited sliding groove; The feeding clip is provided with a feeding slot which is through-through and shaped like the U-shaped hoop, and the bottom of the feeding slot is connected to the limiting slide slot; The pushing module includes a fourth driving member fixed under the supporting base plate and a pushing plate driven by the fourth driving member to push the U-shaped hoop out along the limiting slide groove; the outer end of the pushing plate is provided with a fourth contoured positioning groove contoured to the bending area of ​​the U-shaped hoop.

7. The automatic assembly equipment for the solar photovoltaic bracket bearing seat assembly according to claim 1, characterized in that: The U-shaped hoop material connection assembly mechanism includes a fifth driving member, a third support plate driven by the fifth driving member to receive the U-shaped hoop at the material connection position and then move to the bottom of the second fixture, a bracket fixed on the third support plate, a limit seat fixed on the top of the bracket and having a limit channel running vertically therethrough, a sixth driving member fixed under the third support plate, and a support plate driven by the sixth driving member to move up and down in the limit channel; a fifth contour positioning groove is provided on the top of the support plate for contouring with the U-shaped hoop and accurately positioning the U-shaped hoop.

8. The automatic assembly equipment for the solar photovoltaic bracket bearing seat assembly according to claim 1, characterized in that: The U-shaped hoop feeding mechanism includes a first XZ transfer module that realizes left-right and up-and-down movement, a fourth support plate arranged at the movable end of the first XZ transfer module, a seventh driving member fixed on the fourth support plate, a fifth support plate driven by the seventh driving member to rotate around a horizontal axis, and a pair of second clamps fixed on the fifth support plate.

9. The automatic assembly equipment for the solar photovoltaic bracket bearing seat assembly according to claim 1, characterized in that: The locking hoop block assembly and handling mechanism includes a second XZ transfer module that realizes left-right and up-down movement, a sixth support plate arranged at the movable end of the second XZ transfer module, a third clamp fixed on the sixth support plate and used to clamp the locking hoop block, and an elastic positioning component fixed on the sixth support plate and used to be inserted into the through holes on both sides of the locking hoop block; the elastic positioning component includes a fixed sleeve fixed on the sixth support plate, a positioning rod movably installed on the fixed sleeve up and down, and a spring arranged in the fixed sleeve and pressing the positioning rod downward to keep it extending downward.

10. The automatic assembly equipment for the solar photovoltaic bracket bearing seat assembly according to claim 1, characterized in that: The U-shaped hoop assembly station is also provided with a positioning mechanism for positioning the two rod-shaped parts of the U-shaped hoop after the U-shaped hoop is lifted to a set height position; the positioning mechanism is provided with two groups, which are relatively arranged on both sides of the second fixture on the left and right sides, and include an eighth driving member, a seventh support plate driven by the eighth driving member to move left and right, and a pair of positioning clamps fixed on the seventh support plate, and the positioning clamps are provided with semicircular grooves.

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