Self-adaptive grinding device for precision mechanical part machining

Abstract

The invention discloses a self-adaptive grinding device for precision mechanical part machining, and relates to the technical field of pipe fitting inner surface grinding, the self-adaptive grinding device comprises a grinding base and a control device, the grinding base is provided with a bearing part and a feeding mechanism, and the bearing part is provided with a lifting part; the position adjusting part is arranged on the grinding base, the positioning part and the clamping mechanism are arranged on the lifting part, the two inner inserting blocks are symmetrically arranged on the feeding mechanism, the adjusting blocks are arranged on the two inner inserting blocks in a sliding mode, and the two grinding parts are arranged on the two adjusting blocks. According to the device, the grinding part is arranged, so that the device can be suitable for different grinding working conditions of the inner surface of a to-be-ground pipe fitting, and the situation that when the grinding tool bit conducts grinding machining on the inner surface of the to-be-ground pipe fitting, the grinding tool bit meets a protrusion, and consequently the grinding tool bit is damaged is avoided; and therefore, the grinding application range of the device is widened to a certain extent, and the service life of the grinding tool bit is also prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of inner surface grinding of pipe fittings, and particularly to an adaptive grinding device for processing precision mechanical components. Background Art

[0002] In the field of precision mechanical component processing, high-quality grinding of the inner surface of pipe fittings is crucial. As a key component of many precision mechanical equipment, the accuracy and surface finish of the inner surface of pipe fittings directly affect the performance, stability, and service life of the entire mechanical system. For example, in industries such as aerospace and high-end medical devices, even minor defects on the inner surface of pipe fittings can cause serious consequences.

[0003] Currently, the commonly used inner surface grinding devices for pipe fittings on the market mainly include traditional fixed grinding devices and simple rotary grinding devices. The fixed grinding device is usually equipped with grinding tool heads of fixed specifications and processes the inner surface of the pipe fitting through a fixed grinding path. The rotary grinding device uses a motor to drive the grinding tool to rotate, thereby realizing the grinding of the inner surface of the pipe fitting. However, these existing grinding devices expose many problems in practical applications. When facing complex and diverse inner surface grinding conditions of pipe fittings, they lack the ability of adaptive adjustment. For example, when there are protrusions on the inner surface of the pipe fitting, the existing grinding devices are difficult to effectively handle. Due to the lack of an adaptive adjustment mechanism for the tool heads, when encountering the protrusion part, the tool heads will bear a huge instantaneous impact force, which not only easily leads to the damage of the grinding tool heads, increasing the processing cost, but also the frequent replacement of the tool heads will affect the processing efficiency. At the same time, the damage of the tool heads will cause the grinding process to be unable to proceed continuously and stably, resulting in a serious decline in the grinding quality of the inner surface of the pipe fitting and unable to meet the strict requirements of precision mechanical components for processing accuracy and surface quality. Therefore, improvement is urgently needed. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an adaptive grinding device for processing precision mechanical components, aiming to solve the above technical problems.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An adaptive grinding device for processing precision mechanical components, including a grinding base and a control device arranged on the grinding base. The grinding base is provided with an adjustment groove, and a bearing part is arranged on the grinding base. An elevating part electrically connected to the control device is arranged on the bearing part. It further includes:

[0007] An adjustment part, arranged on the grinding base and electrically connected to the control device, for adjusting the position of the bearing part on the grinding base;

[0008] The positioning part is arranged on the lifting part and is electrically connected to the control device. The positioning part is used to position the axis position of the pipe fitting to be ground.

[0009] The clamping mechanism is arranged on the lifting part and is electrically connected to the control device. The clamping mechanism is used to clamp and fix the pipe fittings to be ground with different pipe diameters.

[0010] The feeding mechanism is arranged on the grinding base and is electrically connected to the control device.

[0011] There are two inner insertion blocks, and the two inner insertion blocks are symmetrically arranged on the feeding mechanism. Built-in grooves are formed on the opposite side surfaces of the two inner insertion blocks. A reinforcement part is arranged between the two inner insertion blocks. Limiting grooves are formed on the two inner insertion blocks, and containing grooves are formed on the two inner insertion blocks.

[0012] There are two adjusting blocks, and the two adjusting blocks are respectively slidably arranged on the two inner insertion blocks. Limiting blocks fixedly arranged on the adjusting blocks are slidably connected with the limiting grooves.

[0013] The electric push rod is arranged in the containing groove and is electrically connected to the control device. One end of the electric push rod close to the adjusting block is fixedly connected with the adjusting block.

[0014] There are two groups of grinding parts, and the two groups of grinding parts are respectively arranged on the two adjusting blocks. The grinding parts are used to grind the inner surface of the pipe fitting.

[0015] Preferably, the bearing part includes:

[0016] The position-adjusting block is arranged in the position-adjusting groove and is slidably connected with the grinding base.

[0017] The bearing block is fixedly arranged on the position-adjusting block. A lifting groove is formed in the middle of the surface of the bearing block away from the grinding base, and a plurality of symmetrically arranged guiding grooves are formed on the surface of the bearing block away from the grinding base.

[0018] Preferably, the position-adjusting part includes:

[0019] The first motor is fixedly arranged on the grinding base and is electrically connected to the control device.

[0020] The position-adjusting screw rod is arranged in the position-adjusting groove, and one end of the position-adjusting screw rod close to the first motor is fixedly connected with the output end of the first motor. The position-adjusting screw rod is threadedly connected with the position-adjusting block.

[0021] Preferably, the lifting part includes:

[0022] The hydraulic push rod is arranged in the lifting groove and is electrically connected to the control device. The hydraulic push rod is fixedly connected with the bearing block.

[0023] There are a plurality of guiding rods, and the plurality of guiding rods are respectively arranged in the plurality of guiding grooves. The guiding rods are slidably connected with the bearing block.

[0024] The lifting base is fixedly arranged at one end of the guiding rod away from the grinding base, and the lifting base is fixedly connected with the hydraulic push rod.

[0025] Preferably, the positioning part includes:

[0026] The arch plate is fixedly arranged on the lifting base;

[0027] The distance measuring sensor is arranged on the surface of the arch plate close to the grinding base. The distance measuring sensor is electrically connected with the control device, and the distance measuring sensor is used for measuring the distance between the top of the pipe fitting to be ground and the surface of the arch plate close to the grinding base.

[0028] Preferably, the clamping mechanism includes:

[0029] The clamping base is fixedly arranged on the lifting base. A main clamping groove is formed on the surface of the clamping base away from the grinding base, and two symmetrical auxiliary grooves are formed on both sides of the clamping base. A through groove penetrating the clamping base is formed in the auxiliary groove;

[0030] The main motor is fixedly arranged on the clamping base and is electrically connected with the control device;

[0031] The main double-headed screw is rotatably arranged in the main clamping groove, and one end of the main double-headed screw close to the main motor is fixedly connected with the output end of the main motor. The thread directions on both sides of the main double-headed screw are opposite;

[0032] There are two main clamping plates, and the two main clamping plates are symmetrically arranged on the clamping base. The main clamping plates are threadedly connected with the main double-headed screw;

[0033] There are two groups of auxiliary clamping parts, and the two groups of auxiliary clamping parts are symmetrically arranged on the clamping base.

[0034] Preferably, the auxiliary clamping part includes:

[0035] The electric push shaft is fixedly arranged in the auxiliary groove and is fixedly connected with the clamping base. The electric push shaft is electrically connected with the control device;

[0036] The push block is arranged in the auxiliary groove and is slidably connected with the clamping base. The push block is fixedly connected with the electric push shaft;

[0037] The connecting block is arranged in the auxiliary groove and is slidably connected with the through groove. One end of the connecting block close to the push block is fixedly connected with the push block;

[0038] The auxiliary base is fixedly arranged at one end of the connecting block away from the push block. A secondary clamping groove is formed on the surface of the auxiliary base away from the grinding base;

[0039] The secondary motor is fixedly arranged on the auxiliary base and is electrically connected with the control device;

[0040] The auxiliary double-headed screw is rotatably arranged in the auxiliary clamping groove, and one end of the auxiliary double-headed screw close to the auxiliary motor is fixedly connected to the output end of the auxiliary motor. The thread directions on both sides of the auxiliary double-headed screw are opposite;

[0041] There are two auxiliary clamping plates, and the two auxiliary clamping plates are symmetrically arranged on the auxiliary base. The auxiliary clamping plates are threadedly connected to the auxiliary double-headed screw.

[0042] Preferably, the feeding mechanism includes:

[0043] The vertical plate is fixedly arranged on the grinding base;

[0044] The second motor is fixedly arranged on the vertical plate and is electrically connected to the control device;

[0045] The driving shaft is rotatably arranged on the vertical plate, and one end of the driving shaft close to the second motor is fixedly connected to the output end of the second motor;

[0046] The rotating disk is fixedly arranged at the end of the driving shaft far from the second motor. A feeding groove is formed on the surface of the rotating disk far from the vertical plate;

[0047] The third motor is fixedly arranged on the rotating disk and is electrically connected to the control device;

[0048] There are multiple counterweight blocks, and the multiple counterweight blocks are arranged on the rotating disk. The counterweight blocks are used to make the mass distribution of the rotating disk uniform;

[0049] The feeding double-headed screw is rotatably arranged in the feeding groove, and one end of the feeding double-headed screw close to the third motor is fixedly connected to the output end of the third motor. The thread directions on both sides of the feeding double-headed screw are opposite;

[0050] There are two feeding carrier blocks, and the two feeding carrier blocks are symmetrically arranged in the feeding groove respectively. The two feeding carrier blocks are threadedly connected to the feeding double-headed screw, and the surface of the feeding carrier block close to the inner insert block is fixedly connected to the inner insert block.

[0051] Preferably, the reinforcing part includes:

[0052] The fixing rod is arranged in the built-in groove and is fixedly connected to the inner insert block;

[0053] The sliding block is slidably arranged in the built-in groove and is slidably connected to the fixing rod, and there are two symmetric sliding blocks on the fixing rod;

[0054] There are two cross plates, and the middle parts of the two cross plates are rotatably connected. The end parts of the two cross plates are respectively rotatably connected to the adjacent sliding blocks.

[0055] Preferably, the grinding part includes:

[0056] The adjusting groove is formed in the adjusting block;

[0057] An internal spring is disposed within the adjustment groove, and one end of the internal spring is fixedly connected to the adjustment block. The internal spring is always in a compressed state.

[0058] A stop block is disposed within the adjustment groove and is slidably connected to the adjustment block. The stop block is fixedly connected to the internal spring.

[0059] A connecting member is fixedly disposed on the surface of the stop block away from the internal spring, and the connecting member is slidably connected to the adjustment block.

[0060] A grinding cutter head is disposed on the connecting member, and the grinding cutter head is detachably and fixedly connected to the connecting member.

[0061] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0062] 1. By providing a grinding part in this device, the device can be applicable to different grinding working conditions on the inner surface of the pipe fittings to be ground, thereby avoiding damage to the grinding cutter head when the grinding cutter head encounters protrusions during the grinding process of the inner surface of the pipe fittings to be ground, and to a certain extent improving the applicable range of the grinding process of this device and also extending the service life of the grinding cutter head.

[0063] 2. By providing a lifting part and a positioning part in this device, the device can adjust the height of the axes of pipe fittings to be ground with different diameters, so that the axes of pipe fittings to be ground with different diameters can all coincide with the axis of the rotating disk, thereby completing the positioning of pipe fittings to be ground with different diameters, and while increasing the applicable range of this device, also improving the grinding accuracy of subsequent pipe fittings to be ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings without creative efforts based on these drawings.

[0065] Figure 1 Shows a three-dimensional structural schematic diagram of an adaptive grinding device for precision mechanical component processing.

[0066] Figure 2 Shows a front view of an adaptive grinding device for precision mechanical component processing.

[0067] Figure 3 Shows Figure 2 The A-A cross-sectional view in

[0068] Figure 4 Shows Figure 2The sectional view taken along line B-B therein.

[0069] Figure 5 shows Figure 4 the enlarged schematic view of the partial structure at position A in

[0070] Figure 6 the right view of an adaptive grinding device for machining precision mechanical components.

[0071] Figure 7 the top view of an adaptive grinding device for machining precision mechanical components.

[0072] Figure 8 shows Figure 7 the exploded view of the partial structure in

[0073] Figure 9 the exploded view of the partial structure in an adaptive grinding device for machining precision mechanical components.

[0074] Figure 10 shows Figure 9 the enlarged schematic view of the partial structure at position B in

[0075] Legend:

[0076] 1. Grinding base; 2. Control device; 3. Adjustment groove; 4. Inner insert block; 5. Built-in groove; 6. Limiting groove; 7. Inner containing groove; 8. Adjusting block; 9. Limiting block; 10. Electric push rod; 11. Adjustment block; 12. Carrying block; 13. Lifting groove; 14. Guide groove; 15. First motor; 16. Adjusting screw; 17. Hydraulic push rod; 18. Guide rod; 19. Lifting base; 20. Arch plate; 21. Distance measuring sensor; 22. Clamping base; 23. Main clamping groove; 24. Auxiliary groove; 25. Through groove; 26. Main motor; 27. Main double-headed screw; 28. Main clamping plate; 29. Electric push shaft; 30. Pushing block; 31. Connecting block; 32. Auxiliary base; 33. Sub-clamping groove; 34. Sub-motor; 35. Sub double-headed screw; 36. Sub-clamping plate; 37. Vertical plate; 38. Second motor; 39. Driving shaft; 40. Rotating disc; 41. Feeding groove; 42. Third motor; 43. Counterweight block; 44. Feeding double-headed screw; 45. Feeding carrier block; 46. Fixed rod; 47. Sliding block; 48. Cross plate; 49. Adjusting groove; 50. Built-in spring; 51. Block; 52. Connecting piece; 53. Grinding cutter head. Detailed implementation manners

[0077] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0078] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0079] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0080] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "plurality" is two or more unless otherwise specifically defined.

[0081] Refer to Figures 1 to 10 , and further illustrate an embodiment of an adaptive grinding device for precision mechanical component processing of the present invention.

[0082] An adaptive grinding device for precision mechanical component processing includes a grinding base 1 and a control device 2 disposed on the grinding base 1. An adjustment groove 3 is formed on the grinding base 1, and a bearing portion is disposed on the grinding base 1. The bearing portion includes:

[0083] An adjustment block 11 is disposed in the adjustment groove 3 and is slidably connected to the grinding base 1;

[0084] The bearing block 12 is fixedly arranged on the position adjusting block 11. In the middle of the surface of the bearing block 12 away from the grinding base 1, a lifting groove 13 is opened, and a plurality of symmetrically arranged guiding grooves 14 are opened on the surface of the bearing block 12 away from the grinding base 1; on the bearing part, a lifting part electrically connected to the control device 2 is arranged. The lifting part includes:

[0085] The hydraulic push rod 17 is arranged in the lifting groove 13 and is electrically connected to the control device 2. The hydraulic push rod 17 is fixedly connected to the bearing block 12;

[0086] There are a plurality of guiding rods 18, and the plurality of guiding rods 18 are respectively arranged in the plurality of guiding grooves 14. The guiding rods 18 are slidably connected to the bearing block 12;

[0087] The lifting base 19 is fixedly arranged at one end of the guiding rod 18 away from the grinding base 1. The lifting base 19 is fixedly connected to the hydraulic push rod 17.

[0088] Refer to Figures 1 to 10 , an adaptive grinding device for precision mechanical component processing further includes:

[0089] The position adjusting part is arranged on the grinding base 1 and is electrically connected to the control device 2. The position adjusting part is used for adjusting the position of the bearing part on the grinding base 1. The position adjusting part includes:

[0090] The first motor 15 is fixedly arranged on the grinding base 1 and is electrically connected to the control device 2;

[0091] The position adjusting screw rod 16 is arranged in the position adjusting groove 3, and one end of the position adjusting screw rod 16 close to the first motor 15 is fixedly connected to the output end of the first motor 15. The position adjusting screw rod 16 is threadedly connected to the position adjusting block 11.

[0092] The positioning part is arranged on the lifting part and is electrically connected to the control device 2. The positioning part is used for positioning the axis position of the pipe fitting to be ground. The positioning part includes:

[0093] The arch plate 20 is fixedly arranged on the lifting base 19;

[0094] The distance measuring sensor 21 is arranged on the surface of the arch plate 20 close to the grinding base 1. The distance measuring sensor 21 is electrically connected to the control device 2. The distance measuring sensor 21 is used for measuring the distance between the top of the pipe fitting to be ground and the surface of the arch plate 20 close to the grinding base 1.

[0095] Refer to Figures 1 to 10, after the pipe fitting to be ground is clamped and fixed, the distance measuring sensor 21 provided on the arch plate 20 measures the distance between the top of the pipe fitting to be ground and the surface of the arch plate 20 close to the grinding base 1, and then adjusts the lifting distance of the axis of the pipe fitting to be ground according to the following formula, Y = (X + R) - D. If (X + R) - D is less than zero, it indicates that the axis of the pipe fitting to be ground is above the axis of the rotating disk 40, and the height of the axis of the pipe fitting to be ground is lowered by Y through the control device 2; if (X + R) - D is greater than zero, it indicates that the axis of the pipe fitting to be ground is below the axis of the rotating disk 40, and the height of the axis of the pipe fitting to be ground is raised by Y through the control device 2. The specific process of the control device 2 controlling the height of the axis of the pipe fitting to be ground is as follows. The control device 2 controls the hydraulic push rod 17 to start, so that the lifting base 19 fixedly connected to the hydraulic push rod 17 rises and falls, and then the clamping base 22 provided on the lifting base 19 rises and falls, so that the main clamping plate 28 provided on the clamping base 22 rises and falls, and the pipe fitting to be ground clamped and fixed by the main clamping plate 28 rises and falls until the distance between the axis of the pipe fitting to be ground and the surface of the arch plate 20 close to the grinding base 1 is equal to the distance between the axis of the rotating disk 40 and the surface of the arch plate 20 close to the grinding base 1, thus completing the height adjustment of the pipe fitting to be ground;

[0096] By providing a lifting part and a positioning part, this device can adjust the height of the axis of the pipe fitting to be ground with different pipe diameters, so that the axes of the pipe fittings to be ground with different pipe diameters can all coincide with the axis of the rotating disk 40, thus completing the positioning of the pipe fittings to be ground with different pipe diameters, while increasing the applicable range of this device and also improving the grinding accuracy of the subsequent pipe fittings to be ground.

[0097] Refer to Figures 1 to 10 , a clamping mechanism, is provided on the lifting part and is electrically connected to the control device 2. The clamping mechanism is used to clamp and fix the pipe fittings to be ground with different pipe diameters. The clamping mechanism includes:

[0098] A clamping base 22 is fixedly provided on the lifting base 19. A main clamping groove 23 is formed on the surface of the clamping base 22 away from the grinding base 1. Two symmetrical auxiliary grooves 24 are formed on both sides of the clamping base 22, and a through groove 25 penetrating the clamping base 22 is formed in the auxiliary groove 24;

[0099] A main motor 26 is fixedly provided on the clamping base 22 and is electrically connected to the control device 2;

[0100] A main double-headed screw 27 is rotatably provided in the main clamping groove 23, and one end of the main double-headed screw 27 close to the main motor 26 is fixedly connected to the output end of the main motor 26. The thread directions on both sides of the main double-headed screw 27 are opposite;

[0101] The main clamping plates 28, there are two of them, and the two main clamping plates 28 are symmetrically arranged on the clamping base 22, and the main clamping plates 28 are threadedly connected to the main double-headed screw 27;

[0102] During operation, place the pipe fitting to be ground between the two main clamping plates 28 on the clamping base 22, then adjust the position of the pipe fitting to be ground so that the middle part of the pipe fitting to be ground is directly above the main clamping groove 23, and then start the main motor 26 through the control device 2, so that the main double-headed screw 27 fixedly connected to the output end of the main motor 26 rotates. Through the threaded transmission cooperation between the main double-headed screw 27 and the two main clamping plates 28, the two main clamping plates 28 approach each other until the two main clamping plates 28 are attached to the pipe fitting to be ground and apply corresponding pressure to the pipe fitting to be ground, thereby clamping and fixing the middle part of the pipe fitting to be ground;

[0103] The auxiliary clamping parts, there are two groups of them, and the two groups of auxiliary clamping parts are symmetrically arranged on the clamping base 22. The auxiliary clamping parts include:

[0104] The electric push shaft 29 is fixedly arranged in the auxiliary groove 24 and fixedly connected to the clamping base 22. The electric push shaft 29 is electrically connected to the control device 2;

[0105] The push block 30 is arranged in the auxiliary groove 24 and slidably connected to the clamping base 22. The push block 30 is fixedly connected to the electric push shaft 29;

[0106] The connecting block 31 is arranged in the auxiliary groove 24 and slidably connected to the through groove 25. One end of the connecting block 31 close to the push block 30 is fixedly connected to the push block 30;

[0107] The auxiliary base 32 is fixedly arranged at one end of the connecting block 31 away from the push block 30. A secondary clamping groove 33 is formed on the surface of the auxiliary base 32 away from the grinding base 1;

[0108] The secondary motor 34 is fixedly arranged on the auxiliary base 32 and electrically connected to the control device 2;

[0109] The secondary double-headed screw 35 is rotatably arranged in the secondary clamping groove 33, and one end of the secondary double-headed screw 35 close to the secondary motor 34 is fixedly connected to the output end of the secondary motor 34. The thread directions on both sides of the secondary double-headed screw 35 are opposite;

[0110] The secondary clamping plates 36, there are two of them, and the two secondary clamping plates 36 are symmetrically arranged on the auxiliary base 32. The secondary clamping plates 36 are threadedly connected to the secondary double-headed screw 35.

[0111] Refer to Figures 1 to 10, then adjust the distance between the two side auxiliary clamping plates 36 and the main clamping plate 28 according to the length of the pipe fitting to be ground. The specific process is as follows. The electric push shafts 29 in each auxiliary groove 24 are controlled by the control device 2 to start synchronously, so that the push blocks 30 fixedly connected to the electric push shafts 29 move away from the clamping base 22. Further, the connecting blocks 31 fixedly connected to the push blocks 30 push the auxiliary base 32 to move away from the clamping base 22, thereby driving the auxiliary clamping plates 36 slidably connected to the auxiliary base 32 to move away from the clamping base 22 until the two side auxiliary clamping plates 36 and the main clamping plate 28 trisect the pipe fitting to be ground, thus realizing the adjustment of the distance between the two side auxiliary clamping plates 36 and the main clamping plate 28;

[0112] By providing a clamping mechanism, the device can clamp and fix the pipe fitting to be ground. At the same time, the device can also adjust the positions of the two side auxiliary clamping parts according to the length of the pipe fitting to be ground, so that the device can have a good clamping and fixing effect on pipe fittings to be ground with different lengths, avoiding the subsequent shaking of the pipe fitting to be ground during the grinding process, which reduces the grinding accuracy.

[0113] Refer to Figures 1 to 10 , a feeding mechanism, is arranged on the grinding base 1 and is electrically connected to the control device 2. The feeding mechanism includes:

[0114] A vertical plate 37 is fixedly arranged on the grinding base 1;

[0115] A second motor 38 is fixedly arranged on the vertical plate 37 and is electrically connected to the control device 2;

[0116] A driving shaft 39 is rotatably arranged on the vertical plate 37, and one end of the driving shaft 39 close to the second motor 38 is fixedly connected to the output end of the second motor 38;

[0117] A rotating disk 40 is fixedly arranged at one end of the driving shaft 39 away from the second motor 38. A feeding groove 41 is formed on the surface of the rotating disk 40 away from the vertical plate 37;

[0118] A third motor 42 is fixedly arranged on the rotating disk 40 and is electrically connected to the control device 2;

[0119] There are multiple counterweight blocks 43, and the multiple counterweight blocks 43 are arranged on the rotating disk 40. The counterweight blocks 43 are used to make the mass distribution of the rotating disk 40 uniform;

[0120] A feeding double-headed screw 44 is rotatably arranged in the feeding groove 41, and one end of the feeding double-headed screw 44 close to the third motor 42 is fixedly connected to the output end of the third motor 42. The thread directions on both sides of the feeding double-headed screw 44 are opposite;

[0121] There are two feed carrier blocks 45, and the two feed carrier blocks 45 are symmetrically arranged in the feed groove 41 respectively. The two feed carrier blocks 45 are threadedly connected to the feed double-headed screw 44, and the surface of the feed carrier block 45 close to the insertion block 4 is fixedly connected to the insertion block 4.

[0122] Refer to Figures 1 to 10 , and then adjust the distance between the grinding heads 53 in the two grinding parts according to the pipe diameter of the pipe to be ground. The specific process is as follows: The third motor 42 is started by the control device 2, so that the feed double-headed screw 44 fixedly connected to the output end of the third motor 42 rotates. Through the threaded transmission cooperation between the feed double-headed screw 44 and the two feed carrier blocks 45, the two feed carrier blocks 45 approach or move away from each other, and then the two insertion blocks 4 respectively arranged on the two feed carrier blocks 45 approach or move away from each other, so that the two adjusting blocks 8 respectively arranged on the two insertion blocks 4 approach the inner surface of the pipe to be ground, and then the two grinding parts respectively arranged on the two adjusting blocks 8 approach the inner surface of the pipe to be ground, so that the grinding heads 53 in the two grinding parts approach the inner surface of the pipe to be ground, and the grinding heads 53 are directly attached to the inner surface of the pipe to be ground and apply corresponding pressure to the inner surface;

[0123] By setting a feed mechanism, the device can adjust the distance between the grinding heads 53 in the two grinding parts according to the pipe diameter of the pipe to be ground, and then the device can grind pipes to be ground with different pipe diameters.

[0124] There are two insertion blocks 4, and the two insertion blocks 4 are symmetrically arranged on the feed mechanism. Built-in grooves 5 are opened on the opposite side surfaces of the two insertion blocks 4. A reinforcement part is arranged between the two insertion blocks 4. Limiting grooves 6 are opened on the two insertion blocks 4, and containing grooves 7 are opened on the two insertion blocks 4. The reinforcement part includes:

[0125] A fixed rod 46 is arranged in the built-in groove 5 and fixedly connected to the insertion block 4;

[0126] A sliding block 47 is slidably arranged in the built-in groove 5 and slidably connected to the fixed rod 46, and two symmetric sliding blocks 47 are arranged on the fixed rod 46;

[0127] There are two cross plates 48, and the middle parts of the two cross plates 48 are rotatably connected. The end parts of the two cross plates 48 are respectively rotatably connected to the adjacent sliding blocks 47.

[0128] It should be noted that by providing the reinforcement portion, when the two insertion blocks 4 move away from or close to each other, the cross plates 48 provided on the sliding blocks 47 rotate relative to each other, so that the cross plates 48 between the two insertion blocks 4 always provide a supporting force on the sliding blocks 47, and thus a supporting force on the insertion blocks 4 on both sides, thereby preventing the two insertion blocks 4 from deforming when rotating around the axis of the rotating disk 40, and to a certain extent improving the grinding accuracy of the present device for the pipe fittings to be ground.

[0129] There are two adjusting blocks 8, and the two adjusting blocks 8 are respectively slidably arranged on the two insertion blocks 4. A limiting block 9 fixedly arranged on the adjusting block 8 is slidably connected with the limiting groove 6;

[0130] It should be noted that by providing the limiting block 9, when the adjusting block 8 slides on the insertion block 4, the limiting block 9 also slides in the limiting groove 6. By the limitation of the limiting groove 6 on the limiting block 9, the sliding of the adjusting block 8 is prevented from deviating, and to a certain extent, the accuracy of the sliding of the grinding portion provided on the adjusting block 8 is ensured.

[0131] The electric push rod 10 is arranged in the inner containing groove 7 and is electrically connected with the control device 2. One end of the electric push rod 10 close to the adjusting block 8 is fixedly connected with the adjusting block 8;

[0132] By providing the electric push rod 10, the staff can control the electric push rod 10 to start through the control device 2, so that the adjusting block 8 fixedly connected with the electric push rod 10 slides in the adjustment groove 3, and then the grinding portion provided on the adjusting block 8 moves, so as to adjust the grinding position of the grinding cutter head 53, so that the grinding cutter head 53 can grind different areas on the inner surface of the pipe fitting to be ground.

[0133] Refer to Figures 1 to 10 , there are two sets of grinding portions, and the two sets of grinding portions are respectively arranged on the two adjusting blocks 8. The grinding portion is used for grinding the inner surface of the pipe fitting. The grinding portion includes:

[0134] An adjustment groove 49 is opened in the adjusting block 8;

[0135] A built-in spring 50 is arranged in the adjustment groove 49, and one end of the built-in spring 50 is fixedly connected with the adjusting block 8. The built-in spring 50 is always in a compressed state;

[0136] A stop block 51 is arranged in the adjustment groove 49 and is slidably connected with the adjusting block 8. The stop block 51 is fixedly connected with the built-in spring 50;

[0137] A connecting member 52 is fixedly arranged on the surface of the stop block 51 away from the built-in spring 50, and the connecting member 52 is slidably connected with the adjusting block 8;

[0138] The grinding cutter head 53 is arranged on the connecting piece 52, and the grinding cutter head 53 is detachably and fixedly connected to the connecting piece 52.

[0139] After the grinding cutter head 53 is attached to the inner surface of the pipe fitting to be ground, the control device 2 controls the second motor 38 to start, so that the drive shaft 39 fixedly connected to the output end of the second motor 38 rotates, driving the rotating disk 40 fixedly connected to the drive shaft 39 to rotate, causing the two feed carriers 45 arranged on the rotating disk 40 to rotate around the axis of the rotating disk 40, so that the inner insert block 4 fixedly connected to the feed carrier 45 rotates around the axis of the rotating disk 40, and further causing the adjusting block 8 slidably arranged on the inner insert block 4 to rotate around the axis of the rotating disk 40, so that the grinding part arranged on the adjusting block 8 rotates around the axis of the rotating disk 40, and further causing the grinding cutter head 53 in the grinding part to rotate around the axis of the rotating disk 40, thereby grinding the inner surface of the pipe fitting to be ground;

[0140] It should be noted that when there are protrusions on the inner surface of the pipe fitting to be ground, the device is provided with a built-in spring 50. When the grinding cutter head 53 passes over the protrusion on the inner surface of the pipe fitting to be ground, the grinding cutter head 53 moves in the direction of the adjacent adjusting block 8, so that the connecting piece 52 fixedly connected to the grinding cutter head 53 moves in the direction of the adjacent adjusting block 8, and further causing the stop block 51 fixedly connected to the connecting piece 52 to slide in the adjusting groove 49, thereby compressing the built-in spring 50. After the grinding cutter head 53 passes over the protrusion on the inner surface of the pipe fitting to be ground, the compressed built-in spring 50 releases elastic potential energy, so that the stop block 51 drives the connecting piece 52 to move towards the inner surface of the pipe fitting to be ground, and further causing the grinding cutter head 53 fixedly connected to the connecting piece 52 to move towards the inner surface of the pipe fitting to be ground until the grinding cutter head 53 is attached to the inner surface of the pipe fitting to be ground again for grinding the inner surface of the pipe fitting to be ground;

[0141] The device is provided with a grinding part, so that the device can be suitable for different grinding conditions of the inner surface of the pipe fitting to be ground, thereby avoiding damage to the grinding cutter head 53 when the grinding cutter head 53 grinds the inner surface of the pipe fitting to be ground due to encountering protrusions, and to a certain extent improving the applicable range of the grinding process of the device and also extending the service life of the grinding cutter head 53.

[0142] Working principle: Refer to Figures 1 to 10, during operation, place the pipe fitting to be ground between the two main clamping plates 28 on the clamping base 22, and then adjust the position of the pipe fitting to be ground so that the middle part of the pipe fitting to be ground is directly above the main clamping groove 23. Then, start the main motor 26 through the control device 2, causing the main double-headed screw 27 fixedly connected to the output end of the main motor 26 to rotate. Through the threaded transmission cooperation between the main double-headed screw 27 and the two main clamping plates 28, the two main clamping plates 28 move closer to each other until the two main clamping plates 28 fit on the pipe fitting to be ground and apply corresponding pressure to the pipe fitting to be ground, thereby clamping and fixing the middle part of the pipe fitting to be ground;

[0143] Then, adjust the distance between the two side auxiliary clamping plates 36 and the main clamping plate 28 according to the length of the pipe fitting to be ground. The specific process is as follows: start the electric push shafts 29 in each auxiliary groove 24 synchronously through the control device 2, causing the push blocks 30 fixedly connected to the electric push shafts 29 to move away from the clamping base 22. Further, the connecting blocks 31 fixedly connected to the push blocks 30 push the auxiliary base 32 to move away from the clamping base 22, thereby driving the auxiliary clamping plates 36 slidably connected to the auxiliary base 32 to move away from the clamping base 22 until the two side auxiliary clamping plates 36 and the main clamping plate 28 trisect the pipe fitting to be ground, thus realizing the adjustment of the distance between the two side auxiliary clamping plates 36 and the main clamping plate 28;

[0144] After clamping and fixing the pipe fitting to be ground, the distance measuring sensor 21 provided on the arch plate 20 measures the distance between the top of the pipe fitting to be ground and the surface of the arch plate 20 close to the grinding base 1. Then, adjust the lifting distance of the axis of the pipe fitting to be ground according to the following formula: Y = (X + R) - D. If (X + R) - D is less than zero, it indicates that the axis of the pipe fitting to be ground is above the axis of the rotating disk 40. The control device 2 lowers the height of the axis of the pipe fitting to be ground by Y. If (X + R) - D is greater than zero, it indicates that the axis of the pipe fitting to be ground is below the axis of the rotating disk 40. The control device 2 raises the height of the axis of the pipe fitting to be ground by Y. The specific process of the control device 2 controlling the height of the axis of the pipe fitting to be ground is as follows: start the hydraulic push rod 17 through the control device 2, causing the lifting base 19 fixedly connected to the hydraulic push rod 17 to lift and lower, and further causing the clamping base 22 provided on the lifting base 19 to lift and lower, thereby causing the main clamping plate 28 provided on the clamping base 22 to lift and lower, causing the pipe fitting to be ground clamped and fixed by the main clamping plate 28 to lift and lower until the distance between the axis of the pipe fitting to be ground and the surface of the arch plate 20 close to the grinding base 1 is equal to the distance between the axis of the rotating disk 40 and the surface of the arch plate 20 close to the grinding base 1, thus completing the height adjustment of the pipe fitting to be ground;

[0145] Then, adjust the distance between the grinding heads 53 in the two grinding parts according to the diameter of the pipe fitting to be ground. The specific process is as follows: Control the third motor 42 to start through the control device 2, so that the feeding double-headed screw 44 fixedly connected to the output end of the third motor 42 rotates. Through the threaded transmission cooperation between the feeding double-headed screw 44 and the two feeding carriers 45, the two feeding carriers 45 approach or move away from each other. Furthermore, the two inner insertion blocks 4 respectively arranged on the two feeding carriers 45 approach or move away from each other, so that the two adjusting blocks 8 respectively arranged on the two inner insertion blocks 4 approach the inner surface of the pipe fitting to be ground. Furthermore, the two grinding parts respectively arranged on the two adjusting blocks 8 approach the inner surface of the pipe fitting to be ground, so that the grinding heads 53 in the two grinding parts approach the inner surface of the pipe fitting to be ground, and directly the grinding heads 53 are attached to the inner surface of the pipe fitting to be ground and apply corresponding pressure to the inner surface;

[0146] After the grinding heads 53 to be ground are attached to the inner surface of the pipe fitting to be ground, control the second motor 38 to start through the control device 2, so that the drive shaft 39 fixedly connected to the output end of the second motor 38 rotates, driving the rotating disk 40 fixedly connected to the drive shaft 39 to rotate, making the two feeding carriers 45 arranged on the rotating disk 40 rotate around the axis of the rotating disk 40. Thus, the inner insertion blocks 4 fixedly connected to the feeding carriers 45 rotate around the axis of the rotating disk 40. Furthermore, the adjusting blocks 8 slidably arranged on the inner insertion blocks 4 rotate around the axis of the rotating disk 40. Thus, the grinding parts arranged on the adjusting blocks 8 rotate around the axis of the rotating disk 40. Furthermore, the grinding heads 53 in the grinding parts rotate around the axis of the rotating disk 40, so as to grind the inner surface of the pipe fitting to be ground;

[0147] It should be noted that when there are protrusions on the inner surface of the pipe fitting to be ground, the device is provided with an internal spring 50. When the grinding head 53 passes over the protrusion on the inner surface of the pipe fitting to be ground, the grinding head 53 moves towards the adjacent adjusting block 8. Thus, the connecting piece 52 fixedly connected to the grinding head 53 moves towards the adjacent adjusting block 8. Furthermore, the stop block 51 fixedly connected to the connecting piece 52 slides in the adjusting groove 49, thereby compressing the internal spring 50. After the grinding head 53 passes over the protrusion on the inner surface of the pipe fitting to be ground, the compressed internal spring 50 releases elastic potential energy. Thus, the stop block 51 drives the connecting piece 52 to move towards the inner surface direction of the pipe fitting to be ground. Furthermore, the grinding head 53 fixedly connected to the connecting piece 52 moves towards the inner surface direction of the pipe fitting to be ground until the grinding head 53 is reattached to the inner surface of the pipe fitting to be ground to grind the inner surface of the pipe fitting to be ground.

[0148] The foregoing description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adaptive grinding device for machining precision mechanical parts, comprising a grinding base (1) and a control device (2), characterized in that: The grinding base (1) is provided with an adjustment groove (3), the grinding base (1) is provided with a bearing part, the bearing part is provided with a lifting part, and further comprises: A position adjustment portion, arranged on the grinding base (1), the position adjustment portion being used to adjust the position of the bearing portion on the grinding base (1); A positioning part, arranged on the lifting part, and used for positioning the axis position of the pipe to be ground; A clamping mechanism is arranged on the lifting part, and is used to clamp and fix pipes to be ground of different diameters; A feeding mechanism is arranged on the grinding base (1) and is electrically connected to the control device (2); There are two insert blocks (4), and the two insert blocks (4) are symmetrically arranged on the feeding mechanism. The two insert blocks (4) have internal grooves (5) on opposite side surfaces. A reinforcement portion is arranged between the two insert blocks (4). The two insert blocks (4) have limited grooves (6) and the two insert blocks (4) have internal grooves (7). There are two adjusting blocks (8), and the two adjusting blocks (8) are respectively slidably arranged on the two inserting blocks (4), and a limiting block (9) slidably connected to the limiting groove (6) is arranged on the adjusting block (8); An electric push rod (10) is disposed in the inner groove (7) and is electrically connected to the control device (2). The electric push rod (10) is fixedly connected to the adjustment block (8); The grinding parts have two groups, and the two groups of grinding parts are respectively arranged on two adjustment blocks (8), and the grinding parts are used to grind the inner surface of the pipe.

2. The adaptive grinding device for precision mechanical parts processing according to claim 1, characterized in that: The bearing part includes: An adjustment block (11) is arranged in the adjustment groove (3) and is slidably connected to the grinding base (1); The bearing block (12) is fixedly arranged on the adjustment block (11); a lifting groove (13) is provided in the middle of the surface of the bearing block (12) away from the grinding base (1); and a plurality of symmetrically arranged guide grooves (14) are provided on the surface of the bearing block (12) away from the grinding base (1).

3. The adaptive grinding device for precision mechanical parts processing according to claim 2, characterized in that: The adjustment department includes: A first motor (15) is fixedly mounted on the grinding base (1) and electrically connected to the control device (2); The adjusting screw (16) is arranged in the adjusting groove (3), and one end of the adjusting screw (16) close to the first motor (15) is fixedly connected to the output end of the first motor (15), and the adjusting screw (16) is threadedly connected to the adjusting block (11).

4. The adaptive grinding device for precision mechanical parts processing according to claim 3, characterized in that: The lifting part includes: A hydraulic push rod (17) is arranged in the lifting groove (13) and is electrically connected to the control device (2). The hydraulic push rod (17) is fixedly connected to the bearing block (12); There are multiple guide rods (18), and the multiple guide rods (18) are respectively arranged in the multiple guide grooves (14), and the guide rods (18) are slidably connected to the bearing block (12); The lifting base (19) is fixedly arranged on one end of the guide rod (18) away from the grinding base (1), and the lifting base (19) is fixedly connected to the hydraulic push rod (17).

5. The adaptive grinding device for precision mechanical parts processing according to claim 4, characterized in that the positioning part include: An arch plate (20) is fixedly mounted on the lifting base (19); The distance sensor (21) is arranged on the surface of the arch plate (20) close to the grinding base (1), the distance sensor (21) is electrically connected to the control device (2), and the distance sensor (21) is used to measure the distance between the top of the pipe to be ground and the surface of the arch plate (20) close to the grinding base (1).

6. The adaptive grinding device for precision mechanical parts processing according to claim 5, characterized in that: The clamping mechanism includes: A clamping base (22) is fixedly arranged on the lifting base (19), a main clamping groove (23) is provided on the surface of the clamping base (22) away from the grinding base (1), two symmetrical auxiliary grooves (24) are provided on both sides of the clamping base (22), and a through groove (25) penetrating the clamping base (22) is provided in the auxiliary groove (24); A main motor (26) is fixedly mounted on the clamping base (22) and electrically connected to the control device (2); A main double-headed screw (27) is rotatably disposed in the main clamping groove (23), and one end of the main double-headed screw (27) close to the main motor (26) is fixedly connected to the output end of the main motor (26), and the threads on both sides of the main double-headed screw (27) have opposite rotation directions; There are two main plates (28), and the two main plates (28) are symmetrically arranged on the clamping base (22), and the main plates (28) are threadedly connected to the main double-headed screw (27); The auxiliary clamping parts have two groups, and the two groups of auxiliary clamping parts are symmetrically arranged on the clamping base (22).

7. An adaptive grinding device for precision mechanical parts processing according to claim 6, characterized in that: The auxiliary clamping part comprises: An electric push shaft (29) is fixedly disposed in the auxiliary groove (24) and is fixedly connected to the clamping base (22). The electric push shaft (29) is electrically connected to the control device (2); A push block (30) is disposed in the auxiliary groove (24) and is slidably connected to the clamping base (22). The push block (30) is fixedly connected to the electric push shaft (29); A connecting block (31) is disposed in the auxiliary groove (24) and is slidably connected to the through groove (25); one end of the connecting block (31) close to the pushing block (30) is fixedly connected to the pushing block (30); An auxiliary base (32) is fixedly arranged at one end of the connecting block (31) away from the pushing block (30), and a secondary clamping groove (33) is formed on a surface of the auxiliary base (32) away from the grinding base (1); An auxiliary motor (34) is fixedly mounted on the auxiliary base (32) and electrically connected to the control device (2); A secondary double-headed screw (35) is rotatably disposed in the secondary clamping groove (33), and one end of the secondary double-headed screw (35) close to the secondary motor (34) is fixedly connected to the output end of the secondary motor (34), and the threads on both sides of the secondary double-headed screw (35) have opposite rotation directions; There are two auxiliary clamping plates (36), and the two auxiliary clamping plates (36) are symmetrically arranged on the auxiliary base (32), and the auxiliary clamping plates (36) are threadedly connected with the auxiliary double-headed screw (35).

8. The adaptive grinding device for precision mechanical parts processing according to claim 7, characterized in that: The feeding mechanism includes: A vertical plate (37) is fixedly mounted on the grinding base (1); A second motor (38) is fixedly mounted on the vertical plate (37) and is electrically connected to the control device (2); A driving shaft (39) is rotatably disposed on the vertical plate (37), and one end of the driving shaft (39) close to the second motor (38) is fixedly connected to the output end of the second motor (38); A rotating disk (40) is fixedly arranged at one end of the driving shaft (39) away from the second motor (38), and a feeding groove (41) is formed on a surface of the rotating disk (40) away from the vertical plate (37); A third motor (42) is fixedly mounted on the rotating disk (40) and is electrically connected to the control device (2); A plurality of counterweight blocks (43) are provided on the rotating disk (40), and the counterweight blocks (43) are used to make the mass distribution of the rotating disk (40) uniform; A feeding double-headed screw (44) is rotatably disposed in the feeding groove (41), and one end of the feeding double-headed screw (44) close to the third motor (42) is fixedly connected to the output end of the third motor (42), and the threads on both sides of the feeding double-headed screw (44) have opposite rotation directions; The feed carrier blocks (45) are provided with two, and the two feed carrier blocks (45) are symmetrically arranged in the feed groove (41), the two feed carrier blocks (45) are threadedly connected to the feed double-headed screw rod (44), and the feed carrier blocks (45) are fixedly connected to the insert block (4) near the surface of the insert block (4).

9. An adaptive grinding device for precision mechanical parts processing according to claim 8, characterized in that: The reinforcement part includes: A fixing rod (46) is disposed in the built-in groove (5) and fixedly connected to the insert block (4); A sliding block (47) is slidably disposed in the built-in groove (5) and is slidably connected to the fixed rod (46), and two symmetrical sliding blocks (47) are disposed on the fixed rod (46); There are two cross plates (48), and the middle parts of the two cross plates (48) are rotatably connected, and the ends of the two cross plates (48) are respectively rotatably connected to the adjacent sliding blocks (47).

10. An adaptive grinding device for precision mechanical parts processing according to claim 9, characterized in that: The grinding department includes: An adjustment groove (49) is provided in the adjustment block (8); A built-in spring (50) is arranged in the adjustment groove (49), and one end of the built-in spring (50) is fixedly connected to the adjustment block (8), and the built-in spring (50) is always in a compressed state; A stopper (51) is disposed in the adjustment groove (49) and is slidably connected to the adjustment block (8); the stopper (51) is fixedly connected to the built-in spring (50); A connecting member (52) is fixedly arranged on a surface of the stopper (51) away from the built-in spring (50), and the connecting member (52) is slidably connected to the adjusting block (8); The grinding tool head (53) is arranged on the connecting member (52), and the grinding tool head (53) and the connecting member (52) are detachably fixedly connected.

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