Large plate auxiliary supporting mechanism and second positioning tool

Abstract

The utility model discloses a big board auxiliary support mechanism and second positioning frock, big board auxiliary support mechanism includes fifth support, big board auxiliary support cylinder and big board auxiliary unit, sets up fifth support on second workstation mesa, sets up big board auxiliary support cylinder on fifth support, and big board auxiliary support cylinder piston rod connects the fixed part of big board auxiliary unit, and big board auxiliary unit still includes elastic moving part, elastic extrusion part and locking part, and elastic extrusion part is contacted along the vertical to the moving part, and extrusion part and fixed part are rigidly locked by locking part. The utility model has the advantages that: elastic moving part is contacted with transmission side piece, at this moment, under the action of elastic extrusion part, elastic moving part can be closely attached on transmission side piece contact position, then through locking part, extrusion part extrudes elastic extrusion part, forms mechanical lock, this greatly increases the local rigidity of transmission side piece, thereby eliminates the phenomenon of shock sword and lets sword.

Description

Technical Field

[0001] This utility model relates to the field of glass deep processing technology, and in particular to a large-plate auxiliary support mechanism and a second positioning fixture. Background Technology

[0002] The glass deep processing line roller conveyor is a key piece of equipment that automatically conveys, positions, corrects, and starts / stops glass, connecting all the process equipment in the production line to realize the deep processing of glass.

[0003] Inline roller conveyors are typically composed of multiple connected roller conveyor units. Each roller conveyor unit consists of a roller conveyor frame, conveyor rollers, a drive motor, and a gear transmission system. With the development of the glass manufacturing industry, the requirements for the smoothness and precision of inline roller conveyor transport are becoming increasingly stringent, with the surface runout accuracy of the conveyor rollers being ≤0.2mm.

[0004] The main performance indicators of the connecting roller conveyor frame, which serves as the foundation for laying the conveyor rollers, are as follows: flatness of the mounting surface of the large plate on the drive side ≤ 0.15mm, flatness of the mounting surface of the channel steel on the non-drive side ≤ 0.1mm, parallelism between the mounting surface of the large plate on the drive side and the mounting surface of the non-drive side ≤ 0.15mm, height difference between the mounting surface of the large plate on the drive side and the mounting surface of the non-drive side ≤ 0.2mm, parallel alignment of the bearing mounting holes on the drive side and the bearing mounting holes on the non-drive side with a diagonal difference ≤ 1mm, and perpendicularity of the motor mounting plate on the drive side and the mounting surface of the large plate on the drive side ≤ 0.2mm. The technical indicators of the connecting roller conveyor frame directly affect the runout accuracy of the main conveyor roller surface.

[0005] The existing manufacturing process for roller conveyor frames is as follows:

[0006] Step 1. Prepare materials, including channel steel components, support leg components, motor mounting plate, set screw plate, transmission side plate, reinforcing rib plate, fixed-length rectangular tube and square tube body;

[0007] Step 2. Weld the transmission side large plate assembly, including the channel steel assembly, the transmission side large plate, and the reinforcing rib plate;

[0008] Step 3. Weld the transmission side panel components, including the transmission side plate assembly, support leg assembly, rectangular tube, motor mounting plate, and set screw plate;

[0009] Step 4. Weld the non-drive side panels, including the channel steel assembly, the support leg assembly, and the rectangular tube;

[0010] Step 5. Assemble and weld the transmission side plate, the non-transmission side plate, and the square tube body;

[0011] Step 6. CNC gantry milling: large plate surface on the transmission side, bearing mounting holes on the large plate surface, channel steel mounting surface on the non-transmission side, bearing mounting holes on the channel steel surface, and motor mounting plate surface.

[0012] The problem with conventional methods is that the large plate surface on the transmission side of vertical milling is suspended below, resulting in severe tool vibration and the flatness of the machined surface not meeting the technical requirements.

[0013] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0014] The technical problem to be solved by this utility model is: to solve the problem that the flatness of the large plate on the transmission side of vertical milling does not meet the technical requirements after machining.

[0015] This utility model solves the above-mentioned technical problems through the following technical means:

[0016] This utility model claims protection for a large plate auxiliary support mechanism, including a fifth bracket, a large plate auxiliary support cylinder, and a large plate auxiliary unit. The fifth bracket is provided on the second workbench, and the large plate auxiliary support cylinder is provided on the fifth bracket. The piston rod of the large plate auxiliary support cylinder is connected to the fixing part of the large plate auxiliary unit. The large plate auxiliary unit also includes an elastic moving part, an elastic pressing part, and a locking part. The elastic moving part is slidably provided in the fixing part along the horizontal direction. The moving part is in contact with the elastic pressing part in the vertical direction. The pressing part and the fixing part are rigidly locked by the locking part.

[0017] The large plate auxiliary support cylinder drives the large plate auxiliary unit to move horizontally until the elastic moving part contacts the transmission side plate. At this time, the elastic pressing part causes the elastic moving part to fit tightly against the contact position of the transmission side plate. Then, the locking part causes the pressing part to press the elastic pressing part, forming a mechanical lock. This greatly increases the local rigidity of the transmission side plate, thereby eliminating the vibration and deflection of the tool.

[0018] Preferably, the elastic moving part includes a pressure plate spring and a second float. An opening groove is formed on the upper surface of the fixed part. The second float is connected to the opening groove by a floating pin spring. The second float partially slides in the opening groove. The top opening of the opening groove is defined as the first opening. The end of the opening groove passes through to form the second opening. The side wall of the second float protrudes from the first opening, and the end of the second float protrudes from the second opening.

[0019] The floating pin spring is connected to the second float, together achieving a tight fit between the second float and the transmission side plate.

[0020] Preferably, the elastic compression part includes a floating pin spring, a pressure plate guide pin, a floating pressure plate, and a second clamping plate; a pressure hole is opened vertically on the top surface of the fixed pressure plate, and a pressure plate spring is connected in the pressure hole; a first clamping plate is provided on the bottom surface of the fixed pressure plate; a floating pressure plate and a second clamping plate are sequentially provided on the top of the fixed pressure plate; the pressure plate guide pin passes through the second clamping plate and the floating pressure plate in sequence, and the pressure plate guide pin and the pressure hole form a sliding guide fit.

[0021] The guide pin of the pressure plate is used to guide the movement of the second clamping plate and prevent it from deviating in direction.

[0022] Preferably, the locking part is a second locking screw, which passes through the second clamping plate and the floating pressure plate in sequence, and the second locking screw is screwed into the fixed pressure plate.

[0023] By turning the second locking screw, the fixed pressure plate can be pressed against the floating pressure plate, which in turn presses against the second float, thus achieving rigid locking of the second float.

[0024] Preferably, the fixing part includes a first clamping plate and a fixing pressure plate, the fixing pressure plate is provided on the top surface of the first clamping plate, and the side of the fixing pressure plate is connected to the piston rod of the auxiliary support cylinder of the large plate.

[0025] This utility model claims protection for a second positioning fixture employing a large plate auxiliary support mechanism, comprising a second worktable, a first channel steel positioning mechanism, a web plate auxiliary support mechanism, a channel steel pneumatic pressure plate, a large plate auxiliary support mechanism, a large plate fixing mechanism, a leg positioning mechanism, and a leg pneumatic pressure plate.

[0026] The second workbench has pneumatic pressure plates for channel steel on both sides along its length. A first channel steel positioning mechanism and a web plate auxiliary support mechanism are set between the pneumatic pressure plates. The web plate auxiliary support mechanism has a large plate auxiliary support mechanism, a large plate fixing mechanism, a leg positioning mechanism, and a leg pneumatic pressure plate arranged on one side along the width of the second workbench. The output end of the web plate auxiliary support mechanism is configured to cooperate with flexible clamping and rigid locking to perform support operations.

[0027] The web plate auxiliary support mechanism and the large plate auxiliary support mechanism allow the floating block, which extends actively before milling and is driven by a corresponding spring, to closely engage with the contact position of the transmission side plate and then mechanically lock, forming a rigid lock. This greatly increases the local rigidity of the transmission side plate, thereby eliminating tool vibration and tool deflection.

[0028] Preferably, the web plate auxiliary support mechanism includes a first sleeve base, a first floating block, a first spring, and a first locking screw; the first sleeve base is provided on the second workbench, the first floating block is connected to the first sleeve base cavity through the first spring, the first locking screw is screwed into the side of the first sleeve base, and the first locking screw extending into the first sleeve base abuts against the first floating block.

[0029] By incorporating a first spring, a first sleeve base, and a first floating block, the first spring extends actively before milling, allowing the first floating block to closely engage with the contact position of the transmission side plate and then mechanically lock, forming a rigid lock. This significantly increases the local rigidity of the transmission side plate, thereby eliminating tool vibration and deflection.

[0030] Preferably, the large plate fixing mechanism includes a large plate pressing cylinder, a large plate pressing block support cylinder, and a seventh bracket. The seventh bracket is provided on the second worktable surface, and the large plate pressing block support cylinder is provided on the top of the seventh bracket. The piston rod of the large plate pressing block support cylinder is connected to the large plate pressing cylinder. The large plate pressing block support cylinder is configured to drive the large plate pressing cylinder to move horizontally, and the piston rod of the large plate pressing cylinder is configured to move vertically.

[0031] Preferably, the outrigger positioning mechanism includes a lateral limiting block and an outrigger pad. The outrigger pad is provided on the surface of the second workbench, and the lateral limiting block is provided on one side of the outrigger pad along the length direction of the second workbench.

[0032] Preferably, the first channel steel positioning mechanism includes at least two channel steel web pads and a first channel steel positioning block. At least two channel steel web pads are provided along the length direction of the second workbench, and the first channel steel positioning block is provided on one side of the channel steel web pads along the width direction of the second workbench. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the roller conveyor frame in the first three-dimensional coordinate system in this embodiment of the present invention;

[0034] Figure 2 This is a front view of the roller conveyor frame in an embodiment of this utility model;

[0035] Figure 3 This is a partial three-dimensional schematic diagram of the first channel steel component in an embodiment of this utility model;

[0036] Figure 4 This is a three-dimensional schematic diagram of the transmission side plate in an embodiment of this utility model;

[0037] Figure 5 This is a schematic diagram of the structure of the second positioning fixture in the third three-dimensional coordinate system in this embodiment of the present invention;

[0038] Figure 6 This is a top view of the second positioning fixture in an embodiment of this utility model;

[0039] Figure 7 This is a three-dimensional structural diagram of the web plate auxiliary support mechanism in an embodiment of this utility model;

[0040] Figure 8 This is a front view of the web plate auxiliary support mechanism in an embodiment of this utility model;

[0041] Figure 9 yes Figure 8 A cross-sectional view of the structure from the perspective of AA.

[0042] Figure 10 This is a three-dimensional structural diagram of the auxiliary support mechanism for the large plate in an embodiment of this utility model;

[0043] Figure 11 This is a top view of the large plate auxiliary unit in an embodiment of this utility model;

[0044] Figure 12 yes Figure 11 A cross-sectional structural diagram from a BB perspective;

[0045] Figure 13 yes Figure 11 A cross-sectional view of the structure from a CC perspective;

[0046] Figure 14 This is a schematic diagram showing the second floating block locked in the large plate auxiliary unit in this embodiment of the present invention;

[0047] Figure 15 This is a schematic diagram of the large plate pressing cylinder, the large plate pressing block support cylinder, and the seventh bracket in an embodiment of this utility model;

[0048] Figure 16 This is a schematic diagram of the positioning transmission side plate in the third three-dimensional coordinate system in an embodiment of this utility model.

[0049] 10. Transmission side plate; 10c. First mounting surface; 10d. First bearing housing mounting hole;

[0050] 11. First channel steel assembly; 110. First web plate; 111. First flange plate;

[0051] 12. Reinforcing rib plate; 13. First support leg assembly; 14. Motor mounting plate; 16. First fixed-length rectangular tube; 17. Second channel steel assembly; 17c. Second mounting surface; 17d. Second bearing seat mounting hole; 18. Second support leg assembly; 19. Second fixed-length rectangular tube; 19a. Square tube body;

[0052] 40. Second workbench; 41. First channel steel web plate pad; 42. Second channel steel web plate pad; 43. Support leg pad; 44. Lateral limiting block; 45. First channel steel positioning block;

[0053] 46. ​​Web plate auxiliary support mechanism; 460. First sleeve base; 461. First floating block; 462. First spring; 463. First locking screw;

[0054] 47. Channel steel pneumatic pressure plate; 48. Support leg pneumatic pressure plate;

[0055] 49. Large plate auxiliary support mechanism; 490. Fifth bracket; 491. Large plate auxiliary support cylinder;

[0056] 4920, Fixed pressure plate; 49201, Opening slot; 49201e, First slot; 49201f, Second slot; 49202, Pressing hole;

[0057] 4921. Floating pin spring; 4922. First clamping plate; 4923. Second float; 4924. Pressure plate spring; 4925. Floating pressure plate; 4926. Second clamping plate; 4927. Pressure plate guide pin; 4298. Second locking screw;

[0058] 50. Large plate pressing cylinder; 51. Large plate pressing block support cylinder; 52. Seventh bracket. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0060] See Figures 1-3 It should be noted in advance that the roller conveyor frame is the core support structure of the roller conveyor system, used to install and fix components such as rollers and drive devices.

[0061] Overall, the shape of the roller conveyor frame is similar to a horizontally placed "ladder" frame structure. With the center of the roller conveyor frame as the origin O, the length direction of the roller conveyor frame is the X-axis, the width direction of the roller conveyor frame is the Y-axis, and the height direction of the roller conveyor frame is the Z-axis, a first three-dimensional coordinate system is established.

[0062] Therefore, the side of the roller conveyor frame along the X-axis is the transmission side, and the drive motor and gear transmission system used for transmission are both installed on the transmission side.

[0063] The other side of the roller conveyor frame along the X-axis is the non-drive side, which mainly serves as a support and guide.

[0064] The transmission side and the non-transmission side are welded together by several square tube bodies 19a. The square tube bodies 19a are parallel to the Y-axis, and finally form a "ladder-shaped" frame. The conveyor rollers are mounted on both sides of the roller frame.

[0065] Specifically, the roller conveyor frame is welded together from at least the transmission side plate 10, the first channel steel assembly 11, the reinforcing rib plate 12, the first support leg assembly 13, the motor mounting plate 14, the top screw plate, the first fixed-length rectangular tube 16, the second channel steel assembly 17, the second support leg assembly 18, the second fixed-length rectangular tube 19, and the square tube body 19a.

[0066] First, regarding the transmission side;

[0067] The transmission side plate 10 is arranged along the X-axis and is located at the core of the transmission side. It serves as the reference and mounting platform for the entire transmission side. The top surface of the transmission side plate 10 has a first bearing seat mounting hole 10d, which is used to install the first bearing seat (not shown in the figure). The first bearing seat installs the first bearing (not shown in the figure) at one end of the conveyor roller.

[0068] The first channel steel assembly 11 is arranged along the Z-axis and welded to the underside of the transmission side plate 10.

[0069] A reinforcing rib 12 is welded between the first channel steel assembly 11 and the transmission side plate 10 to enhance their rigidity, thereby jointly forming the transmission side plate assembly.

[0070] The first leg assembly 13 is arranged along the Z-axis and welded to the bottom of the first channel steel assembly 11 to support the roller conveyor frame.

[0071] The motor mounting plate 14 is welded onto the first leg assembly 13. Its mounting surface needs to be cut to ensure that it is perpendicular to the surface of the transmission side plate 10, and is used to mount the motor.

[0072] The set screw plate consists of four small parts on the motor mounting plate 14. After the conveyor roller is installed, it is used to adjust the Z-axis position of the motor to ensure the tension of the synchronous belt connecting the motor and the conveyor roller.

[0073] The first fixed-length rectangular tube 16 is arranged along the X-axis and is used to connect the first support leg assembly 13.

[0074] The above transmission side components are welded together to form the transmission side plate.

[0075] Secondly, regarding the non-transmission side;

[0076] The second channel steel assembly 17 is arranged along the Z-axis and serves as the main structure on the non-transmission side. The top surface of the second channel steel assembly 17 has a second bearing housing mounting hole 17d, which is used to install the second bearing housing (not shown in the figure). The bearing housing is used to install the second bearing (not shown in the figure) at the other end of the conveyor roller.

[0077] The second leg assembly 18, arranged along the Z-axis, is welded to the bottom of the second channel steel assembly 17 and is used to support the roller conveyor frame.

[0078] The second fixed-length rectangular tube 19 is arranged along the X-axis and is used to connect the second support leg assembly 18.

[0079] The above non-drive side panels are welded together to form the non-drive side pieces.

[0080] Then, regarding the square tube body 19a;

[0081] The square tube body 19a, arranged along the Y-axis, is used to connect the transmission side plate and the non-transmission side plate, and is welded between the two side plates.

[0082] It should be noted in advance that, taking the roller conveyor frame assembled and welded at this moment as the reference, the top surface of the transmission side large plate assembly is defined as the first mounting surface 10c, and the top surface of the second channel steel assembly 17 is defined as the second mounting surface 17c.

[0083] The following process requirements must be ensured during the processing:

[0084] The flatness of the first mounting surface 10c is ≤0.15mm.

[0085] The flatness of the second mounting surface 17c is ≤0.1mm.

[0086] The height difference between the first mounting surface 10c and the second mounting surface 17c is ≤0.2mm.

[0087] The parallelism between the first mounting surface 10c and the second mounting surface 17c is ≤0.15mm.

[0088] The first bearing housing mounting hole 10d and the second bearing housing mounting hole 17d are parallel and aligned, with a diagonal difference of ≤1mm.

[0089] The perpendicularity between the first mounting surface 10c and the motor mounting plate 14 is ≤0.2mm.

[0090] It is worth mentioning that the diagonal difference ≤1mm refers to the difference between the line connecting the foremost first bearing housing mounting hole 10d and the rearmost second bearing housing mounting hole 17d along the X-axis and the line connecting the foremost second bearing housing mounting hole 17d and the rearmost first bearing housing mounting hole 10d, which is ≤1mm. All the above component placement orientations are described based on the first three-dimensional coordinate system.

[0091] See Figure 4 In this embodiment, the second positioning fixture is applied in S5 to clamp the transmission side plate and mill the mounting surface of the transmission side plate.

[0092] See Figures 5-6Specifically, the second positioning fixture includes a second workbench 40, a first channel steel web plate pad 41, a second channel steel web plate pad 42, a support leg pad 43, a lateral limiting block 44, a first channel steel positioning block 45, a channel steel pneumatic pressure plate 47, a support leg pneumatic pressure plate 48, a large plate auxiliary support mechanism 49, a large plate pressure plate cylinder 50, a large plate pressure block support cylinder 51, and a seventh bracket 52.

[0093] A third three-dimensional coordinate system is established with the surface of the second worktable 40 as the reference plane, the center of the second worktable 40 as the origin o', the length direction of the second worktable 40 as the x' axis, the width direction of the second worktable 40 as the y' axis, and the height direction of the second worktable 40 as the z' axis.

[0094] The second workbench 40 has a first channel steel web plate pad 41 and a second channel steel web plate pad 42 placed on its surface along the x' axis. Both the first channel steel web plate pad 41 and the second channel steel web plate pad 42 are used to support the first web plate 110.

[0095] Three support leg pads 43 are evenly arranged along the x' axis on the surface of the second workbench 40. The support leg pads 43 are used to support the first support leg assembly 13 and prevent the transmission side plate from tipping over.

[0096] Two first channel steel positioning blocks 45 are evenly arranged on the surface of the second workbench 40 along the x' axis. The first channel steel positioning blocks 45 are used to limit the first wing plate 111.

[0097] A lateral limiting block 44 is provided on the right side of the second workbench 40, which is used to limit the first support leg assembly 13.

[0098] See Figures 7-9 Four web plate auxiliary support mechanisms 46 are evenly arranged along the x' axis on the surface of the second workbench 40. The web plate auxiliary support mechanisms 46 are used to provide auxiliary support for the first web plate 110. Specifically, the web plate auxiliary support mechanism 46 includes a first sleeve base 460, a first floating block 461, a first spring 462, and a first locking screw 463. The first sleeve base 460 is provided on the surface of the second workbench 40. The first floating block 461 is connected to the first sleeve base 460 along the z' axis through the first spring 462. The first locking screw 463 is screwed into the side of the first sleeve base 460, and the first locking screw 463 extending into the first sleeve base 460 abuts against the first floating block 461.

[0099] Pneumatic pressure plates 47 made of channel steel are placed on both sides of the second workbench 40 along the x' axis. The pneumatic pressure plate is a clamping device that uses compressed air as a power source. It is existing technology and will not be described in detail. The piston rod of the pneumatic pressure plate 47 moves along the x' axis to clamp and fix the two ends of the first channel steel assembly 11.

[0100] Three pneumatic pressure plates 48 are evenly arranged on the worktable surface along the x' axis, and the pneumatic pressure plates 48 clamp the three first support leg assemblies 13 respectively.

[0101] See Figure 7 In the second workbench 40 shown in Figure 1, four large plate auxiliary support mechanisms 49 are evenly arranged along the x' axis. Each large plate auxiliary support mechanism 49 includes a fifth bracket 490, a large plate auxiliary support cylinder 491, and a large plate auxiliary unit. The fifth bracket 490 is set on the second workbench 40, and the large plate auxiliary support cylinder 491 is set on the fifth bracket 490. The piston rod of the large plate auxiliary support cylinder 491 moves along the y' axis, and the piston rod of the large plate auxiliary support cylinder 491 is connected to the large plate auxiliary unit.

[0102] See Figures 10-14 The large plate auxiliary unit includes a fixed pressure plate 4920, a floating pin spring 4921, a first clamping plate 4922, a second float 4923, a pressure plate spring 4924, a floating pressure plate 4925, a second clamping plate 4926, a pressure plate guide pin 4927, and a second locking screw 4928. The piston rod of the large plate auxiliary support cylinder 491 is connected to the fixed pressure plate 4920. An opening groove 49201 is opened on the upper surface of the fixed pressure plate 4920. The length direction of the opening groove 49201 is parallel to the y' axis. The opening groove 49201 contains... The second float 4923 is connected by a floating pin spring 4921. The second float 4923 slides partially in the opening slot 49201 along the y' axis. The top opening of the opening slot 49201 is defined as the first opening 49201e. The end of the opening slot 49201 passes through to form the second opening 49201f. The side wall of the second float 4923 protrudes from the first opening 49201e, and the end of the second float 4923 protrudes from the second opening 49201f. The second float 4923 abuts against the side of the transmission side plate 10.

[0103] Two pressure holes 49202 are formed on the top surface of the fixed pressure plate 4920 along the z' axis. The two pressure holes 49202 are located on both sides of the fixed pressure plate 4920. A pressure plate spring 4924 is connected inside the pressure hole 49202. In the normal state, the pressure plate spring 4924 protrudes from the pressure hole 49202. A first clamping plate 4922 is provided on the bottom surface of the fixed pressure plate 4920. A floating pressure plate 4925 and a second clamping plate 4926 are sequentially provided on the top of the fixed pressure plate 4920. A pressure plate guide pin 4927 passes through the second clamping plate 4926 and the floating pressure plate 4925 in sequence. The guide pin 4927 and the pressure hole 49202 form a sliding guide fit. The second locking screw 4928 is located between the two pressure plate guide pins 4927. The second locking screw 4928 passes through the second clamping plate 4926 and the floating pressure plate 4925 in sequence, and the second locking screw 4928 is screwed into the fixed pressure plate 4920. When fully screwed, the pressure plate spring 4924 is compressed, and the floating pressure plate 4925 is pressed against the surface of the fixed pressure plate 4920. At this time, the floating pressure plate 4925 is pressed against the surface of the second float 4923, restricting the sliding of the second float 4923.

[0104] It is worth mentioning that the positions of the pressure hole 49202 and the opening groove 49201 are staggered.

[0105] See Figures 15-16 Four large plate pressing block support cylinders 51 are evenly arranged on the surface of the second workbench 40 along the x' axis. The large plate pressing block support cylinders 51 are installed on the seventh bracket 52. The piston rod of the large plate pressing block support cylinder 51 moves along the y' axis, and the piston rod of the large plate pressing cylinder 50 is driven along the z' axis to press the top of the large plate 10 on the transmission side.

[0106] The second positioning fixture is used to position and clamp the transmission side plate, facilitating the milling process of the transmission side plate mounting surface as follows:

[0107] S10. Positioning transmission side plate, specifically, the hoisting transmission side plate is placed on the second workbench 40, the opening side of the first channel steel assembly 11 faces downward, the first leg assembly 13 is parallel to the y' axis, the first channel steel web plate pad 41 and the second channel steel web plate pad 42 are placed in the first web plate 110, the leg pad 43 supports the first leg assembly 13, the right side of the first leg assembly 13 is attached to the lateral limiting block 44, and the first wing plate 111 is attached to the side of the first channel steel positioning block 45.

[0108] S11. The web plate auxiliary support mechanism 46 provides auxiliary support for the first web plate 110; specifically, due to the flatness error of the first web plate 110, the first web plate 110 contacts the first floating block 461, causing it to descend to different degrees. The first spring 462 flexibly compresses the first floating block 461 to keep its end in contact with and support the first web plate 110, and the first locking screw 463 is tightened to rigidly lock it.

[0109] S12. The channel steel pneumatic pressure plate 47 clamps the first channel steel assembly 11; specifically, the channel steel pneumatic pressure plate 47 is activated to clamp both ends of the first channel steel assembly 11.

[0110] S13. The outrigger pneumatic pressure plate 48 clamps the first outrigger assembly 13; specifically, the outrigger pneumatic pressure plate 48 is activated to clamp the end of the first outrigger assembly 13.

[0111] S14. The large plate auxiliary support mechanism 49 clamps the transmission side large plate 10; specifically, the large plate auxiliary support cylinder 491 is activated, the piston rod of the large plate auxiliary support cylinder 491 extends along the y' axis, driving the fixed pressure plate 4920 to approach the side of the transmission side large plate 10. After the second float 4923 contacts the transmission side large plate 10, the floating pin spring 4921 is compressed, and the second float 4923 moves backward. At this time, the second locking screw 4928 is tightened, so that the floating pressure plate 4925 slides along the guide pin 4927 and the pressure hole 49202 until the second float 4923 is pressed and locked.

[0112] S15. The large plate pressing block support cylinder 51 drives the transmission side large plate 10 to move along the y' axis, and the piston rod of the transmission side large plate 10 moves along the z' axis to clamp the transmission side large plate 10; specifically, the large plate pressing block support cylinder 51 is activated, the piston rod of the large plate pressing block support cylinder 51 drives the large plate pressing plate cylinder 50 along the y' axis, and the piston rod of the large plate pressing plate cylinder 50 moves along the z' axis to press against the top surface of the transmission side large plate 10.

[0113] S16. Milling machine side-mills 10 sides of the transmission side plate.

[0114] S17. Mounting plate 14 for vertical milling motor of milling machine.

[0115] S18. Remove the milled transmission side plate; specifically, after milling, loosen the second locking screw 4928 and the first locking screw 463, and reverse the operation of the large plate auxiliary support cylinder 491, the large plate pressure plate cylinder 50, the large plate pressure block support cylinder 51, the channel steel pneumatic pressure plate 47, and the outrigger pneumatic pressure plate 48; the second float 4923 moves back to its original position under the rebound action of the floating pin spring 4921. Remove the milled transmission side plate, and the first float 461 extends back to its original position under the action of the first spring 462.

[0116] It is worth noting that the placement of all the components described above is based on the third three-dimensional coordinate system. In fact, when corresponding to the first three-dimensional coordinate system, the transmission side plate 10 corresponds to the first mounting surface 10c.

[0117] Therefore, it is necessary to ensure that during this process, the flatness of the first mounting surface 10c is ≤0.15mm and the perpendicularity between the first mounting surface 10c and the motor mounting plate 14 is ≤0.2mm.

[0118] In this embodiment, the flexible clamping and rigid locking of the second positioning fixture work together to position and clamp the parts. In fact, during the milling process, since the transmission side plate itself is not an absolutely rigid body, the transmission side plate will undergo extremely small elastic deformation or vibration under the cutting force of the milling cutter head.

[0119] In this way, once high-frequency vibration occurs between the milling cutter and the transmission side plate, it leaves obvious vibration marks on the machined surface, causing a sharp decrease in surface finish and flatness, which will result in the phenomenon of milling cutter vibration.

[0120] The transmission side plate retracts due to insufficient support; when the milling cutter leaves, the transmission side plate springs back, which leads to uneven actual cutting amount and the machined surface does not meet the required flatness, resulting in tool deflection.

[0121] However, in this embodiment, the web plate auxiliary support mechanism 46 and the large plate auxiliary support mechanism 49 allow the floating block, which extends actively before milling and is driven by the corresponding spring, to closely fit the contact position of the transmission side plate and then mechanically lock, forming a rigid lock. This greatly increases the local rigidity of the transmission side plate, thereby eliminating tool vibration and tool deflection.

[0122] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A large plate auxiliary support mechanism, characterized in that, The system includes a fifth support (490), a large plate auxiliary support cylinder (491), and a large plate auxiliary unit. The fifth support (490) is installed on the surface of the second workbench (40). The large plate auxiliary support cylinder (491) is installed on the fifth support (490). The piston rod of the large plate auxiliary support cylinder (491) is connected to the fixed part of the large plate auxiliary unit. The large plate auxiliary unit also includes an elastic moving part, an elastic pressing part, and a locking part. The elastic moving part is slidably installed in the fixed part along the horizontal direction. The moving part is in contact with the elastic pressing part along the vertical direction. The pressing part and the fixed part are rigidly locked by the locking part.

2. The large plate auxiliary support mechanism according to claim 1, characterized in that, The elastic moving part includes a pressure plate spring (4924) and a second float (4923). An opening groove (49201) is opened on the upper surface of the fixed part. The second float (4923) is connected in the opening groove (49201) by a floating pin spring (4921). The second float (4923) partially slides in the opening groove (49201). The groove at the top of the opening groove (49201) is defined as the first groove (49201e). The end of the opening groove (49201) passes through to form a second groove (49201f). The side wall of the second float (4923) protrudes from the first groove (49201e), and the end of the second float (4923) protrudes from the second groove (49201f).

3. The large plate auxiliary support mechanism according to claim 2, characterized in that, The elastic compression part includes a floating pin spring (4921), a pressure plate guide pin (4927), a floating pressure plate (4925), and a second clamping plate (4926); the top surface of the fixed pressure plate (4920) has a vertically oriented pressure hole (49202), and the pressure plate spring (4924) is connected inside the pressure hole (49202); the bottom surface of the fixed pressure plate (4920) is provided with a first clamping plate (4922); the top surface of the fixed pressure plate (4920) is sequentially provided with a floating pressure plate (4925) and a second clamping plate (4926); the pressure plate guide pin (4927) passes through the second clamping plate (4926) and the floating pressure plate (4925) in sequence, and the pressure plate guide pin (4927) and the pressure hole (49202) form a sliding guide fit.

4. The large plate auxiliary support mechanism according to claim 3, characterized in that, The locking part is a second locking screw (4928), which passes through the second clamping plate (4926) and the floating pressure plate (4925) in sequence, and the second locking screw (4928) is screwed into the fixed pressure plate (4920).

5. The large plate auxiliary support mechanism according to claim 1, characterized in that, The fixing part includes a first clamping plate (4922) and a fixing pressure plate (4920). The fixing pressure plate (4920) is provided on the top surface of the first clamping plate (4922), and the side of the fixing pressure plate (4920) is connected to the piston rod of the large plate auxiliary support cylinder (491).

6. A second positioning fixture employing the large plate auxiliary support mechanism as described in any one of claims 1 to 5, characterized in that, It includes a second workbench (40), a first channel steel positioning mechanism, a web plate auxiliary support mechanism (46), a channel steel pneumatic pressure plate (47), a large plate auxiliary support mechanism (49), a large plate fixing mechanism, a leg positioning mechanism, and a leg pneumatic pressure plate (48). The second workbench (40) has pneumatic pressure plates (47) of channel steel on both sides along the length direction. A first channel steel positioning mechanism and a web plate auxiliary support mechanism (46) are set between the pneumatic pressure plates (47). The web plate auxiliary support mechanism (46) is arranged with a large plate auxiliary support mechanism (49), a large plate fixing mechanism, a leg positioning mechanism and a leg pneumatic pressure plate (48) on one side along the width direction of the second workbench (40). The output end of the web plate auxiliary support mechanism (46) is configured to cooperate with flexible clamping and rigid locking to perform support operations.

7. The second positioning fixture according to claim 6, characterized in that, The web plate auxiliary support mechanism (46) includes a first sleeve base (460), a first floating block (461), a first spring (462), and a first locking screw (463); the first sleeve base (460) is provided on the table surface of the second workbench (40), the first sleeve base (460) is connected to the first floating block (461) through the first spring (462) in the cylinder cavity of the first sleeve base (460), the first locking screw (463) is screwed into the side of the first sleeve base (460), and the first locking screw (463) extending into the first sleeve base (460) abuts against the first floating block (461).

8. The second positioning fixture according to claim 6, characterized in that, The large plate fixing mechanism includes a large plate pressing cylinder (50), a large plate pressing block support cylinder (51), and a seventh bracket (52). The seventh bracket (52) is provided on the surface of the second workbench (40). The large plate pressing block support cylinder (51) is provided on the top of the seventh bracket (52). The piston rod of the large plate pressing block support cylinder (51) is connected to the large plate pressing cylinder (50). The large plate pressing block support cylinder (51) is configured to drive the large plate pressing cylinder (50) to move horizontally, and the piston rod of the large plate pressing cylinder (50) is configured to move vertically.

9. The second positioning fixture according to claim 6, characterized in that, The outrigger positioning mechanism includes a lateral limiting block (44) and an outrigger pad (43). The outrigger pad (43) is provided on the surface of the second workbench (40), and the lateral limiting block (44) is provided on one side of the outrigger pad (43) along the length direction of the second workbench (40).

10. The second positioning fixture according to claim 6, characterized in that, The first channel steel positioning mechanism includes at least two channel steel web pads and a first channel steel positioning block (45). The second workbench (40) is provided with at least two channel steel web pads along its length direction, and the first channel steel positioning block (45) is provided on one side of the channel steel web pads along the width direction of the second workbench (40).

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