A modular tooling and machining method for crossbeams

Abstract

This invention provides a modular beam processing fixture and method, including a worktable; it also includes: a first end clamping module fixedly installed on the left side of the worktable; multiple beam clamping modules and a second end clamping module are arranged sequentially from near to far on the right side of the first end clamping module; the worktable has several equally spaced slots, and several locking mechanisms are installed inside the worktable, with the locking mechanisms respectively located below the slots; the bottom of the multiple beam clamping modules and the bottom of the second end clamping module are both fixedly installed with plug-in seats, which are inserted into the slots and connected to the locking mechanisms. By setting multiple beam clamping modules, after clamping both ends of the beam using the first and second end clamping modules, the multiple beam clamping modules can clamp at various points along the length of the beam, ensuring the clamping and fixing effect of the beam.

Description

Technical Field

[0001] This invention relates to the field of machine tool processing, and in particular to a modular tooling and processing method for machining crossbeams. Background Technology

[0002] During the processing of the crossbeam, the surface of the crossbeam needs to be drilled and milled using a machine tool. Since the crossbeam is long and narrow, traditional fixtures on the machine tool cannot be used. Therefore, special machine tool components and accessories are needed as tooling for the crossbeam processing.

[0003] Currently, existing beam processing fixtures generally use a two-end clamping method to clamp and fix the beam. For example, in the existing patent "CN218284568U A beam processing positioning fixture", a lead screw structure is set between the clamping components at both ends to achieve adjustable spacing between the clamping components at both ends, so as to meet the clamping and fixing of beams of different lengths. Although the above clamping method can achieve clamping and fixing of beams of different lengths, the beam body lacks a clamping limit design, resulting in poor clamping and fixing effect of the beam. Summary of the Invention

[0004] To address the technical problem of the lack of clamping and fixing for beams, this invention provides a modular crossbeam processing fixture and processing method.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0006] This invention provides a modular beam machining fixture, including a worktable fixedly installed inside a machine tool; and further including: a first end clamping module, which is fixedly installed on the left side of the worktable; a plurality of beam clamping modules and a second end clamping module are arranged sequentially from near to far on the right side of the first end clamping module; the beam clamping module includes a first carrier plate; a movable plate is provided on the top of the first carrier plate, a first slide is fixedly installed on the bottom of the movable plate, a longitudinally arranged first guide rail is fixedly installed on the top of the first carrier plate, the first slide is slidably connected to the first guide rail, and a first pushing oil is also fixedly installed on the top of the first carrier plate. The cylinder has a first push cylinder whose output end is fixedly connected to a movable plate. A support frame is fixedly installed on the top of the movable plate. A pressing component is installed above the support frame. Multiple longitudinally arranged second support cylinders are also fixedly installed on the support frame. A third support cylinder and a fourth support cylinder are arranged on the front side of the support frame. The third support cylinder is fixedly connected to the top surface of the movable plate. A second slide is fixedly installed at the bottom of the fourth support cylinder. A longitudinally arranged second guide rail is fixedly installed on the movable plate. The second guide rail is slidably connected to the second slide. A second push cylinder is also fixedly installed on the movable plate. The output end of the second push cylinder is fixedly connected to the second slide.

[0007] Multiple beam clamping modules can clamp the beam at various points along its length, ensuring effective clamping and fixing of the beam.

[0008] Preferably, both the first end clamping module and the second end clamping module consist of a second carrier plate, a hydraulic gripper, and a first support cylinder; the hydraulic gripper and the first support cylinder are both fixedly mounted on the second carrier plate; the second carrier plate of the first end clamping module is fixedly connected to the top of the worktable, and the second carrier plate of the second end clamping module is fixedly connected to a connector.

[0009] The first end clamping module and the second end clamping module can effectively clamp both ends of the crossbeam, and the clamping effect is improved in conjunction with the beam body clamping module.

[0010] Preferably, the pressing assembly includes a tilting cylinder and a pressing base; the tilting cylinder is fixedly installed on the top of the upright, a connecting seat is fixedly installed on the bottom side of the pressing base, the bottom of the connecting seat is hinged to the output end of the tilting cylinder, a connecting block is fixedly installed on the top side of the tilting cylinder, a connecting rod is provided between the connecting block and the connecting base, and the two ends of the connecting rod are respectively hinged to the connecting block and the connecting base.

[0011] The downward clamping force is applied to the top of the beam by the pressing component to achieve a clamping effect at the top of the beam.

[0012] Preferably, the worktable has several equally spaced slots, and several locking mechanisms are installed inside the worktable, with each locking mechanism located below one of the slots; a plug-in seat is fixedly installed on the bottom of the multiple beam clamping modules and the bottom of the second end clamping module, the plug-in seat is plugged into the slot, and the plug-in seat is connected to the locking mechanism; the plug-in seat has a locking groove; the locking mechanism includes a locking block and a driving component, the driving component driving the locking block to automatically insert into or leave the locking groove.

[0013] The design incorporates slots, connectors, and a locking mechanism, enabling the detachable installation of the beam clamping module and the second end clamping module, facilitating the replacement and adjustment of the number of beam clamping modules.

[0014] Preferably, the driving component of the locking mechanism includes a lifting cylinder fixedly installed on the inner wall of the bottom of the workbench; a carrier is fixedly installed on the output shaft end of the lifting cylinder, and multiple elastic telescopic rods are provided on the carrier. The top end of each elastic telescopic rod is fixedly connected to an insert, which is inserted into a slot at the bottom of the connector. Locking grooves are provided on both sides of the slot, and sliding grooves are provided on both sides of the insert. Locking blocks are slidably installed in the sliding grooves. A concave hole is provided at one end of the locking block in the sliding groove, and a second spring is provided in the concave hole. The locking block is elastically connected to the insert through the second spring. A wire groove is provided inside the insert, and a pull rope is fixedly connected to the locking block. The pull rope passes through the wire groove and the hole in the carrier, and the bottom end of the pull rope is fixedly connected to the inner wall of the bottom of the workbench.

[0015] When disassembling and installing the beam clamping module and the second end clamping module, a locking mechanism is used for automatic locking and unlocking, eliminating the need for manual operation and providing convenience for disassembly and assembly.

[0016] Preferably, the elastic telescopic rod includes a fixed cylinder and a sliding cylinder; the fixed cylinder is sleeved onto the sliding cylinder and fixedly installed on the carrier; the top end of the fixed cylinder is provided with a through groove; a mating seat is fixedly installed at one end of the sliding cylinder located inside the fixed cylinder, and the mating seat is fitted into the fixed cylinder; a first spring is provided inside the sliding cylinder; the sliding cylinder is elastically connected to the bottom of the fixed cylinder through the first spring; the outer wall of the sliding cylinder is fitted into the groove wall of the through groove; and the top end of the sliding cylinder is fixedly connected to the bottom of the insert.

[0017] While the locking limit is engaged, the elastic telescopic rod is stretched, generating tensile deformation to provide downward limiting pressure, thereby improving the installation effect of the beam clamping module and the second end clamping module.

[0018] Preferably, a baffle is provided on one side of the slot, the baffle is connected to a transmission mechanism, the input end of the transmission mechanism is connected to a pull rod, and the bottom end of the pull rod is provided with a bent portion.

[0019] By setting up a shielding plate and a transmission mechanism, the slot can be shielded when the beam clamping module and the second end clamping module are not installed at the slot position, thus preventing dust and foreign objects from entering.

[0020] Preferably, a pusher is fixedly installed on one side of the carrier of the locking mechanism, and the pusher is located above the bent portion.

[0021] By setting up the push base, the locking mechanism can drive the transmission mechanism to operate simultaneously, thereby automatically driving the baffle plate. No additional drive components are needed at the baffle plate position.

[0022] Preferably, the transmission mechanism includes a housing; the housing is fixedly connected to the inner wall of the workbench via a connecting frame; a second rotating shaft is rotatably mounted on the top of the transmission mechanism; the top end of the second rotating shaft is fixedly connected to a baffle plate; a first rotating shaft is rotatably mounted inside the housing; a bevel gear is fixedly sleeved on both the first rotating shaft and the end of the second rotating shaft located inside the housing, and the two bevel gears are meshed together; a cylindrical gear is fixedly sleeved on the first rotating shaft; the cylindrical gear is meshed with a rack; a connecting strip is fixedly connected to the bottom end of the rack; the connecting strip is connected to a guide hole opened at the bottom of the housing; the top end of the connecting strip is elastically connected to the bottom inner wall of the housing via a third spring; and the bottom end of the connecting strip is fixedly connected to the top end of a pull rod.

[0023] The transmission mechanism is equipped with a third spring for resetting. When the transmission mechanism is not under the action of the locking mechanism, the baffle can be automatically opened by the resetting force.

[0024] Furthermore, the present invention provides a method for processing a crossbeam, the method comprising the following steps:

[0025] Step 1: Adjust the number of beam clamping modules according to the length of the beam. First, remove the first end clamping module, then remove or install the beam clamping modules to add or remove beam clamping modules on the workbench. Then reinstall the first end clamping module.

[0026] Step 2: Clamp both ends of the crossbeam using the first end clamping module and the second end clamping module;

[0027] Step 3: The beam clamping module clamps the beam at various points along the length of the beam.

[0028] Step four: The machine tool drills and mills the clamped crossbeam.

[0029] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0030] The positive and progressive effects of this invention are as follows:

[0031] The aforementioned modular beam processing fixture and method, by setting up multiple beam body clamping modules, a first end clamping module, and a second end clamping module, allows the beam to be clamped at both ends by the first and second end clamping modules. The multiple beam body clamping modules can then clamp the beam at various points along its length, ensuring effective clamping and fixing. Furthermore, both the second end clamping module and the beam body clamping module are detachable, allowing for adjustment of the number of beam body clamping modules and the distance between the second and first end clamping modules. This ensures that all parts of the beam are clamped while also adapting to the clamping requirements of beams of different lengths. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the beam clamping module, the first end clamping module, and the second end clamping module of the present invention installed on the workbench.

[0033] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0034] Figure 3 This is a schematic diagram of the structure of the second carrier plate, hydraulic gripper, and first support cylinder of the present invention.

[0035] Figure 4 This is a structural schematic diagram of the beam clamping module of the present invention.

[0036] Figure 5 This is a schematic diagram of the structure of the pressure-down component of the present invention.

[0037] Figure 6 This is a schematic diagram of the internal structure of the workbench of the present invention.

[0038] Figure 7 This is a schematic diagram of the connector and positioning post of the present invention.

[0039] Figure 8 This is a schematic diagram of the locking mechanism, transmission mechanism, baffle plate, pull rod, and push base of the present invention.

[0040] Figure 9 This is a schematic diagram of the locking mechanism structure in the locked state of the present invention.

[0041] Figure 10 This is a schematic diagram of the structure of the connector of the present invention in the tensioned state.

[0042] Figure 11 This is a schematic diagram of the locking mechanism in the unlocked state of the present invention.

[0043] Figure 12 This is a schematic diagram of the internal structure of the elastic telescopic rod and the insert of the present invention.

[0044] Figure 13 This is a schematic diagram of the internal structure of the housing of the present invention.

[0045] Explanation of reference numerals in the attached figures

[0046] 1. Workbench; 101. Slot; 102. Positioning cylinder; 2. Beam clamping module; 201. First carrier plate; 202. First guide rail; 203. Movable plate; 204. First slide; 205. First push cylinder; 206. Stand; 207. Pressing assembly; 2071. Tilting cylinder; 2072. Pressing seat; 2073. Connecting seat; 2074. Connecting rod; 208. Second support cylinder; 209. Third support cylinder; 210. Second guide rail; 211. Second slide; 212. Fourth support cylinder; 213. Second push cylinder; 3. First end clamping module; 4. Second end clamping module; 5. Second carrier plate; 6. Hydraulic gripper; 7. First support cylinder; 8. Locking mechanism; 801. Insert; 801 1. Slide groove; 8012. Through groove; 802. Elastic telescopic rod; 8021. Fixed cylinder; 8022. Slide cylinder; 8023. Mating seat; 8024. First spring; 803. Carrier frame; 804. Lifting cylinder; 805. Pull rope; 806. Locking block; 8061. Concave hole; 807. Second spring; 9. Baffle plate; 10. Plug-in seat; 1001. Embedded groove; 1002. Locking groove; 11. Positioning post; 12. Transmission mechanism; 1201. Housing; 1202. First rotating shaft; 1203. Second rotating shaft; 1204. Bevel gear; 1205. Cylindrical gear; 1206. Rack; 1207. Connecting bar; 1208. Guide hole; 1209. Third spring; 13. Pull rod; 14. Push seat; 15. Connecting frame. Detailed Implementation

[0047] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0048] This invention relates to the field of machine tool processing, and the machine tool belongs to the intelligent manufacturing equipment industry. The modular beam processing fixture provided in this application belongs to the manufacturing of machine tool functional components and accessories.

[0049] like Figures 1-13 As shown, a modular beam machining fixture includes a worktable 1 fixedly installed inside a machine tool; it also includes:

[0050] The first end clamping module 3 is fixedly installed on the left side of the workbench 1;

[0051] On the right side of the first end clamping module 3, from near to far, there are a plurality of beam clamping modules 2 and a second end clamping module 4;

[0052] The workbench 1 has a plurality of equally spaced slots 101, and the workbench 1 has a plurality of locking mechanisms 8 installed inside, and the plurality of locking mechanisms 8 are respectively located below the plurality of slots 101.

[0053] The bottom of the plurality of beam clamping modules 2 and the bottom of the second end clamping module 4 are all fixedly installed with plug-in base 10. The plug-in base 10 is plugged into the slot 101 and is connected to the locking mechanism 8. The plug-in base 10 is provided with a locking groove 1002.

[0054] The locking mechanism 8 includes a locking block 806 and a driving component, which drives the locking block 806 to automatically insert into or leave the locking groove 1002.

[0055] In practical implementation, multiple beam clamping modules 2 and second end clamping modules 4 in the entire fixture are locked and installed using locking mechanisms 8. The locking mechanisms 8 automatically unlock and lock by driving the locking block 806, so that the disassembly and installation of beam clamping modules 2 and second end clamping modules 4 on the workbench 1 are convenient. This facilitates the adjustment of the number of beam clamping modules 2 to accommodate beams of different lengths as needed to process the required crossbeam length.

[0056] like Figures 2-3 As shown, as a specific technical solution, both the first end clamping module 3 and the second end clamping module 4 consist of a second carrier plate 5, hydraulic grippers 6, and a first support cylinder 7. The hydraulic grippers 6 and the first support cylinder 7 are both fixedly mounted on the second carrier plate 5. The second carrier plate 5 of the first end clamping module 3 is fixedly connected to the top of the worktable 1, and the second carrier plate 5 of the second end clamping module 4 is fixedly connected to a connector 10. The crossbeam to be processed by the machine tool is placed between the first end clamping module 3 and the second end clamping module 4. Through the hydraulic action within the hydraulic grippers 6 of both modules, the two claws of the hydraulic grippers 6 move closer together to clamp both ends of the crossbeam. After clamping, hydraulic oil is injected into the first support cylinder 7, causing the first support cylinder 7 to extend and its top end to abut against the bottom of the crossbeam, providing support at both ends of the crossbeam.

[0057] like Figure 4As shown, as a specific technical solution, the beam clamping module 2 includes a first carrier plate 201; a movable plate 203 is provided on the top of the first carrier plate 201, a first slide block 204 is fixedly installed on the bottom of the movable plate 203, a longitudinally arranged first guide rail 202 is fixedly installed on the top of the first carrier plate 201, the first slide block 204 is slidably connected to the first guide rail 202, a first pushing cylinder 205 is also fixedly installed on the top of the first carrier plate 201, the output end of the first pushing cylinder 205 is fixedly connected to the movable plate 203, a stand 206 is fixedly installed on the top of the movable plate 203, a pressing component 207 is installed above the stand 206, and a component is also fixedly installed on the stand 206. The support frame 206 is equipped with multiple longitudinally arranged second support cylinders 208 (it should be noted that the horizontal direction is the length direction of the worktable 1, and the vertical direction is the width direction of the worktable 1). The front side of the support frame 206 is provided with a third support cylinder 209 and a fourth support cylinder 212. The third support cylinder 209 is fixedly connected to the top surface of the movable plate 203. The bottom of the fourth support cylinder 212 is fixedly installed with a second slide block 211. The movable plate 203 is fixedly installed with a longitudinally arranged second guide rail 210. The second guide rail 210 is slidably connected to the second slide block 211. The movable plate 203 is also fixedly installed with a second push cylinder 213. The output end of the second push cylinder 213 is fixedly connected to the second slide block 211.

[0058] like Figure 2 As shown, when clamping the beam, several beam clamping modules 2 with equal spacing can clamp the beam at various points along its length, ensuring the clamping effect. Furthermore, when adapting to beams of different lengths, the number of beam clamping modules 2 can be increased or decreased so that beams of different lengths can be clamped at various points along their length.

[0059] The clamping components of the beam clamping module 2 can be adjusted longitudinally to meet the processing of beams of different widths. Specifically, the movable plate 203 is moved in the front-back direction by the first push cylinder 205, and the first slide block 204 slides with the first guide rail 202 to realize the adjustment of the movable plate 203 and the structure above the movable plate 203 in the front-back direction.

[0060] After adjustment, both ends of the crossbeam are clamped. If the crossbeam thickness is low, i.e., the distance between the bottom surface and the worktable 1 is large after the crossbeam is clamped at the ends, the second push cylinder 213 pushes the second slide block 211 to slide along the second guide rail 210, causing the fourth support cylinder 212 to enter under the crossbeam and support the bottom surface of the crossbeam. If the crossbeam thickness is high, the fourth support cylinder 212 is moved to the rearmost position, such as... Figure 4As shown, the third support cylinder 209 then extends to support the bottom surface of the crossbeam.

[0061] While supporting the bottom surface of the crossbeam, the top surface of the crossbeam is pressed down by the pressing component 207. Then, the second support cylinder 208 abuts against the rear side of the crossbeam to provide support for the rear side.

[0062] Through the above design, the beam clamping module 2 can press the top, bottom and rear sides of the beam to ensure the clamping effect on the beam.

[0063] like Figure 4 As shown, the fourth support cylinder 212 is installed at a higher position than the third support cylinder 209 to accommodate crossbeams of different thicknesses.

[0064] like Figures 4-5 As shown, as a specific technical solution, the pressing assembly 207 includes a tilting cylinder 2071 and a pressing seat 2072; the tilting cylinder 2071 is fixedly installed on the top of the upright 206, a connecting seat 2073 is fixedly installed on the bottom side of the pressing seat 2072, the bottom of the connecting seat 2073 is hinged to the output end of the tilting cylinder 2071, a connecting block is fixedly installed on the top side of the tilting cylinder 2071, a connecting rod 2074 is provided between the connecting block and the connecting seat 2073, and the two ends of the connecting rod 2074 are respectively hinged to the connecting block and the connecting seat 2073.

[0065] By extending and retracting the hydraulic cylinder 2071, the pressure seat 2072 is driven to flip, thereby causing the pressure seat 2072 to press down on the top of the crossbeam; as Figure 5 As shown, the tilting cylinder 2071 is in the retracted state. When the tilting cylinder 2071 extends, the pressure seat 2072 can be tilted downward to press down on the top of the crossbeam.

[0066] like Figures 8-12As shown, as a specific technical solution, the driving component of the locking mechanism 8 includes a lifting cylinder 804 fixedly installed on the inner wall of the bottom of the workbench 1; a carrier 803 is fixedly installed on the output shaft end of the lifting cylinder 804, and a plurality of elastic telescopic rods 802 are provided on the carrier 803. A block 801 is fixedly connected to the top end of each elastic telescopic rod 802, and the block 801 is inserted into a slot 101 opened at the bottom of the insertion seat 10. Locking grooves 1002 are provided on both sides of the slot 101, and sliding grooves 8011 are provided on both sides of the block 801. A locking block 806 is slidably mounted on the slide groove 8011. One end of the locking block 806 within the slide groove 8011 has a recessed hole 8061. A second spring 807 is disposed within the recessed hole 8061. The locking block 806 is elastically connected to the insert block 801 via the second spring 807. A wire-passing groove 8012 is formed inside the insert block 801. A pull rope 805 is fixedly connected to the locking block 806. The pull rope 805 passes through the wire-passing groove 8012 and a hole in the carrier 803, and its bottom end is fixedly connected to the bottom inner wall of the workbench 1. After locking, as... Figure 10 and Figure 12 As shown, there is a gap between the top surface of the locking block 806 and the top surface of the locking groove 1002, and there is also a gap between the top surface of the insert block 801 and the top surface of the insert groove 1001.

[0067] like Figure 12 As shown, as a specific technical solution, the elastic telescopic rod 802 includes a fixed cylinder 8021 and a sliding cylinder 8022; the fixed cylinder 8021 is sleeved onto the sliding cylinder 8022, and the fixed cylinder 8021 is fixedly installed on the carrier 803. A through groove is provided at the top of the fixed cylinder 8021. A mating seat 8023 is fixedly installed at one end of the sliding cylinder 8022 inside the fixed cylinder 8021, and the mating seat 8023 is fitted into the fixed cylinder 8021. A first spring 8024 is provided inside the sliding cylinder 8022, and the sliding cylinder 8022 is elastically connected to the bottom of the fixed cylinder 8021 through the first spring 8024. The outer wall of the sliding cylinder 8022 is fitted into the groove wall, and the top of the sliding cylinder 8022 is fixedly connected to the bottom of the insert 801. Figure 12 As shown, the elastic telescopic rod 802 is in a retracted state, and the bottom surface of the mating seat 8023 is in contact with the bottom inner wall of the fixed cylinder 8021; after the elastic telescopic rod 802 is fully stretched, the top surface of the mating seat 8023 is in contact with the top inner wall of the fixed cylinder 8021, and the first spring 8024 is stretched.

[0068] like Figure 10As shown, in this state, the insert 801 is locked and the elastic telescopic rod 802 is fully extended. The stretching force acts on the plug seat 10 through the locking block 806, so that the multiple beam clamping modules 2 and the second end clamping module 4 all have a downward pulling force to press the top of the worktable 1 and improve the installation effect.

[0069] During unlocking and disassembly, the lifting cylinder 804 extends, causing the elastic telescopic rod 802 to retract, as follows: Figures 11-12 As shown, the lifting cylinder 804 then continues to extend, causing the insert 801 to move upward. The locking block 806 on the insert 801 also moves upward, and simultaneously, the locking block 806 is pulled by the pull rope 805, causing it to move into the slide groove 8011 and compress the second spring 807. After the lifting cylinder 804 completes its extension, the locking block 806 retracts into the slide groove 8011, disengaging from the locking groove 1002, thus completing the unlocking process. Figure 11 As shown; after unlocking, manually lift the second end clamping module 4 and the beam clamping module 2 to separate the plug-in seat 10 from the slot 101, and the disassembly can be completed.

[0070] When the second end clamping module 4 and the beam clamping module 2 are installed, the locking mechanism 8 is kept in place. Figure 11 In the indicated state, the connector 10 is inserted into the slot 101, and the insert 801 is also inserted into the slot 101. Then, the lifting cylinder 804 retracts, and through the elastic force of the second spring 807, the locking block 806 extends out from the slide groove 8011 and inserts into the locking groove 1002 to lock. After locking, as shown... Figure 9 As shown, the lifting cylinder 804 then continues to contract until the elastic telescopic rod 802 is fully extended.

[0071] With the above design, after locking, the elastic telescopic rod 802 can be stretched to provide downward pulling force, which improves the installation effect. At the same time, the downward pulling force and the locking and unlocking of the locking block 806 are all driven by the lifting cylinder 804, so that the entire locking mechanism 8 does not need to be equipped with multiple power-providing components, that is, no power component needs to be set at the locking block 806.

[0072] Furthermore, multiple positioning cylinders 102 are fixedly installed on the workbench 1 around the slot 101. The bottom end of the positioning cylinder 102 is closed and the top end is open. Multiple positioning posts 11 are fixedly installed at the bottom of the beam clamping module 2 and the bottom of the second end clamping module 4. When the plug-in seat 10 is plugged into the slot 101, the positioning posts 11 are plugged into the positioning cylinders 102.

[0073] like Figures 8-11As shown, as a specific technical solution, a baffle plate 9 is provided on one side of the slot 101, the baffle plate 9 is connected to a transmission mechanism 12, the input end of the transmission mechanism 12 is connected to a pull rod 13, and the bottom end of the pull rod 13 is provided with a bent part.

[0074] A pusher 14 is fixedly installed on one side of the carrier 803 of the locking mechanism 8, and the pusher 14 is located above the bent part.

[0075] like Figure 13 As shown, as a specific technical solution, the transmission mechanism 12 includes a housing 1201; the housing 1201 is fixedly connected to the inner wall of the workbench 1 via a connecting frame 15; a second rotating shaft 1203 is rotatably mounted on the top of the transmission mechanism 12, and the top end of the second rotating shaft 1203 is fixedly connected to a baffle plate 9; a first rotating shaft 1202 is rotatably mounted inside the housing 1201; a bevel gear 1204 is fixedly sleeved on both the first rotating shaft 1202 and one end of the second rotating shaft 1203 located inside the housing 1201; and Two bevel gears 1204 are meshed together. A cylindrical gear 1205 is fixedly sleeved on the first rotating shaft 1202. The cylindrical gear 1205 is meshed with a rack 1206. A connecting strip 1207 is fixedly connected to the bottom end of the rack 1206. The connecting strip 1207 is connected to the guide hole 1208 opened at the bottom of the housing 1201. The top end of the connecting strip 1207 is elastically connected to the bottom inner wall of the housing 1201 through a third spring 1209. The bottom end of the connecting strip 1207 is fixedly connected to the top end of the pull rod 13.

[0076] When the beam clamping module 2 or the first end clamping module 3 is not installed at slot 101 on the workbench 1, the slot 101 is covered by the shielding plate 9 to block it.

[0077] like Figure 10 As shown, when the elastic telescopic rod 802 is fully extended, the lifting cylinder 804 is not fully retracted. At this time, the push seat 14 and the bent part of the pull rod 13 are in contact, and the lifting cylinder 804 can continue to retract.

[0078] After the beam clamping module 2 or the first end clamping module 3 is disassembled, the lifting cylinder 804 is first retracted to the position shown in the image. Figure 10After reaching the indicated state, the lifting cylinder 804 continues to retract, pushing down the bending part through the push seat 14, causing the pull rod 13 to move downward together with the connecting bar 1207 and the rack 1206, compressing the third spring 1209 until the lifting cylinder 804 is fully retracted. During the above process, the rack 1206 moves downward, and through the meshing transmission between the rack 1206 and the cylindrical gear 1205, the first rotating shaft 1202 rotates. Through the meshing transmission of the two bevel gears 1204, the second rotating shaft 1203 drives the baffle plate 9 to rotate 180°. The baffle plate 9 closes the slot 101, preventing dust and foreign objects from entering the worktable 1 through the slot 101.

[0079] When the slot 101 needs to install the beam clamping module 2 or the first end clamping module 3, the lifting cylinder 804 extends, the push seat 14 separates from the bent part of the pull rod 13, and the elastic force of the third spring 1209 drives the pull rod 13, the connecting bar 1207 and the rack 1206 to reset together. Through the meshing transmission of the rack 1206 and the cylindrical gear 1205, the first rotating shaft 1202 rotates. The first rotating shaft 1202 drives the bevel gear 1204 to rotate. Through the meshing transmission of the two bevel gears 1204, the second rotating shaft 1203 drives the baffle plate 9 to rotate. The baffle plate 9 leaves the slot 101, opening the slot 101.

[0080] A method for processing a crossbeam, the method comprising the following steps:

[0081] Step 1: Adjust the number of beam clamping modules 2 according to the length of the beam. First, remove the first end clamping module 3, then remove or install the beam clamping module 2 to add or remove beam clamping modules 2 on the workbench 1. Then reinstall the first end clamping module 3.

[0082] Step 2: The two ends of the crossbeam are clamped by the first end clamping module 3 and the second end clamping module 4.

[0083] Step 3: Beam clamping module 2 clamps the beam body at various points along the length of the beam.

[0084] Step four: The machine tool drills and mills the clamped crossbeam.

[0085] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. A modular beam machining fixture, comprising a worktable (1) fixedly installed inside a machine tool; characterized in that, Also includes: The first end clamping module (3) is fixedly installed on the left side of the workbench (1); On the right side of the first end clamping module (3), a plurality of beam clamping modules (2) and a second end clamping module (4) are arranged sequentially from near to far. The beam clamping module (2) includes a first carrier plate (201); a movable plate (203) is provided on the top of the first carrier plate (201), a first slide block (204) is fixedly installed on the bottom of the movable plate (203), a longitudinally arranged first guide rail (202) is fixedly installed on the top of the first carrier plate (201), the first slide block (204) is slidably connected to the first guide rail (202), a first push cylinder (205) is also fixedly installed on the top of the first carrier plate (201), the output end of the first push cylinder (205) is fixedly connected to the movable plate (203), a stand (206) is fixedly installed on the top of the movable plate (203), and a pressing component (207) is installed above the stand (206). The support frame (206) is also fixedly installed with a plurality of longitudinally arranged second support cylinders (208). The front side of the support frame (206) is provided with a third support cylinder (209) and a fourth support cylinder (212). The third support cylinder (209) is fixedly connected to the top surface of the movable plate (203). The bottom of the fourth support cylinder (212) is fixedly installed with a second slide block (211). The movable plate (203) is fixedly installed with a longitudinally arranged second guide rail (210). The second guide rail (210) is slidably connected to the second slide block (211). The movable plate (203) is also fixedly installed with a second push cylinder (213). The output end of the second push cylinder (213) is fixedly connected to the second slide block (211). It also includes: slots (101), a number of equally spaced slots (101) are provided on the workbench (1), a number of locking mechanisms (8) are installed inside the workbench (1), and the number of locking mechanisms (8) are respectively located below the number of slots (101); The bottom of the plurality of beam clamping modules (2) and the bottom of the second end clamping module (4) are all fixedly installed with plug-in seats (10). The plug-in seats (10) are plugged into the slots (101) and connected to the locking mechanism (8). The plug-in seats (10) are provided with locking grooves (1002). The locking mechanism (8) includes a locking block (806) and a driving member, which drives the locking block (806) to automatically insert into or leave the locking groove (1002). The driving component of the locking mechanism (8) includes a lifting cylinder (804) fixedly installed on the inner wall of the bottom of the workbench (1); a carrier (803) is fixedly installed on the output shaft end of the lifting cylinder (804), and a plurality of elastic telescopic rods (802) are provided on the carrier (803). An insert (801) is fixedly connected to the top end of the elastic telescopic rod (802), and the insert (801) is inserted into a slot (101) opened at the bottom of the plug-in seat (10). The locking groove (1002) is provided on both sides of the slot (101), and a sliding groove (8011) is provided on both sides of the insert (801). A locking block (806) is slidably installed. One end of the locking block (806) located in the slide groove (8011) has a recess (8061). A second spring (807) is provided in the recess (8061). The locking block (806) is elastically connected to the insert (801) through the second spring (807). The insert (801) has a wire groove (8012) inside. A pull rope (805) is fixedly connected to the locking block (806). The pull rope (805) passes through the wire groove (8012) and the hole opened on the carrier (803). The bottom end of the pull rope (805) is fixedly connected to the bottom inner wall of the workbench (1). The elastic telescopic rod (802) includes a fixed cylinder (8021) and a sliding cylinder (8022); the fixed cylinder (8021) is sleeved onto the sliding cylinder (8022), the fixed cylinder (8021) is fixedly installed on the carrier (803), the top end of the fixed cylinder (8021) is provided with a through groove, one end of the sliding cylinder (8022) located inside the fixed cylinder (8021) is fixedly installed with a mating seat (8023), and the mating seat (8023) is mated and installed inside the fixed cylinder (8021), a first spring (8024) is provided inside the sliding cylinder (8022), the sliding cylinder (8022) is elastically connected to the bottom of the fixed cylinder (8021) through the first spring (8024), the outer wall of the sliding cylinder (8022) is mated and connected to the groove wall of the through groove, and the top end of the sliding cylinder (8022) is fixedly connected to the bottom of the insert (801).

2. The modular beam machining fixture as described in claim 1, characterized in that: The first end clamping module (3) and the second end clamping module (4) both include a second carrier plate (5), a hydraulic gripper (6) and a first support cylinder (7); the hydraulic gripper (6) and the first support cylinder (7) are both fixedly installed on the second carrier plate (5); the second carrier plate (5) of the first end clamping module (3) is fixedly connected to the top of the workbench (1), and the second carrier plate (5) of the second end clamping module (4) is fixedly connected to a plug-in seat (10).

3. The modular beam machining fixture as described in claim 1, characterized in that: The pressing assembly (207) includes a tilting cylinder (2071) and a pressure seat (2072); the tilting cylinder (2071) is fixedly installed on the top of the stand (206), and a connecting seat (2073) is fixedly installed on the bottom side of the pressure seat (2072). The bottom of the connecting seat (2073) is hinged to the output end of the tilting cylinder (2071). A connecting block is fixedly installed on the top side of the tilting cylinder (2071). A connecting rod (2074) is provided between the connecting block and the connecting seat (2073). The two ends of the connecting rod (2074) are respectively hinged to the connecting block and the connecting seat (2073).

4. The modular beam machining fixture as described in claim 1, characterized in that: A baffle plate (9) is provided on one side of the slot (101), and a transmission mechanism (12) is connected to the baffle plate (9). A pull rod (13) is connected to the input end of the transmission mechanism (12), and a bent part is provided at the bottom end of the pull rod (13).

5. The modular beam machining fixture as described in claim 4, characterized in that: A pusher (14) is fixedly installed on one side of the carrier (803) of the locking mechanism (8), and the pusher (14) is located above the bent part.

6. The modular beam machining fixture as described in claim 4, characterized in that: The transmission mechanism (12) includes a housing (1201); the housing (1201) is fixedly connected to the inner wall of the workbench (1) via a connecting frame (15); a second rotating shaft (1203) is rotatably mounted on the top of the transmission mechanism (12); the top end of the second rotating shaft (1203) is fixedly connected to a baffle plate (9); a first rotating shaft (1202) is rotatably mounted inside the housing (1201); a bevel gear (1204) is fixedly sleeved on the first rotating shaft (1202) and at one end of the second rotating shaft (1203) located inside the housing (1201); and the two bevel gears ( 1204) meshing connection, a cylindrical gear (1205) is fixedly sleeved on the first rotating shaft (1202), the cylindrical gear (1205) meshes with a rack (1206), the bottom end of the rack (1206) is fixedly connected to a connecting strip (1207), the connecting strip (1207) is connected to a guide hole (1208) opened at the bottom of the housing (1201), the top end of the connecting strip (1207) is elastically connected to the bottom inner wall of the housing (1201) through a third spring (1209), and the bottom end of the connecting strip (1207) is fixedly connected to the top end of the pull rod (13).

7. A method for machining a crossbeam based on the modular crossbeam machining fixture described in any one of claims 1-6, characterized in that: The processing method includes the following steps: Step 1: Adjust the number of beam clamping modules (2) according to the length of the beam. First, remove the first end clamping module (3), then remove or install the beam clamping module (2) to add or remove beam clamping modules (2) on the workbench (1), and then reinstall the first end clamping module (3). Step 2: The two ends of the crossbeam are clamped by the first end clamping module (3) and the second end clamping module (4); Step 3: The beam clamping module (2) clamps the beam body at various points along the length of the beam. Step four: The machine tool drills and mills the clamped crossbeam.

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