Positioning and locking mechanism for high-precision part lathe

Abstract

The utility model discloses a positioning and locking mechanism for a high-precision part lathe, relates to the technical field of positioning and locking for lathes, and solves the problems that if limiting assistance is lacked, the motion trail of a movable clamp is difficult to accurately control, deviation is easy to generate, and if the centrifugal force and inertia force at a high rotating speed intensify uncertainty, the machining precision is poor. The main shaft locking device comprises a bottom plate, a locking assembly comprises a frame and an upper clamping block, limiting columns are fixedly installed on the surface of the top of a lower clamping block, limiting holes penetrating through the interior are formed in the surface of the bottom end of the upper clamping block, and the top ends of the limiting columns are inserted into the limiting holes. By additionally arranging the locking assembly, the limiting columns installed on the top of the lower clamping block are inserted into the limiting holes formed in the surface of the bottom end of the upper clamping block, and the problems that the movement track is difficult to accurately control, deviation is likely to be generated, and the spindle is difficult to lock effectively can be effectively solved through insertion matching of the limiting columns and the limiting holes.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning and locking for lathes, in particular to a positioning and locking mechanism for high-precision part lathes. Background Art

[0002] A lathe is a machine tool that mainly uses a turning tool to turn rotating workpieces. It is widely used in mechanical manufacturing and repair factories to process various rotating surfaces, such as internal and external cylindrical surfaces, conical surfaces, formed rotating surfaces and end faces, etc. It can also process threaded surfaces, etc. In short, lathes play an important role in many fields such as mechanical manufacturing, automotive industry, aerospace, mold manufacturing, etc., and are important equipment for manufacturing various rotating parts and parts with rotating surfaces.

[0003] Patent publication number "CN219986945U" discloses "a lathe spindle indexing locking mechanism", which includes a shell, a back plate provided on the back of the shell, a fixed plate symmetrically provided on the front of the shell, an extrusion bevel provided inside the shell, a fixed seat provided below the extrusion bevel, a stop seat provided on the fixed seat, recesses provided in both the fixed seat and the stop seat, a ridge provided on the back of the extrusion bevel, the ridge cooperates with the recess, a pressure seat provided on the front of the extrusion bevel, the pressure seat cooperates with the extrusion bevel, a dynamic clamp is provided on the pressure seat, and a fixed clamp is provided on the opposite side of the dynamic clamp. The fixed clamp is installed on one side of the spindle, and the dynamic clamp is installed on the other side of the spindle. The cylinder is started, and the cylinder drives the push rod to push the extrusion bevel. The extrusion bevel acts on the pressure seat and squeezes the pressure seat until the dynamic clamp moves toward the fixed clamp and is locked to the spindle by the friction block. The spindle can be quickly locked with good locking effect and high stability.

[0004] When the movable clamp of the device in the above patent moves toward the fixed clamp, if there is no limit assistance, the movement trajectory of the movable clamp is difficult to control accurately and deviations are likely to occur. If the centrifugal force and inertia force are at high speed, the uncertainty will be aggravated, causing the movable clamp and the fixed clamp to be misaligned, making it difficult to effectively lock the main shaft. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the above problems existing in the prior art, the utility model provides a positioning and locking mechanism for a high-precision parts lathe.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a positioning and locking mechanism for a high-precision parts lathe comprises a base plate, a pushing assembly, a lifting assembly and an auxiliary assembly are respectively arranged above the base plate, and a locking assembly is arranged above the lifting assembly;

[0009] The locking assembly includes a frame and an upper clamping block, the top of the upper clamping block is fixedly installed on the top wall of the frame, and a lower clamping block is provided below the upper clamping block. Limiting columns are fixedly installed on the top surface of the lower clamping block, and limiting holes passing through the interior are respectively opened on the bottom end surface of the upper clamping block. The top ends of the limiting columns are respectively inserted into the limiting holes, and wear-resistant blocks are respectively fixedly installed between the inner sides of the upper clamping block and the lower clamping block.

[0010] By adopting the above technical solution, the limit columns respectively installed on the top surface of the lower clamping block are inserted into the limit holes respectively opened on the bottom surface of the upper clamping block and passing through the interior, and the plug-in cooperation between the limit columns and the limit holes can effectively prevent the problems of difficult to accurately control the motion trajectory, easy to produce deviations and difficult to effectively lock the main shaft. It solves the problems that if there is no limit assistance, the motion trajectory of the dynamic clamp is difficult to accurately control and easy to produce deviations. If the centrifugal force and inertia force are at high speed, the uncertainty will be aggravated, the dynamic clamp and the fixed clamp will be misaligned, and it is difficult to effectively lock the main shaft.

[0011] As a preferred solution of the positioning and locking mechanism for the high-precision parts lathe described in the utility model, the pushing assembly includes a sliding groove and a sliding bar, the outer sides of the sliding bars are slidably connected to the inner sides of the sliding grooves, and a first inclined block is fixedly installed on the top surface of the sliding bar, and a servo hydraulic cylinder is fixedly installed on one end of the first inclined block.

[0012] By adopting the above technical solution, the servo hydraulic cylinder can effectively push the first inclined block installed at the output end to drive the sliding bar installed on the bottom surface to move effectively.

[0013] As a preferred solution of the positioning and locking mechanism for the high-precision parts lathe described in the utility model, the lifting assembly includes an outer frame, a second inclined block is slidably connected to the inner side of the outer frame, and limiting strips are fixedly installed on both side surfaces of the second inclined block. Limiting grooves passing through the top are respectively opened on both sides of the inner wall of the outer frame, and the outer sides of the limiting strips are slidably connected to the inner sides of the limiting grooves.

[0014] By adopting the above technical solution, limit bars are respectively installed on the two side surfaces of the second inclined block, and the outer sides of the limit bars are respectively slidably connected to the inner sides of the limit grooves. This matching method can further enhance the limit control effect and prevent the second inclined block from deviating and displacing when rising.

[0015] As a preferred solution of the positioning and locking mechanism for the high-precision parts lathe described in the utility model, the sliding groove of the pushing assembly is opened on the top surface of the base plate and passes through the interior, the bottom side of the servo hydraulic cylinder is fixedly mounted on the surface of the base plate, the bottom end of the outer frame of the lifting assembly is fixedly mounted on the top surface of the base plate and is located above the sliding groove, and the inclined surface of the other end of the first inclined block is located on the inclined surface of the bottom end of the second inclined block.

[0016] By adopting the above technical solution, the pushed first inclined block can effectively make the other end inclined surface contact the bottom end inclined surface of the second inclined block, and the second inclined block can achieve an effective lifting effect under the pushing force of the first inclined block.

[0017] As a preferred solution of the positioning and locking mechanism for the high-precision parts lathe described in the utility model, the bottom end of the frame of the locking assembly is fixedly mounted on the two side surfaces of the outer frame of the lifting assembly, and the bottom end of the lower clamping block is fixedly mounted on the top surface of the second inclined block.

[0018] By adopting the above technical solution, the raised second inclined block can effectively drive the lower clamping block installed on the top surface to rise, so that the raised lower clamping block can effectively cooperate with the upper clamping block and can quickly lock the main shaft.

[0019] As a preferred solution of the positioning and locking mechanism for the high-precision parts lathe described in the utility model, the auxiliary component includes a cover plate and a support bar, the bottom end of the support bar is fixedly mounted on the surface of the cover plate, the bottom surface of the cover plate is fixedly mounted on the surface of the base plate and is located above the sliding groove and sliding bar of the pushing component, and the top end of the support bar is fixedly mounted on the surface of one end of the outer frame of the lifting component.

[0020] By adopting the above technical solution, the cover plate located above the sliding groove and sliding bar of the pushing component and installed on the surface of the bottom plate can effectively play a certain limiting control effect to prevent the sliding bar from tilting, and the support bar installed on the surface of the cover plate can effectively provide a certain reinforced support effect for the outer frame of the lifting component.

[0021] (3) Beneficial effects

[0022] The utility model provides a positioning and locking mechanism for a high-precision parts lathe. It has the following beneficial effects:

[0023] 1. By adding a locking assembly, and by making the limit columns respectively installed on the top surface of the lower clamping block be plugged into the limit holes respectively opened on the bottom surface of the upper clamping block and passing through the interior, the plug-in cooperation of the limit columns and the limit holes can effectively prevent the problems of difficult to accurately control the motion trajectory, easy to produce deviations and difficult to effectively lock the main shaft. It solves the problems that if there is no limit assistance, the motion trajectory of the dynamic clamp is difficult to accurately control and easy to produce deviations. If the centrifugal force and inertia force at high speed will aggravate the uncertainty, the dynamic clamp and the fixed clamp will be misaligned, and it is difficult to effectively lock the main shaft.

[0024] 2. By adding a lifting assembly, limit bars are installed on the two side surfaces of the second inclined block, and the outer sides of the limit bars are slidably connected to the inner sides of the limit grooves. This coordination method can further enhance the limit control effect and prevent the second inclined block from deviating and displacing when rising. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of the main structure of the entire utility model.

[0027] Figure 2 It is a front view structural schematic diagram of the entire utility model.

[0028] Figure 3 It is a left-side half-section structural schematic diagram of the entire utility model.

[0029] Figure 4 It is a right side half-section structural schematic diagram of the utility model as a whole.

[0030] In the figure, 1. base plate; 2. pushing assembly; 21. sliding groove; 22. sliding bar; 23. first inclined block; 24. servo hydraulic cylinder; 3. lifting assembly; 31. outer frame; 32. second inclined block; 33. limiting groove; 34. limiting bar; 4. locking assembly; 41. frame; 42. upper clamping block; 43. lower clamping block; 44. limiting column; 45. limiting hole; 46. wear-resistant block; 5. auxiliary assembly; 51. cover plate; 52. support bar. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] Example 1

[0033] Reference Figures 1 to 4 , which is the first embodiment of the utility model, provides a positioning and locking mechanism for a high-precision parts lathe, including a base plate 1, a pushing component 2, a lifting component 3 and an auxiliary component 5 are respectively arranged above the base plate 1, and a locking component 4 is arranged above the lifting component 3;

[0034] The locking assembly 4 includes a frame 41 and an upper clamping block 42. The top of the upper clamping block 42 is fixedly installed on the top wall of the frame 41. A lower clamping block 43 is provided below the upper clamping block 42. Limiting columns 44 are fixedly installed on the top surface of the lower clamping block 43. Limiting holes 45 passing through the interior are respectively opened on the bottom end surface of the upper clamping block 42. The tops of the limiting columns 44 are respectively inserted into the limiting holes 45. Wear-resistant blocks 46 are respectively fixedly installed between the inner sides of the upper clamping block 42 and the lower clamping block 43.

[0035] Specifically, the pushing component 2 includes a sliding groove 21 and a sliding bar 22. The outer sides of the sliding bar 22 are slidably connected to the inner sides of the sliding groove 21. A first inclined block 23 is fixedly installed on the top surface of the sliding bar 22. A servo hydraulic cylinder 24 is fixedly installed on one end of the first inclined block 23. The lifting component 3 includes an outer frame 31. A second inclined block 32 is slidably connected to the inner side of the outer frame 31. Limiting bars 34 are fixedly installed on the two side surfaces of the second inclined block 32. Limiting grooves 33 passing through the top are respectively opened on both sides of the inner wall of the outer frame 31. The outer sides of the limiting bars 34 are slidably connected to the inner sides of the limiting grooves 33.

[0036] Furthermore, the locking assembly 4 makes the limiting columns 44 respectively installed on the top surface of the lower clamping block 43 be inserted into the limiting holes 45 respectively opened on the bottom surface of the upper clamping block 42 and passing through the interior. The plug-in cooperation between the limiting columns 44 and the limiting holes 45 can effectively prevent the problems of difficulty in accurately controlling the motion trajectory, easy deviation and difficulty in effectively locking the main shaft. The top end of the upper clamping block 42 is installed on the top wall of the frame 41, and the wear-resistant blocks 46 respectively installed between the upper clamping block 42 and the inner side of the lower clamping block 43 can lock and fix the main shaft by the wear-resistant blocks 46, so that the main shaft can be quickly locked.

[0037] The pushing component 2 can effectively push the first inclined block 23 installed at the output end through the servo hydraulic cylinder 24 to drive the sliding bar 22 installed on the bottom surface to move effectively, and the outer sides of the sliding bar 22 are slidably connected to the inner sides of the sliding grooves 21 respectively.

[0038] The lifting component 3 is connected to the second inclined block 32 by sliding on the inner side of the outer frame 31, and then through the limit bars 34 installed on the two side surfaces of the second inclined block 32, and the outer sides of the limit bars 34 are slidably connected to the inner sides of the limit grooves 33. This matching method can further enhance the limit control effect and prevent the second inclined block 32 from deviating and displacing when rising. The limit grooves 33 are respectively opened on both sides of the inner wall of the outer frame 31 and pass through the top.

[0039] Example 2

[0040] Reference Figures 1 to 4 , which is the first embodiment of the present utility model. This embodiment is based on the previous embodiment. The sliding groove 21 of the pushing component 2 is opened on the top surface of the base plate 1 and passes through the interior. The bottom side of the servo hydraulic cylinder 24 is fixedly mounted on the surface of the base plate 1. The bottom end of the outer frame 31 of the lifting component 3 is fixedly mounted on the top surface of the base plate 1 and is located above the sliding groove 21. The other end inclined surface of the first inclined block 23 is located on the bottom inclined surface of the second inclined block 32. The bottom ends of the frame 41 of the locking component 4 are respectively fixedly mounted on the two side surfaces of the outer frame 31 of the lifting component 3, and the bottom end of the lower clamping block 43 is fixedly mounted on the top surface of the second inclined block 32.

[0041] Specifically, the auxiliary component 5 includes a cover plate 51 and a support bar 52. The bottom end of the support bar 52 is fixedly mounted on the surface of the cover plate 51. The bottom surface of the cover plate 51 is fixedly mounted on the surface of the base plate 1 and is located above the sliding groove 21 and the sliding bar 22 of the pushing component 2. The top end of the support bar 52 is fixedly mounted on the surface of one end of the outer frame 31 of the lifting component 3.

[0042] Furthermore, the pushed first inclined block 23 can effectively make the inclined surface of the other end contact with the second inclined block 32, and the pushing component 2 can effectively push the first inclined block 23 installed at the output end through the servo hydraulic cylinder 24 to drive the sliding bar 22 installed on the bottom surface to move effectively. The outer sides of the sliding bar 22 are respectively slidably connected to the inner sides of the sliding grooves 21. The pushed first inclined block 22 can effectively make the inclined surface of the other end contact with the bottom inclined surface of the second inclined block 32 of the lifting component 3. Under the pushing force of the first inclined block 22, the second inclined block 32 achieves an effective lifting effect. The sliding groove 21 is opened on the top surface of the base plate 1 and passes through the inside. The bottom side of the servo hydraulic cylinder 24 is installed on the surface of the base plate 1.

[0043] The lifting assembly 3 is connected to the second inclined block 32 by sliding on the inner side of the outer frame 31, and then through the limit bars 34 installed on the two side surfaces of the second inclined block 32, and the outer sides of the limit bars 34 are slidably connected to the inner sides of the limit grooves 33. This matching method can further enhance the limit control effect and prevent the second inclined block 32 from deviation and displacement when rising. The limit grooves 33 are respectively opened on both sides of the inner wall of the outer frame 31 and pass through the top. The bottom end of the outer frame 31 is installed on the top surface of the base plate 1 and is located above the sliding groove 21.

[0044] The locking assembly 4 is achieved by making the limiting columns 44 respectively installed on the top surface of the lower clamping block 43 be inserted into the limiting holes 45 respectively opened on the bottom surface of the upper clamping block 42 and passing through the interior. The plug-in cooperation between the limiting columns 44 and the limiting holes 45 can effectively prevent the problems of difficult to accurately control the motion trajectory, easy deviation and difficulty in effectively locking the main shaft. The top of the upper clamping block 42 is installed on the top wall of the frame 41, and the wear-resistant blocks 46 respectively installed between the upper clamping block 42 and the inner side of the lower clamping block 43 are used to lock and fix the main shaft, so that the main shaft can be quickly locked. The bottom end of the frame 41 is respectively installed on the two side surfaces of the outer frame 31 of the lifting assembly 3, and the bottom end of the lower clamping block 43 is installed on the top surface of the second inclined block 32.

[0045] The auxiliary component 5 is located above the sliding groove 21 and the sliding bar 22 of the pushing component 2 and is installed on the surface of the base plate 1. The cover plate 51 can effectively play a certain limit control effect to prevent the sliding bar 22 from tilting up, and the support bar 52 installed on the surface of the cover plate 51 can effectively provide a certain reinforced support effect for the outer frame 31 of the lifting component 3, and the top of the support bar 52 is installed on the surface of one end of the outer frame 31.

[0046] The bottom inclined surface, under the pushing force of the first inclined block 23, the second inclined block 32 achieves an effective lifting effect.

[0047] The auxiliary component 5 is located above the sliding groove 21 and the sliding bar 22 of the pushing component 2 and is installed on the surface of the base plate 1. The cover plate 51 can effectively play a certain limit control effect to prevent the sliding bar 22 from tilting up, and the support bar 52 installed on the surface of the cover plate 51 can effectively provide a certain reinforced support effect for the outer frame 31 of the lifting component 3, and the top of the support bar 52 is installed on the surface of one end of the outer frame 31.

[0048] Working principle: The pushing component 2 can effectively push the first inclined block 23 installed at the output end through the servo hydraulic cylinder 24 to drive the sliding bar 22 installed on the bottom surface to move effectively. The outer sides of the sliding bar 22 are respectively slidably connected to the inner sides of the sliding grooves 21. The pushed first inclined block 23 can effectively make the inclined surface of the other end contact the inclined surface of the bottom end of the second inclined block 32 of the lifting component 3. Under the pushing force of the first inclined block 23, the second inclined block 32 achieves an effective lifting effect. The sliding groove 21 is opened on the top surface of the base plate 1 and passes through the inside. The bottom side of the servo hydraulic cylinder 24 is installed on the surface of the base plate 1.

[0049] The lifting assembly 3 is connected to the second inclined block 32 by sliding on the inner side of the outer frame 31, and then through the limit bars 34 installed on the two side surfaces of the second inclined block 32, and the outer sides of the limit bars 34 are slidably connected to the inner sides of the limit grooves 33. This matching method can further enhance the limit control effect and prevent the second inclined block 32 from deviation and displacement when rising. The limit grooves 33 are respectively opened on both sides of the inner wall of the outer frame 31 and pass through the top. The bottom end of the outer frame 31 is installed on the top surface of the base plate 1 and is located above the sliding groove 21.

[0050] The locking assembly 4 is achieved by making the limiting columns 44 respectively installed on the top surface of the lower clamping block 43 be inserted into the limiting holes 45 respectively opened on the bottom surface of the upper clamping block 42 and passing through the interior. The plug-in cooperation between the limiting columns 44 and the limiting holes 45 can effectively prevent the problems of difficult to accurately control the motion trajectory, easy deviation and difficulty in effectively locking the main shaft. The top of the upper clamping block 42 is installed on the top wall of the frame 41, and the wear-resistant blocks 46 respectively installed between the upper clamping block 42 and the inner side of the lower clamping block 43 are used to lock and fix the main shaft, so that the main shaft can be quickly locked. The bottom end of the frame 41 is respectively installed on the two side surfaces of the outer frame 31 of the lifting assembly 3, and the bottom end of the lower clamping block 43 is installed on the top surface of the second inclined block 32.

[0051] The auxiliary component 5 is located above the sliding groove 21 and the sliding bar 22 of the pushing component 2 and is installed on the surface of the base plate 1. The cover plate 51 can effectively play a certain limit control effect to prevent the sliding bar 22 from tilting up, and the support bar 52 installed on the surface of the cover plate 51 can effectively provide a certain reinforced support effect for the outer frame 31 of the lifting component 3, and the top of the support bar 52 is installed on the surface of one end of the outer frame 31.

[0052] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A positioning and locking mechanism for a high-precision parts lathe, comprising a base plate (1), characterized in that: A pushing assembly (2), a lifting assembly (3) and an auxiliary assembly (5) are respectively arranged above the base plate (1); a locking assembly (4) is arranged above the lifting assembly (3); The locking assembly (4) comprises a frame (41) and an upper clamping block (42), the top end of the upper clamping block (42) is fixedly mounted on the top wall of the frame (41), a lower clamping block (43) is provided below the upper clamping block (42), a limiting column (44) is fixedly mounted on the top surface of the lower clamping block (43), a limiting hole (45) passing through the inside is opened on the bottom end surface of the upper clamping block (42), the top end of the limiting column (44) is respectively inserted into the inside of the limiting hole (45), and a wear-resistant block (46) is fixedly mounted between the inner sides of the upper clamping block (42) and the lower clamping block (43).

2. The positioning and locking mechanism for a high-precision parts lathe according to claim 1, characterized in that: The pushing assembly (2) comprises a sliding groove (21) and a sliding bar (22), the outer sides of the sliding bar (22) are respectively slidably connected to the inner sides of the sliding groove (21), a first inclined block (23) is fixedly mounted on the top surface of the sliding bar (22), and a servo hydraulic cylinder (24) is fixedly mounted on one end of the first inclined block (23).

3. The positioning and locking mechanism for a high-precision parts lathe according to claim 1, characterized in that: The lifting assembly (3) comprises an outer frame (31), the inner side of the outer frame (31) is slidably connected to a second inclined block (32), and limiting strips (34) are fixedly mounted on both side surfaces of the second inclined block (32), and limiting grooves (33) passing through the top are respectively opened on both sides of the inner wall of the outer frame (31), and the outer sides of the limiting strips (34) are slidably connected to the inner sides of the limiting grooves (33).

4. The positioning and locking mechanism for a high-precision parts lathe according to claim 2, characterized in that: The sliding groove (21) of the pushing component (2) is opened on the top surface of the base plate (1) and penetrates the interior, the bottom side of the servo hydraulic cylinder (24) is fixedly mounted on the surface of the base plate (1), the bottom end of the outer frame (31) of the lifting component (3) is fixedly mounted on the top surface of the base plate (1) and is located above the sliding groove (21), and the other end inclined surface of the first inclined block (23) is located on the bottom end inclined surface of the second inclined block (32).

5. The positioning and locking mechanism for a high-precision parts lathe according to claim 3, characterized in that: The bottom ends of the frame (41) of the locking assembly (4) are respectively fixedly mounted on the two side surfaces of the outer frame (31) of the lifting assembly (3), and the bottom end of the lower clamping block (43) is fixedly mounted on the top surface of the second inclined block (32).

6. The positioning and locking mechanism for a high-precision parts lathe according to claim 1, characterized in that: The auxiliary component (5) comprises a cover plate (51) and a support bar (52), the bottom end of the support bar (52) is fixedly mounted on the surface of the cover plate (51), the bottom surface of the cover plate (51) is fixedly mounted on the surface of the base plate (1) and is located above the sliding groove (21) and the sliding bar (22) of the pushing component (2), and the top end of the support bar (52) is fixedly mounted on the surface of one end of the outer frame (31) of the lifting component (3).

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