Long bar processing machine tool

Abstract

The invention relates to the field of long rod machining equipment, and discloses a long rod machining machine tool which comprises a rack, a chuck, a driving mechanism, a grinding and cutting mechanism and a limiting assembly. A processing station is arranged on the rack; the grinding and cutting mechanism is arranged on the processing station of the rack and is used for grinding and cutting off the long rod; the chuck is arranged on the rack in a sliding manner, is arranged along the first direction with the processing station, and is used for clamping or loosening the long rod; the driving mechanism is arranged on the rack, is in transmission connection with the chuck and is used for driving the chuck to slide back and forth in the first direction; the limiting assembly is arranged on the rack and comprises a material pressing channel and a limiting hole which are communicated, the material pressing channel is located between the machining station and the chuck and used for allowing the long rod to penetrate through, and the limiting hole is located in the side, away from the material pressing channel, of the machining station and used for allowing one end of the long rod to be inserted. By means of the long rod machining machine tool, the problems that in the machining process of a long rod, repeated clamping is needed, and the roundness and circle run-out are difficult to guarantee can be solved.

Description

Technical Field

[0001] The invention relates to the field of long rod processing equipment, and in particular to a long rod processing machine tool. Background Art

[0002] In the field of traditional long rod processing, with the growing demand for high-precision and high-efficiency processing in the manufacturing industry, traditional processing methods are facing many challenges. At present, the processing process of long rods mainly involves two processes: cutting and grinding. This process often relies on two independent devices-cutting machines and grinders to complete them respectively. Specifically, the entire long rod must first be fed into the cutting machine and divided into several short rod segments of equal length by mechanical cutting. Subsequently, these short rod segments must be transferred to the grinder one by one, and go through two stages of rough grinding and fine grinding to achieve the required dimensional accuracy and surface finish. However, this processing mode has the following significant disadvantages:

[0003] The two processes of cutting and grinding long rods require two devices to operate independently, which makes it difficult to process long rods continuously. The workpiece needs to be re-clamped every time the equipment is changed or the processing stage is completed, which not only increases the complexity of the operation, but also introduces new positioning errors due to repeated clamping, which directly affects the processing accuracy of the long rods. This error is particularly critical in scenarios with high precision requirements. In addition, during the processing of long rods, due to their large lateral span, they are prone to slight runout, making it difficult to ensure the roundness and round runout of the workpiece, which also affects the processing accuracy of the long rods. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] The present invention provides a long rod processing machine tool for solving the above technical problems.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a long rod processing machine tool, comprising:

[0008] A machine frame, on which processing stations are arranged;

[0009] The grinding and cutting mechanism is arranged on the processing station of the frame and is used for grinding and cutting long bars;

[0010] A chuck is slidably mounted on the frame and arranged with the processing station along a first direction, and the chuck is used to clamp or release the long rod;

[0011] A driving mechanism is arranged on the frame and is in driving connection with the chuck, and the driving mechanism is used to drive the chuck to slide back and forth along a first direction;

[0012] The limiting assembly is arranged on the frame and includes a connected pressing channel and a limiting hole. The pressing channel is located between the processing station and the chuck and is used for allowing the long rod to pass through. The limiting hole is located on the side of the processing station away from the pressing channel and is used for inserting one end of the long rod.

[0013] Further, the aforementioned chuck includes:

[0014] A slide seat is slidably arranged on the frame along a first direction;

[0015] The positioning fixture and the clamping tube are arranged on the slide seat along the first direction, and the clamping tube is located between the positioning fixture and the pressing channel. The positioning fixture is used to clamp or release the long rod and is provided with a clamping channel; the clamping tube includes a guide tube and at least two elastic clamping arms. The guide tube is extended along the first direction, and the feed end of the guide tube is connected to the clamping channel. The guide tube is used for the long rod to pass through. At least two elastic clamping arms are connected to the discharge end of the guide tube at annular intervals around the axis of the guide tube, and enclose a positioning hole that is interference fit with the long rod. The positioning hole is coaxially arranged with the clamping channel, and the elastic clamping arm can be deformed.

[0016] It is further arranged that the aforementioned clamping tube also includes an outer tube, the guide tube is fixedly arranged in the outer tube, the elastic clamping arm is arranged in the outer tube, and a deformation space is formed between the elastic clamping arm and the inner peripheral wall of the outer tube.

[0017] Further, the aforementioned positioning fixture includes:

[0018] A chuck, wherein a middle portion of the chuck is provided with a clearance opening for a long rod to pass through;

[0019] At least two clamp arms and a clamp arm driving assembly, at least two clamp arms are connected to the chuck at uniform intervals and rotate around the clearance opening, one end of each clamp arm is transmission-connected to the clamp arm driving assembly, and a clamping channel coaxially connected to the clearance opening is formed between the other ends, and the clamp arm driving assembly is arranged on the chuck, and is used to drive the other end of each clamp arm to rotate away from or toward the axis of the clearance opening to expand or reduce the clamping channel.

[0020] Further, the aforementioned clamp arm driving assembly includes:

[0021] A ring block, wherein the ring block is sleeved on the chuck, and one end of each clamp arm is connected to the ring block through a rotating shaft and is connected to the chuck through a rotating shaft;

[0022] A telescopic driving rod, one end of which is fixedly connected to the ring block, and a telescopic rod of the telescopic driving rod is fixedly connected to the side of the chuck, for driving the chuck to rotate relative to the ring block.

[0023] Further, the aforementioned limit assembly includes:

[0024] A limit block is slidably arranged on the frame along a first direction and is provided with a limit hole;

[0025] The pressing block is detachably mounted on the frame and is provided with a pressing trough;

[0026] A pressing wheel and a pressing wheel driving component, wherein the pressing wheel is rotatably arranged on the output end of the pressing wheel driving component, a pressing channel is formed between the pressing wheel and the pressing groove of the pressing block, and the pressing wheel driving component is arranged on the frame, and is used to drive the pressing wheel to move toward the notch of the pressing groove to press the long rod tightly, and make the long rod be located on the same axis in the pressing channel and at the chuck.

[0027] It is further arranged that the aforementioned pressing block can be slidably arranged on the frame in the vertical direction, the pressing groove is V-shaped, and a fastener is arranged between the pressing block and the frame, and the fastener is used to fix the pressing block and the frame.

[0028] Further, the long rod processing machine tool also includes:

[0029] A locking piece is arranged on the limiting block and is used to lock the thin and soft long rod in the limiting hole;

[0030] The tension driving member is arranged on the frame and is drivingly connected with the limit block. The tension driving member is used for driving the limit block to slide along the first direction.

[0031] It is further configured that the long rod processing machine also includes a moving-out driving member, which is slidably arranged on the frame along the first direction and connected to the output end of the tensioning driving member. The output end of the moving-out driving member is connected to the limit block, and is used to drive the limit block to move in a direction perpendicular to the first direction.

[0032] It is further configured that the long rod processing machine also includes a detection member and a detection drive member. The detection drive member is arranged on the frame and is transmission-connected to the detection member. The detection drive member is used to drive the detection member to move in a direction perpendicular to the first direction. The detection member is used to detect the degree of radial circular runout during the rotation of the long rod.

[0033] (III) Beneficial effects

[0034] Compared with the prior art, the long rod processing machine tool provided by the present invention has the following beneficial effects:

[0035] When the long rod processing machine provided by the present invention is used, first, the chuck clamps the long rod at the original position; then, the driving mechanism drives the chuck and the long rod to slide together along the first direction toward the processing station, so that one end of the long rod passes through the pressing channel and moves into the processing station, and then is inserted into the limiting hole, and the limiting assembly makes the long rod be located on the same axis at the processing station and at the chuck; then the chuck releases the long rod, and the driving mechanism drives the chuck to slide along the first direction away from the processing station and return to its original position; the chuck clamps the long rod at the original position again, and the grinding and cutting mechanism grinds the long rod portion located at the processing station, and then cuts off the ground long rod portion; after the cut long rod segment moves out of the processing station, the driving mechanism drives one end of the long rod to move into the processing station again, and the above steps are repeated, and this process is repeated to continuously process the long rod. During the above-mentioned grinding and cutting process, the limit assembly can limit the two ends of the long rod part at the processing station in the pressure channel and the limit hole respectively through the pressure channel and the limit hole on both sides of the processing station, thereby limiting the radial runout of the long rod at the processing station, and the chuck can also limit the radial runout of the long rod while clamping the long rod, thereby limiting the radial runout of the long rod at the processing station. It can be seen that the long rod processing machine tool can clamp the long rod once through the chuck, and then clamp and transport the long rod to the grinding, cutting and other processes for continuous processing, solving the problem of precision loss caused by repeated clamping; and the cooperation of the limit assembly and the chuck can effectively limit the radial runout of the long rod at the processing station, ensuring the roundness and circular runout during the long rod processing process, thereby greatly improving the processing accuracy of the long rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A three-dimensional diagram of a long rod processing machine tool in an embodiment;

[0037] Figure 2 is a cross-sectional view of a long rod processing machine tool in an embodiment;

[0038] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0039] Figure 4 A three-dimensional diagram of a positioning fixture in an embodiment;

[0040] Figure 5 Schematic diagram of the structure of the pressing block, the pressing wheel and the pressing wheel driving member in the embodiment;

[0041] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0042] Figure 7 A radial cross-sectional view of the limit block and the locking member in the embodiment;

[0043] Figure 8 A top view of a long rod processing machine tool in an embodiment;

[0044] Fig. 9 for Figure 8 Enlarged schematic diagram of point C in the middle.

[0045] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.

[0046] Figure Number:

[0047] 1. Frame; 11. Processing station;

[0048] 2. Grinding and cutting mechanism; 21. Rough grinding wheel; 22. Fine grinding wheel; 23. Grinding drive;

[0049] 3. chuck; 31. slide seat; 32. positioning fixture; 321. clamping channel; 322. chuck; 3221. clearance port; 323. clamping arm; 3231. roller; 324. clamping arm driving assembly; 3241. telescopic driving rod; 3242. ring block; 33. clamping tube; 331. guide tube; 332. elastic clamping arm; 333. outer tube; 334. deformation space; 335. positioning hole;

[0050] 4. Limiting assembly; 41. Pressing channel; 42. Limiting hole; 43. Limiting block; 44. Pressing block; 441. Pressing groove; 442. Fastener; 443. Slide; 45. Pressing wheel; 46. Pressing wheel driving member; 461. Swing arm;

[0051] 5. Driving mechanism; 6. Long rod; 7. Rotating mechanism;

[0052] 81. Locking member; 82. Tightening the driving member; 83. Removing the driving member;

[0053] 91. Detection component; 92. Detection drive component. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] The present invention provides a long rod processing machine tool, which is used to solve the problem that the long rod 6 needs to be repeatedly clamped during the processing, and it is difficult to ensure the roundness and circular runout.

[0056] See also Figure 1 and Figure 2 As shown, Figure 1 It is a three-dimensional diagram of the long rod processing machine tool in the embodiment, Figure 2 1 is a cross-sectional view of a long rod processing machine tool in an embodiment, which includes a frame 1, a grinding and cutting mechanism 2, a chuck 3, a limit assembly 4 and a driving mechanism 5.

[0057] A processing station 11 is provided on the frame 1 .

[0058] The grinding and cutting mechanism 2 is installed on a processing station 11 of the frame 1 , and the processing station 11 is used for grinding and cutting the long rod 6 .

[0059] The chuck 3 is slidably connected to the frame 1 , and the chuck 3 and the processing station 11 are arranged along a first direction. The chuck 3 is used to clamp or release the long rod 6 .

[0060] The driving mechanism 5 is installed on the frame 1 and is in driving connection with the chuck 3 . The driving mechanism 5 is used for driving the chuck 3 to slide back and forth along a first direction.

[0061] The limiting assembly 4 is mounted on the frame 1, and the limiting assembly 4 includes: a pressing channel 41 and a limiting hole 42 that are interconnected. The pressing channel 41 is located between the processing station 11 and the chuck 3, and is used for the long rod 6 to pass through. The limiting hole 42 is located on the side of the processing station 11 away from the pressing channel 41, and is used for inserting one end of the long rod 6. In this way, the pressing channel 41 and the limiting hole 42 are combined to limit the radial position of the long rod 6, so that the long rod 6 is located on the same axis at the processing station 11 and the chuck 3. It should be noted that the pressing channel 41 and the limiting hole 42 can be coaxially arranged.

[0062] When the long rod processing machine tool of the above technical scheme is used, first, the chuck 3 clamps the long rod 6 at the original position; then, the driving mechanism 5 drives the chuck 3 and the long rod 6 to slide toward the processing station 11 together, so that one end of the long rod 6 passes through the pressing channel 41 and moves into the processing station 11, and then inserts it into the limiting hole 42, and the limiting component 4 makes the long rod 6 at the processing station 11 and at the chuck 3 on the same axis; then the chuck 3 releases the long rod 6, and the driving mechanism 5 drives the chuck 3 to slide in the direction away from the processing station 11 and returns to its original position; the chuck 3 clamps the long rod 6 at the original position again, and the grinding and cutting mechanism 2 grinds the part of the long rod 6 located at the processing station 11, and then cuts off the ground part of the long rod 6; after the cut long rod 6 section moves out of the processing station 11, the driving mechanism 5 drives one end of the long rod 6 to move into the processing station 11 again, and repeats the above steps, and so on, to continuously process the long rod 6.

[0063] During the above-mentioned grinding and cutting process, the limiting assembly 4 can limit the two ends of the long rod 6 at the processing station 11 in the pressing channel 41 and the limiting hole 42 respectively through the pressing channel 41 and the limiting hole 42 on both sides of the processing station 11, thereby limiting the radial runout of the long rod 6 at the processing station 11; and the chuck 3 can also limit the radial runout of the long rod 6 while clamping the long rod 6, thereby limiting the radial runout of the long rod 6 at the processing station 11. It can be seen that the long rod processing machine tool can clamp the long rod 6 once through the chuck 3, and can clamp and transport the long rod 6 to the grinding, cutting and other processes for continuous processing, thereby solving the problem of precision loss caused by repeated clamping; and the cooperation between the limiting assembly 4 and the chuck 3 can effectively limit the radial runout of the long rod 6 at the processing station 11, ensuring the roundness and circular runout of the long rod 6 during the processing process, thereby greatly improving the processing accuracy of the long rod 6.

[0064] The driving mechanism 5 can be a linear driving mechanism such as a screw nut linear module, an electric cylinder or a hydraulic cylinder, and the chuck 3 is connected to the output end of the driving mechanism 5 by screw connection or welding.

[0065] See also Figure 1 and Figure 2 As shown, the long rod processing machine tool also includes a rotating mechanism 7, which can be installed on the output end of the driving mechanism 5. The output end of the rotating mechanism 7 is connected to the chuck 3. In this way, when grinding the long rod 6, the rotating mechanism 7 drives the chuck 3 to rotate to drive the long rod 6 to rotate. At the same time, the grinding and cutting mechanism 2 is started, and the long rod 6 at the processing station 11 can be ground.

[0066] See also Figure 1 , Figure 2 and Figure 3 As shown, Figure 3 for Figure 2 In the enlarged schematic diagram at A in the middle, in one embodiment of the chuck 3, the chuck 3 includes a slide 31, a positioning fixture 32 and a clamping tube 33. The slide 31 is slidably connected to the slide rail or guide rod of the frame 1 along the first direction. The positioning fixture 32 and the clamping tube 33 are arranged on the slide 31 along the first direction, and the clamping tube 33 is located between the positioning fixture 32 and the pressing channel 41. The positioning fixture 32 is used to clamp or release the long rod 6, and the positioning fixture 32 has a clamping channel 321. The clamping tube 33 includes a guide tube 331 and at least two elastic clamping arms 332. The guide tube 331 extends along the first direction, and the feed end of the guide tube 331 is connected to the clamping channel 321 in the positioning fixture 32. The guide tube 331 is used to allow the long rod 6 to pass through and limit the conveying path of the long rod 6. At least two elastic clamp arms 332 are connected to the discharge end of the guide tube 331 in an annular manner around the axis of the guide tube 331, and enclose a positioning hole 335 that is interference-fitted with the long rod 6. The positioning hole 335 is coaxially distributed with the clamping channel 321, and the elastic clamp arms 332 can be deformed.

[0067] It can be seen that the clamping tube 33 clamps the long rod 6 through the positioning hole 335. Since the elastic clamping arm 332 can be deformed, it can effectively avoid the clamping tube 33 from damaging the long rod 6. However, this may cause the long rod 6 to radially jump in the guide tube 331, thereby increasing the radial jump of the end of the long rod 6. The positioning fixture 32 cooperates with the clamping tube 33 to clamp the long rod 6, which can effectively limit the radial jump of the long rod 6 in the guide tube 331. It can be seen that the long rod processing machine tool can clamp and transport the long rod 6 without damaging the long rod 6 through the clamping tube 33 and the positioning fixture 32, and can also limit the radial jump of the long rod 6, thereby improving the processing accuracy of the long rod 6 at the processing station 11. In this embodiment, there are three elastic clamping arms 332, and the three elastic clamping arms 332 are evenly spaced in a ring, so the clamping effect is more stable.

[0068] See also Figure 3 As shown, the clamp tube 33 may further include an outer tube 333, the guide tube 331 is fastened in the outer tube 333 by screws, the elastic clamp arm 332 is located in the outer tube 333, and a deformation space 334 is formed between the elastic clamp arm 332 and the inner peripheral wall of the outer tube 333. In this way, the outer tube 333 can limit the degree of outward deformation of the elastic clamp arm 332, thereby preventing the long rod 6 from a large radial runout; specifically, when the radial runout of the long rod 6 drives the elastic clamp arm 332 to deform outward until it abuts against the inner wall of the outer tube 333, the elastic clamp arm 332 cannot continue to deform outward, thereby limiting the radial runout of the long rod 6 at the positioning hole 335 to not exceed the inner diameter of the outer tube 333.

[0069] The output end of the above-mentioned rotating mechanism 7 can be connected only to the outer tube 333. Specifically, the rotating mechanism 7 can use a stepper motor, and the stepper motor is connected to the outer tube 333 through a gear set. In this way, the rotating mechanism 7 drives the outer tube 333 to rotate, which can drive the long rod 6 to rotate without driving the entire chuck 3 to rotate, thereby effectively reducing the energy consumption of the rotating mechanism 7 and saving space for movement.

[0070] See also Figure 2 and Figure 4 As shown, Figure 43D is a stereoscopic diagram of the positioning fixture in the embodiment. In one embodiment of the positioning fixture 32, the positioning fixture 32 includes: a chuck 322, at least two clamping arms 323 and a clamping arm driving assembly 324. The middle part of the chuck 322 has a clearance opening 3221 for the long rod 6 to pass through. At least two clamping arms 323 are evenly spaced and rotated around the clearance opening 3221 and connected to the chuck 322. One end of each clamping arm 323 is connected to the clamping arm driving assembly 324 in a transmission manner. The clamping channel 321 is formed between the other ends of each clamping arm 323. The clamping channel 321 is coaxially connected to the clearance opening 3221. The clamping arm driving assembly 324 is installed on the chuck 322 and is used to drive the other end of each clamping arm 323 to rotate in a direction away from or toward the clearance opening 3221 to expand or reduce the clamping channel 321. In this way, the clamping arm driving assembly 324 and the clamping arm 323 cooperate to adjust the size of the clamping channel 321 to clamp the long rod 6 of different diameters, and have a wide range of applications; and each clamping arm 323 rotates synchronously, and can automatically align while clamping the long rod 6, so that the long rod 6 and the positioning hole 335 are located on the same axis. In this embodiment, the number of the clamping arms 323 is three, and the three clamping arms 323 are distributed in an annular shape at equal intervals, so that the long rod 6 can be stably clamped.

[0071] See also Figure 4 As shown, in one embodiment of the clamp arm 323, the clamp arm driving assembly 324 includes: a telescopic driving rod 3241 and a ring block 3242, the ring block 3242 is sleeved on the chuck 322, and one end of each clamp arm 323 is connected to the ring block 3242 through the rotating shaft A1 and is connected to the chuck 322 through the rotating shaft A2. One end of the telescopic driving rod 3241 is fixedly connected to the ring block 3242, and the telescopic rod of the telescopic driving rod 3241 is fixedly connected to the side of the chuck 322. In this way, the telescopic rod of the telescopic driving rod 3241 is telescopic, which can drive the chuck 322 to rotate relative to the ring block 3242, and then drive each clamp arm 323 to swing synchronously through the rotating shaft A2, so as to clamp the long rod 6, and automatically center the long rod 6, to ensure that the long rod 6 in the clamping channel 321 is coaxially distributed with the positioning hole 335.

[0072] The telescopic driving rod 3241 may use a telescopic driving mechanism such as an electric telescopic rod or a hydraulic telescopic rod.

[0073] The other end of each clamping arm 323 can be rotatably connected to a roller 3231 via a rotating shaft, and a clamping channel 321 is formed between each roller 3231. In this way, the clamping arm 323 clamps the long rod 6 through the roller 3231, and when the long rod 6 rotates and grinds, it can drive the roller 3231 to rotate accordingly, effectively reducing the wear of the clamping arm 323 on the long rod 6, and preventing the long rod 6 from rotating and swinging in the clamping channel 321 due to the wear of the long rod 6, thereby increasing the radial runout of the long rod 6 at the processing station 11, affecting the processing accuracy of the long rod 6 at the processing station 11.

[0074] See also Figure 2 and Figure 5 As shown, Figure 5 Schematic diagram of the structure of the pressing block, the pressing wheel and the pressing wheel driving member in the embodiment. In one embodiment of the limiting assembly 4, the limiting assembly 4 includes a limiting block 43, a pressing block 44, a pressing wheel 45 and a pressing wheel driving member 46. The limiting block 43 is slidably connected to the slide rail or guide rod of the frame 1 along the first direction, and the limiting block 43 has a limiting hole 42. The pressing block 44 is detachably connected to the frame 1 by screw connection or clamping, and the pressing block 44 has a pressing groove 441. The pressing wheel 45 is rotatably connected to the output end of the pressing wheel driving member 46 through a bearing, and a pressing channel 41 is formed between the pressing wheel 45 and the pressing groove 441 of the pressing block 44. The pressing wheel driving member 46 is installed on the frame 1, and is used to drive the pressing wheel 45 to move toward the notch of the pressing groove 441 to press the long rod 6, and make the long rod 6 in the pressing channel 41 and at the chuck 3 on the same axis. For example, the long rod 6 can be coaxially distributed with the positioning hole 335 in the chuck 3 in the pressing channel 41. In this way, when the long rod 6 passes through the pressing channel 41, part of the long rod 6 is located in the pressing groove 441, and the other part is located outside the pressing groove 441 and abuts against the pressing wheel 45. When the long rod 6 rotates and grinds, the pressing wheel 45 is driven to rotate accordingly, effectively reducing the wear of the pressing wheel 45 on the long rod 6, and avoiding excessive wear of the long rod 6 resulting in increased radial runout of the long rod 6 in the pressing channel 41; and different diameters of the long rod 6 can use the pressing block 44 with different sizes of the pressing groove 441 to ensure that the long rod 6 of different diameters can be located on the same axis in the pressing channel 41 and at the chuck 3.

[0075] The above-mentioned pressing wheel driving member 46 can use a telescopic driving mechanism such as a telescopic cylinder or an electric telescopic rod, which is rotatably connected to the frame 1, and the output end of the telescopic cylinder or the electric telescopic rod is rotatably connected to one end of the swing arm 461, and the other end of the swing arm 461 is rotatably connected to the frame 1, and the pressing wheel 45 is rotatably connected to the swing arm 461. In this way, the pressing wheel driving member 46 can be extended and retracted to drive the swing arm 461 and the pressing wheel 45 to swing downward together, so as to press the long rod 6 on the pressing groove 441. Or the above-mentioned pressing wheel driving member 46 can use a rotating driving mechanism such as a rotary cylinder or a rotary motor, which is screwed or welded to the frame 1, and the pressing wheel 45 is rotatably connected to the output end of the rotary cylinder or the rotary motor. In this way, the rotation of the pressing wheel driving member 46 can drive the pressing wheel 45 to swing downward, so as to press the long rod 6 on the pressing groove 441. The above-mentioned pressing wheel driving member 46 is not limited to the above-mentioned two embodiments, as long as it can drive the pressing wheel 45 to press down toward the notch of the pressing groove 441.

[0076] See also Figure 5 and Figure 6 As shown, Figure 6 for Figure 5In the enlarged schematic diagram at B in the middle, in one embodiment of the pressing block 44, the pressing block 44 is installed on the slide rail or slide groove 443 of the frame 1, and can slide vertically along the slide rail or slide groove 443 to adjust the height of the pressing groove 441, thereby adjusting the axial height of the long rod 6 in the pressing channel 41. The pressing groove 441 is V-shaped. And a fastener 442 is installed between the pressing block 44 and the frame 1, and the fastener 442 is used to fix the pressing block 44 and the frame 1. In this way, the V-shaped pressing groove 441 can be used to limit the long rods 6 of different diameters with a small diameter difference range. Therefore, when processing the long rods 6 of different diameters with a small diameter difference range, there is no need to replace the pressing block 44 again. It is only necessary to slide and adjust the upper and lower positions of the pressing block 44, so that the long rod 6 can be located on the same axis in the pressing channel 41 and at the chuck 3, and then the pressing block 44 and the frame 1 can be fixed with the fastener 442, which greatly saves production costs.

[0077] The fastener 442 can be screwed together to fix the pressing block 44 and the frame 1 using screws or other threaded parts.

[0078] The material of the pressing groove 441 of the pressing block 44 can be made of wear-resistant material such as hard alloy steel to form a pressing groove 441 with wear-resistant effect, which effectively prevents the pressing groove 441 from being worn by the long rod 6, thereby increasing the service life of the pressing block 44.

[0079] See also Figure 2 and Figure 7 As shown, Figure 7 : is a radial cross-sectional view of the limit block and the locking member in the embodiment. Based on the embodiment in which the limit assembly 4 includes the limit block 43, the pressure block 44, the pressure wheel 45 and the pressure wheel driver 46, the long rod processing machine tool also includes a locking member 81 and a tension driver 82. The locking member 81 is provided on the limit block 43 by screw connection or sliding connection, etc., and is used to lock the thin and soft long rod 6 in the limit hole 42. The tension driver 82 is installed on the frame 1, and the tension driver 82 is transmission-connected with the limit block 43, and is used to drive the limit block 43 to slide along the first direction. In this way, when processing a long rod 6 with a high hardness that is not easy to bend and deform, insert one end of the long rod 6 into the limiting hole 42 and press against the bottom wall of the limiting hole 42, so that the radial runout of the long rod 6 can be limited by the limiting hole 42 adapted to the long rod 6; and when processing a long rod 6 with a low hardness that is easy to bend and deform, one end of the thin and soft long rod 6 is locked in the limiting hole 42 by the locking piece 81, and then the limiting block 43 is driven to slide along the first direction away from the processing station 11 by tightening the driving piece 82, so that the long rod 6 can be straightened and the runout of the long rod 6 can be limited. Therefore, the long rod processing machine tool can be used to process long rods 6 of different hardness, effectively improving the scope of application.

[0080] The tensioning drive 82 may use a linear motor or an electric telescopic rod, and the output end of the tensioning drive 82 may be directly connected to the limit block 43 by welding or screwing, so that the tensioning drive 82 can accurately drive the movement stroke of the limit block 43.

[0081] The above-mentioned locking piece 81 can be threadedly connected to the threaded hole 431 of the limit block 43. In this way, the locking piece 81 can be manually screwed to lock the thin and soft long rod 6 tightly in the limit hole 42. The above-mentioned locking piece 81 can also be connected to the radial opening of the limit block 43 by sliding along a radial direction of the limit hole 42 at one end, and the other end is connected to the output end of the locking drive (not shown in the figure) by welding or screwing. The locking drive can use a driving mechanism such as an electric telescopic rod or a telescopic cylinder, which is fixedly installed on the limit block 43, and can replace manual operation to drive the locking piece 81 to slide toward the limit hole 42 to lock the thin and soft long rod 6 tightly in the limit hole 42.

[0082] See also Figure 2 As shown, based on the embodiment in which the long rod processing machine tool further includes a locking member 81 and a tensioning driving member 82, the long rod processing machine tool further includes a removal driving member 83, which is slidably mounted on the frame 1 along the first direction, and the removal driving member 83 is connected to the output end of the tensioning driving member 82, and the output end of the removal driving member 83 is connected to the limit block 43 by welding or screwing, so that the limit block 43 slides on the frame 1 through the removal driving member 83. The removal driving member 83 is used to drive the limit block 43 to move in a direction perpendicular to the first direction. In this way, the long rod processing machine fixes the limit block 43 and the long rod 6 through the locking piece 81, and then drives the limit block 43 to move in a direction perpendicular to the first direction back to the processing station 11 by removing the driving piece 83, so that the long rod 6 segment cut by grinding can be moved out of the processing station 11, so that the remaining long rod 6 can be moved into the processing station 11 to continue grinding and cutting, without manual removal, thereby further improving production efficiency; and after the long rod 6 segment is taken out of the limit hole 42, the driving piece 83 is removed to drive the limit block 43 to return to its original position, so that the driving mechanism 5 can drive one end of the remaining long rod 6 to be inserted into the limit hole 42 again.

[0083] The removal drive member 83 may be a telescopic drive mechanism such as a telescopic cylinder or an electric telescopic rod.

[0084] See also Figure 8 As shown, Figure 8: is a top view of the long rod processing machine tool in the embodiment, the long rod processing machine tool also includes a detection member 91 and a detection drive member 92, the detection drive member 92 is installed on the frame 1 by welding or screwing, the output end of the detection drive member 92 is connected to the detection member 91 by welding or screwing, and the detection drive member 92 is used to drive the detection member 91 to move in a direction perpendicular to the first direction. The detection member 91 is used to detect the radial circular runout degree of the long rod 6 during rotation. In this way, before the long rod processing machine tool processes the long rod 6 of different diameters each time, the standard long rod 6 (the standard long rod 6 is: a standard size rod body with the same diameter as the long rod 6 to be processed, which can be made of wear-resistant hard material) can be installed on the long rod processing machine tool instead of the long rod 6 to be processed; then, the standard long rod 6 is driven to rotate, and at the same time, the detection drive member 92 drives the detection member 91 to move toward the standard long rod 6 in a direction perpendicular to the first direction, so that the detection end of the detection member 91 contacts the outer wall of the standard long rod 6, and the radial circular runout of the standard long rod 6 can be detected; after each detection, the detection drive member 92 drives the detection member 91 to move away from the standard long rod 6 and return to its original position. According to the detected radial circular runout value of the standard long rod 6, the position of the limit assembly 4 can be adjusted until the radial circular runout value of the standard long rod 6 reaches the required range; after adjustment, the standard long rod 6 can be replaced with the long rod 6 to be processed, effectively preventing the long rod 6 to be processed from being damaged during the detection process. It can be seen that the long rod processing machine tool can replace manual labor to detect the radial circular runout of the rod material through the detection component 91 and the detection drive component 92, so as to adjust the position of the limit assembly 4 before processing the long rod 6, and ensure that the radial circular runout of the long rod 6 during the processing can reach the required range, thereby ensuring that the processing accuracy of the long rod 6 can meet the accuracy requirements.

[0085] The detection member 91 can use a micrometer to detect the radial runout of the cylinder. The detection drive member 92 can use a linear drive mechanism such as an electric telescopic rod or an electric cylinder, which is arranged near the processing station 11, so that the detection member 91 can detect the radial runout of the long rod 6 near the processing station 11. The closer the detection position of the detection member 91 is to the processing station 11, the more accurate the detection result is.

[0086] See also Figure 1 , Figure 8 and Fig. 9 As shown, Fig. 9 for Figure 8In the enlarged schematic diagram at C in the middle, in one embodiment of the grinding and cutting mechanism 2, the grinding and cutting mechanism 2 includes a rough grinding wheel 21, a fine grinding wheel 22, a grinding drive 23, a cutter (not shown in the figure) and a cutter drive (not shown in the figure), there are two grinding drives 23, the grinding drives 23 are mounted on the frame 1, the two grinding drives 23 are respectively connected to the rough grinding wheel 21 and the fine grinding wheel 22, and are respectively used to drive the rough grinding wheel 21 and the fine grinding wheel 22 to move toward the long rod 6 of the processing station 11 to rough and fine grind the long rod 6. The cutter drive is mounted on the frame 1, and the cutter drive is connected to the cutter to drive the cutter to move toward the processing station 11 to cut off the ground part of the long rod 6. In this way, during the grinding process, first, the two grinding drive members 23 drive the rough grinding wheel 21 and the fine grinding wheel 22 to move into the processing station 11 successively, contact with the long rod 6 at the processing station 11 and grind. During the grinding process, the driving mechanism 5 drives the long rod 6 to move and transport toward the processing station 11, and the rough-ground part of the long rod 6 can be transferred to the fine grinding wheel 22 for fine grinding, so that the rough grinding and fine grinding of the long rod 6 are performed at the same time, which effectively improves the grinding efficiency of the long rod 6; then, the two grinding drive members 23 drive the rough grinding wheel 21 and the fine grinding wheel 22 to move out of the processing station 11 successively, and the fine grinding wheel 22 always moves a period of time later than the rough grinding wheel 21, ensuring that the entire rough grinding position is finely ground before withdrawing from the processing station 11, and finally, the cutter drive member drives the cutter to cut off the long rod 6, automatically cuts off the ground part of the long rod 6, and then returns to its original position.

[0087] The grinding drive 23 may use a rotary stepping motor, and the output end of the grinding drive 23 is fixedly connected to the rough grinding wheel 21 or the fine grinding wheel 22 by integral connection or welding, so that the grinding drive 23 can drive the rough grinding wheel 21 or the fine grinding wheel 22 to rotate and move into or out of the processing station 11. Both the rough grinding wheel 21 and the fine grinding wheel 22 can use grinding wheels. The cutter drive may use a drive mechanism such as a telescopic cylinder, an electric telescopic rod or a hydraulic cylinder, and the output end of the cutter drive is fixedly connected to the cutter by integral connection or welding, so that the cutter drive can drive the cutter to move into or out of the processing station 11.

[0088] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A long rod processing machine tool, characterized in that: include: A frame, wherein a processing station is provided on the frame; A grinding and cutting mechanism, arranged on a processing station of the frame, for grinding and cutting long rods; A chuck is slidably disposed on the frame and arranged along a first direction with the processing station, and the chuck is used to clamp or release the long rod; A driving mechanism, disposed on the frame and drivingly connected to the chuck, the driving mechanism being used to drive the chuck to slide back and forth along the first direction; A limiting assembly is arranged on the frame and has a connected pressing channel and a limiting hole. The pressing channel is located between the processing station and the chuck and is used for the long rod to pass through. The limiting hole is located on the side of the processing station away from the pressing channel and is used for one end of the long rod to be inserted.

2. The long rod processing machine tool according to claim 1, characterized in that: The chuck comprises: A slide seat, slidably disposed on the frame along the first direction; A positioning fixture and a clamping tube are arranged on the slide seat along the first direction, and the clamping tube is located between the positioning fixture and the pressing channel. The positioning fixture is used to clamp or release the long rod and is provided with a clamping channel; the clamping tube includes a guide tube and at least two elastic clamping arms. The guide tube extends along the first direction, and the feed end of the guide tube is connected to the clamping channel. The guide tube is used for the long rod to pass through. At least two of the elastic clamping arms are connected to the discharge end of the guide tube at an annular interval around the axis of the guide tube, and enclose a positioning hole that is interference fit with the long rod. The positioning hole is coaxially arranged with the clamping channel, and the elastic clamping arms can be deformed.

3. The long rod processing machine tool according to claim 2, characterized in that: The clamping tube further comprises an outer tube, the guide tube is fixedly arranged in the outer tube, the elastic clamping arm is arranged in the outer tube, and a deformation space is formed between the elastic clamping arm and the inner peripheral wall of the outer tube.

4. The long rod processing machine tool according to claim 2, characterized in that: The positioning fixture comprises: A chuck, wherein the middle portion of the chuck is provided with a clearance opening for the long rod to pass through; At least two clamp arms and a clamp arm driving assembly, wherein the at least two clamp arms are connected to the chuck at uniform intervals and rotate around the clearance opening, one end of each clamp arm is transmission-connected to the clamp arm driving assembly, and the other ends form the clamping channel coaxially connected to the clearance opening; the clamp arm driving assembly is arranged on the chuck, and is used to drive the other end of each clamp arm to rotate away from or toward the axis of the clearance opening to expand or reduce the clamping channel.

5. The long rod processing machine tool according to claim 4, characterized in that: The clamp arm drive assembly comprises: A ring block, wherein the ring block is sleeved on the chuck, and one end of each clamp arm is connected to the ring block through a rotating shaft and is connected to the chuck through a rotating shaft; A telescopic driving rod, one end of which is fixedly connected to the ring block, and a telescopic rod of the telescopic driving rod is fixedly connected to the side of the chuck, for driving the chuck to rotate relative to the ring block.

6. The long rod processing machine tool according to any one of claims 1 to 5, characterized in that: The limiting component comprises: A limit block, slidably disposed on the frame along the first direction and provided with the limit hole; A pressing block is detachably mounted on the frame and is provided with a pressing groove; A pressing wheel and a pressing wheel driving member, wherein the pressing wheel is rotatably arranged on the output end of the pressing wheel driving member, and the pressing channel is formed between the pressing wheel and the pressing groove of the pressing block. The pressing wheel driving member is arranged on the frame and is used to drive the pressing wheel to move toward the notch of the pressing groove to tightly press the long rod and make the long rod be located on the same axis in the pressing channel and at the chuck.

7. The long rod processing machine tool according to claim 6, characterized in that: The pressing block can be slidably arranged on the frame in the vertical direction, the pressing groove is V-shaped, and a fastener is arranged between the pressing block and the frame, and the fastener is used to fix the pressing block and the frame.

8. The long rod processing machine tool according to claim 6, characterized in that: The long rod processing machine tool also includes: A locking piece, provided on the limiting block, and used to lock the thin and soft long rod in the limiting hole; The tensioning driving member is arranged on the frame and is drivingly connected to the limit block. The tensioning driving member is used for driving the limit block to slide along the first direction.

9. The long rod processing machine tool according to claim 8, characterized in that: The long rod processing machine also includes: a moving-out driving member, which is slidably arranged on the frame along the first direction and connected to the output end of the tensioning driving member. The output end of the moving-out driving member is connected to the limit block and is used to drive the limit block to move in a direction perpendicular to the first direction.

10. The long rod processing machine tool according to any one of claims 1 to 5 and 7 to 9, characterized in that: The long rod processing machine tool further comprises: a detection member and a detection driving member, wherein the detection driving member is arranged on the frame and is transmission-connected with the detection member; The detection driving member is used to drive the detection member to move in a direction perpendicular to the first direction, and the detection member is used to detect the degree of radial circular runout during the rotation of the long rod.

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