Grinding machine for tubular workpieces

Abstract

The present invention discloses a grinding machine for tubular workpieces, which relates to the technical field of grinding machines. Specifically, it comprises: a machine body, wherein the top of the machine body is fixedly connected to a workbench, and the outside of the workbench is fixedly connected to a first telescopic rod; the grinding machine for tubular workpieces also comprises: a processing mechanism for grinding and transporting the tubular workpiece, wherein the processing mechanism comprises a grinding system, wherein the grinding system is arranged on the outside of the machine body, a second slide is provided inside the workbench, a fixed plate is slidably connected inside the second slide, the top of the fixed plate is fixedly connected to a fourth telescopic rod, and the top of the fourth telescopic rod is fixedly connected to a feeding assembly; a collecting mechanism, wherein the collecting mechanism is fixedly connected to the outside of the first telescopic rod, wherein the collecting mechanism comprises a movable plate, and a placement groove is provided inside the movable plate. The grinding machine for tubular workpieces achieves the purpose of improving the utilization efficiency of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding machines, in particular to a grinding machine for tubular workpieces. Background Art

[0002] A grinding machine is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinding machines use high-speed rotating grinding wheels for grinding, while a few use other abrasive tools such as oilstones, abrasive belts, and free abrasives for processing. Examples include honing machines, superfinishing machines, belt grinders, lapping machines, and polishing machines.

[0003] When a tube polishing machine is used to polish a tube, the tube moves forward along with the polishing system. During this process, the front end of the tube tends to tilt up and deviate from the original motion trajectory, resulting in uneven polishing of the tube. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a grinding machine for tubular workpieces, which specifically includes:

[0005] A machine body, wherein a workbench is fixedly connected to the top of the machine body, and a first telescopic rod is fixedly connected to the outside of the workbench;

[0006] The grinding machine for tubular workpieces also includes:

[0007] A processing mechanism for grinding and transporting tubular workpieces, the processing mechanism being fixedly connected to the top of a workbench and including a grinding system disposed on the outside of the machine body; a second slideway being provided inside the workbench, a fixed plate being slidably connected inside the second slideway, a fourth telescopic rod being fixedly connected to the top of the fixed plate, and a feeding assembly being fixedly connected to the top of the fourth telescopic rod;

[0008] A collecting mechanism is used to collect polished tubular workpieces. The collecting mechanism is fixedly connected to the outside of the first telescopic rod. The collecting mechanism includes a movable plate. A placement groove is provided inside the movable plate. There are three placement grooves. The outside of the movable plate is fixedly connected to a corner plate. The outside of the corner plate is fixedly connected to a first electric push rod. The movable plate is fixedly connected to the outside of the first telescopic rod.

[0009] Preferably, a first slide is provided inside the body, a first slide is slidably connected inside the first slide, a positioning mechanism is fixedly connected outside the first slide, a telescopic column is fixedly connected to the top of the first slide, and the telescopic column is fixedly connected to the inside of the first slide.

[0010] Preferably, the feed assembly includes a feed pipe, a through groove is opened inside the feed pipe, a retaining plate is fixedly connected to the inside of the feed pipe, two retaining plates are provided and are symmetrically arranged, and the feed pipe is fixedly connected to the top of the fourth telescopic rod.

[0011] Preferably, the outside of the feed pipe is fixedly connected with a transverse plate, and two transverse plates are provided and symmetrically arranged. The tops of the two transverse plates are fixedly connected with a fifth telescopic rod, and the top of the fifth telescopic rod is fixedly connected with a top plate.

[0012] Preferably, the outside of the top plate is fixedly connected to a first pressing plate, the outside of the first pressing plate is fixedly connected to a sixth telescopic rod, and the outside of the sixth telescopic rod is fixedly connected to a second pressing plate, for driving the circular tube to move.

[0013] Preferably, a channel is opened inside the movable plate, the outside of the movable plate is fixedly connected to a second electric push rod, the outside of the second electric push rod is fixedly connected to a support plate, the outside of the support plate is fixedly connected to a connecting rod, the outside of the connecting rod is fixedly connected to a sliding plate for driving the circular tube to move, and three connecting rods are provided.

[0014] Preferably, a baffle is fixedly connected to the inside of the placement groove, a socket is fixedly connected to the top of the movable plate, a second arc-shaped plate is snap-connected to the inside of the socket, a third arc-shaped plate is fixedly connected to the top of the second arc-shaped plate, and a cooling pipe is snap-connected to the inside of the third arc-shaped plate for cooling the circular tube at the bottom.

[0015] Preferably, the positioning mechanism includes a second telescopic rod, the outside of the second telescopic rod is fixedly connected to a third telescopic rod, the outside of the third telescopic rod is fixedly connected to a fixed cylinder, a fan is provided inside the fixed cylinder, and the bottom of the fixed cylinder is fixedly connected to a bent pipe for supplying air to the second slide, and the second telescopic rod is fixedly connected to the outside of the first slide.

[0016] Preferably, the exterior of the fixed cylinder is fixedly connected to a steering joint, the interior of the steering joint is rotatably connected to a first pipe, the interior of the first pipe is fixedly connected to a stretching rod, and the exterior of the stretching rod is fixedly connected to a positioning assembly.

[0017] Preferably, the positioning assembly includes a second pipe, the interior of the second pipe is provided with a circulation groove to facilitate the cooling block to transfer the temperature to the circular tube, the outside of the second pipe is fixedly connected to an annular plate, the outside of the annular plate is fixedly connected to a first arc-shaped plate for contacting and fixing the circular tube, and the second pipe is fixedly connected to the outside of the stretching rod.

[0018] The present invention provides a grinding machine for tubular workpieces. It has the following beneficial effects:

[0019] This grinding machine for tubular workpieces incorporates a positioning mechanism, a processing mechanism, and a collection mechanism to transport, position, and collect round tubes. When polishing a round tube using a round tube polisher, the tube follows the grinding system as it moves forward. During this process, the front end of the tube tends to tilt, deviating from its original motion trajectory, resulting in uneven polishing. Therefore, positioning and processing mechanisms are incorporated to feed, secure, and polish the tube, ensuring that the tube remains at the same level as it moves forward, preventing it from deviating from its original motion trajectory under the influence of the grinding system. This addresses this issue.

[0020] The grinding machine for tubular workpieces is equipped with a positioning mechanism to position the round tube in the horizontal direction. When the outside of the round tube is being ground, the round tube is prone to follow the movement of the grinding system, with the front end tilted and deviating from the original motion trajectory. Therefore, a positioning mechanism and a clamping assembly are provided, the first arc-shaped plate is fixed in contact with the inside of the round tube, and the second pipe and the stretching rod can rotate with the round tube, and the stretching rod can be shortened as the round tube moves forward to prevent the round tube from deviating from the original motion trajectory, thereby solving the above problem. A cooling block is provided in the second pipe, and a circulation groove is provided inside the second pipe to transfer the temperature to the round tube to cool the inside of the round tube.

[0021] This grinding machine for tubular workpieces uses a machining mechanism to position the round tube, preventing the bottom of the tube from contacting the through-groove. This reduces the contact area between the feed pipe and the tube and promotes heat dissipation. After machining, the tube can be pressed, separated from the tube by a positioning mechanism, and transported to a second slide and collection mechanism, facilitating discharge.

[0022] This grinding machine for tubular workpieces features a collection mechanism that uniformly collects and cools the tubes. After processing, workers manually remove and organize the tubes to minimize impact with the equipment and prevent tube stacking, thereby preventing deformation. Therefore, a collection mechanism is provided to collect and cool the processed tubes, accelerating their cooling. After collection, the tubes are uniformly pushed outward to prevent stacking or collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a side structural schematic diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the positioning mechanism structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the latch assembly of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the processing mechanism of the present invention;

[0028] Figure 6 This is a schematic structural diagram of the feed assembly of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the collecting mechanism of the present invention;

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at point A.

[0031] In the figure: 1. Machine body; 2. Workbench; 3. Telescopic column; 4. First slide; 5. First slide; 6. Positioning mechanism; 601. Second telescopic rod; 602. Third telescopic rod; 603. Fixed cylinder; 604. Bend pipe; 605. Steering joint; 606. First pipe; 607. Stretching rod; 608. Positioning assembly; 6081. Second pipe; 6082. Flow trough; 6083. Annular plate; 6084. First curved plate; 7. Processing mechanism; 701. Second slide; 702. Fixed plate; 703. Fourth telescopic rod; 704. Feeding assembly; 7041. Feeding pipe; 704 2. Through slot; 7043. Positioning plate; 7044. Horizontal plate; 7045. Fifth telescopic rod; 7046. Top plate; 7047. First pressing plate; 7048. Sixth telescopic rod; 7049. Second pressing plate; 705. Grinding system; 8. First telescopic rod; 9. Collecting mechanism; 901. Moving plate; 902. Angle plate; 903. First electric push rod; 904. Placement slot; 905. Baffle; 906. Second electric push rod; 907. Support plate; 908. Connecting rod; 909. Sliding plate; 910. Holder; 911. Second curved plate; 912. Third curved plate; 913. Cooling pipe. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0033] like Figures 1-8 As shown, the present invention provides a technical solution: specifically comprising:

[0034] The machine body 1 has a workbench 2 fixedly connected to the top of the machine body 1, a first telescopic rod 8 fixedly connected to the outside of the workbench 2, a first slide 4 provided inside the machine body 1, a first slide plate 5 slidably connected to the inside of the first slide plate 4, a positioning mechanism 6 fixedly connected to the outside of the first slide plate 5, a telescopic column 3 fixedly connected to the top of the first slide plate 5, the telescopic column 3 fixedly connected to the inside of the first slide plate 4, and when the telescopic column 3 is opened, the telescopic column 3 drives the first slide plate 5 and the positioning mechanism 6 to move downward in the first slide plate 4, and the telescopic column 3 is provided with two strokes;

[0035] The grinding machine for tubular workpieces also includes:

[0036] The processing mechanism 7 is used to grind and transport tubular workpieces. The processing mechanism 7 is fixedly connected to the top of the workbench 2. The processing mechanism 7 includes a grinding system 705. The grinding system 705 is arranged on the outside of the machine body 1. A second slide 701 is opened inside the workbench 2. A fixed plate 702 is slidably connected inside the second slide 701. The interior of the fixed plate 702 is hollowed out. The top of the fixed plate 702 is fixedly connected to a fourth telescopic rod 703. The top of the fourth telescopic rod 703 is fixedly connected to a feeding assembly 704.

[0037] The collecting mechanism 9 is used to collect the polished tubular workpiece. The collecting mechanism 9 is fixedly connected to the outside of the first telescopic rod 8. The collecting mechanism 9 includes a movable plate 901. The movable plate 901 has three placement grooves 904 formed inside. The outside of the movable plate 901 is fixedly connected to an angle plate 902. The outside of the angle plate 902 is fixedly connected to a first electric push rod 903. The movable plate 901 is fixedly connected to the outside of the first telescopic rod 8.

[0038] Before using the equipment, open the telescopic column 3 to the first stroke. The telescopic column 3 drives the first slide 5 and the positioning mechanism 6 downward to process the interior of the processing mechanism 7. Then manually place the round tube to be polished in the processing mechanism 7. Open the telescopic column 3 to the second stroke. The telescopic column 3 drives the first slide 5 and the positioning mechanism 6 to continue to move downward. Manually adjust the positioning mechanism 6 so that it aligns with the interior of the round tube. Open the processing mechanism 7 to complete the polishing process. After the work is completed, adjust the positioning mechanism 6 and the processing mechanism 7 to separate the positioning mechanism 6 from the round tube. Open the processing mechanism 7 and the collection mechanism 9 to collect the processed round tubes in a unified manner.

[0039] The feeding assembly 704 includes a feeding pipe 7041. The diameter of the circular tube is larger than the inner diameter of the feeding pipe 7041. A through groove 7042 is opened inside the feeding pipe 7041. A positioning plate 7043 is fixedly connected to the inside of the feeding pipe 7041. The positioning plate 7043 is set as a soft board. There are two positioning plates 7043, which are symmetrically arranged. The feeding pipe 7041 is fixedly connected to the top of the fourth telescopic rod 703.

[0040] The outside of the feed pipe 7041 is fixedly connected to a horizontal plate 7044, and there are two horizontal plates 7044, which are symmetrically arranged. The tops of the two horizontal plates 7044 are fixedly connected to a fifth telescopic rod 7045, and there are two fifth telescopic rods 7045, which are symmetrically arranged. The top of the fifth telescopic rod 7045 is fixedly connected to a top plate 7046.

[0041] The outside of the top plate 7046 is fixedly connected to the first pressing plate 7047, the outside of the first pressing plate 7047 is fixedly connected to the sixth telescopic rod 7048, the outside of the sixth telescopic rod 7048 is fixedly connected to the second pressing plate 7049, the bottom of the first pressing plate 7047 is provided with a soft rubber strip, and the bottom of the second pressing plate 7049 is also provided with a rubber strip.

[0042] The fifth telescopic rod 7045 is activated, driving the top plate 7046 and the first pressing plate 7047 upward to create space for grinding. The round tube is manually placed in the feed pipe 7041. At this point, the bottom tube rests on the retaining plate 7043 and does not contact the through slot 7042. The tube is manually pressed, coordinating with the positioning mechanism 6 to engage the tube.

[0043] After the polishing work is completed, the tail of the round tube gradually moves to the bottom of the first pressing plate 7047, and the fifth telescopic rod 7045 is adjusted to the initial state. The rubber strips at the bottom of the first pressing plate 7047 and the second pressing plate 7049 gradually contact and press the tail of the round tube, assisting the separation of the positioning mechanism 6 and the round tube.

[0044] Then the sixth telescopic rod 7048 is opened, and the sixth telescopic rod 7048 drives the second pressing plate 7049 to move toward the collecting mechanism 9. The second pressing plate 7049 drives the round tube to fall into the second slide 701, and the front end of the round tube falls into the collecting mechanism 9.

[0045] A channel is opened inside the movable plate 901, and the outside of the movable plate 901 is fixedly connected to the second electric push rod 906, the outside of the second electric push rod 906 is fixedly connected to the support plate 907, the outside of the support plate 907 is fixedly connected to the connecting rod 908, the outside of the connecting rod 908 is fixedly connected to the sliding plate 909, the outside of the sliding plate 909 is fixedly connected to a rubber ring, and there are three connecting rods 908.

[0046] The interior of the placement groove 904 is fixedly connected to a baffle 905, the top of the movable plate 901 is fixedly connected to a base 910, the interior of the base 910 is snap-connected to a second curved plate 911, the top of the second curved plate 911 is fixedly connected to a third curved plate 912, and the interior of the third curved plate 912 is snap-connected to a cooling pipe 913 for cooling the round tube.

[0047] In the initial state, the placement slot 904 farthest from the first telescopic rod 8 is aligned with the second channel. The second electric push rod 906 is turned on, and the second electric push rod 906 drives the support plate 907, the connecting rod 908, and the sliding plate 909 to move away from the workbench 2 until the sliding plate 909 contacts the baffle 905. As the front end of the round tube enters the placement slot 904, the round tube can be manually pushed completely into the placement slot 904, and the front end of the round tube contacts the rubber ring. The first electric push rod 903 is turned on to the first stroke, and the first electric push rod 903 is stuck in the channel to protect the round tube. Then, the first telescopic rod 8 is turned on to the second stroke to complete the loading of the other two round tubes.

[0048] When unloading is required, the first telescopic rod 8 is opened to the maximum stroke, the first telescopic rod 8 drives the movable plate 901 to move to the outside of the workbench 2, the first electric push rod 903 is adjusted to the initial state, and then the second electric push rod 906 is adjusted to the initial state. The second electric push rod 906 drives the connecting rod 908 and the sliding plate 909 to move toward the direction of the round tube to push the round tube out.

[0049] The positioning mechanism 6 includes a second telescopic rod 601, the outside of the second telescopic rod 601 is fixedly connected to the third telescopic rod 602, the outside of the third telescopic rod 602 is fixedly connected to the fixed cylinder 603, the inside of the fixed cylinder 603 is provided with a fan, and the bottom of the fixed cylinder 603 is fixedly connected to a curved pipe 604, there are three curved pipes 604, and they are evenly arranged, and the second telescopic rod 601 is fixedly connected to the outside of the first slide 5.

[0050] When the telescopic column 3 is opened to the first stroke, the elbow 604 is flush with the feed pipe 7041. When the fan is turned on, air enters the elbow 604 through the fixed cylinder 603 and then flows through the three elbows 604 to the outside of the feed pipe 7041 and the grinding system 705, supplying air to the feed channel and the grinding system 705, promoting cooling of the grinding system 705. Because the fixed plate 702 is hollowed out, debris in the feed channel can move outward through the fixed plate 702.

[0051] The outside of the fixed cylinder 603 is fixedly connected to the steering joint 605, the inside of the steering joint 605 is rotatably connected to the first pipe 606, the inside of the first pipe 606 is fixedly connected to the stretching rod 607, and the outside of the stretching rod 607 is fixedly connected to the locking assembly 608. There are three steering joints 605, first pipes 606, stretching rods 607 and locking assemblies 608.

[0052] When the telescopic column 3 is in the second stroke, the stroke of the third telescopic rod 602 is adjusted according to the size of the round tube so that the corresponding positioning assembly 608 is aligned with the round tube.

[0053] The positioning assembly 608 includes a second pipe 6081, a cooling block is placed inside the second pipe 6081, a circulation groove 6082 is opened inside the second pipe 6081, the outside of the second pipe 6081 is fixedly connected to a ring plate 6083, the outside of the ring plate 6083 is fixedly connected to a first curved plate 6084, the first curved plate 6084 is set to rubber material, and the second pipe 6081 is fixedly connected to the outside of the stretching rod 607.

[0054] After selecting the appropriate locking assembly 608, the second telescopic rod 601 is opened, and the second telescopic rod 601 drives the third telescopic rod 602 and the fixed cylinder 603 to move away from the processing mechanism 7. The second pipe 6081 is manually pulled out of the first pipe 606, and then the buckle is manually locked on the outside of the stretching rod 607 to fix the position of the stretching rod 607.

[0055] After the circular tube is positioned correctly, the tube is manually pressed, and the stroke of the second telescopic rod 601 is adjusted to return it to its initial position. The second pipe 6081 gradually enters the circular tube, and the first curved plate 6084 contacts the inner wall of the circular tube. The buckle on the outside of the stretch rod 607 is then removed. As the grinding system 705 rotates the circular tube, the circular tube drives the first curved plate 6084, the annular plate 6083, and the second pipe 6081 inside. The second pipe 6081 then drives the stretch rod 607 and the first pipe 606. At this point, the first pipe 606 rotates inside the steering joint 605. As the circular tube follows the two grinding wheels toward the positioning mechanism 6, the stretch rod 607 is gradually squeezed and begins to shorten.

[0056] Open the processing mechanism 7, press the round tube, and then open the second telescopic rod 601. The second telescopic rod 601 drives the third telescopic rod 602, the fixing cylinder 603 and the positioning assembly 608 to move away from the round tube until the positioning assembly 608 is separated from the round tube.

[0057] Working Principle: Before using the equipment, open the telescopic column 3 to the first stroke. This moves the first slide 5 and the positioning mechanism 6 downward, processing the interior of the processing mechanism 7. When the telescopic column 3 is opened to the first stroke, the elbow 604 is flush with the feed pipe 7041. Turn on the blower, and air flows through the fixed cylinder 603 into the elbow 604. From there, it flows through the three elbows 604 to the outside of the feed pipe 7041 and the grinding system 705, supplying air to the feed channel and the grinding system 705, promoting cooling. Because the fixed plate 702 is hollowed out, debris in the feed channel can be displaced outward through the fixed plate 702.

[0058] Then, manually place the round tube that needs to be polished into the processing mechanism 7, and manually place the round tube into the feed pipe 7041. At this time, the bottom round tube is on the locking plate 7043 and does not contact the through groove 7042. Open the telescopic column 3 to the second stroke, and the telescopic column 3 drives the first slide 5 and the positioning mechanism 6 to continue to move downward. According to the size of the round tube, adjust the stroke of the third telescopic rod 602 so that the corresponding locking assembly 608 is aligned with the round tube. After selecting the appropriate locking assembly 608, open the second telescopic rod 601, and the second telescopic rod 601 drives the third telescopic rod 602 and the fixed cylinder 603 to move away from the processing mechanism 7. Manually pull the second pipe 6081 out of the first pipe 606, and then manually clamp the buckle on the outside of the stretching rod 607 to fix the position of the stretching rod 607.

[0059] After the circular tube is positioned correctly, it is manually pressed to secure its position. The stroke of the second telescopic rod 601 is then adjusted to return it to its initial position. The second pipe 6081 gradually enters the circular tube, and the first curved plate 6084 contacts the inner wall of the circular tube. The buckle on the outside of the stretch rod 607 is then removed. As the grinding system 705 rotates the circular tube, the circular tube drives the first curved plate 6084, the annular plate 6083, and the second pipe 6081 inside. The second pipe 6081 then drives the stretch rod 607 and the first pipe 606. At this point, the first pipe 606 rotates inside the steering joint 605. As the circular tube follows the two grinding wheels toward the positioning mechanism 6, the stretch rod 607 is gradually squeezed and begins to shorten.

[0060] The polishing system 705 is activated to complete the polishing process. After the polishing process is complete, the positioning mechanism 6 and the processing mechanism 7 are adjusted to separate the positioning mechanism 6 from the tube. The processing mechanism 7 is activated to press the tube, and then the second telescopic rod 601 is activated. This drives the third telescopic rod 602, the fixing cylinder 603, and the locking assembly 608 away from the tube until the locking assembly 608 is separated from the tube.

[0061] The sixth telescopic rod 7048 is then activated, driving the second pressing plate 7049 toward the collection mechanism 9. This forces the tube to fall into the second slide 701, with the front end of the tube falling into the collection mechanism 9. The processing mechanism 7 and the collection mechanism 9 are activated to uniformly collect the processed tubes. Initially, the placement slot 904 farthest from the first telescopic rod 8 is aligned with the second channel. The second electric push rod 906 is activated, driving the support plate 907, connecting rod 908, and sliding plate 909 away from the workbench 2 until the sliding plate 909 contacts the baffle 905. As the front end of the tube enters the placement slot 904, it can be manually pushed fully into the placement slot 904, until the front end of the tube contacts the rubber ring. The first electric push rod 903 is activated to its first stroke, locking into the channel and securing the tube. Then the first telescopic rod 8 is opened to two strokes to complete the loading of the other two round tubes.

[0062] When unloading is required, the first telescopic rod 8 is opened to the maximum stroke, the first telescopic rod 8 drives the movable plate 901 to move to the outside of the workbench 2, the first electric push rod 903 is adjusted to the initial state, and then the second electric push rod 906 is adjusted to the initial state. The second electric push rod 906 drives the connecting rod 908 and the sliding plate 909 to move toward the direction of the round tube to push the round tube out.

[0063] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A grinding machine for a tubular workpiece, comprising: The machine body (1) is characterized in that: the top of the machine body (1) is fixedly connected to a workbench (2), the outside of the workbench (2) is fixedly connected to a first telescopic rod (8), the inside of the machine body (1) is provided with a first slideway (4), the inside of the first slideway (4) is slidably connected to a first slide plate (5), and the outside of the first slide plate (5) is fixedly connected to a positioning mechanism (6); The grinding machine for tubular workpieces also includes: A processing mechanism (7) is used for grinding and transporting tubular workpieces, the processing mechanism (7) is fixedly connected to the top of the workbench (2), the processing mechanism (7) includes a grinding system (705), the grinding system (705) is arranged outside the machine body (1), a second slideway (701) is provided inside the workbench (2), a fixed plate (702) is slidably connected inside the second slideway (701), a fourth telescopic rod (703) is fixedly connected to the top of the fixed plate (702), and a feeding assembly (704) is fixedly connected to the top of the fourth telescopic rod (703); A collecting mechanism (9) is used to collect polished tubular workpieces, the collecting mechanism (9) being fixedly connected to the outside of the first telescopic rod (8), the collecting mechanism (9) comprising a movable plate (901), the inside of the movable plate (901) being provided with a placement groove (904), three placement grooves (904) being provided, the outside of the movable plate (901) being fixedly connected to an angle plate (902), the outside of the angle plate (902) being fixedly connected to a first electric push rod (903), and the movable plate (901) being fixedly connected to the outside of the first telescopic rod (8); A channel is provided inside the movable plate (901), the outside of the movable plate (901) is fixedly connected to a second electric push rod (906), the outside of the second electric push rod (906) is fixedly connected to a support plate (907), the outside of the support plate (907) is fixedly connected to a connecting rod (908), the outside of the connecting rod (908) is fixedly connected to a sliding plate (909), and three connecting rods (908) are provided; The interior of the placement groove (904) is fixedly connected to a baffle (905), the top of the movable plate (901) is fixedly connected to a holder (910), the interior of the holder (910) is snap-connected to a second curved plate (911), the top of the second curved plate (911) is fixedly connected to a third curved plate (912), and the interior of the third curved plate (912) is snap-connected to a cooling pipe (913); The positioning mechanism (6) comprises a second telescopic rod (601), the exterior of the second telescopic rod (601) is fixedly connected to a third telescopic rod (602), the exterior of the third telescopic rod (602) is fixedly connected to a fixed cylinder (603), a fan is provided inside the fixed cylinder (603), a bent pipe (604) is fixedly connected to the bottom of the fixed cylinder (603), and the second telescopic rod (601) is fixedly connected to the exterior of the first slide plate (5); The exterior of the fixed cylinder (603) is fixedly connected to a steering joint (605), the interior of the steering joint (605) is rotatably connected to a first pipe (606), the interior of the first pipe (606) is fixedly connected to a stretching rod (607), and the exterior of the stretching rod (607) is fixedly connected to a positioning assembly (608); The locking assembly (608) includes a second pipe (6081), a circulation groove (6082) is provided inside the second pipe (6081), an annular plate (6083) is fixedly connected to the outside of the second pipe (6081), a first arc-shaped plate (6084) is fixedly connected to the outside of the annular plate (6083), and the second pipe (6081) is fixedly connected to the outside of the stretching rod (607).

2. A grinding machine for a tubular workpiece according to claim 1, characterized in that: A telescopic column (3) is fixedly connected to the top of the first slide plate (5), and the telescopic column (3) is fixedly connected to the inside of the first slideway (4).

3. A grinding machine for a tubular workpiece according to claim 1, characterized in that: The feed assembly (704) comprises a feed pipe (7041), a through groove (7042) is provided inside the feed pipe (7041), a retaining plate (7043) is fixedly connected inside the feed pipe (7041), two retaining plates (7043) are provided and are symmetrically arranged, and the feed pipe (7041) is fixedly connected to the top of the fourth telescopic rod (703).

4. A grinding machine for a tubular workpiece according to claim 3, characterized in that: The outside of the feed pipe (7041) is fixedly connected to a transverse plate (7044), and two transverse plates (7044) are provided and symmetrically arranged. The tops of the two transverse plates (7044) are fixedly connected to a fifth telescopic rod (7045), and the top of the fifth telescopic rod (7045) is fixedly connected to a top plate (7046).

5. A grinding machine for a tubular workpiece according to claim 4, characterized in that: The top plate (7046) is externally fixedly connected to a first pressing plate (7047), the first pressing plate (7047) is externally fixedly connected to a sixth telescopic rod (7048), and the sixth telescopic rod (7048) is externally fixedly connected to a second pressing plate (7049).

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