A vertical machining tool for camshaft

Abstract

The application provides a vertical machining tool for a camshaft, and belongs to the technical field of camshaft machining. The vertical machining tool comprises a bottom frame, a first driving assembly, a first clamping assembly, a second clamping assembly, a third driving assembly and a detection assembly. A support plate is fixedly arranged on the upper portion of the bottom frame. The first clamping assembly is slidably arranged on one side of the support plate and is used for clamping one end of a camshaft rod. The first driving assembly is installed on the side wall of the support plate and is used for driving the first clamping assembly to move up and down. The second clamping assembly is slidably arranged on the inner side of the bottom frame and is used for clamping the other end of the camshaft rod. Compared with the prior art, the embodiment of the application can realize automatic vertical standing and flattening of the camshaft rod without the aid of hoisting machinery when the camshaft rod is vertically machined, thereby improving the machining efficiency of the camshaft rod. Moreover, the vertical state of the camshaft rod can be detected during the vertical standing process, thereby improving the machining quality.

Description

Technical Field

[0001] This invention belongs to the field of camshaft machining technology, specifically a vertical machining fixture for camshafts. Background Technology

[0002] The camshaft is a component in a piston engine. During production, the forged camshaft rod is usually machined first and then finely polished. Because vertical machine tools have a small footprint and high space utilization, they are often used to process camshafts.

[0003] Currently, when machining camshafts using vertical machine tools, specialized hoisting machinery is required to lift the camshaft rod. During the hoisting process, the camshaft rod is adjusted from a horizontal to an vertical position. Then, a clamping mechanism is used to clamp the vertically positioned camshaft rod, and finally, the clamped camshaft rod is machined. After the camshaft rod is machined, it is again lifted by the hoisting machinery to lay it flat. This machining method requires a lot of preparation time, which affects the machining efficiency of the camshaft rod. In addition, the use of hoisting machinery also occupies a lot of space, which is not conducive to space saving. Summary of the Invention

[0004] To address the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a vertical machining fixture for camshafts.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A vertical machining fixture for camshafts includes a base frame, a first drive assembly, a first clamping assembly, a second clamping assembly, a third drive assembly, and a detection assembly.

[0007] A support plate is fixedly installed on the upper part of the bottom frame.

[0008] The first clamping assembly is slidably disposed on one side of the bracket plate and is used to clamp one end of the camshaft rod.

[0009] The first drive assembly is mounted on the side wall of the support plate and is used to drive the first clamping assembly to move up and down.

[0010] The second clamping assembly is slidably disposed inside the bottom frame for clamping the other end of the camshaft rod.

[0011] The third drive assembly is disposed inside the bottom frame. When the first drive assembly moves the clamping assembly upward, the third drive assembly drives the second clamping assembly to move laterally along the inner side of the bottom frame to provide support for the camshaft rod.

[0012] The detection component is mounted on the first clamping component and is used to detect the vertical state of the camshaft rod.

[0013] As a further improvement of the present invention: the first drive assembly includes a motor and a first lead screw, the motor is fixedly mounted on the inner top wall of the bracket plate, and the first lead screw is mounted on the output end of the motor, and the first lead screw is vertically distributed.

[0014] The first clamping assembly includes a first threaded sleeve, a first rotating shaft, a cover plate, and a base. The cover plate is hinged to the upper part of the base. A first arc-shaped opening is provided on one side of the cover plate, and a second arc-shaped opening that mates with the first arc-shaped opening is provided on one side of the base. A first screw is provided on the cover plate, and a screw hole that matches the first screw is provided on the side wall of the base. One end of the first rotating shaft is rotatably connected to the side wall of the base, and the other end is fixedly connected to the first threaded sleeve. The first threaded sleeve is sleeved on the outside of the first lead screw and threadedly engaged with the first lead screw.

[0015] As a further improvement of the present invention: vertically distributed guide rails are fixedly installed on the side wall of the support plate.

[0016] The first clamping assembly further includes a slider, which is fixedly disposed on the side wall of the first threaded sleeve and slides in cooperation with the guide rail.

[0017] As a further improvement of the present invention: the second clamping assembly includes a clamping box, a handle, a second screw, and a clamping plate.

[0018] The clamping box is open at the top, and a placement groove adapted to the camshaft rod is opened on the upper side wall of the clamping box. The second screw passes through the side wall of the clamping box and is threaded into the clamping box. The handle is located at the end of the second screw located outside the clamping box, and the clamping plate is fixedly located at the end of the second screw located inside the clamping box.

[0019] As a further improvement of the present invention: a second driving component is also provided below the clamping box. After the clamping plate clamps the camshaft rod, the second driving component is used to drive the clamping box to rotate, thereby driving the camshaft rod to rotate.

[0020] As a further improvement of the present invention: the second drive assembly includes a protective housing and a second rotating shaft.

[0021] The protective box is located below the clamping box. A drive motor is installed inside the protective box. One end of the second rotating shaft is connected to the output end of the drive motor, and the other end extends to the outside of the protective box and is fixedly connected to the bottom of the clamping box.

[0022] As a further improvement of the present invention: a second threaded sleeve is fixedly provided on the side wall of the protective box.

[0023] The third drive assembly includes a first bevel gear, a second bevel gear, and a second lead screw.

[0024] The first bevel gear is fixedly mounted at the end of the first lead screw away from the motor. The second lead screw is rotatably mounted inside the bottom frame. The second bevel gear is fixedly mounted outside the second lead screw and meshes with the first bevel gear. The second threaded sleeve is sleeved outside the second lead screw and threadedly engages with the second lead screw.

[0025] As a further improvement of the present invention: a guide rod is also fixedly provided inside the bottom frame, and a sliding sleeve is also fixedly provided on the side wall of the protective box, the sliding sleeve being slidably sleeved on the outside of the guide rod.

[0026] As a further improvement of the present invention: a plurality of supports are fixedly provided on the inner walls of the first arc-shaped opening and the second arc-shaped opening, and a set of rollers are rotatably provided on one side of each set of supports, and the plurality of rollers are distributed along the axial direction of the first arc-shaped opening and the second arc-shaped opening.

[0027] As a further improvement to the present invention: a slot is provided on the side wall of the base.

[0028] The detection assembly includes a first conductive rod, a rotating wheel, a support shaft, an indicator light, a power supply, a second conductive rod, and a contact block.

[0029] The rotating wheel is disposed inside the slot. One end of the support shaft is rotatably connected to the inner wall of the slot, and the other end is fixedly connected to the eccentric position of the side wall of the rotating wheel. The power contact block is fixedly disposed on the circumferential side wall of the rotating wheel. The power supply is fixedly disposed on the outer wall of the base. One end of the first conductive rod is connected to the negative terminal of the power supply, and the other end is connected in series with the indicator light and then distributed opposite to the second conductive rod. The end of the second conductive rod away from the first conductive rod is connected to the positive terminal of the power supply.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] In this embodiment of the invention, when vertical machining of a camshaft rod is required, the camshaft rod to be machined can be placed flat above the bottom frame, so that one end of the camshaft rod acts on the first clamping assembly and the other end acts on the second clamping assembly. The first clamping assembly then clamps one end of the camshaft rod, and the first drive assembly moves the first clamping assembly upwards along one side of the support plate, thereby pulling one end of the camshaft rod upwards. The other end of the camshaft rod, under the action of gravity, remains suspended on the second clamping assembly, causing the camshaft rod to gradually rotate towards a vertical state. During this process, the third drive assembly moves the second clamping assembly laterally along the inner side of the bottom frame to provide continuous support for the other end of the camshaft rod. When the detection assembly detects that the camshaft rod has rotated to a vertical state, the first drive assembly stops moving the clamping assembly upwards, and the third drive assembly stops moving the second clamping assembly laterally. At this time, the second clamping assembly clamps the other end of the camshaft rod, and then... The machining mechanism (not shown in the figure) is used to process the vertical camshaft rod. After the camshaft rod is processed, the clamping assembly of the second clamping component is released from the other end of the camshaft rod. Then, the second drive component drives the first clamping component to move downward, thereby lowering one end of the camshaft rod. At the same time, the third drive component drives the second clamping component to move laterally in the opposite direction along the inner side of the bottom frame, thereby causing the other end of the camshaft rod to move adaptively, so that the vertical camshaft rod is gradually flattened. After the camshaft rod is flattened again above the bottom frame, the clamping assembly of the first clamping component is released from the one end of the camshaft rod, and then the processed camshaft rod can be removed from the top of the bottom frame. Compared with the prior art, when processing the camshaft rod vertically, there is no need to use lifting machinery, and the camshaft rod can be automatically erected and flattened, thereby improving the processing efficiency of the camshaft rod. In addition, the vertical status of the camshaft rod can be detected during the erection process, thereby improving the processing quality. Attached Figure Description

[0032] Figure 1 A schematic diagram of the structure of a vertical machining fixture for a camshaft. Figure 1 ;

[0033] Figure 2 A schematic diagram of the structure of a vertical machining fixture for a camshaft. Figure 2 ;

[0034] Figure 3 A schematic diagram of the structure of a vertical machining fixture for a camshaft. Figure 3 ;

[0035] Figure 4 for Figure 1 Enlarged view of region A in the middle;

[0036] Figure 5 for Figure 1 Enlarged view of region B in the middle;

[0037] Figure 6 for Figure 1 Enlarged diagram of region C in the middle;

[0038] Figure 7 for Figure 2 Enlarged schematic diagram of region D in the middle;

[0039] In the diagram: 10-base frame, 101-support plate, 102-guide rail, 103-guide rod, 20-first drive assembly, 201-motor, 202-first lead screw, 30-first clamping assembly, 301-slider, 302-first threaded sleeve, 303-first rotating shaft, 304-cover plate, 3041-first arc-shaped opening, 305-base, 3051-second arc-shaped opening, 306-first screw, 307-roller, 308-support, 309-slot, 40-second clamping assembly, 401-clamping box, 4 02-Placement slot, 403-Handle, 404-Second screw, 405-Clamping plate, 50-Second drive assembly, 501-Protective box, 502-Sliding sleeve, 503-Second threaded sleeve, 504-Second rotating shaft, 60-Third drive assembly, 601-First bevel gear, 602-Second bevel gear, 603-Second lead screw, 70-Detection assembly, 701-First conductive rod, 702-Roller, 703-Support shaft, 704-Indicator light, 705-Power supply, 706-Second conductive rod, 707-Connector block. Detailed Implementation

[0040] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0041] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0042] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Please see Figure 1 , Figure 2 as well as Figure 3 This embodiment provides a vertical machining fixture for a camshaft, including a base frame 10, a first drive assembly 20, a first clamping assembly 30, a second clamping assembly 40, a third drive assembly 60, and a detection assembly 70. A support plate 101 is fixedly mounted on the upper part of the base frame 10. The first clamping assembly 30 is slidably disposed on one side of the support plate 10 for clamping one end of the camshaft rod. The first drive assembly 20 is mounted on the side wall of the support plate 101 for driving the first clamping assembly 30 to move up and down. The second clamping assembly 40 is slidably disposed inside the base frame 10 for clamping the other end of the camshaft rod. The third drive assembly 60 is disposed inside the base frame 10. When the first drive assembly 20 drives the clamping assembly 30 to move upward, the third drive assembly 60 drives the second clamping assembly 40 to move laterally along the inner side of the base frame 10 to provide support for the camshaft rod. The detection assembly 70 is disposed on the first clamping assembly 30 for detecting the vertical state of the camshaft rod.

[0045] When vertical machining of the camshaft rod is required, the camshaft rod to be machined can be placed flat above the base frame 10, so that one end of the camshaft rod acts on the first clamping assembly 30 and the other end acts on the second clamping assembly 40. Then, the first clamping assembly 30 clamps one end of the camshaft rod, and the first drive assembly 20 drives the first clamping assembly 30 to move upward along one side of the support plate 101, thereby pulling one end of the camshaft rod upward. The other end of the camshaft rod remains hanging on the second clamping assembly 40 under the action of gravity, so that the camshaft rod gradually rotates towards a vertical state. During the above process, the third drive assembly 60 drives the second clamping assembly 40 to move laterally along the inner side of the base frame 10 to provide support for the other end of the camshaft rod. When the detection assembly 70 detects that the camshaft rod has rotated to a vertical state, the first drive assembly 20 stops driving the clamping assembly 30 to move upward. The third drive assembly 60 stops driving the second clamping assembly 40 to move laterally. At this time, the second clamping assembly 40 clamps the other end of the camshaft rod, and then the machining mechanism (not shown in the figure) is used to process the vertical camshaft rod. After the camshaft rod is processed, the clamping state of the second clamping assembly 40 on the other end of the camshaft rod is released. Then the second drive assembly 20 drives the first clamping assembly 30 to move downward, thereby lowering one end of the camshaft rod. At the same time, the third drive assembly 60 drives the second clamping assembly 40 to move laterally in the opposite direction along the inner side of the bottom frame 10, thereby causing the other end of the camshaft rod to move adaptively, so that the vertical camshaft rod is gradually flattened. When the camshaft rod is flattened again above the bottom frame 10, the clamping state of the first clamping assembly 30 on one end of the camshaft rod is released, and then the processed camshaft rod is taken away from the top of the bottom frame 10.

[0046] Please see Figure 1 as well as Figure 5In one embodiment, vertically distributed guide rails 102 are fixedly disposed on the side wall of the support plate 101. The first drive assembly 20 includes a motor 201 and a first lead screw 202. The motor 201 is fixedly disposed on the inner top wall of the support plate 101. The first lead screw 202 is installed at the output end of the motor 201 and is vertically distributed. The first clamping assembly 30 includes a slider 301, a first threaded sleeve 302, a first rotating shaft 303, a cover plate 304, and a base 305. The cover plate 304 is hinged to the upper part of the base 305. A first arc-shaped opening 3041 is provided on one side of the cover plate 304. The base 305 has a second arc-shaped opening 3051 on one side that matches the first arc-shaped opening 3041. The cover plate 304 is provided with a first screw 306. The side wall of the base 305 is provided with a screw hole that matches the first screw 306. One end of the first rotating shaft 303 is rotatably connected to the side wall of the base 305, and the other end is fixedly connected to the first threaded sleeve 302. The slider 301 is fixedly disposed on the side wall of the first threaded sleeve 302. The slider 301 is slidably engaged with the guide rail 102. The first threaded sleeve 302 is sleeved on the outside of the first lead screw 202 and is threadedly engaged with the first lead screw 202.

[0047] Initially, the cover plate 304 is in an open state on the upper part of the base 305. When vertical machining of the camshaft rod is required, the camshaft rod to be machined can be placed flat on the bottom frame 10, so that one end of the camshaft rod extends into the second arc-shaped opening 3051. Then, the cover plate 304 is rotated so that the cover plate 304 closes on the upper part of the base 305. Then, the first screw 306 is turned, and the first screw 306 is screwed into the screw hole, thereby locking the cover plate 304 on the upper part of the base 305. At this time, one end of the camshaft rod is clamped between the first arc-shaped opening 3041 and the second arc-shaped opening. Inside 3051, the motor 201 is started. The motor 201 drives the first lead screw 202 to rotate. When the first lead screw 202 rotates, it drives the first threaded sleeve 302 to move upward along the outside of the first lead screw 202 through the threaded engagement with the first threaded sleeve 302. The first threaded sleeve 302 drives the base 305 and the cover plate 304 to move upward through the first rotating shaft 303, thereby pulling one end of the camshaft rod to move upward. During this process, the camshaft rod drives the base 305 and the cover plate 304 to rotate adaptively relative to the first rotating shaft 303 under the action of gravity.

[0048] Please see Figure 1 as well as Figure 7In one embodiment, the second clamping assembly 40 includes a clamping box 401, a handle 403, a second screw 404, and a clamping plate 405. The clamping box 401 is open at the top, and a placement groove 402 adapted to the camshaft rod is formed on the upper side wall of the clamping box 401. The second screw 404 passes through the side wall of the clamping box 401 and is threadedly engaged with the clamping box 401. The handle 403 is located at the end of the second screw 404 located outside the clamping box 401, and the clamping plate 405 is fixedly located at the end of the second screw 404 located inside the clamping box 401.

[0049] After one end of the camshaft rod is placed into the second arc-shaped opening 3051 on the base 305, the camshaft rod can be adjusted so that the other end of the camshaft rod is embedded in the placement slot 402. When the motor 201 drives the first lead screw 202 to rotate, thereby causing the base 305, cover plate 304, and one end of the camshaft rod to move upward, the one end of the camshaft rod drives the base 305 and cover plate 304 to rotate relative to the first rotating shaft 303. The other end of the camshaft rod gradually approaches the support plate 101. At this time, the third drive assembly 60 drives the clamping box 401 to move laterally along the inner side of the bottom frame 10 to provide support for the other end of the camshaft rod, so as to ensure that the camshaft rod can rotate smoothly. In the vertical position, when the detection component 70 detects that the camshaft rod has rotated to the vertical position, the motor 201 stops driving the first lead screw 202 to rotate. At this time, the other end of the camshaft rod rotates into the inside of the clamping box 401. The operator can turn the handle 403, which in turn drives the second screw 404 to rotate. Through the threaded engagement between the second screw 404 and the clamping box 401, the second screw 404 moves into the clamping box 401, which in turn drives the clamping plate 405 to move synchronously. When the clamping plate 405 moves, it acts on the side wall of the camshaft rod, thereby clamping the camshaft rod and keeping it stably in a vertical position, so as to improve the subsequent processing quality of the camshaft rod.

[0050] Please see Figure 1 In one embodiment, a second drive assembly 50 is further provided below the clamping box 401. After the clamping plate 405 clamps the camshaft rod, the second drive assembly 50 is used to drive the clamping box 401 to rotate, thereby driving the camshaft rod to rotate, so that the processing mechanism can subsequently perform rotary processing on the camshaft rod.

[0051] Please see Figure 1 as well as Figure 7In one embodiment, the second drive assembly 50 includes a protective box 501 and a second rotating shaft 504. The protective box 501 is disposed below the clamping box 401. A drive motor (not shown in the figure) is disposed inside the protective box 501. One end of the second rotating shaft 504 is connected to the output end of the drive motor, and the other end extends to the outside of the protective box 501 and is fixedly connected to the bottom of the clamping box 401.

[0052] When the third drive assembly 60 drives the clamping box 401 to move laterally along the inner side of the bottom frame 10 to provide support for the other end of the camshaft rod, the clamping box 401 drives the protective box 501, the drive motor and the second rotating shaft 504 to move laterally synchronously. When the camshaft rod rotates to a vertical position and the clamping plate 405 clamps the camshaft rod, the drive motor can be started. The drive motor drives the clamping box 401 to rotate through the second rotating shaft 504, thereby driving the camshaft rod to rotate, so that the machining mechanism can perform rotary machining on the camshaft rod.

[0053] Please see Figure 3 as well as Figure 4 In one embodiment, a second threaded sleeve 503 is fixedly disposed on the side wall of the protective box 501. The third drive assembly 60 includes a first bevel gear 601, a second bevel gear 602, and a second lead screw 603. The first bevel gear 601 is fixedly disposed at the end of the first lead screw 202 away from the motor 201. The second lead screw 603 is rotatably mounted inside the bottom frame 10. The second bevel gear 602 is fixedly disposed outside the second lead screw 603 and meshes with the first bevel gear 601. The second threaded sleeve 503 is sleeved on the outside of the second lead screw 603 and threadedly engaged with the second lead screw 603.

[0054] When the motor 201 drives the first lead screw 202 to rotate, and then pulls one end of the camshaft rod upward through the base 305 and the cover plate 304, the first lead screw 202 also drives the first bevel gear 601 to rotate. Through the meshing of the first bevel gear 601 and the second bevel gear 602, the second lead screw 603 is driven to rotate. When the second lead screw 603 rotates, through the threaded engagement with the second threaded sleeve 503, the protective box 501 is driven to move laterally along the inner side of the bottom frame 10. The protective box 501 drives the clamping box 401 to move laterally in sync, so as to provide support for the other end of the camshaft rod.

[0055] Please see Figure 1 as well as Figure 3 In one embodiment, a guide rod 103 is also fixedly installed inside the bottom frame 10, and a sliding sleeve 502 is also fixedly installed on the side wall of the protective box 501. The sliding sleeve 502 is slidably sleeved on the outside of the guide rod 103, so that when the second lead screw 603 rotates, it can smoothly drive the protective box 501 and the clamping box 401 to move laterally along the inner side of the bottom frame 10.

[0056] When the drive motor rotates the clamping box 401, to prevent one end of the camshaft rod from being clamped inside the first arc-shaped opening 3041 and the second arc-shaped opening 3051, thus affecting the smooth rotation of the camshaft rod, please refer to... Figure 5 as well as Figure 6 In one embodiment, a plurality of supports 308 are fixedly provided on the inner walls of the first arc-shaped opening 3041 and the second arc-shaped opening 3051. A set of rollers 307 are rotatably provided on one side of each set of supports 308. The plurality of rollers 307 are distributed along the axial direction of the first arc-shaped opening 3041 and the second arc-shaped opening 3051.

[0057] When the first screw 306 is screwed into the screw hole and locks the cover plate 304 onto the upper part of the base 305, several rollers 307 act evenly on the outer wall of the camshaft rod to clamp one end of the camshaft rod, preventing the camshaft rod from disengaging from the first arc-shaped opening 3041 and the second arc-shaped opening 3051. When the drive motor drives the clamping box 401 to rotate through the second rotating shaft 504, the clamping box 401 can drive the camshaft rod to rotate. When the camshaft rod rotates, it uses friction to drive several rollers 307 to rotate relative to the corresponding support 308, thereby ensuring that the camshaft rod rotates smoothly and stably for rotary processing.

[0058] Please see Figure 6 In one embodiment, a slot 309 is provided on the side wall of the base 305. The detection component 70 includes a first conductive rod 701, a rotating wheel 702, a support shaft 703, an indicator light 704, a power supply 705, a second conductive rod 706, and a contact block 707. The rotating wheel 702 is disposed inside the slot 309. One end of the support shaft 703 is rotatably connected to the inner wall of the slot 309, and the other end is fixedly connected to the side wall of the rotating wheel 702 at an eccentric position. The contact block 707 is fixedly disposed on the circumferential side wall of the rotating wheel 702. The power supply 705 is fixedly disposed on the outer wall of the base 305. One end of the first conductive rod 701 is connected to the negative terminal of the power supply 705, and the other end is connected in series with the indicator light and then distributed opposite to the second conductive rod 706. The end of the second conductive rod 706 away from the first conductive rod 701 is connected to the positive terminal of the power supply 705.

[0059] Initially, the rotating wheel 702, under its own weight, causes the contact block 707 to hang naturally inside the slot 309. At this time, the contact block 707 is separated from the first conductive rod 701 and the second conductive rod 706, and the indicator light 704 is off. As the motor 201 drives the first lead screw 202 to rotate, it causes one end of the camshaft rod to gradually move upward. The camshaft rod causes the base 305 to rotate adaptively relative to the first rotating shaft 303. Under its own weight, the rotating wheel 702 causes the support shaft 703 to rotate adaptively relative to the inner wall of the slot 309, thereby causing the contact block 707 to gradually approach the first conductive rod 706. When the camshaft rod rotates to the vertical position, the contact block 707 contacts the first conductive rod 701 and the second conductive rod 706. At this time, the power supply 705 supplies power to the indicator light 704 through the second conductive rod 706, the contact block 707 and the first conductive rod 701. The indicator light 704 lights up. The operator can conclude that the camshaft rod has rotated to the vertical position by using the lighting signal of the indicator light 704. Then, the motor 201 is turned off to keep the camshaft rod in the vertical position. Then, the drive motor is started, which drives the clamping box 401 and the camshaft rod to rotate, so as to realize the rotational processing of the camshaft rod.

[0060] In this embodiment of the invention, when vertical machining of a camshaft rod is required, the camshaft rod to be machined can be placed flat above the base frame 10, so that one end of the camshaft rod acts on the first clamping assembly 30 and the other end acts on the second clamping assembly 40. The first clamping assembly 30 then clamps one end of the camshaft rod, and the first driving assembly 20 drives the first clamping assembly 30 to move upward along one side of the support plate 101, thereby pulling one end of the camshaft rod upward. The other end of the camshaft rod, under the action of gravity, remains suspended on the second clamping assembly 40, causing the camshaft rod to gradually rotate towards a vertical state. During this process, the third driving assembly 60 drives the second clamping assembly 40 to move laterally along the inner side of the base frame 10 to provide continuous support for the other end of the camshaft rod. When the detection assembly 70 detects that the camshaft rod has rotated to a vertical state, the first driving assembly 20 stops driving the clamping assembly 30 upward, and the third driving assembly 60 stops driving the second clamping assembly 40 laterally. At this time, the second clamping assembly 40 then clamps the other end of the camshaft rod. The camshaft rod is clamped and then machined using a machining mechanism (not shown in the figure) in a vertical position. After the camshaft rod is machined, the clamping state of the second clamping component 40 on the other end of the camshaft rod is released. Then, the second drive component 20 drives the first clamping component 30 to move downward, thereby lowering one end of the camshaft rod. At the same time, the third drive component 60 drives the second clamping component 40 to move laterally in the opposite direction along the inner side of the bottom frame 10, thereby causing the other end of the camshaft rod to move adaptively, so that the vertical camshaft rod is gradually flattened. After the camshaft rod is flattened again above the bottom frame 10, the clamping state of the first clamping component 30 on one end of the camshaft rod is released, and then the machined camshaft rod can be removed from above the bottom frame 10. Compared with the prior art, when machining the camshaft rod vertically, there is no need to use hoisting machinery, and the camshaft rod can be automatically erected and flattened, thereby improving the machining efficiency of the camshaft rod. In addition, the vertical state of the camshaft rod can be detected during the erection process, thereby improving the machining quality.

[0061] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A vertical machining fixture for a camshaft, characterized in that, It includes a base frame, a first drive assembly, a first clamping assembly, a second clamping assembly, a third drive assembly, and a detection assembly. A support plate is fixedly installed on the upper part of the bottom frame. The first clamping assembly is slidably disposed on one side of the bracket plate and is used to clamp one end of the camshaft rod. The first drive assembly is mounted on the side wall of the support plate and is used to drive the first clamping assembly to move up and down. The second clamping assembly is slidably disposed inside the bottom frame for clamping the other end of the camshaft rod. The third drive assembly is disposed inside the bottom frame. When the first drive assembly moves the clamping assembly upward, the third drive assembly drives the second clamping assembly to move laterally along the inner side of the bottom frame to provide support for the camshaft rod. The detection component is mounted on the first clamping component and is used to detect the vertical state of the camshaft rod. The first clamping assembly includes a base, The base has a slot on its side wall. The detection assembly includes a first conductive rod, a rotating wheel, a support shaft, an indicator light, a power supply, a second conductive rod, and a contact block. The rotating wheel is disposed inside the slot. One end of the support shaft is rotatably connected to the inner wall of the slot, and the other end is fixedly connected to the side wall of the rotating wheel at an eccentric position. The grounding block is fixedly disposed on the circumferential side wall of the rotating wheel. The power supply is fixedly disposed on the outer wall of the base. One end of the first conductive rod is connected to the negative terminal of the power supply, and the other end is connected in series with the indicator light and then distributed opposite to the second conductive rod. The end of the second conductive rod away from the first conductive rod is connected to the positive terminal of the power supply. The first drive assembly includes a motor and a first lead screw. The motor is fixedly mounted on the inner top wall of the support plate, and the first lead screw is mounted on the output end of the motor and is vertically distributed. The first clamping assembly further includes a first threaded sleeve, a first rotating shaft, and a cover plate. The cover plate is hinged to the upper part of the base. A first arc-shaped opening is formed on one side of the cover plate, and a second arc-shaped opening, which mates with the first arc-shaped opening, is formed on one side of the base. A first screw is provided on the cover plate, and a threaded hole, adapted to the first screw, is provided on the side wall of the base. One end of the first rotating shaft is rotatably connected to the side wall of the base, and the other end is fixedly connected to the first threaded sleeve. The first threaded sleeve is fitted around the first lead screw and threadedly engages with it. The second clamping assembly includes a clamping box, a handle, a second screw, and a clamping plate. The clamping box has an open top, and a slot adapted to the camshaft rod is formed on the upper side wall of the clamping box. The second screw passes through the side wall of the clamping box and is threaded into the clamping box. The handle is located at the end of the second screw located outside the clamping box, and the clamping plate is fixedly located at the end of the second screw located inside the clamping box. A second drive assembly is also provided below the clamping box. After the clamping plate clamps the camshaft rod, the second drive assembly is used to drive the clamping box to rotate, thereby driving the camshaft rod to rotate.

2. The vertical machining fixture for a camshaft according to claim 1, characterized in that, Vertically distributed guide rails are fixedly installed on the side wall of the support plate. The first clamping assembly further includes a slider, which is fixedly disposed on the side wall of the first threaded sleeve and slides in cooperation with the guide rail.

3. The vertical machining fixture for a camshaft according to claim 1, characterized in that, The second drive assembly includes a protective housing and a second rotating shaft. The protective box is located below the clamping box. A drive motor is installed inside the protective box. One end of the second rotating shaft is connected to the output end of the drive motor, and the other end extends to the outside of the protective box and is fixedly connected to the bottom of the clamping box.

4. The vertical machining fixture for a camshaft according to claim 3, characterized in that, A second threaded sleeve is fixedly installed on the side wall of the protective box. The third drive assembly includes a first bevel gear, a second bevel gear, and a second lead screw. The first bevel gear is fixedly mounted at the end of the first lead screw away from the motor. The second lead screw is rotatably mounted inside the bottom frame. The second bevel gear is fixedly mounted outside the second lead screw and meshes with the first bevel gear. The second threaded sleeve is sleeved outside the second lead screw and threadedly engages with the second lead screw.

5. The vertical machining fixture for a camshaft according to claim 4, characterized in that, A guide rod is also fixedly installed inside the bottom frame, and a sliding sleeve is also fixedly installed on the side wall of the protective box, with the sliding sleeve slidably fitted onto the outside of the guide rod.

6. The vertical machining fixture for a camshaft according to claim 1, characterized in that, Several supports are fixedly provided on the inner walls of the first arc-shaped opening and the second arc-shaped opening. A set of rollers is rotatably provided on one side of each set of supports. The rollers are distributed axially along the first arc-shaped opening and the second arc-shaped opening.

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