Thread grinder
By designing stabilizing and supporting components, the problem of decreased thread accuracy caused by the wobbling of the free end during the rotation of shaft parts was solved, thus improving the stability and accuracy of thread processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI LIANHE STEEL & PLASTIC MOULD CO LTD
- Filing Date
- 2026-01-05
- Publication Date
- 2026-05-08
AI Technical Summary
During rotation, the free end of shaft-type parts is prone to radial wobble of varying degrees, which leads to a decrease in thread machining accuracy.
The system employs a stabilizing component and a supporting component. The stabilizing component achieves synchronous radial movement and limiting of shaft parts through the cooperation of a rotating gear ring, bevel gear, and contact wheel. The supporting component provides stable support and fine grinding through the design of support rollers and grinding blocks, ensuring machining accuracy.
It improves the stability and accuracy of thread processing, reduces vibration and deviation, and enhances processing efficiency and quality.
Smart Images

Figure CN121589676B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of thread grinding machine technology, and particularly relates to a thread grinding machine. Background Technology
[0002] In the field of mechanical manufacturing, threads are a basic and critical connection and transmission element, and their machining accuracy directly affects the working performance and reliability of mechanical equipment. In order to ensure the accuracy, consistency and surface integrity of the threads, a matching thread grinding machine is required to process them.
[0003] According to Chinese Patent Publication No. CN113199094B, an external thread processing device is disclosed, which can change the forward movement speed of the cutting tool, thereby changing the thread processing effect; the position of the two cutting tools can be flexibly adjusted to facilitate thread processing and improve efficiency. It includes a screw fixing device, a speed changing device, and a thread processing device. Rotating the rotating rod three drives the rotating rod two to rotate, which drives the screw one to rotate, drives the limiting rod to move, and drives the rotating wheel three to slide on the long rod, thereby changing the contact position between the rotating wheel three and the conical roller one, thereby changing the rotation speed of the rotating wheel three, changing the rotation speed of the conical roller two, and thus changing the rotation speed of the screw two, thereby changing the forward or backward movement speed of the thread processing device.
[0004] However, the above solution has the following drawbacks because it only clamps one end of the shaft-like part: during the rotation, the free end of the shaft-like part usually experiences radial wobble of varying degrees, which causes deviations in the machined thread and affects the machining accuracy. Therefore, it needs to be improved. Summary of the Invention
[0005] The purpose of this invention is to solve the problem that the free end of shaft parts usually experiences radial wobble of varying degrees during rotation, which causes deviations in the machined threads and affects the machining accuracy. Therefore, a thread grinding machine is proposed.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A thread grinding machine includes a connecting plate and a clamping mechanism. The clamping mechanism is disposed on one side of the top of the connecting plate and is used to clamp one end of a shaft-type part. A stabilizing component is disposed on the top of the connecting plate.
[0008] The stabilizing component includes a movable frame, a movable mechanism at the bottom of the movable frame, the movable mechanism being located on the top of the connecting plate, a rotating ring rotatably connected inside the movable frame, and multiple movable plates capable of synchronous radial movement inside the rotating ring, the multiple movable plates being arranged in a circumferential array, and multiple contact wheels arranged in a linear array on one side of each movable plate to prevent the swinging phenomenon that occurs when the shaft-like parts rotate.
[0009] As a further description of the above technical solution:
[0010] The stabilizing component also includes:
[0011] Multiple adjusting screws are arranged in a circular array along the axis of the rotating ring. A cavity is opened inside the rotating ring. One end of the adjusting screw extends into the cavity and is connected to a second bevel gear. The outer surface of the end of the adjusting screw away from the second bevel gear is connected to a second screw seat. The other end of the second screw seat is connected to a moving plate.
[0012] Multiple transmission gears are arranged in a circular array along the axis of the rotating ring. One side of each transmission gear is connected to a rotating shaft, and the other end of the rotating shaft extends into the cavity and is connected to a first bevel gear. The first bevel gear meshes with a second bevel gear.
[0013] Rotate the gear ring, which is rotatably connected to one side of the rotating ring, and multiple transmission gears mesh with the rotating gear ring.
[0014] As a further description of the above technical solution:
[0015] The stabilizing component also includes:
[0016] An outer ring is connected to the outside of the rotating ring, and a plurality of limiting holes are provided on one side of the outer ring in a circular array;
[0017] A threaded seat is connected to the outside of a rotating gear ring. The threaded seat has an internal threaded connection to a limiting bolt, which can engage with a limiting hole.
[0018] As a further description of the above technical solution:
[0019] The stabilizing component also includes:
[0020] Multiple sets of telescopic rods, each set consisting of two telescopic rods, are arranged symmetrically on both sides of the second lead screw seat. One end of each telescopic rod is connected to one side of the moving plate, and the other end is connected to the inner side of the rotating ring.
[0021] As a further description of the above technical solution:
[0022] The moving mechanism includes:
[0023] The movable lead screw has a movable groove on the top of the connecting plate, and the movable lead screw is rotatably connected in the movable groove;
[0024] The drive motor is fixedly mounted on one side of the connecting plate via a mounting plate, and one end of the movable lead screw extends to the outside of the movable slot and is connected to one end of the output shaft of the drive motor.
[0025] The first lead screw seat is connected to the bottom of the movable frame. The first lead screw seat is connected to the movable lead screw in a transmission connection. The first lead screw seat is slidably connected in the movable groove.
[0026] Two sliders are connected to the movable frame via a connecting rod. The connecting plate has grooves on both sides, and the sliders are slidably connected in the grooves.
[0027] As a further description of the above technical solution:
[0028] A support assembly is provided on one side of the mobile frame, the support assembly including:
[0029] Connect the side panel to one side of the mobile frame;
[0030] Two first electric actuators are symmetrically connected to one side of the connecting side plate, and the output ends of the two first electric actuators are connected to the same connecting seat.
[0031] The support roller is rotatably connected to the connecting seat. The support roller has an inner cavity and a plurality of through grooves arranged in a circumferential array on its surface. The through grooves are connected to the inner cavity.
[0032] Multiple grinding blocks are slidably connected within the through groove.
[0033] As a further description of the above technical solution:
[0034] The support component also includes:
[0035] Two movable circular plates are slidably connected inside the cavity, and the two movable circular plates can move relative to each other;
[0036] Two sets of connecting rods, each set of connecting rods consists of multiple connecting rods arranged in a circumferential array. One end of each connecting rod is hinged to the outer circumference of the movable circular plate, and the other end of each connecting rod is hinged to one side of the grinding block.
[0037] Two sets of limiting slot seats, each set of limiting slot seats is composed of multiple limiting slot seats distributed in a circumferential array, the limiting slot seats are connected to the inner cavity, and the grinding block is slidably connected to the limiting slot seats;
[0038] The second electric push rod is connected inside the cavity, and the output end of the second electric push rod is connected to one side of one of the movable circular plates.
[0039] As a further description of the above technical solution:
[0040] The support component also includes:
[0041] Two traction ropes are centrally symmetrically arranged between two movable circular plates, with each end of the traction rope connected to one of the two movable circular plates respectively.
[0042] Two steering wheels are centrally symmetrically arranged inside the cavity, and the steering wheels are connected to the inside of the cavity;
[0043] Two guide wheels are centrally symmetrically arranged inside the cavity, and the guide wheels are connected to the inside of the cavity. The traction rope passes through the steering wheel and the guide wheel in sequence.
[0044] As a further description of the above technical solution:
[0045] Also includes:
[0046] The first slide is located on one side of the top of the processing base, and the connecting plate is connected to the top of the first slide;
[0047] A machining grinding wheel is provided with an adjustment base at its bottom, and the adjustment base is connected to the top of the machining base.
[0048] As a further description of the above technical solution:
[0049] Also includes:
[0050] The dressing wheel has a second slide at its bottom, which is located on top of the processing base.
[0051] Compared with existing technologies, a thread grinding machine adopting the above technical solution has the following beneficial effects:
[0052] 1. In this invention, by setting a stabilizing component, the rotating gear ring achieves synchronous radial movement of multiple contact wheels through the cooperation of the first and second bevel gears. This enables rapid and precise uniform contact and positioning of the outer surface of shaft-like parts, effectively constraining the swinging of the free end of the parts and improving the stability and accuracy of external thread processing. Combined with the follow-up control of the moving mechanism and the moving frame, the distance between the rotating ring and the processing grinding wheel can be dynamically maintained during the part feeding process, continuously providing stable support, thereby reducing vibration and deviation, ensuring the consistency and reliability of thread processing, and improving processing efficiency and quality.
[0053] 2. In this invention, by setting up a support component, the curved surface design of the support roller and the controllable adjustment of the stroke of the connecting seat during external thread processing can adapt to changes in the angle of the grinding wheel, continuously providing stable and consistent support. This effectively counteracts the pressure generated on the side of the grinding wheel during the feeding of shaft-type parts, preventing damage to the grinding wheel due to excessive force. After the dressing wheel trims the curved edge of the grinding wheel, the second electric push rod drives the moving circular plate to move. Guided by the traction rope, guide wheel, and guide wheel, the two moving circular plates move synchronously in opposite directions, causing the grinding block to slide out of the through groove. Subsequently, the first electric push rod drives the support roller to bring the grinding block into contact with the side of the grinding wheel for fine grinding, making the side of the grinding wheel flat and smooth, thereby improving the processing accuracy of the grinding wheel, ensuring that the final thread groove is flat and uniform, and improving processing quality and stability. Attached Figure Description
[0054] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0055] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;
[0056] Figure 3 This is a three-dimensional structural diagram of the stabilizing component and the supporting component in this invention;
[0057] Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A;
[0058] Figure 5 This is a three-dimensional structural diagram of the stabilizing component in this invention;
[0059] Figure 6 This is a partial three-dimensional structural diagram of the stabilizing component in this invention;
[0060] Figure 7 For the present invention Figure 6 Enlarged structural diagram of section B;
[0061] Figure 8 This is a three-dimensional cross-sectional view of the stabilizing component in this invention;
[0062] Figure 9 This is a three-dimensional cross-sectional view of the support component in this invention;
[0063] Figure 10 This is a schematic diagram of the internal three-dimensional structure of the support component in this invention.
[0064] Legend: 1. Machining base; 2. First slide; 3. Connecting plate; 4. Clamping mechanism; 5. Machining grinding wheel; 6. Adjusting base; 7. Dressing wheel; 8. Stabilizing component; 801. Moving frame; 802. Rotating ring; 803. Drive motor; 804. Slide groove; 805. Slider; 806. Moving lead screw; 807. First lead screw seat; 808. Outer ring; 809. Rotating gear ring; 810. Transmission gear; 811. Limit bolt; 812. First bevel gear; 8 13. Second bevel gear; 814. Adjusting screw; 815. Second screw seat; 816. Telescopic rod; 817. Moving plate; 818. Fitting wheel; 9. Support assembly; 901. Connecting side plate; 902. First electric push rod; 903. Connecting seat; 904. Support roller; 905. Grinding block; 906. Moving circular plate; 907. Limiting groove seat; 908. Second electric push rod; 909. Connecting rod; 910. Guide wheel; 911. Traction rope; 912. Steering wheel. Detailed Implementation
[0065] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0066] Please see Figures 1-10 The present invention provides a technical solution:
[0067] A thread grinding machine includes a connecting plate 3, a stabilizing component 8 disposed on the top of the connecting plate 3, and further includes;
[0068] The first slide 2 is located on one side of the top of the processing base 1, and the connecting plate 3 is connected to the top of the first slide 2;
[0069] A machining grinding wheel 5 is provided at the bottom of the machining grinding wheel 5, and the adjustment base 6 is connected to the top of the machining base 1;
[0070] In this process, by adjusting the base 6, an angle can be generated when the grinding wheel 5 contacts the part. Thus, by rotating the grinding wheel 5 and feeding the shaft part, the external thread of the shaft part can be processed.
[0071] Dressing wheel 7, with a second slide at the bottom of dressing wheel 7, the second slide being located at the top of processing base 1;
[0072] Among them, the first slide 2 and the second slide are both existing ball screw slide structures, which are commonly used structures in this field.
[0073] The clamping mechanism 4 is located on one side of the top of the connecting plate 3 and is used to clamp one end of the shaft-type parts;
[0074] The clamping mechanism 4 is mainly composed of radially distributed springs and steel balls, and is used to center and clamp shaft parts.
[0075] The stabilizing component 8 includes a movable frame 801, a movable mechanism is provided at the bottom of the movable frame 801, the movable mechanism is provided at the top of the connecting plate 3, a rotating ring 802 is rotatably connected inside the movable frame 801, and multiple movable plates 817 capable of synchronous radial movement are provided inside the rotating ring 802, and the multiple movable plates 817 are arranged in a circumferential array. Multiple contact wheels 818 arranged in a linear array are provided on one side of the movable plates 817 to prevent the swinging phenomenon that occurs when the shaft parts rotate.
[0076] Stable component 8 also includes:
[0077] Multiple adjusting screws 814 are arranged in a circular array along the axis of the rotating ring 802. The rotating ring 802 has a cavity inside. One end of the adjusting screw 814 extends into the cavity and is connected to a second bevel gear 813. The outer surface of the end of the adjusting screw 814 away from the second bevel gear 813 is connected to a second screw seat 815. The other end of the second screw seat 815 is connected to a moving plate 817.
[0078] Multiple transmission gears 810 are arranged in a circular array along the axis of the rotating ring 802. One side of each transmission gear 810 is connected to a rotating shaft, and the other end of the rotating shaft extends into the cavity and is connected to a first bevel gear 812. The first bevel gear 812 meshes with a second bevel gear 813.
[0079] Rotate the gear ring 809, which is rotatably connected to one side of the rotating ring 802, and multiple transmission gears 810 mesh with the rotating gear ring 809.
[0080] The outer ring 808 is connected to the outside of the rotating ring 802, and a plurality of limiting holes are provided on one side of the outer ring 808 in a circular array.
[0081] A threaded seat is connected to the outside of the rotating gear ring 809. The threaded seat has an internal threaded connection to a limit bolt 811, which can engage with the limit hole.
[0082] Multiple sets of telescopic rods 816, and each set of telescopic rods 816 consists of two telescopic rods 816. The two telescopic rods 816 in the same set are symmetrically arranged on both sides of the second lead screw seat 815. One end of the telescopic rod 816 is connected to one side of the moving plate 817, and the other end of the telescopic rod 816 is connected to the inner side of the rotating ring 802.
[0083] Mobile institutions include:
[0084] The movable lead screw 806 has a movable groove on the top of the connecting plate 3, and the movable lead screw 806 is rotatably connected in the movable groove;
[0085] The drive motor 803 is fixedly mounted on one side of the connecting plate 3 via the mounting plate, and one end of the moving screw 806 extends to the outside of the moving slot and is connected to one end of the output shaft of the drive motor 803.
[0086] The first lead screw seat 807 is connected to the bottom of the movable frame 801. The first lead screw seat 807 is connected to the movable lead screw 806 in a transmission connection. The first lead screw seat 807 is slidably connected in the movable groove. Flexible dustproof pads are connected to both sides of the first lead screw seat 807, and the other end of the flexible dustproof pad is connected to one side of the inner wall of the movable groove.
[0087] Two sliders 805 are connected to the movable frame 801 via a connecting rod. The connecting plate 3 has grooves 804 on both sides, and the sliders 805 are slidably connected in the grooves 804.
[0088] The specific usage method and working principle are as follows: the operator installs and limits one end of the shaft part through the clamping mechanism 4, and the centering and clamping of the shaft part is achieved by the spring and ball set in the clamping mechanism 4;
[0089] Subsequently, the drive motor 803 drives the movable lead screw 806 to rotate. The movable lead screw 806, through the first lead screw seat 807, drives the movable frame 801 to move closer to the clamping mechanism 4. The movable frame 801 drives the rotating ring 802 to move, so that the rotating ring 802 passes through the shaft part and approaches the clamping end of the shaft part. Then, the operator rotates the rotating gear ring 809, which drives multiple transmission gears 810 to rotate synchronously. The multiple transmission gears 810 drive multiple first bevel gears 812 to rotate synchronously. The first bevel gears 812 drive the second bevel gears 813 to rotate, and the second bevel gears 813 drive the second lead screw. The seat 815 moves towards the center of the rotating ring 802. The second lead screw seat 815 drives multiple contact wheels 818 to move synchronously towards the axis of the shaft part through the moving plate 817, so that the multiple contact wheels 818 can synchronously contact and limit the outer surface of the shaft part. After the contact of the shaft part is completed, the operator rotates the limiting bolt 811, so that the limiting bolt 811 is screwed into the limiting hole, so that the limiting bolt 811 is inserted and connected with the limiting hole, thus limiting the position of the rotating gear ring 809. This can prevent the free end of the shaft part from swinging when it rotates, and ensure the stability and accuracy of the external thread processing of the shaft part.
[0090] When the grinding wheel 5 is used to process shaft parts, the clamping mechanism 4 drives the shaft parts to rotate, and the first slide 2 drives the clamping mechanism 4 to move through the connecting plate 3. The clamping mechanism 4 drives the shaft parts to complete the feed, thereby completing the processing of external threads.
[0091] As the shaft parts are fed, the drive motor 803 drives the movable lead screw 806 to rotate, and the movable lead screw 806 drives the first lead screw seat 807 to move. The first lead screw seat 807, together with the two sliders 805, drives the movable frame 801 to gradually move away from the clamping mechanism 4, so that the distance between the movable frame 801 and the machining grinding wheel 5 remains consistent, stabilizing the free end of the shaft parts.
[0092] Please see Figures 1-5 and Figures 9-10 A support component 9 is provided on one side of the mobile frame 801. The support component 9 includes:
[0093] Connecting side plate 901, connected to one side of the movable frame 801;
[0094] Two first electric push rods 902 are symmetrically connected to one side of the connecting side plate 901, and the output ends of the two first electric push rods 902 are connected to the same connecting seat 903.
[0095] The support roller 904 is rotatably connected to the connecting seat 903. The support roller 904 has an inner cavity, and the surface of the support roller 904 has multiple through grooves arranged in a circumferential array. The through grooves are connected to the inner cavity.
[0096] Multiple grinding blocks 905 are slidably connected within the through groove;
[0097] Two movable circular plates 906 are slidably connected in the inner cavity, and the two movable circular plates 906 can move relative to each other;
[0098] Two sets of connecting rods 909, each set of connecting rods 909 consists of multiple connecting rods 909 arranged in a circular array. One end of the connecting rod 909 is hinged to the outer periphery of the movable circular plate 906, and the other end of the connecting rod 909 is hinged to one side of the grinding block 905.
[0099] Two sets of limiting slot seats 907, each set of limiting slot seats 907 is composed of multiple limiting slot seats 907 distributed in a circumferential array, the limiting slot seats 907 are connected to the inner cavity, and the grinding block 905 is slidably connected to the limiting slot seats 907.
[0100] The second electric push rod 908 is connected inside the inner cavity, and the output end of the second electric push rod 908 is connected to one side of one of the movable circular plates 906.
[0101] Two traction ropes 911 are centrally symmetrically arranged between two movable circular plates 906, with each end of the traction rope 911 connected to the two movable circular plates 906 respectively.
[0102] Two steering wheels 912 are centrally symmetrically arranged in the inner cavity, and the steering wheels 912 are connected to the inside of the inner cavity;
[0103] Two guide wheels 910 are centrally symmetrically arranged in the inner cavity. The guide wheels 910 are connected to the inside of the inner cavity, and the traction rope 911 passes through the steering wheel 912 and the guide wheel 910 in sequence.
[0104] The specific usage method and working principle are as follows: When machining external threads, the two first electric push rods 902 drive the support rollers 904 to move through the connecting seat 903, so that the support rollers 904 are in contact with one side of the machining grinding wheel 5. Since the machining grinding wheel 5 can be adjusted at the corresponding angle, in this solution, by adjusting the travel of the first electric push rods 902, in conjunction with the curved surface of the support rollers 904, the contact and support of the machining grinding wheel 5 can always be guaranteed. During the feeding process of shaft parts, pressure will be generated on the side of the machining grinding wheel 5. Through the contact and support of the side of the support rollers 904, a corresponding support force can be generated to offset it, thereby avoiding damage to the machining grinding wheel 5 due to excessive force generated by the feeding of shaft parts.
[0105] When the grinding wheel needs to be dressed, the second slide table drives the dressing wheel 7 to dress the curved edge of the grinding wheel 5. However, after this dressing, the side of the grinding wheel 5 is not flat enough. When the grinding wheel 5 cuts and grinds shaft parts, the resulting thread groove is not flat and uniform.
[0106] like Figure 10 As shown, after the edge of the grinding wheel 5 is finished, the operator extends the second electric push rod 908 to drive the lower moving circular plate 906 to move towards the length center of the support roller 904. The moving circular plate 906 drives the traction rope 911 on the right to move. After being guided by the steering wheel 912 and the guide wheel 910, the traction rope 911 drives the upper moving circular plate 906 to move synchronously towards the length center of the support roller 904, so that the two moving circular plates 906 move closer to each other. The two moving circular plates 906 drive the outer peripheral connecting rod 909 to rotate. The connecting rod 909 drives the grinding block 905 to move away from the axis of the support roller 904, so that the grinding block 905 slides out of the through groove.
[0107] Subsequently, the first electric push rod 902 drives the support roller 904 to move towards the machining wheel 5 through the connecting seat 903, and causes the grinding block 905 to grind one side of the machining wheel 5, making the side of the machining wheel 5 flat and smooth, thereby improving the accuracy of thread machining.
[0108] After the grinding wheel 5 is finished, the second electric push rod 908 is shortened, which drives the lower movable circular plate 906 to move away from the length center of the support roller 904. This movable circular plate 906 drives the left traction rope 911 to move, and after being guided by the steering wheel 912 and the guide wheel 910, it drives the upper movable circular plate 906 to move synchronously away from the length center of the support roller 904, so that the two movable circular plates 906 move away from each other. The two movable circular plates 906 drive multiple connecting rods 909 to rotate and reset, and the connecting rods 909 drive the grinding block 905 to slide back to its original position.
[0109] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A thread grinding machine, comprising a connecting plate (3), a machining base (1), a machining wheel (5), and a clamping mechanism (4), wherein the clamping mechanism (4) is disposed on one side of the top of the connecting plate (3) and is used to clamp one end of a shaft-type part, characterized in that, A stabilizing component (8) is provided on the top of the connecting plate (3); The stabilizing component (8) includes a movable frame (801), a movable mechanism is provided at the bottom of the movable frame (801), the movable mechanism is provided at the top of the connecting plate (3), a rotating ring (802) is rotatably connected inside the movable frame (801), a plurality of movable plates (817) capable of synchronous radial movement are provided inside the rotating ring (802), and the plurality of movable plates (817) are arranged in a circumferential array. A plurality of contact wheels (818) arranged in a linear array are provided on one side of the movable plate (817) to prevent the swinging phenomenon that occurs when the shaft parts rotate. A support component (9) is provided on one side of the movable frame (801), and the support component (9) includes: Connecting side plate (901), connected to one side of the movable frame (801); Two first electric actuators (902) are symmetrically connected to one side of the connecting side plate (901), and the output ends of the two first electric actuators (902) are connected to the same connecting seat (903). The support roller (904) is rotatably connected to the connecting seat (903). The support roller (904) has an inner cavity, and the surface of the support roller (904) has a plurality of through grooves arranged in a circumferential array, which are connected to the inner cavity. Multiple grinding blocks (905) are slidably connected within the through groove; Two movable circular plates (906) are slidably connected in the inner cavity, and the two movable circular plates (906) can move relative to each other; Two sets of connecting rods (909), each set of connecting rods (909) consists of multiple connecting rods (909) arranged in a circumferential array. One end of the connecting rod (909) is hinged to the outer periphery of the movable circular plate (906), and the other end of the connecting rod (909) is hinged to one side of the grinding block (905). Two sets of limiting slot seats (907), each set of limiting slot seats (907) is composed of multiple limiting slot seats (907) arranged in a circumferential array, the limiting slot seats (907) are connected to the inner cavity, and the grinding block (905) is slidably connected to the limiting slot seats (907); The second electric push rod (908) is connected inside the cavity, and the output end of the second electric push rod (908) is connected to one side of one of the movable circular plates (906); Two traction ropes (911) are centrally symmetrically arranged between two movable circular plates (906), and the two ends of the traction ropes (911) are respectively connected to the two movable circular plates (906); Two steering wheels (912) are centrally symmetrically arranged in the inner cavity, and the steering wheels (912) are connected to the inside of the inner cavity; Two guide wheels (910) are centrally symmetrically arranged in the inner cavity. The guide wheels (910) are connected to the inside of the inner cavity. The traction rope (911) passes through the steering wheel (912) and the guide wheel (910) in sequence. During external thread machining, the two first electric push rods (902) drive the support roller (904) to move through the connecting seat (903), so that the support roller (904) fits against one side of the machining wheel (5) to support the machining wheel (5). After the curved edge of the machining wheel (5) is finished, the connecting rod (909) drives the grinding block (905) to move away from the axis of the support roller (904), so that the grinding block (905) slides out of the through groove and grinds one side of the machining wheel (5). When the grinding wheel (5) is finished, the connecting rod (909) drives the grinding block (905) to slide back to its original position.
2. A thread grinding machine according to claim 1, characterized in that, The stabilizing component (8) also includes: Multiple adjusting screws (814) are arranged in a circular array along the axis of the rotating ring (802). The rotating ring (802) has a cavity inside. One end of the adjusting screw (814) extends into the cavity and is connected to a second bevel gear (813). The outer surface of the end of the adjusting screw (814) away from the second bevel gear (813) is connected to a second screw seat (815). The other end of the second screw seat (815) is connected to a moving plate (817). Multiple transmission gears (810) are arranged in a circular array along the axis of the rotating ring (802). One side of each transmission gear (810) is connected to a rotating shaft, and the other end of the rotating shaft extends into the cavity and is connected to a first bevel gear (812). The first bevel gear (812) meshes with a second bevel gear (813). Rotary gear ring (809) is rotatably connected to one side of rotating ring (802), and multiple transmission gears (810) mesh with rotating gear ring (809).
3. A thread grinding machine according to claim 2, characterized in that, The stabilizing component (8) also includes: An outer ring (808) is connected to the outside of the rotating ring (802), and a plurality of limiting holes are provided on one side of the outer ring (808) in a circular array; A threaded seat is connected to the outside of the rotating gear ring (809). The threaded seat is internally threaded with a limiting bolt (811), which can engage with the limiting hole.
4. A thread grinding machine according to claim 2, characterized in that, The stabilizing component (8) also includes: Multiple sets of telescopic rods (816) are provided, and each set of telescopic rods (816) consists of two telescopic rods (816). The two telescopic rods (816) in the same set are symmetrically arranged on both sides of the second lead screw seat (815). One end of the telescopic rod (816) is connected to one side of the moving plate (817), and the other end of the telescopic rod (816) is connected to the inner side of the rotating ring (802).
5. A thread grinding machine according to claim 1, characterized in that, The moving mechanism includes: The movable lead screw (806) has a movable groove on the top of the connecting plate (3), and the movable lead screw (806) is rotatably connected in the movable groove; The drive motor (803) is fixedly installed on one side of the connecting plate (3) by the mounting plate, and one end of the moving screw (806) extends to the outside of the moving groove and is connected to one end of the output shaft of the drive motor (803); The first lead screw seat (807) is connected to the bottom of the movable frame (801), and the first lead screw seat (807) is connected to the movable lead screw (806) in a transmission connection. The first lead screw seat (807) is slidably connected in the movable groove. Two sliders (805) are connected to the movable frame (801) via a connecting rod. The connecting plate (3) has grooves (804) on both sides, and the sliders (805) are slidably connected in the grooves (804).
6. A thread grinding machine according to claim 1, characterized in that, Also includes: The first slide (2) is located on one side of the top of the processing base (1), and the connecting plate (3) is connected to the top of the first slide (2); The bottom of the grinding wheel (5) is provided with an adjustment base (6), which is connected to the top of the grinding base (1).
7. A thread grinding machine according to claim 1, characterized in that, Also includes: Dressing wheel (7), the bottom of the dressing wheel (7) is provided with a second slide, the second slide is provided on the top of the processing base (1).
Citation Information
Patent Citations
An external thread machining device
CN113199094B
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