Hydraulic drive type honing head structure

Abstract

The invention discloses a hydraulic drive type honing head structure, and belongs to the technical field of honing heads, the hydraulic drive type honing head structure comprises a connector, a tool rest, a cutting edge and an expansion mechanism, the end of the connector is provided with a liquid inlet channel arranged along the axis of the connector in a penetrating mode, and the expansion mechanism comprises a drive sliding rod, a drive reset piece and a cutting reset piece; a driving sliding groove is formed in the end, facing the connector, of the tool rest, and when the driving sliding rod slides in the direction away from the connector, the cutting edges move in the axis direction away from the tool rest. A flowing channel is formed in the end, facing the connector, of the driving sliding rod, a communicating hole communicating with the flowing channel and the driving sliding groove is formed in the free end, away from the connector, of the driving sliding rod, and a nozzle communicating with the driving sliding groove is formed in the free end, close to the cutting edge, of the tool rest. The honing device has the effects that precise coverage of cutting fluid in a cutting area is conveniently achieved in the honing machining process, and the honing machining quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of honing heads, and in particular to a hydraulically driven honing head structure. Background Art

[0002] Honing heads are usually used in manufacturing, semiconductor, electronic devices and other industries, such as automotive parts manufacturing, mold manufacturing, precision parts processing, etc. In these fields, honing heads can perform high-precision hole expansion or deep hole processing, improving processing efficiency and processing quality.

[0003] The honing head in the related technology usually includes a connecting head, a tool holder, a cutting edge and an expansion mechanism, wherein the connecting head is installed at one end of the tool holder and is used to connect with the output end of the equipment, the cutting edge is installed on the tool holder along the radial direction of the tool holder and is circumferentially distributed around the axis of the tool holder, and the expansion mechanism is arranged on the tool holder and is used to expand each cutting edge outward, so that the cutting edge can stably realize the processing of the workpiece to be processed; during the processing of the honing head, after the cutting edge expands, the cutting fluid is usually sprayed to the processing part of the workpiece through a spray pipe arranged outside to cool and lubricate the processing part of the workpiece.

[0004] With regard to the above-mentioned related technologies, the spraying of cutting fluid by the external spray pipe is not convenient for achieving accurate coverage of the cutting area, which makes it easy for partial overheating or insufficient lubrication to occur during the workpiece processing, affecting the honing processing quality. Summary of the invention

[0005] In order to facilitate the precise coverage of the cutting fluid in the cutting area during the honing process and ensure the quality of the honing process, the present application provides a hydraulically driven honing head structure.

[0006] The present application provides a hydraulically driven honing head structure, which adopts the following technical solution: A hydraulically driven honing head structure comprises a connecting head, a tool holder, a cutting edge and an expansion mechanism, wherein the connecting head is installed at one end of the tool holder and is used to connect with the output end of the equipment, the cutting edge is installed on the tool holder for sliding along the radial direction of the tool holder and is circumferentially distributed around the axis of the tool holder, the end of the connecting head is provided with a liquid inlet channel arranged along its own axis, the expansion mechanism comprises a driving slide rod, a driving reset member and a cutting reset member, the tool holder is provided with a driving slide groove at one end facing the connecting head, the driving slide rod is slidably matched with the driving slide groove, when the driving slide rod slides in a direction away from the connecting head, each of the cutting edges moves in a direction away from the axis of the tool holder; the driving reset member is used to reset the driving slide rod, and the cutting reset member is used to reset each cutting edge; the end of the driving slide rod facing the connecting head is provided with a flow channel, the free end of the driving slide rod away from the connecting head is provided with a connecting hole connected with the flow channel and the driving slide groove, and the free end of the tool holder close to the cutting edge is provided with a nozzle connected with the driving slide groove.

[0007] By adopting the above technical scheme, when honing the workpiece, the connector is first connected to the output end of the equipment, and then the cutting fluid is introduced into the liquid inlet channel. The introduced cutting fluid enters the flow channel, the connecting hole and the driving slide groove in turn, and is finally sprayed out through the nozzle, so as to realize cooling of the workpiece processing part; during the process of introducing the cutting fluid, the driving slide rod moves in the direction away from the connector under the drive of the cutting fluid, so as to expand each cutting edge, so as to facilitate each cutting edge to realize the honing process of the workpiece. When the introduction of the cutting fluid is stopped, the driving slide rod and each cutting edge are reset under the action of the driving reset part and the cutting reset part respectively; during the honing process of the workpiece, the cutting edge can be expanded by introducing the cutting fluid, and the cutting fluid is sprayed to the workpiece processing part through the nozzle at the same time. The nozzle arranged near the cutting edge facilitates the cutting fluid to realize accurate coverage of the cutting area, so that it is not easy to have partial overheating or insufficient lubrication during the workpiece processing, which is conducive to ensuring the quality of the honing process.

[0008] Optionally, the driving slide rod has two sections of inclined driving guide surfaces, each of the cutting edges is provided with two sections of cutting driving surfaces respectively cooperating with the two sections of driving guide surfaces, and the connecting hole is located between the two sections of driving guide surfaces.

[0009] By adopting the above technical solution, the cooperation between the two driving guide surfaces and the cutting driving surface is conducive to ensuring the stability of each cutting edge when it moves in a direction away from the axis of the tool holder, that is, when the cutting edge expands. The connecting hole is located between the two driving guide surfaces to facilitate the stable flow of cutting fluid into the nozzle.

[0010] Optionally, a driving reset plate is provided at one end of the driving slide rod near the connecting head, and the driving reset plate is fixed to the driving slide rod by a fixing bolt which is threadedly engaged with the driving slide rod, and the fixing bolt is provided with an injection channel which is connected with the liquid inlet channel and the flow channel, and the driving reset member includes a reset spring which is sleeved on the outside of the driving slide rod, and one end of the reset spring abuts against the groove wall of the driving slide groove, and the other end abuts against the driving reset plate.

[0011] By adopting the above technical solution, the cooperation between the driving reset plate and the reset spring makes the reset structure of the driving reset member simple and practical, and facilitates the disassembly, assembly and maintenance of the driving reset member.

[0012] Optionally, a drive sealing gasket is provided between the fixing bolt and the drive reset plate.

[0013] By adopting the above technical solution, the provision of the driving sealing pad is conducive to improving the sealing effect of the injection channel, and is convenient for the cutting fluid to be stably injected into the flow channel through the injection channel.

[0014] Optionally, a limiting mechanism is provided in the driving slide groove, and the limiting mechanism includes a limiting plate and a limiting adjustment assembly, the limiting plate is located at the end of the driving slide rod away from the connecting head, and the limiting adjustment assembly is used to drive the limiting plate to move along the axial direction of the tool holder.

[0015] By adopting the above technical scheme, the limit plate plays a role in limiting the sliding of the driving slide rod, thereby facilitating the stable movement of each cutting edge to the position at the time of expansion. The limit adjustment component drives the limit plate to move along the axial direction of the tool holder, so that the limit plate can limit the driving slide rod at different positions, thereby facilitating the adjustment of the expansion of the cutting edge according to different processing conditions, and has strong applicability.

[0016] Optionally, the limit adjustment assembly includes an adjusting screw and an adjusting nut, the adjusting screw is coaxially mounted on the end of the tool holder away from the connecting head, the adjusting nut is used to fix the adjusting screw, the adjusting screw is passed through and threadedly engaged with the limit plate, the limit plate is equipped with a sliding limit piece, the driving slide groove is provided with a sliding limit groove extending along its own length direction, and the sliding limit piece is slidably engaged in the sliding limit groove.

[0017] By adopting the above technical solution, when the adjusting screw is rotated, the limit plate cooperates with the thread of the adjusting screw and moves along the length direction of the driving slide groove under the limiting action of the sliding limit piece and the sliding limit groove, which is convenient and stable.

[0018] Optionally, the limit adjustment assembly also includes an adjusting disk, which is fixedly mounted on the adjusting screw, and the adjusting disk is located between the adjusting nut and the tool holder. A spring plunger is provided on the side of the adjusting disk facing the tool holder, and a plurality of positioning holes are provided on the end of the tool holder facing the adjusting disk, which are circumferentially distributed around its own axis and corresponding to the spring plungers, and the spring plungers are plugged into and fit with the positioning holes.

[0019] By adopting the above technical solution, the cooperation between the spring plunger and the positioning hole plays a role in positioning the adjusting disk when it rotates, so that when the adjusting disk rotates to adjust the limit disk to the required position, the adjusting disk can be stably fixed by the adjusting nut.

[0020] Optionally, the cutting edge includes a cutting seat and a cutter head, the cutter head is installed on the cutting seat, the cutting seat is slidably installed on the tool holder along the radial direction of the tool holder, the cutting seat is provided with two cutting limit grooves, and the cutting reset part includes two annular springs, and the two annular springs are respectively located in the two cutting limit grooves of each cutting seat.

[0021] By adopting the above technical solution, the setting of the annular spring makes the structure of each cutting seat resetting after expansion simple, convenient and fast, and the setting of the cutting limit groove plays a limiting role in the position of the annular spring, which is convenient for ensuring the stability of the position of the annular spring when it performs elastic movement.

[0022] Optionally, a mounting hole is provided on the side of the cutting seat away from the axis of the tool holder, the cutting head is fixedly mounted with a mounting block which is plug-matched with the mounting hole, and a locking hole is provided on one side of the mounting block; a locking assembly is arranged in the mounting hole, and the locking assembly includes a locking rod, a locking reset piece and a locking block; a cutting groove is provided at one end of the cutting seat along the axis of the tool holder, and a locking groove which is connected to the cutting groove is provided on the side hole wall of the mounting hole; the locking rod is slidably engaged with the cutting groove, the locking block is fixedly mounted on the locking rod and slidably engaged in the locking groove, the locking block is plug-matched with the locking hole, and the locking reset piece is used to move the locking block toward the direction of the mounting hole.

[0023] By adopting the above technical solution, the cutting head can be quickly fixed or unlocked by moving the locking rod so that the locking block is inserted into or disengaged from the locking hole. This is convenient and fast, thereby facilitating the disassembly and assembly between the cutting head and the cutting seat, and then realizing the inspection and maintenance of the cutting head, which is beneficial to ensuring the performance of the cutting head.

[0024] Optionally, multiple mounting blocks are arranged along the length direction of the cutter head, and multiple mounting holes, cutting grooves and locking blocks are arranged along the axis direction of the locking rod corresponding to the mounting blocks. A locking guide surface is provided on the top of each locking block. When the mounting block abuts against the locking guide surface, the locking block has a component force that slides in the direction away from the mounting hole.

[0025] By adopting the above technical solution, the cooperation of multiple mounting blocks and locking blocks is conducive to further ensuring the fixing stability between the cutter head and the cutting seat, and the setting of the locking guide surface makes it possible for the locking block to automatically move away from the mounting hole when the mounting block is inserted into the mounting hole to fix the cutter head, thereby making the fixing operation between the cutter head and the cutting seat easier.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The cutting edge can be expanded by introducing cutting fluid, and the cutting fluid is sprayed to the workpiece processing part through the nozzle at the same time. The nozzle arranged close to the cutting edge makes it easy for the cutting fluid to accurately cover the cutting area, so that the workpiece is not prone to partial overheating or insufficient lubrication during processing, which is conducive to ensuring the quality of honing processing.

[0027] 2. The limit adjustment component drives the limit plate to move along the axial direction of the tool holder, so that the limit plate can limit the driving slide rod at different positions, thereby facilitating the adjustment of the expansion of the cutting edge according to different processing conditions, and has strong applicability.

[0028] 3. The cooperation between the spring plunger and the positioning hole plays a role in positioning the adjusting disk when it rotates, so that when the adjusting disk rotates to adjust the limit disk to the desired position, the adjusting disk can be stably fixed by the adjusting nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0030] Figure 2 It is a partial cross-sectional schematic diagram of the overall structure in Example 1 of the present application.

[0031] Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A.

[0032] Figure 4 yes Figure 2 A partial enlarged schematic diagram of part B.

[0033] Figure 5 It is a partial cross-sectional schematic diagram of the cutting edge in Example 2 of the present application.

[0034] Description of reference numerals: 1. Connector; 2. Tool holder; 201. Frame; 202. End cover; 3. Cutting edge; 301. Cutting seat; 302. Tool head; 4. Liquid inlet channel; 5. Driving slide groove; 501. First sliding section; 502. Second sliding section; 503. Third sliding section; 6. Driving slide rod; 601. First sliding part; 602. Second sliding part; 7. Flow channel; 701. First flow section; 702. Second flow section; 8. Connecting hole; 9. Nozzle; 10. Driving guide surface; 11. Cutting driving surface; 12. Cutting limit groove; 13. Annular spring; 14. Drive reset plate; 15. Fixing bolt; 16. Injection channel; 17. Drive sealing gasket; 18. Reset spring; 19. Limit plate; 20. Adjusting screw; 21. Adjusting nut; 22. Adjusting plate; 23. Sliding limiter; 24. Sliding limit groove; 25. Spring plunger; 26. Positioning hole; 27. Mounting hole; 28. Mounting block; 29. ​​Locking hole; 30. Locking rod; 31. Locking spring; 32. Locking block; 33. Cutting slide groove; 34. Locking slide groove; 35. Locking guide surface; 36. Locking reset plate; 37. Reset slide groove; 38. Positioning plate. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] The embodiment of the present application discloses a hydraulically driven honing head structure.

[0037] Example 1.

[0038] Reference Figure 1 and Figure 2 The hydraulic driven honing head structure includes a connector 1, a tool holder 2, a cutting edge 3 and an expansion mechanism, wherein the tool holder 2 includes a frame 201 and an end cover 202. The connector 1 is installed at one end of the frame 201 and is used to connect with the output end of the device. The end of the connector 1 away from the frame 201 is provided with a liquid inlet channel 4 arranged along its own axis. The end of the frame 201 facing the connector 1 is provided with a driving chute 5 connected with the liquid inlet channel 4 and arranged along its own axis. The end cover 202 is fixedly installed at the end of the frame 201 away from the connector 1 by bolts and closes the driving chute 5.

[0039] Reference Figure 1 and Figure 3The cutting edge 3 includes a cutting seat 301 and a cutter head 302, wherein the cutting seat 301 is slidably installed on the outer peripheral surface of the frame body 201 along the radial direction of the frame body 201 and is evenly distributed circumferentially around the axis of the frame body 201, and a plurality of cutter heads 302 are arranged in a one-to-one correspondence with the cutting seat 301. Each cutter head 302 is respectively fixed by bonding and embedded in a side of each cutting seat 301 away from the axis of the frame body 201. The expansion mechanism is arranged on the frame body 201 and is used to expand each cutting edge 3 in the direction away from the axis of the frame body 201.

[0040] Reference Figure 2 and Figure 3 Specifically, the expansion mechanism includes a driving slide rod 6, a driving reset member and a cutting reset member, wherein the driving slide rod 6 slides and cooperates with the driving slide groove 5, and the driving slide groove 5 includes a first sliding section 501, a second sliding section 502 and a third sliding section 503 which are arranged in sequence from close to the connecting head 1 to away from the connecting head 1. The cross-sectional size of the second sliding section 502 is smaller than the cross-sectional size of the first sliding section 501, and the cross-sectional size of the third sliding section 503 is larger than the cross-sectional size of the second sliding section 502.

[0041] Continue to refer to Figure 2 and Figure 3 The driving slide bar 6 includes a first sliding portion 601 and a second sliding portion 602. The first sliding portion 601 is fixedly installed on an end of the second sliding portion 602 close to the connector 1 by bolts. The first sliding portion 601 is penetrated and slidably fitted in the second sliding section 502. The second sliding portion 602 is slidably fitted in the third sliding section 503. A flow channel 7 is provided at the end of the driving slide bar 6 facing the connector 1. The flow channel 7 includes a first flow section 701 located at the first sliding portion 601 and a second flow section 702 located at the second sliding portion 602. The second flow section 702 is connected to the first flow section 701 and the cross-sectional size of the second flow section 702 is larger than the cross-sectional size of the first flow section 701.

[0042] Reference Figure 1 and Figure 3 The outer peripheral surface of the second flow section 702 is provided with a plurality of connecting holes 8 which are circumferentially distributed around its own axis and are arranged through, that is, the connecting holes 8 are connected with the second flow section 702 and the third sliding section 503, and the free end of the tool holder 2 close to the cutting edge 3 is provided with a nozzle 9 which is connected with the third sliding section 503, and there are multiple groups of nozzles 9 which are circumferentially distributed around the axis of the tool holder 2, and each group of nozzles 9 is evenly distributed with four nozzles along the axial direction of the tool holder 2, and the milling fluid entering the flow channel 7 is finally sprayed out through each nozzle 9, thereby realizing lubrication and cooling of the workpiece processing part.

[0043] Reference Figure 2 and Figure 3The second sliding part 602 has two inclined drive guide surfaces 10, the connecting hole 8 is located between the two drive guide surfaces 10, and the cross-sectional size of the drive guide surface 10 gradually decreases from the direction close to the connector 1 to the direction away from the connector 1. The cutting seat 301 of each cutting edge 3 is provided with two cutting drive surfaces 11 on the side facing the axis of the tool holder 2. The two cutting drive surfaces 11 are respectively slidably matched with the two drive guide surfaces 10, so that when the second sliding part 602 moves in the direction away from the connector 1, each cutting edge 3 moves together in the direction away from the axis of the tool holder 2.

[0044] Reference Figure 3 A cutting limit groove 12 is respectively provided at the two free ends of the cutting seat 301 close to its own length direction, and the cutting reset part includes two annular springs 13, and the two annular springs 13 are respectively located in the two cutting limit grooves 12 of each cutting seat 301, so that after the driving slide rod 6 is reset, each cutting edge 3 is reset together under the elastic force of the two annular springs 13. The cooperation of the cutting limit groove 12 and the position of the two annular springs 13 located in the cutting seat 301 are conducive to fully ensuring the stability of each cutting edge 3 when it is reset.

[0045] Reference Figure 2 and Figure 4 , a driving reset plate 14 and a fixing bolt 15 are provided at one end of the first sliding part 601 close to the connector 1. The fixing bolt 15 is coaxially arranged with the first sliding part 601 and threadedly engaged with one end of the first sliding part 601 away from the second sliding part 602. The driving reset plate 14 is fixed to the first sliding part 601 under the tightening action of the bolt head of the fixing bolt 15. The fixing bolt 15 is provided with an injection channel 16 penetrating along its own axial direction. The injection channel 16 is connected with the liquid inlet channel 4 and the flow channel 7 so as to transport the cutting fluid introduced into the liquid inlet channel 4 to the flow channel 7. In order to ensure the sealing effect between the fixing bolt 15 and the driving reset plate 14, a driving seal 17 is also sleeved on the fixing bolt 15. The driving seal 17 is located between the bolt head of the fixing bolt 15 and the driving reset plate 14. In the embodiment of the present application, the material of the driving seal 17 is rubber.

[0046] Continue to refer to Figure 2 and Figure 4 The outer peripheral surface of the driving reset plate 14 abuts against and slides with the first sliding section 501, and the driving reset member includes a reset spring 18 sleeved on the outside of the first sliding portion 601, one end of the reset spring 18 abuts against the groove wall of the first sliding section 501 away from the connecting head 1, and the other end abuts against the side of the driving reset plate 14 away from the connecting head 1, so that the driving slide rod 6 can be stably reset under the elastic force of the reset spring 18. The setting of the driving reset plate 14 also plays a blocking role for the cutting fluid, making it difficult for the cutting fluid to enter the cavity where the reset spring 18 is located, thereby facilitating the stable reset of the reset spring 18.

[0047] Reference Figure 2 and Figure 3 A limiting mechanism is also provided in the third sliding section 503, and the limiting mechanism includes a limiting plate 19 and a limiting adjustment assembly, wherein the limiting plate 19 is located at the end of the driving slide bar 6 away from the connector 1. When the driving slide bar 6 contacts the limiting plate 19, the limiting plate 19 limits the position of the driving slide bar 6, thereby facilitating the stable movement of each cutting edge 3 to the position at the time of expansion. The limiting adjustment assembly is used to drive the limiting plate 19 to move along the axial direction of the tool holder 2, so as to adjust the expansion of the cutting edge 3 according to different processing conditions, and has strong applicability.

[0048] Continue to refer to Figure 2 and Figure 3 Specifically, the limit adjustment assembly includes an adjustment screw 20, an adjustment nut 21 and an adjustment disk 22. The adjustment disk 22 is coaxially arranged on the side of the end cover 202 away from the connector 1. The adjustment screw 20 is coaxially penetrated and fixedly installed on the adjustment disk 22, so that when the adjustment disk 22 rotates, the adjustment screw 20 rotates together. Two adjustment nuts 21 are provided and both of the two adjustment nuts 21 are threadedly matched with the adjustment screw 20. The two adjustment nuts 21 are both located on the side of the adjustment disk 22 away from the end cover 202, so that when the two adjustment nuts 21 are tightened, the position of the adjustment disk 22 is fixed.

[0049] Reference Figure 3 The adjusting screw rod 20 is passed through and rotatably mounted on the end cover 202, and the adjusting screw rod 20 is passed through and threadedly engaged with the limiting plate 19. A sliding stopper 23 is installed on the outer circumference of the limiting plate 19. In the embodiment of the present application, the sliding stopper 23 is selected as a pin. The groove wall of the driving slide groove 5 is provided with a sliding stopper groove 24 extending along its own length direction. The sliding stopper 23 slides and engages in the sliding stopper groove 24 to play a limiting role when the limiting plate 19 rotates around its own axis, so that when the adjusting screw rod 20 is rotated, the limiting plate 19 moves along the length direction of the driving slide groove 5 due to the threaded engagement with the adjusting screw rod 20 and the limiting role of the sliding stopper 23 and the sliding stopper groove 24.

[0050] Reference Figure 2 and Figure 3 In order to facilitate the preliminary positioning of the position of the adjusting disk 22 after rotation, a spring plunger 25 is provided on the side of the adjusting disk 22 facing the tool holder 2, and a plurality of positioning holes 26 are provided on the end of the tool holder 2 facing the adjusting disk 22 and distributed circumferentially around its own axis and corresponding to the spring plungers 25. Each positioning hole 26 is plugged into and matched with the spring plunger 25. When the adjusting disk 22 is rotated so that the spring plunger 25 is inserted into one of the positioning holes 26, the preliminary limiting effect on the position of the adjusting disk 22 is achieved, thereby facilitating the stable fixation of the adjusting disk 22 by subsequently screwing the adjusting nut 21.

[0051] The implementation principle of Example 1 is as follows: when the workpiece needs to be honed, the connector 1 is first connected to the output end of the equipment, and then the cutting fluid is introduced into the liquid inlet channel 4. The introduced cutting fluid enters the flow channel 7, the connecting hole 8 and the driving slide 5 in sequence, and is finally ejected through the nozzle 9, thereby realizing cooling of the workpiece processing part; during the process of introducing the cutting fluid, the driving slide 6 is driven by the cutting fluid to move in a direction away from the connector 1, thereby expanding each cutting edge 3, so that each cutting edge 3 can realize honing of the workpiece. During honing, when the introduction of cutting fluid is stopped, the driving slide rod 6 and each cutting edge 3 are reset under the elastic force of the reset spring 18 and the annular spring 13 respectively; during the honing process of the workpiece, the cutting edge 3 can be expanded by introducing cutting fluid, and the cutting fluid is sprayed to the processing part of the workpiece through the nozzle 9 at the same time. The nozzle 9 arranged close to the cutting edge 3 facilitates the cutting fluid to achieve accurate coverage of the cutting area, so that partial overheating or insufficient lubrication is not likely to occur during the workpiece processing, which is conducive to ensuring the quality of the honing process.

[0052] Example 2.

[0053] Reference Figure 5 The difference between this embodiment and embodiment 1 is that the connection method between the cutting seat 301 and the cutter head 302 is different. The cutting seat 301 in the embodiment of the present application is provided with two mounting holes 27 distributed along its own length direction on the side away from the axis of the tool holder 2, and the bottom of the cutter head 302 is fixedly installed with mounting blocks 28 corresponding to the two mounting holes 27 and plug-fitting with the two mounting holes 27.

[0054] Continue to refer to Figure 5 A locking hole 29 is provided on one side of the mounting block 28, and a locking assembly is provided in the mounting hole 27. The locking assembly includes a locking rod 30, a locking reset member and a locking block 32, wherein a cutting groove 33 is provided at one end of the cutting seat 301 in the length direction, and locking grooves 34 connected to the cutting groove 33 are provided on the side hole walls of the two mounting holes 27. The locking rod 30 slides in the cutting groove 33, and two locking blocks 32 are provided corresponding to the mounting block 28. The two locking blocks 32 are fixedly mounted on the locking rod 30 and slide in the two locking grooves 34 respectively. The locking blocks 32 are plugged into the locking holes 29. When the two locking blocks 32 are respectively inserted into the two locking holes 29, the cutter head 302 and the cutting seat 301 are firmly fixed.

[0055] Continue to refer to Figure 5, each locking block 32 is provided with a locking guide surface 35 at the top. When the mounting block 28 is inserted into the mounting hole 27 and abuts against the locking guide surface 35, the locking block 32 automatically slides in a direction away from the mounting hole 27 under the action of the component force, thereby further facilitating the fixation between the cutter head 302 and the cutting seat 301. The locking rod 30 is fixedly mounted with a locking reset plate 36. The groove wall of the locking slide 34 is provided with a reset slide 37 extending along its own length direction. The locking reset plate 36 slides and fits in the reset slide 37. The locking reset member includes a locking spring 31 sleeved on the outside of the locking rod 30. One end of the locking spring 31 abuts against the locking reset plate 36 and the other end abuts against the groove wall of the reset slide 37 away from the locking reset plate 36. When the locking rod 30 is pulled to make the two locking blocks 32 disengage from the two locking holes 29, the cutting seat 301 and the cutter head 302 are unlocked. A retaining plate 38 is fixedly mounted on one end of the locking rod 30 outside the cutting seat 301 . The retaining plate 38 not only limits the sliding movement of the locking rod 30 , but also facilitates the application of force to achieve the sliding of the locking rod 30 .

[0056] The implementation principle of Example 2 is the same as that of Example 1, with the main difference being that the cutter head 302 can be quickly fixed or unlocked by moving the locking rod 30 so that the locking block 32 is inserted into or disengaged from the locking hole 29, which is convenient and fast, and facilitates the disassembly and assembly between the cutter head 302 and the cutting seat 301, thereby realizing the inspection and maintenance of the cutter head 302 and ensuring the performance of the cutter head 302.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hydraulically driven honing head structure, comprising a connecting head (1), a tool holder (2), a cutting edge (3) and an expansion mechanism, wherein the connecting head (1) is mounted on one end of the tool holder (2) and is used to be connected to an output end of a device, and the cutting edge (3) is slidably mounted on the tool holder (2) along the radial direction of the tool holder (2) and is distributed circumferentially around the axis of the tool holder (2), and is characterized in that: The end of the connector (1) is provided with a liquid inlet channel (4) which is arranged along its own axis. The expansion mechanism comprises a driving slide rod (6), a driving reset member and a cutting reset member. The end of the tool holder (2) facing the connector (1) is provided with a driving slide groove (5). The driving slide rod (6) is slidably matched with the driving slide groove (5). When the driving slide rod (6) slides in a direction away from the connector (1), each cutting edge (3) moves in an axial direction away from the tool holder (2); the driving reset member is used to reset the driving slide rod (6), and the cutting reset member is used to reset each cutting edge (3); the end of the driving slide rod (6) facing the connector (1) is provided with a flow channel (7). The free end of the driving slide rod (6) away from the connector (1) is provided with a connecting hole (8) which is connected to the flow channel (7) and the driving slide groove (5). The free end of the tool holder (2) close to the cutting edge (3) is provided with a nozzle (9) which is connected to the driving slide groove (5).

2. The hydraulically driven honing head structure according to claim 1, characterized in that: The driving slide bar (6) has two sections of inclined driving guide surfaces (10), each of the cutting edges (3) is provided with two sections of cutting driving surfaces (11) respectively matched with the two sections of driving guide surfaces (10), and the connecting hole (8) is located between the two sections of driving guide surfaces (10).

3. The hydraulically driven honing head structure according to claim 1, characterized in that: A driving reset plate (14) is provided at one end of the driving slide rod (6) close to the connecting head (1); the driving reset plate (14) is fixed to the driving slide rod (6) by means of a fixing bolt (15) threadedly engaged with the driving slide rod (6); the fixing bolt (15) is provided with a liquid injection channel (16) connected to the liquid inlet channel (4) and the flow channel (7); the driving reset member comprises a reset spring (18) sleeved on the outside of the driving slide rod (6); one end of the reset spring (18) abuts against the groove wall of the driving slide groove (5) and the other end abuts against the driving reset plate (14).

4. The hydraulically driven honing head structure according to claim 3, characterized in that: A driving sealing pad (17) is arranged between the fixing bolt (15) and the driving reset plate (14).

5. The hydraulically driven honing head structure according to claim 1, characterized in that: A limit mechanism is arranged in the driving slide groove (5), and the limit mechanism comprises a limit plate (19) and a limit adjustment component. The limit plate (19) is located at the end of the driving slide rod (6) away from the connecting head (1), and the limit adjustment component is used to drive the limit plate (19) to move along the axial direction of the tool holder (2).

6. The hydraulically driven honing head structure according to claim 5, characterized in that: The limit adjustment assembly comprises an adjustment screw (20) and an adjustment nut (21); the adjustment screw (20) is coaxially rotatably mounted on one end of the tool holder (2) away from the connecting head (1); the adjustment nut (21) is used to fix the adjustment screw (20); the adjustment screw (20) is passed through and threadedly engaged with a limit plate (19); the limit plate (19) is equipped with a sliding limit member (23); the driving slide groove (5) is provided with a sliding limit groove (24) extending along its own length direction; the sliding limit member (23) is slidingly engaged in the sliding limit groove (24).

7. The hydraulically driven honing head structure according to claim 5, characterized in that: The limit adjustment assembly also includes an adjustment disk (22), the adjustment disk (22) is fixedly mounted on the adjustment screw rod (20), the adjustment disk (22) is located between the adjustment nut (21) and the tool holder (2), a spring plunger (25) is provided on the side of the adjustment disk (22) facing the tool holder (2), and a plurality of positioning holes (26) are provided on the end of the tool holder (2) facing the adjustment disk (22), which are circumferentially distributed around the axis of the tool holder and corresponding to the spring plunger (25), and the spring plunger (25) is plugged into and matched with the positioning hole (26).

8. The hydraulically driven honing head structure according to claim 1, characterized in that: The cutting edge (3) comprises a cutting seat (301) and a cutter head (302), wherein the cutter head (302) is mounted on the cutting seat (301), and the cutting seat (301) is slidably mounted on the cutter head (2) along the radial direction of the cutter head (2), and the cutting seat (301) is provided with two cutting limit grooves (12), and the cutting reset member comprises two annular springs (13), and the two annular springs (13) are respectively located in the two cutting limit grooves (12) of each cutting seat (301).

9. The hydraulically driven honing head structure according to claim 8, characterized in that: A mounting hole (27) is provided on a side of the cutting seat (301) away from the axis of the tool holder (2); a mounting block (28) pluggable with the mounting hole (27) is fixedly mounted on the cutter head (302); a locking hole (29) is provided on one side of the mounting block (28); a locking assembly is provided in the mounting hole (27), the locking assembly comprises a locking rod (30), a locking reset member and a locking block (32); and a locking member is provided at one end of the cutting seat (301) along the axis of the tool holder (2). A cutting groove (33) is provided, and a locking groove (34) connected to the cutting groove (33) is provided on the side hole wall of the mounting hole (27). The locking rod (30) is slidably matched in the cutting groove (33). The locking block (32) is fixedly installed on the locking rod (30) and slidably matched in the locking groove (34). The locking block (32) is plug-fitted with the locking hole (29). The locking reset member is used to move the locking block (32) toward the mounting hole (27).

10. The hydraulically driven honing head structure according to claim 9, characterized in that: The mounting block (28) is provided in plurality along the length direction of the cutter head (302); the mounting hole (27), the cutting groove (33) and the locking block (32) are provided in plurality along the axis direction of the locking rod (30) corresponding to the mounting block (28); a locking guide surface (35) is provided at the top of each locking block (32); when the mounting block (28) abuts against the locking guide surface (35), the locking block (32) has a component force sliding in a direction away from the mounting hole (27).

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