Rapid clamping and aligning machining tool for main body frame of feller
By designing a quick-clamping and alignment machining fixture for the main frame of logging machinery, and using a self-aligning device to accurately position each part, the problem of low efficiency in clamping and alignment of the main frame of logging machinery was solved, realizing rapid and accurate machining positioning and meeting the needs of mass production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-04
- Publication Date
- 2026-03-27
AI Technical Summary
The current processing of logging machinery main frames involves frequent clamping, alignment, measurement, and adjustment, which takes a long time and relies on the operator's experience, resulting in low efficiency and unstable accuracy, making it difficult to meet the needs of mass production.
A quick clamping and alignment machining fixture for the main frame of logging implements was designed, including a self-aligning device, a roller assembly mounting hole positioning support device, and a left rear cutter mounting hole support device. Through multiple devices, various parts of the main frame of logging implements are accurately positioned and clamped to meet the processing accuracy requirements and improve efficiency.
It enables rapid and precise positioning and clamping of the main frame of logging equipment, reduces manual adjustment time, adapts to continuous use of different types of workpieces, improves processing efficiency and accuracy, and is suitable for horizontal boring and milling and double-sided boring and milling machining centers.
Smart Images
Figure CN121733299A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a quick clamping and alignment machining fixture for the main frame of logging machinery, belonging to the field of tooling and fixture technology. Background Technology
[0002] Before machining the main frame of logging implements, clamping and positioning are required to ensure proper alignment. Specifically, the coaxiality, symmetry, and flatness of each set of hinge holes and end faces of the main frame must be adjusted to within specified ranges to ensure the production of qualified products. Current technologies for clamping the main frame of logging implements often employ simple tooling. The clamping accuracy of each machining part is then measured using a machine tool spindle, milling head, vernier calipers, and height gauge. Based on the measurement data, the clamping positions of each machining part are repeatedly adjusted until the process requirements are met. Therefore, the existing clamping and alignment process suffers from frequent measurements and adjustments, resulting in a long cycle time.
[0003] Secondly, the main frame structure of logging machinery is complex, with numerous processing elements. When clamping and aligning the workpiece, it is crucial to ensure that the clamping accuracy of all processing parts meets the process requirements. Due to the lack of dedicated clamping and alignment fixtures, the workpiece clamping accuracy must be manually measured and adjusted one by one by the operator. This method requires a high level of skill from the operator, is cumbersome, and has low clamping and alignment efficiency. In particular, when the welding deformation of the fixture is significant, it leads to repeated adjustments, further prolonging the workpiece clamping and alignment time and severely impacting workpiece processing efficiency.
[0004] Furthermore, the accuracy and quality of clamping and alignment are highly dependent on the operator's experience, and the results of clamping and alignment may vary between different batches and between different operators. Additionally, different models of main frames require reassembly of the machining tooling, resulting in a low level of continuous machining of the logging machinery's main frame.
[0005] Therefore, there is an urgent need to design and develop a quick clamping and alignment machining fixture for the main frame of logging machinery to improve the accuracy and efficiency of clamping large workpieces. Summary of the Invention
[0006] Purpose of the invention: The purpose of this invention is to overcome the shortcomings of the prior art and provide a quick clamping and alignment machining fixture for the main frame of logging implements. This fixture uses a self-centering device, a roller assembly mounting hole positioning support device, a left rear blade mounting hole support device, a rear tightening device, a protective cover support device, an upper pressing device, an inner positioning and tightening device, a front tightening device, an adjustable support device for the roller assembly mounting holes, and a top blade mounting surface support device to precisely position and clamp various parts of the logging implement's main frame, including the top blade mounting surface, chainsaw protective cover, roller assembly mounting holes, and left rear blade mounting holes. This meets the accuracy requirements of subsequent processing and improves processing efficiency.
[0007] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution: A quick-clamping and alignment machining fixture for the main frame of a logging implement, comprising: The self-aligning device for clamping and aligning each part of the main frame of the logging machinery, the positioning support device for the roller assembly mounting hole, the support device for the left rear blade mounting hole, the rear tightening device, the protective cover support device, the upper pressing device, the inner positioning and tightening device, the front tightening device, the adjustable support device for the roller assembly mounting hole, and the top blade mounting surface support device are respectively used. The self-aligning device, roller assembly mounting hole positioning support device, inner positioning and tightening device, front tightening device, roller assembly mounting hole adjustable support device, and top cutter mounting surface support device are all located on the same base.
[0008] Optionally, one end of the main frame of the logging implement is provided with a top blade mounting surface, and the other end is provided with a chainsaw protective cover; The top blade mounting surface and the chainsaw protective cover are both provided with roller mounting assembly mounting holes; The logging machine's main frame is also equipped with a left rear blade mounting hole at one end near the chainsaw guard.
[0009] Optionally, the self-aligning device consists of two sets, which are symmetrically installed at both ends of the base to contact the inner end faces of the mounting holes of the main frame roller mounting assembly. Each self-alignment device includes a base plate mounted on a base, a Y-axis sliding assembly mounted on the base plate, two first connecting plates snapped onto the sliding assembly, a transmission seat connected to the two first connecting plates, a lead screw assembly positioned between the Y-axis sliding assembly and connected to the transmission seat, an adjustment assembly connected to the end of the lead screw, two ear plate assemblies mounted on the two connecting plates respectively, two self-alignment baffles hinged between the two ear plate assemblies respectively, a wear-resistant plate positioned on one side of the self-alignment baffle, and an adjustment shim positioned at the connection between the wear-resistant plate and the self-alignment baffle.
[0010] In this solution, the adjustment assembly includes a drive shaft connecting the lead screw and a first handwheel connected to the end of the drive shaft. The first handwheels on the left and right sides rotate, driving the drive shaft and lead screw to rotate, thus providing linear power to the drive seat and the first connecting plate to slide along the Y-axis slide rail assembly. When the first connecting plate slides along the Y-axis, it drives the two ear plate assemblies and the two self-aligning baffles to adjust in the Y-axis direction. The two self-aligning baffles can rotate freely along the ear plate assemblies. By rotating the self-aligning baffles to the inner end faces of the roller mounting assembly mounting holes on both sides of the logging implement's main frame, and then rotating the two first handwheels, the automatic center baffles and wear-resistant plates on both sides are adjusted and moved along the Y-axis until the wear-resistant plates on both sides contact the inner end faces of the roller mounting assembly mounting holes on both sides of the logging implement's main frame, achieving rapid alignment of the roller mounting assembly mounting holes on the logging implement's main frame.
[0011] Optionally, the roller assembly mounting hole positioning support device is arranged near the self-aligning device, including a first limiting seat mounted on the base, a support seat arranged on the first limiting seat, and a first positioning pin connecting the support seat and the base. The first limiting seat is provided with a first groove, the support seat is slidably connected in the first groove, and the support seat is fixed by the first positioning pin.
[0012] In this solution, the support seat is slidably connected in the first groove and can slide left and right along the first groove at the bottom of the first limiting seat. It is fixed to the base by the first positioning pin. After the self-aligning device contacts the inner end face of the roller mounting assembly mounting hole on both sides of the main frame of the logging implement, the support seat supports the bottom of the roller mounting assembly mounting hole, thereby aligning the roller mounting assembly mounting hole of the main frame of the logging implement.
[0013] Optionally, the adjustable support device for the roller assembly mounting hole is disposed close to the self-aligning device and located on one side of the positioning support device for the roller assembly mounting hole; The adjustable support device for the roller assembly mounting hole includes a second limiting seat mounted on the base, a first threaded seat disposed on the second limiting seat, an adjusting bolt screwed onto the first threaded seat, and a second positioning pin fixed on the first threaded seat. The second limiting seat is provided with a second groove, the first threaded seat is connected in the second groove, and the first threaded seat is fixed by the second positioning pin.
[0014] In this design, the adjustable support device for the roller assembly mounting holes also supports the bottom of the roller assembly mounting holes on both sides of the main frame of the logging implement. The first threaded seat is slidably connected in the second groove and can be adjusted laterally along the second groove. After adjustment, it is fixed to the base by the second positioning pin so that it corresponds to the bottom of the roller assembly mounting hole. At the same time, rotating the adjusting bolt can raise and lower the adjusting bolt relative to the first threaded seat to adjust the support height of the bottom of the roller assembly mounting hole.
[0015] Optionally, the base is provided with a base plate at the bottom, and the left rear knife mounting hole support device, the rear clamping device, and the protective cover support device are all provided on the base plate; The rear clamping device is used to clamp the top of the chainsaw protective cover; The protective cover support device is used to support the bottom of the chainsaw protective cover; The left rear blade mounting hole support device is used to support the bottom surface of the left rear blade mounting hole.
[0016] In this solution, the left rear blade mounting hole and chainsaw protective cover at the rear end of the logging machine's main frame are supported and secured by the left rear blade mounting hole support device, the rear side clamping device, and the protective cover support device, respectively, so that the rear end of the logging machine's main frame can be stably suspended from the base.
[0017] Optionally, the left rear knife mounting hole support device includes an X-axis guide rail mounted on the base plate, a second connecting plate snapped onto the X-axis guide rail, an extended support seat provided on the second connecting plate, a second threaded seat screwed onto the extended support seat, and a third positioning pin connected to the second connecting plate. The substrate has a pin hole that matches the third positioning pin, which is used to limit the second connecting plate through the third positioning pin.
[0018] In this solution, the position of the second threaded seat can be adjusted according to different workpiece models through the sliding connection between the second connecting plate and the X-axis guide rail, so that the second threaded seat corresponds to the bottom of the left rear tool mounting hole. At the same time, the second threaded seat is threadedly connected to the extended support seat, and the support height of the left rear tool mounting hole can be adjusted by rotating the second threaded seat.
[0019] Optionally, the protective cover support device includes a support plate 603 mounted on a base plate, a slider assembly and an L-shaped connecting block connected to the support plate, and an adjusting screw connected between the slider assembly and the L-shaped connecting block; The slider assembly includes a lower slider connected to a support plate and an upper slider inserted onto the lower slider; The bottom of the upper slider is provided with a rectangular groove, and the top of the lower slider is provided with a first rectangular boss for fitting into the rectangular groove. Both the lower slider and the upper slider are wedge-shaped blocks, and the lower slider and the upper slider are fitted together by a rectangular groove and a first rectangular boss to form a cuboid; The upper slider has a limiting groove on one side for fitting with the adjusting screw.
[0020] In this design, the lower and upper sliders can slide along the wedge surface, thereby enabling fine-tuning of the chainsaw guard. Once adjusted to the correct position, the adjusting screw is used to press against the upper slider, thus limiting its position.
[0021] Optionally, the upper clamping device is located on one side of the base near the left rear knife mounting hole support device, the rear clamping device, and the protective cover support device, and includes two screws symmetrically connected to the base and a pressure plate detachably connected to the two screws; The two screws are used to be inserted into the main frame of the logging equipment, and the pressure plate is used to connect to the two screws that pass through the main frame of the logging equipment, so as to tighten the other side of the main frame of the logging equipment.
[0022] In this design, the pressure plate is connected to two screws that pass through the main frame of the logging equipment. The pressure plate is fixed to the top side of the main frame of the logging equipment as the screws pass through, thereby pressing the upper side of the main frame of the logging equipment. At the same time, the upper pressing device is located in the middle of the base, which can better maintain the stability of the main frame of the logging equipment during the processing.
[0023] Optionally, the inner positioning and tightening device is located in the middle of the two self-centering devices, including a reducer mounted on the base, a positioning block mounted on one side of the reducer, and a tightening bolt screwed to the other side of the reducer. The reducer is equipped with a gear assembly, and the power output end of the gear assembly is connected to an adjustment handwheel; The power output end of the gear assembly is provided with a first boss, and the bottom of the tightening bolt is provided with a first groove for insertion into the first boss; In this solution, the gear inside the gearbox is rotated by turning the handwheel, which in turn drives the tightening bolt to rotate, thereby tightening the inner side of the main frame of the logging equipment.
[0024] Optionally, the front clamping device is provided relative to the rear clamping device, and the front clamping device and the rear clamping device are used to clamp the front and rear ends of the main frame of the logging implement, respectively.
[0025] Optionally, the top cutter mounting surface support device includes a threaded base mounted on the base, a support block connected to the threaded base, a threaded sleeve connected to the support block, and a rotating rocker arm radially connected to the threaded sleeve. The threaded base is provided with a third groove, and the bottom of the support block is provided with a second boss. The cooperation of the third groove and the second boss is used to limit the rotation angle of the support block. The threaded sleeve has a step inside, which is used to contact the stepped surface of the second boss; The support block is also provided with a second rectangular boss to avoid clamping interference.
[0026] In this solution, the threaded sleeve is rotated by a rocker arm. When the threaded sleeve rotates, the support block moves up and down through the step in its inner hole, thereby achieving support and tightening of the inner side of the main frame of the logging machinery.
[0027] Optionally, the edge of the substrate is provided with several mounting grooves for adaptation to horizontal boring and milling machining centers and double-sided boring and milling machining centers, respectively.
[0028] Beneficial effects: Compared with the prior art, the present invention has the following advantages: 1. The self-aligning device, roller assembly mounting hole positioning support device, left rear blade mounting hole support device, rear clamping device, protective cover support device, upper clamping device, inner positioning and clamping device, front clamping device, roller assembly mounting hole adjustable support device, and top blade mounting surface support device are used to accurately position and clamp the top blade mounting surface, chainsaw protective cover, roller assembly mounting hole, and left rear blade mounting hole of the logging implement main frame, respectively, to meet the accuracy requirements of subsequent processing and improve processing efficiency.
[0029] 2. During the processing, the mounting slots on the base plate are compatible with both horizontal boring and milling machining centers and double-sided boring and milling machining centers, ensuring that the clamping and alignment machining fixtures can be quickly and accurately positioned on both types of machining centers.
[0030] 3. The roller assembly mounting hole positioning support device can position and fully clamp the inner end face of the roller assembly mounting hole during the initial clamping of the logging machinery main frame, avoiding suspension during the initial clamping. Combined with the adjustable support device for the roller assembly mounting hole, the support height of the roller assembly mounting hole can be adjusted, providing a reliable benchmark for multi-position clamping and support of the front tightening device, inner positioning and tightening device, self-centering device, rear tightening device, protective cover support device, and upper pressing device. This further meets the rapid positioning requirements during batch clamping of logging machinery main frames and the continuous use of different models of logging machinery main frames, reducing manual adjustment time. Attached Figure Description
[0031] Figure 1 The diagram shown is a structural diagram of the quick clamping and alignment machining tooling for the main frame of the logging machinery of the present invention. Figure 2The figure shown is an embodiment of the quick clamping and alignment machining tooling for the main frame of the logging machinery of the present invention; Figure 3 The diagram shown is a structural schematic of the self-centering device of the present invention; Figure 4 The diagram shown is a structural schematic of the base of this invention; Figure 5 The diagram shown is a structural schematic of the inner positioning and clamping device of the present invention; Figure 6 The diagram shown is a structural schematic of the base, substrate, and various components of this invention. Figure 7 The diagram shown is a structural schematic of the main frame of the logging machinery of the present invention.
[0032] Attached Figures: Base 10, Base Plate 101, Top Cover Plate 102, Side Plate 103, Vertical Plate 104, Self-aligning Device 20, Base Plate 201, Y-axis Sliding Assembly 202, First Connecting Plate 203, Transmission Seat 204, Lead Screw Assembly 205, Ear Plate Assembly 206, Wear-resistant Plate 207, Adjusting Shim 208, Self-aligning Baffle 209, Transmission Shaft 210, Bearing Seat 211, First Handwheel 212, Roller Assembly Mounting Hole Positioning Support Device 30, First Limit Seat 301, Support Seat 302, First Positioning Pin 303, Left Rear Tool Mounting Hole Support Device 40, Guide Rail Stop 401, X-axis Guide Rail 402, Second Connecting Plate 403, Extended Support Seat 404, Second Threaded Seat 405, Third Positioning Pin 406, Rear Tightening Device 50, Rear Tightening Support 501, Protective Cover Support Device 60, Upper Slider 601, Lower slider; 602, Support plate; 603, L-shaped connecting block; 604, Adjusting screw; 605, Upper clamping device; 70, Pressure plate; 701, Screw; 702, Inner positioning, inner positioning and clamping device; 80, Reducer; 801, Positioning block; 802, Clamping bolt; 803, Adjusting handwheel; 804, Front clamping device; 90, Adjustable support device for roller assembly mounting hole; 100, Second limit seat; 1001, First threaded seat; 1002, Adjusting bolt; 1003, Second positioning pin; 1004, Top blade mounting surface support device; 110, Support block; 1101, Threaded sleeve; 1102, Threaded base; 1103, Rotating rocker arm; 1104, Logging implement main frame; 120, Top blade mounting surface; 1201, Chainsaw protective cover; 1204, Roller mounting assembly mounting hole; 1202, Left rear blade mounting hole; 1203. Detailed Implementation
[0033] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.
[0034] Example 1
[0035] A quick-clamping and alignment machining fixture for the main frame of a logging machine, such as... Figure 1 The system includes: a self-aligning device 20, a roller assembly mounting hole positioning support device 30, a left rear blade mounting hole support device 40, a rear tightening device 50, a protective cover support device 60, an upper pressing device 70, an inner positioning and tightening device 80, a front tightening device 90, an adjustable roller assembly mounting hole support device 100, and a top blade mounting surface support device 110, thereby achieving clamping and alignment of each part of the logging implement's main frame 120. The self-aligning device 20, the roller assembly mounting hole positioning support device 30, the inner positioning and tightening device 80, the front tightening device 90, the adjustable roller assembly mounting hole support device 100, and the top blade mounting surface support device 110 are all located on the same base 10. Figure 2 and Figure 7 The main frame 120 of the logging equipment shown includes the following components: top blade mounting surface 1201, chainsaw guard 1204, roller mounting assembly mounting hole 1202, and left rear blade mounting hole 1203. The top blade mounting surface 1201 is located at the front end of the logging equipment main frame 120, the chainsaw guard 1204 is located at the rear end of the logging equipment main frame 120, the roller mounting assembly mounting hole 1202 is located on both sides of the logging equipment main frame 120 and between the top blade mounting surface 1201 and the chainsaw guard 1204, and the left rear blade mounting hole 1203 is located at the rear end of the logging equipment main frame 120 and on the side away from the chainsaw guard 1204.
[0036] The number of self-aligning devices 20 is two sets, which are symmetrically installed along the left and right sides of the base 10. They can center and correct both sides of the main frame 120 of the logging machinery, avoid the situation of one side being suspended and unstable, and reduce the number of subsequent adjustments.
[0037] In some possible implementations, the two sets of self-aligning devices 20 respectively contact the inner end faces of the mounting holes 1202 of the main frame roller mounting assembly on both sides; such as Figure 3Each self-aligning device 20 shown includes: a base plate 201, a Y-axis sliding assembly 202, a first connecting plate 203, a transmission seat 204, a lead screw assembly 205, an adjustment assembly, an ear plate assembly 206, a self-aligning baffle 209, a wear-resistant plate 207, and an adjustment shim 208; wherein, the base plate 201 is mounted on the base 10, the Y-axis sliding assembly 202 is disposed on the base plate 201, and there are two first connecting plates 203, which are correspondingly engaged with the sliding assembly. The transmission seat 204 is connected to the two first connecting plates 203; the lead screw assembly 205 is located between the Y-axis sliding assembly 202 and is located on the base 10 through the front and rear bearing seats 211; the adjusting assembly is connected to the end of the lead screw, and the two ear plate assemblies 206 are respectively installed on the two connecting plates; the two self-centering baffles 209 are respectively hinged between the two ear plate assemblies 206, the wear-resistant plate 207 is located on one side of the self-centering baffle 209, and the adjusting shim 208 is located at the connection between the wear-resistant plate 207 and the self-centering baffle 209.
[0038] The adjustment assembly in this embodiment includes a drive shaft 210 and a first handwheel 212. The drive shaft 210 is connected to the end of the lead screw, and the first handwheel 212 is connected to the drive shaft 210. The drive seat 204 is connected to the lead screw, thereby causing the two first handwheels 212 on the left and right sides to rotate respectively. The first handwheel 212 drives the drive shaft 210 and the lead screw to rotate, thereby providing linear power to the drive seat 204 and the first connecting plate 203 to slide along the Y-axis slide rail assembly.
[0039] When the first connecting plate 203 slides along the Y-axis, it drives the two ear plate assemblies 206, the two self-centering baffles 209, and the wear-resistant plate 207 to adjust in the Y-axis direction. The two self-centering baffles 209 can rotate freely along the ear plate assembly 206. By rotating the self-centering baffles 209 to the inner end face between the roller mounting holes 1202 of the logging machine main frame 120, and then rotating the two first handwheels 212, the automatic center baffles and wear-resistant plates 207 on the left and right sides are adjusted and moved in the Y-axis direction until the wear-resistant plates 207 on the left and right sides respectively contact the inner end face of the roller mounting holes 1202 on both sides of the logging machine main frame 120, so as to quickly center and align the inner end face of the roller mounting holes 1202 on both sides of the logging machine main frame 120.
[0040] In some possible implementations, the roller assembly mounting hole positioning support device 30 is located near the self-aligning device 20, enabling it to position and clamp the roller assembly mounting holes 1202 on both sides of the logging implement main frame 120, such as... Figure 6The roller assembly mounting hole positioning support device 30 shown includes: a first limiting seat 301, a support seat 302, and a first positioning pin 303; the first limiting seat 301 is mounted on the base 10, the support seat 302 is disposed on the first limiting seat 301, and the support seat 302 is fixed to the base 10 by the first positioning pin 303; the first limiting seat 301 is provided with a first groove, the support seat 302 is slidably connected to the first groove, and the support seat 302 is fixed by the first positioning pin 303.
[0041] In this embodiment, the support base 302 is slidably connected in the first groove, which is provided along the bottom of the first limiting seat 301. This allows the support base 302 to slide along the first groove in the left and right directions. In the initial state, the support base 302 can move freely within the first groove to adjust its position according to actual needs. After the self-aligning device 20 contacts the inner end face of the roller mounting assembly mounting holes 1202 on both sides of the logging machinery main frame 120, the operator needs to further adjust the position of the support base 302 to accurately correspond to the support position of the roller assembly mounting hole. After the position of the support base 302 is adjusted to the correct position, the first positioning pin 303 is used to fix the support base 302 to the base 10 to ensure that the support base 302 will not shift during subsequent work, thereby ensuring the stability of the support positioning. After the support base 302 is fixed, effective support positioning of the bottom of the roller assembly mounting hole can be achieved. By using this support and positioning method, combined with the contact between the self-aligning device 20 and the inner end face of the mounting hole, the goal of accurately aligning the mounting hole 1202 of the roller mounting assembly of the logging implement main frame 120 is finally achieved.
[0042] In some possible implementations, such as Figure 6 As shown, the adjustable support device 100 for the roller assembly mounting hole is located near the self-aligning device 20 and on one side of the roller assembly mounting hole positioning support device 30; it is also used to position the roller assembly mounting hole. The adjustable support device 100 for the roller assembly mounting hole includes: a second limiting seat 1001, a first threaded seat 1002, an adjusting bolt 1003, and a second positioning pin 1004; the second limiting seat 1001 is mounted on the base 10, the first threaded seat 1002 is disposed on the second limiting seat 1001, the adjusting bolt 1003 is screwed onto the first threaded seat 1002, and the second positioning pin 1004 is fixed on the first threaded seat 1002; The second limiting seat 1001 is provided with a second groove, the first threaded seat 1002 is connected in the second groove, and the first threaded seat 1002 is fixed by the second positioning pin 1004.
[0043] In this embodiment, the adjustable support device 100 for the roller assembly mounting holes also supports the bottom of the roller assembly mounting holes 1202 on both sides of the logging implement main frame 120. The first threaded seat 1002 is slidably connected in the second groove and can be adjusted left and right along the second groove. In actual operation, the operator can flexibly adjust the first threaded seat 1002 according to the specific position of the roller assembly mounting holes 1202 on the logging implement main frame 120, allowing it to slide left and right in the second groove. When the first threaded seat 1002 is adjusted to the ideal position corresponding to the bottom of the roller assembly mounting hole, the second positioning pin 1004 is used to fix the first threaded seat 1002 on the base 10; at the same time, rotating the adjusting bolt 1003 allows the adjusting bolt 1003 to rise and fall relative to the first threaded seat 1002, thereby adjusting the support height of the bottom of the roller assembly mounting hole and ensuring that the support position and support height are accurate.
[0044] In some possible implementations, such as Figure 1 , Figure 2 and Figure 4 As shown, a base plate 101 is provided at the bottom of the base 10. The left rear blade mounting hole support device 40, the rear side tightening device 50, and the protective cover support device 60 are all provided on the base plate 101. The rear side tightening device 50 is used to tighten the top of the chainsaw protective cover 1204, the protective cover support device 60 is used to support the bottom of the chainsaw protective cover 1204, and the left rear blade mounting hole support device 40 is used to support the bottom surface of the left rear blade mounting hole 1203. The left rear blade mounting hole support device 40, the rear side tightening device 50, and the protective cover support device 60 can support and tighten the rear end of the logging implement main frame 120. In this embodiment, the left rear blade mounting hole 1203 and the chainsaw protective cover 1204 at the rear end of the logging machine main frame 120 are supported and tightened by the left rear blade mounting hole support device 40, the rear side tightening device 50, and the protective cover support device 60, respectively, so that the rear end of the logging machine main frame 120 can be stably suspended on the base 10.
[0045] In some possible implementations, such as Figure 6 As shown, the left rear blade mounting hole support device 40 includes: an X-axis guide rail 402, a second connecting plate 403, an extended support base 302, a second threaded seat 405, and a third positioning pin 406; wherein, the X-axis guide rail 402 is mounted on the base plate 101, the second connecting plate 403 is snapped onto the X-axis guide rail 402, the extended support base 302 is disposed on the second connecting plate 403, the second threaded seat 405 is screwed onto the extended support base 302, and the third positioning pin 406 is connected to the second connecting plate 403; The substrate 101 has a pin hole adapted to the third positioning pin 406, which is used to limit the second connecting plate 403 through the third positioning pin 406.
[0046] In this embodiment, both ends of the X-axis guide rail 402 are provided with guide rail blocks 401 to limit the sliding stroke of the second connecting plate 403. Through the sliding connection between the second connecting plate 403 and the X-axis guide rail 402, the position of the second threaded seat 405 can be adjusted according to different workpiece models, so that the second threaded seat 405 corresponds to the bottom of the left rear tool mounting hole 1203. At the same time, the second threaded seat 405 is threadedly connected to the extended support seat 302. Rotating the second threaded seat 405 can adjust the support height of the left rear tool mounting hole 1203.
[0047] In some possible implementations, such as Figure 6 As shown, the protective cover support device 60 includes: a support plate 603, a slider assembly, an LL-type connecting block 604, and an adjusting screw 605; wherein, the support plate 603 is mounted on the base plate 101, the slider assembly and the LL-type connecting block 604 are both connected to the support plate 603, and the adjusting screw 605 is connected between the slider assembly and the LL-type connecting block 604; the slider assembly includes: a lower slider 602 and an upper slider 601, the lower slider 602 is connected to the support plate 603, and the upper slider 601 is inserted into the upper slider 601 on the lower slider 602; the bottom of the upper slider 601 is provided with a rectangular groove, and the top of the lower slider 602 is provided with a first rectangular boss for fitting with the rectangular groove; both the lower slider 602 and the upper slider 601 are wedge-shaped blocks, and the lower slider 602 and the upper slider 601 form a cuboid after being fitted together by the rectangular groove and the first rectangular boss; one side of the upper slider 601 is provided with a limiting groove for fitting with the adjusting screw 605.
[0048] In this embodiment, the lower slider 602 and the upper slider 601 can slide along the wedge surface, thereby enabling fine-tuning of the chainsaw guard 1204. After adjustment, the adjusting screw 605 is applied to press against the upper slider 601, thus limiting the position of the upper slider 601. In actual operation, the operator pushes the upper slider 601, allowing it to slide slowly on the wedge surface of the lower slider 602, precisely adjusting the position of the chainsaw guard 1204 until it is adjusted to the correct position. Then, the adjusting screw 605 is rotated to apply a pressing force to the upper slider 601, limiting its position and ultimately achieving reliable limiting and fixing of the chainsaw guard 1204.
[0049] In some possible implementations, such as Figure 6As shown, the upper clamping device 70 is located on one side of the base 10 near the left rear blade mounting hole support device 40, the rear clamping device 50, and the protective cover support device 60. It includes two screws 702 and a pressure plate 701. Two screws 702 are symmetrically connected to the base 10, and the pressure plate 701 is detachably connected to the tops of the two screws 702. The two screws 702 are used to insert into the main frame 120 of the logging equipment, and the pressure plate 701 is used to connect to the two screws 702 passing through the main frame 120 of the logging equipment, thereby clamping the other side of the main frame 120 of the logging equipment.
[0050] In this embodiment, the pressure plate 701 is connected to two screws 702 that pass through the main frame 120 of the logging equipment. The pressure plate 701 is fixed to the top side of the main frame 120 of the logging equipment through the screws 702, thereby pressing the upper side of the main frame 120 of the logging equipment. At the same time, the upper pressing device 70 is located in the middle of the base 10, which can better maintain the stability of the main frame 120 of the logging equipment during the processing.
[0051] In some possible implementations, such as Figure 1 and Figure 5 As shown, the inner positioning and tightening device 80 is located between the two self-centering devices 20, and includes: a reducer 801, a positioning block 802, and a tightening bolt 803; wherein, the reducer 801 is mounted on the base 10, the positioning block 802 is mounted on one side of the reducer 801, and the tightening bolt 803 is screwed onto the other side of the reducer 801; the reducer 801 is provided with a gear assembly, and the power output end of the gear assembly is connected to an adjusting handwheel 804; The power output end of the gear assembly is provided with a first boss, and the bottom of the tightening bolt 803 is provided with a first groove for insertion into the first boss; wherein, both the first boss and the first groove are elliptical, and the tightening bolt 803 is connected to the housing of the reducer 801 by a threaded connection. In this embodiment, the gear assembly adopts a combination of cylindrical spur gears and bevel spur gears, which is a three-stage gear transmission. The reducer 801 transmits the power input by the adjusting handwheel 804 through the cylindrical spur gears and bevel spur gears to realize motion conversion on different planes; by rotating the adjusting handwheel 804, the gears inside the gearbox are rotated, and after the three-stage gear transmission, the tightening bolt 803 at the connection of the first boss is rotated, so that the tightening bolt is unscrewed from the reducer 801 housing and tightened inside the main frame 120 of the logging equipment.
[0052] In some possible implementations, such as Figure 1The front clamping device 90 shown is provided relative to the rear clamping device 50. The front clamping device 90 and the rear clamping device 50 are used to clamp the front and rear ends of the logging machinery main frame 120 respectively. In this embodiment, the rear clamping device 50 supports the rear end of the logging machinery main frame 120 through an integrally formed rear clamping support 501. There are two sets of front clamping devices 90, which are symmetrically installed between the self-centering devices 20. The front clamping devices 90 and the rear clamping devices 50 are arranged in a coordinated manner to ensure that the front, rear and middle parts of the logging machinery main frame 120 are stably supported, effectively eliminating stress concentration and deformation problems that may occur in the frame during processing.
[0053] In some possible implementations, such as Figure 1 and Figure 6 As shown, the top cutter mounting surface support device 110 includes: a threaded base 1103, a support block 1101, a threaded sleeve 1102, and a rotating rocker arm 1104; wherein, the threaded base 1103 is mounted on the base 10, the support block 1101 is connected to the threaded base 1103, the threaded sleeve 1102 is connected to the support block 1101, and there are multiple rotating rocker arms 1104, which are radially connected to each other on the threaded sleeve 1102; the threaded base 1103 is provided with a third groove, and the bottom of the support block 1101 is provided with a second boss, the cooperation of the third groove and the second boss is used to limit the rotation angle of the support block 1101; both the third groove and the second boss are elliptical.
[0054] The threaded sleeve 1102 has a step inside, which is used to contact the stepped surface of the second boss; The top of the support block 1101 is provided with a second rectangular boss, which can be adapted to the bottom of the top blade mounting surface 1201 of the main frame of the logging equipment. This can greatly improve the efficiency and success rate of clamping and reduce the time spent on repeated debugging and changing clamps due to clamping interference.
[0055] In this embodiment, the rocker arm 1104 is used to drive the threaded sleeve 1102 to rotate. When the threaded sleeve 1102 rotates, the support block 1101 moves up and down through the step in its inner hole, thereby achieving the support and tightening of the bottom of the top blade mounting surface 1201 of the main frame of the logging machinery.
[0056] In some possible implementations, such as Figure 4As shown, the base 10 is composed of a base plate 101, a top cover plate 102, a side plate 103, and a vertical plate 104. In this embodiment, the base 10 is a welded structure. The edge of the base plate 101 is provided with several mounting grooves, which can be matched with the mounting holes or positioning structures on the worktable of the horizontal boring and milling machining center and the double-sided boring and milling machining center, respectively. When installing the base 10, it is only necessary to align the mounting groove on the base plate 101 with the corresponding structure on the worktable of the machining center, and then use bolts to fix the base plate 101 on the worktable of the machining center.
[0057] Example 2
[0058] This embodiment provides a rapid clamping and alignment method, based on the rapid clamping and alignment fixture described in Embodiment 1, including: The operator or a special robotic arm places the main frame of the logging implement on the roller assembly mounting hole positioning support device and the roller assembly mounting hole adjustable support device. The operator adjusts the adjusting bolt on the roller assembly mounting hole adjustable support device and the second threaded seat on the left rear blade mounting hole support device so that the adjusting bolt and the second threaded seat contact the corresponding clamping parts on the main frame of the logging implement, ensuring that the main frame of the logging implement is not suspended. Slightly push the main frame of the logging implement forward to make it contact the front clamping device. Then, slightly push the main frame of the logging implement to the left to make it contact the positioning block on the right side of the inner positioning and clamping device. Then, rotate the self-centering baffle on the self-centering device to the inner end face of the mounting hole of the roller assembly of the main frame of the logging implement. Rotate the two sets of first handwheels to move the self-centering baffle along the Y-axis until the wear-resistant plates on the four self-centering baffles contact the inner end face of the mounting hole of the roller assembly of the main frame of the logging implement. Ensure that the wear-resistant plates on the four self-centering baffles completely clamp the inner end face, and achieve the initial positioning of the mounting hole of the roller assembly of the main frame of the logging implement. Then, the operator uses a height gauge to measure the center height of the four sets of mounting holes of the main frame roller assembly of the logging equipment, ensuring that the height difference of the four sets of holes is within the tolerance range. If it exceeds the tolerance, the adjusting bolts on the adjustable support device of the mounting hole of the roller assembly are adjusted until the requirements are met, so as to realize the adjustment of the support height of the mounting hole of the main frame roller assembly of the logging equipment. Rotate the adjusting handwheel on the inner positioning and tightening device to unscrew the tightening bolt on the left side of the inner positioning and tightening device from the reducer box, tighten the inner end face of the main frame of the logging implement, then use the rear tightening device to tighten the front and rear of the main frame of the logging implement, and then rotate the threaded sleeve on the top blade mounting surface support device to make the support block fully contact the bottom of the top blade mounting surface. When adjusting the protective cover support device, the operator pushes the upper slider and makes it slide slowly on the wedge surface of the lower slider to accurately adjust the position of the chainsaw protective cover until the chainsaw protective cover is adjusted into place. Then, the adjusting screw is rotated to generate a clamping force on the upper slider, thereby limiting the upper slider and finally achieving reliable limiting and fixing of the chainsaw protective cover.
[0059] Finally, use the pressure plate to fully press the main frame of the logging equipment from above, thus completing the quick and accurate clamping and alignment of the main frame of the logging equipment.
[0060] In summary, this invention uses a self-centering device, a roller assembly mounting hole positioning support device, a left rear cutter mounting hole support device, a rear clamping device, a protective cover support device, an upper clamping device, an inner positioning and clamping device, a front clamping device, an adjustable support device for the roller assembly mounting hole, and a top cutter mounting surface support device to precisely position and clamp various parts of the logging implement's main frame, including the top cutter mounting surface, chainsaw protective cover, roller assembly mounting hole, and left rear cutter mounting hole. This meets the accuracy requirements of subsequent processing and improves processing efficiency. During processing, the mounting slots on the base plate are compatible with both horizontal boring and milling machining centers and double-sided boring and milling machining centers, ensuring that the clamping and alignment tooling can be quickly and accurately positioned on both types of machining centers. The roller assembly mounting hole positioning support device can position and fully clamp the inner end face of the roller assembly mounting hole during the initial clamping of the logging machinery main frame, avoiding suspension during the initial clamping. Combined with the adjustable support device for the roller assembly mounting hole, the support height of the roller assembly mounting hole can be adjusted. This provides a reliable benchmark for multi-position clamping and support of the front clamping device, inner positioning and clamping device, self-centering device, rear clamping device, protective cover support device, and upper pressing device. This further meets the rapid positioning requirements during batch clamping of logging machinery main frames and the continuous use of different models of logging machinery main frames, reducing manual adjustment time.
[0061] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.
[0062] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.
Claims
1. A quick-clamping and alignment machining fixture for the main frame of a logging machine, characterized in that, include: The following devices are adapted to various parts of the main frame of the logging machinery: self-aligning device, roller assembly mounting hole positioning support device, left rear blade mounting hole support device, rear tightening device, protective cover support device, upper pressing device, inner positioning and tightening device, front tightening device, roller assembly mounting hole adjustable support device, and top blade mounting surface support device. The self-aligning device, roller assembly mounting hole positioning support device, inner positioning and tightening device, front tightening device, roller assembly mounting hole adjustable support device, and top cutter mounting surface support device are all located on the same base.
2. The quick clamping and alignment machining fixture for the main frame of the logging machinery according to claim 1, characterized in that, One end of the main frame of the logging equipment is the top blade mounting surface, and the other end is equipped with a chainsaw protective cover; The top blade mounting surface and the chainsaw protective cover are both provided with roller mounting assembly mounting holes; The logging machine's main frame is also equipped with a left rear blade mounting hole at one end near the chainsaw guard.
3. The quick clamping and alignment machining fixture for the main frame of the logging machinery according to claim 1, characterized in that, The self-aligning device consists of two sets, which are symmetrically installed at both ends of the base to contact the inner end faces of the mounting holes of the main frame roller mounting assembly. Each self-alignment device includes a base plate mounted on a base, a Y-axis sliding assembly mounted on the base plate, two first connecting plates snapped onto the sliding assembly, a transmission seat connected to the two first connecting plates, a lead screw assembly positioned between the Y-axis sliding assembly and connected to the transmission seat, an adjustment assembly connected to the end of the lead screw, two ear plate assemblies mounted on the two connecting plates respectively, two self-alignment baffles hinged between the two ear plate assemblies respectively, a wear-resistant plate positioned on one side of the self-alignment baffle, and an adjustment shim positioned at the connection between the wear-resistant plate and the self-alignment baffle.
4. The quick clamping and alignment machining fixture for the main frame of the logging machinery according to claim 1, characterized in that, The roller assembly mounting hole positioning support device is arranged near the self-aligning device, and includes a first limiting seat mounted on the base, a support seat arranged on the first limiting seat, and a first positioning pin connecting the support seat and the base. The first limiting seat is provided with a first groove, the support seat is slidably connected in the first groove, and the support seat is fixed by the first positioning pin.
5. The quick clamping and alignment machining fixture for the main frame of the logging machinery according to claim 1, characterized in that, The adjustable support device for the roller assembly mounting hole is located near the self-aligning device and is situated on one side of the positioning support device for the roller assembly mounting hole. The adjustable support device for the roller assembly mounting hole includes a second limiting seat mounted on the base, a first threaded seat disposed on the second limiting seat, an adjusting bolt screwed onto the first threaded seat, and a second positioning pin fixed on the first threaded seat. The second limiting seat is provided with a second groove, the first threaded seat is connected in the second groove, and the first threaded seat is fixed by the second positioning pin.
6. The quick-clamping and alignment machining fixture for the main frame of the logging machinery according to claim 1, characterized in that, The base is provided with a base plate at its bottom, and the left rear knife mounting hole support device, the rear side clamping device, and the protective cover support device are all provided on the base plate; The rear clamping device is used to clamp the top of the chainsaw protective cover; The protective cover support device is used to support the bottom of the chainsaw protective cover; The left rear blade mounting hole support device is used to support the bottom surface of the left rear blade mounting hole.
7. The quick clamping and alignment machining fixture for the main frame of the logging machinery according to claim 6, characterized in that, The left rear knife mounting hole support device includes an X-axis guide rail mounted on the base plate, a second connecting plate snapped onto the X-axis guide rail, an extended support seat provided on the second connecting plate, a second threaded seat screwed onto the extended support seat, and a third positioning pin connected to the second connecting plate. The substrate has a pin hole that matches the third positioning pin, which is used to limit the second connecting plate through the third positioning pin.
8. The quick clamping and alignment machining fixture for the main frame of the logging machinery according to claim 6, characterized in that, The protective cover support device includes a support plate mounted on a base plate, a slider assembly and an L-shaped connecting block connected to the support plate, and an adjusting screw connected between the slider assembly and the L-shaped connecting block. The slider assembly includes a lower slider connected to a support plate and an upper slider inserted onto the lower slider; The bottom of the upper slider is provided with a rectangular groove, and the top of the lower slider is provided with a first rectangular boss for fitting into the rectangular groove. Both the lower slider and the upper slider are wedge-shaped blocks, and the lower slider and the upper slider are fitted together by a rectangular groove and a first rectangular boss to form a cuboid; The upper slider has a limiting groove on one side for fitting with the adjusting screw.
9. The quick clamping and alignment machining fixture for the main frame of the logging machinery according to claim 1, characterized in that, The upper clamping device is located on one side of the base near the left rear knife mounting hole support device, the rear clamping device, and the protective cover support device, and includes two screws symmetrically connected to the base and a pressure plate detachably connected to the two screws. The two screws are used to be inserted into the main frame of the logging equipment, and the pressure plate is used to connect to the two screws that pass through the main frame of the logging equipment, so as to tighten the other side of the main frame of the logging equipment.
10. The quick clamping and alignment machining fixture for the main frame of the logging machinery according to claim 1, characterized in that, The inner positioning and tightening device is located between the two self-aligning devices, and includes a reducer mounted on the base, a positioning block mounted on one side of the reducer, and a tightening bolt screwed to the other side of the reducer. The reducer is equipped with a gear assembly, and the power output end of the gear assembly is connected to an adjustment handwheel; The power output end of the gear assembly is provided with a first boss, and the bottom of the tightening bolt is provided with a first groove for insertion into the first boss.
11. The quick clamping and alignment machining fixture for the main frame of the logging machinery according to claim 1, characterized in that, The front clamping device is provided relative to the rear clamping device, and the front clamping device and the rear clamping device are used to clamp the front and rear ends of the main frame of the logging machinery, respectively.
12. The quick clamping and alignment machining fixture for the main frame of the logging machinery according to claim 1, characterized in that, The top cutter mounting surface support device includes a threaded base mounted on a base, a support block connected to the threaded base, a threaded sleeve connected to the support block, and a rotating rocker arm radially connected to the threaded sleeve. The threaded base is provided with a third groove, and the bottom of the support block is provided with a second boss. The cooperation of the third groove and the second boss is used to limit the rotation angle of the support block. The threaded sleeve has a step inside, which is used to contact the stepped surface of the second boss; The top of the support block is provided with a second rectangular boss to avoid clamping interference.
13. The quick clamping and alignment machining fixture for the main frame of the logging machinery according to claim 6, characterized in that, The substrate has several mounting grooves on its edge for adaptation to horizontal boring and milling machining centers and double-sided boring and milling machining centers, respectively.