Tool for drilling air elimination holes in spline pipe

Abstract

The utility model provides a spline pipe air elimination hole drilling tool which comprises a base, a positioning block with a containing groove is arranged on the base, movable clamping blocks are arranged on the two sides of the positioning block respectively, and the ends, close to the positioning block, of the clamping blocks are each provided with an arc-shaped face. The base is further provided with a driving assembly in transmission connection with the two clamping blocks, the driving assembly drives the two clamping blocks to be close to or away from the positioning block, the base is further provided with a vertical guide column, the guide column is sleeved with a movable plate and a spring, the movable plate is movably arranged on the guide column, and a mounting base is arranged on the face, close to the positioning block, of the movable plate. The mounting base is provided with a punching needle aligned with the containing groove, and the two opposite ends in the telescopic direction of the spring abut against the base and the movable plate correspondingly and drive the movable plate to be away from the base. The device solves the technical problems of low processing efficiency and high time cost of processing the air eliminating hole on the spline pipe blank, and has the technical effects of conveniently and quickly clamping the spline pipe blank and improving the processing efficiency of the air eliminating hole of the spline pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a spline tube drilling and air hole elimination tooling. Background Art

[0002] As a key part for transmitting force and torque, spline tubes are often used in connections with high centering accuracy requirements, large torque transmission or frequent slippage. They are widely used in automobiles and various vehicle and equipment manufacturing industries.

[0003] During the processing of the spline tube, it is necessary to process air-eliminating holes on the spline tube blank. Currently, the air-eliminating holes are generally drilled on the spline tube blank by a drilling machine. The spline tube blank needs to be positioned before drilling the air-eliminating holes, which requires a high level of proficiency of the operator. In addition, it is time-consuming to replace the spline tube blank during continuous operation, resulting in low processing efficiency and high time cost. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a spline tube drilling and degassing hole tooling, which solves the problems of low processing efficiency and high time cost in processing degassing holes on spline tube blanks in the prior art.

[0005] According to an embodiment of the utility model, a spline tube drilling and degassing tool comprises a base, a positioning block with a placement groove is provided on the base, and movable clamping blocks are respectively provided on opposite sides of the positioning block, and the clamping blocks have arc-shaped surfaces at one end close to the positioning block, and the base is also provided with a driving assembly that is respectively connected to the two clamping blocks in a transmission manner, and the driving assembly drives the two clamping blocks to approach or move away from the positioning block, and the base is also provided with a vertical guide column, and a movable plate and a spring are sleeved on the guide column, the movable plate is movably arranged on the guide column, and a mounting seat is provided on a side of the movable plate close to the positioning block, and a punch pin aligned with the placement groove is provided on the mounting seat, and the opposite ends of the spring in the expansion and contraction direction respectively abut against the base and the movable plate and drive the movable plate away from the base.

[0006] Furthermore, the driving assembly includes two symmetrically arranged swing arms and the two swing arms are respectively rotatably connected to the base, one end of the swing arm is respectively rotatably connected to a first connecting rod and the first connecting rod is rotatably connected to the clamping block in a one-to-one correspondence, and the driving assembly also includes a cylinder and a telescopic rod arranged at the output end of the cylinder, the cylinder is rotatably connected to one of the swing arms and the telescopic rod is rotatably connected to the other swing arm.

[0007] Furthermore, a vertical guide rod is provided on the base, the axis of the guide rod coincides with the symmetry axis of the two swing arms, a movable guide sleeve is provided on the guide rod and second connecting rods are rotatably connected to the opposite sides of the guide sleeve respectively, and the second connecting rods are rotatably connected to the swing arms one by one.

[0008] Furthermore, mounting blocks are respectively provided on opposite sides of the base, mounting rods are respectively provided on the mounting blocks, and a first mounting hole matching with the mounting rods is provided on the swing arm.

[0009] Furthermore, the clamping block is provided with limit blocks on two opposite sides thereof, and the limit blocks on two opposite sides of the same clamping block are respectively attached to the clamping block and form a guide groove, and the length direction of the guide groove is consistent with the moving direction of the clamping block.

[0010] Furthermore, the limiting block is provided with limiting grooves on one side close to the clamping block, and the clamping block is provided with a protruding bump, and the bump extends into the limiting groove and fits with the inner wall of the limiting groove.

[0011] Furthermore, the clamping block has a clamping portion at one end close to the positioning block, the arc surface is arranged on the clamping portion and the height of the clamping portion is higher than the top surface of the positioning block.

[0012] Furthermore, the number of the guide pillars is four and the four guide pillars are arranged in a matrix on the base, and the movable plate is provided with four through holes which respectively correspond to the guide pillars one by one.

[0013] Furthermore, the mounting seat is provided with a second mounting hole, and the movable plate is provided with a threaded hole aligned with the second mounting hole.

[0014] Furthermore, a guide plate is provided on the base, the guide plate is located between the positioning block and the movable plate, and a guide hole for the punching needle to pass through is provided on the guide plate, and the guide hole is aligned with the placement groove.

[0015] Compared with the prior art, the utility model has the following beneficial effects: by adopting a positioning block arranged on the base to place the spline tube blank to be drilled, after the spline tube blank is placed in the placement groove on the positioning block, the driving component drives the clamping blocks on both sides of the positioning block to approach the positioning block and abut against the spline tube blank, the spline tube blank can be clamped by the two clamping blocks and the position of the spline tube blank on the base can be fixed, and then the mounting seat is driven to approach the base by pressing down the movable plate, and the air-eliminating hole is punched on the spline tube blank by the punching needle arranged on the mounting seat, so that the spline tube blank can be drilled. The air-eliminating hole is formed in the workpiece, and the spring sleeved on the guide column is compressed during the pressing process of the movable plate. After the air-eliminating hole is punched, the movable plate is released to reset under the drive of the spring, and then the driving component drives the clamping block away from the positioning block to release the clamping of the spline tube blank and take out the processed spline tube blank. It solves the technical problems of low efficiency and high time cost in machining air-eliminating holes on the spline tube blank, and produces the technical effect of facilitating and quickly clamping the spline tube blank and improving the machining efficiency of the spline tube air-eliminating holes, which is conducive to shortening the processing time and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a spline tube drilling and air-eliminating hole tooling according to an embodiment of the utility model;

[0017] Figure 2 A cross-sectional view of a spline tube drilling and degassing tooling according to an embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a spline tube blank after the spline tube drilling and degassing tooling is clamped in one embodiment of the utility model;

[0019] Figure 4 It is a cross-sectional view of a spline tube blank after being clamped by a spline tube drilling and degassing tooling according to an embodiment of the utility model;

[0020] Figure 5 The present invention is a schematic structural diagram of a clamping block in a spline tube drilling and air hole elimination tooling according to an embodiment of the present invention.

[0021] In the above drawings: 1. base; 11. guide column; 12. spring; 13. mounting block; 14. mounting rod; 2. positioning block; 21. placement groove; 3. clamping block; 31. arc surface; 32. protrusion; 33. clamping part; 4. drive assembly; 41. swing arm; 42. first connecting rod; 43. cylinder; 44. telescopic rod; 5. movable plate; 51. mounting seat; 52. punch needle; 6. guide rod; 61. guide sleeve; 62. second connecting rod; 7. limit block; 71. limit groove; 8. guide plate; 81. guide hole; 100. spline tube blank. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figures 1 to 5 As shown, the embodiment of the utility model proposes a spline tube drilling and degassing tool, which is used to clamp the spline tube blank 100 to be drilled with degassing holes, so as to fix the position of the spline tube blank 100 and punch the degassing holes on the spline tube blank 100.

[0024] Please refer to Figure 1 and Figure 3 The spline tube drilling and degassing tooling includes a base 1, a positioning block 2 is provided on the base 1, and a placement groove 21 for placing a spline tube blank 100 is provided on the positioning block 2, and movable clamping blocks 3 are respectively provided on the opposite sides of the positioning block 2, and the clamping blocks 3 have arc surfaces 31 on the sides close to the positioning block 2 so that the clamping blocks 3 can fit with the spline tube blank 100 placed in the placement groove 21, and the base 1 is also provided with a driving component 4 respectively connected to the two clamping blocks 3 in a transmission manner, and the driving component 4 is used to drive the two clamping blocks 3 to approach or move away from the positioning block 2 and clamp the spline tube blank 100 when the two clamping blocks 3 are close to the positioning block 2; the base 1 is also provided with There is a vertical guide column 11, on which a movable plate 5 and a spring 12 are sleeved. The movable plate 5 is movably arranged on the guide column 11 and a mounting seat 51 is provided on a side of the movable plate 5 close to the positioning block 2. A punching needle 52 aligned with the placement groove 21 is provided on the mounting seat 51. By pressing down the movable plate 5 to make the punching needle 52 extend into the placement groove 21, an air-eliminating hole can be punched on the spline tube blank 100 placed in the placement groove 21. The opposite ends of the spring 12 in the expansion and contraction direction respectively abut against the base 1 and the movable plate 5 and drive the movable plate 5 to move away from the base 1. The spring 12 is used to drive the movable plate 5 to reset after the air-eliminating hole is punched.

[0025] Specifically, the operation steps of machining the degassing hole on the spline tube blank 100 using the spline tube drilling degassing hole tool provided in this embodiment are as follows: first, the spline tube blank 100 is placed in the placement groove 21, and the driving component 4 drives the two clamping blocks 3 to approach the positioning block 2 and abut against the spline tube blank 100, at which time the two clamping blocks 3 clamp the spline tube blank 100 and fix the position of the spline tube blank 100 on the base 1, and then the movable plate 5 is pressed down to drive the mounting seat 51 to approach the base 1, so that the punch 52 is on the spline tube blank The degassing holes can be punched on the blank 100 to process the degassing holes on the spline tube blank 100, and the spring 12 sleeved on the guide column 11 is compressed during the downward pressing of the movable plate 5. After the degassing holes are punched, the movable plate 5 is released so that the movable plate 5 is reset under the drive of the spring 12, and then the driving component 4 drives the clamping block 3 away from the positioning block 2 to release the clamping of the spline tube blank 100. After the processed spline tube blank 100 is taken out, other spline tube blanks 100 to be processed are placed in and the above operations are repeated to continuously operate. The spline tube drilling degassing hole tooling provided in this embodiment can quickly clamp the spline tube blank 100, and quickly punch degassing holes on the spline tube blank 100 through the punching needle 52, effectively improving the processing efficiency of the spline tube degassing holes, which is conducive to shortening the processing time and saving costs.

[0026] like Figure 2 and Figure 4As shown, in this embodiment, the driving assembly 4 includes two symmetrically arranged swing arms 41 and the two swing arms 41 are respectively rotatably connected to the base 1, one end of the swing arm 41 is respectively rotatably connected to a first connecting rod 42 and the first connecting rod 42 is rotatably connected to the clamping block 3 in a one-to-one correspondence, the driving assembly 4 also includes a cylinder 43 and a telescopic rod 44 arranged at the output end of the cylinder 43, the cylinder 43 is rotatably connected to one of the swing arms 41 and the telescopic rod 44 is rotatably connected to the other swing arm 41. When the telescopic rod 44 is extended under the drive of the cylinder 43, it pushes the two swing arms 41 to rotate synchronously, and the first connecting rod 42 pushes the two clamping blocks 3 to move simultaneously. At this time, the two clamping blocks 3 are close to the positioning block 2 under the push of the first connecting rod 42 and abut against the spline tube blank 100 placed in the placement groove 21 to clamp the spline tube blank 100; when the telescopic rod 44 is shortened under the drive of the cylinder 43, it pulls the two swing arms 41 to rotate synchronously, and the first connecting rod 42 pulls the two clamping blocks 3 to move simultaneously. At this time, the two clamping blocks 3 are pulled away from the positioning block 2 and disengaged from the spline tube blank 100 placed in the placement groove 21 under the pull of the first connecting rod 42, thereby releasing the clamping of the spline tube blank 100, that is, the telescopic rod 44 is extended or shortened by the cylinder 43 to drive the clamping block 3 to move, so as to facilitate the operation of the spline tube drilling and degassing tooling.

[0027] In detail, the base 1 is also provided with a vertical guide rod 6, the axis of the guide rod 6 coincides with the symmetry axis of the two swing arms 41, a movable guide sleeve 61 is sleeved on the guide rod 6, and the opposite sides of the guide sleeve 61 are respectively rotatably connected with a second connecting rod 62, and the second connecting rod 62 is rotatably connected with the swing arm 41 in a one-to-one correspondence. A vertical guide rod 6 is arranged on the base 1 and a movable guide sleeve 61 is sleeved on the guide rod 6. The guide sleeve 61 is rotatably connected to the second connecting rod 62 and one end of the second connecting rod 62 away from the guide sleeve 61 is rotatably connected to the swing arm 41. When the swing arm 41 rotates under the drive of the cylinder 43 and the telescopic rod 44, the guide sleeve 61 slides on the guide rod 6 driven by the second connecting rod 62. The swing of the swing arm 41 on the base 1 is limited by the cooperation between the guide rod 6 and the guide sleeve 61 arranged in the middle of the two swing arms 41, ensuring that the two clamping blocks 3 are synchronously moved to a position abutting against the spline tube blank 100 when the swing arm 41 rotates, which is beneficial to improving the stability of the spline tube drilling and degassing tooling during operation.

[0028] like Figure 3 and Figure 4As shown, mounting blocks 13 are respectively provided on opposite sides of the base 1, mounting rods 14 are respectively provided on the mounting blocks 13, and the swing arm 41 is provided with a first mounting hole matched with the mounting rod 14. By providing the mounting block 13 on the base 1, and providing the mounting rod 14 on the mounting block 13 to match the first mounting hole on the swing arm 41, the swing arm 41 is rotatably connected to the base 1, and the swing arm 41 can be smoothly rotated relative to the base 1.

[0029] Please combine Figure 2 and Figure 3 The clamping block 3 is provided with stop blocks 7 on opposite sides thereof, and the stop blocks 7 on opposite sides of the same clamping block 3 are respectively attached to the clamping block 3 and enclose a guide groove, and the length direction of the guide groove is consistent with the moving direction of the clamping block 3. The stop blocks 7 are used to limit the moving direction of the clamping block 3 on the base 1 to prevent unexpected deviation of the clamping block 3 during its movement, and ensure that the arc surface 31 is attached to the spline tube blank 100 in the placement groove 21 when the clamping block 3 is close to the positioning block 2.

[0030] Specifically, the limiting block 7 is provided with limiting grooves 71 on one side close to the clamping block 3, and the clamping block 3 is provided with a protruding convex block 32, and the convex block 32 extends into the limiting groove 71 and fits with the inner wall of the limiting groove 71. The limiting groove 71 is provided on the clamping block 3, and the convex block 32 cooperating with the limiting groove 71 is provided on the clamping block 3, so that the clamping block 3 is kept in the guide groove during the movement, preventing the clamping block 3 from being separated from the limiting block 7, and improving the stability of the cooperation between the clamping block 3 and the limiting block 7.

[0031] like Figure 4 and Figure 5 As shown, the clamping block 3 has a clamping portion 33 at one end close to the positioning block 2, and the arc surface 31 is arranged on the clamping portion 33 and the height of the clamping portion 33 is higher than the top surface of the positioning block 2. The arc surface 31 is arranged on the clamping portion 33 and the clamping portion 33 is staggered with the positioning block 2, so that when the clamping block 3 is close to the positioning block 2, the clamping portion 33 can avoid direct contact between the positioning block 2 and the spline pipe blank 100, thereby preventing the clamping block 3 and the positioning block 2 from interfering with each other.

[0032] Please refer to Figure 1 and Figure 3, the number of the guide pillars 11 is four and the four guide pillars 11 are arranged in a matrix on the base 1, and the movable plate 5 is provided with four through holes that respectively correspond to the guide pillars 11. The four guide pillars 11 are arranged on the base 1, and the through holes that correspond to the four guide pillars 11 are arranged on the movable plate 5, which improves the stability of the cooperation between the movable plate 5 and the base 1 while preventing the movable plate 5 from tilting when moving, ensuring that the punching needle 52 is aligned with the spline tube blank 100 in the placement groove 21 during the movement of the movable plate 5, preventing the movable plate 5 from unexpectedly deviating from the preset position due to the degassing holes machined on the spline tube blank 100, and the spline tube degassing hole drilling tooling can be installed on the punching machine and the movable plate 5 is driven downward by the punching machine, thereby further improving the processing efficiency.

[0033] In detail, the mounting seat 51 is provided with a second mounting hole, and the movable plate 5 is provided with a threaded hole aligned with the second mounting hole. The mounting seat 51 can be fixed to the movable plate 5 by using a threaded connector to pass through the second mounting hole on the mounting seat 51 and to cooperate with the threaded hole on the movable plate 5, so that the mounting seat 51 and the movable plate 5 can cooperate reliably. At the same time, the mounting seat 51 can be replaced and the punching needles 52 of different sizes can be installed on the movable plate 5, so as to facilitate the processing of degassing holes with different apertures on the spline tube blank 100, thereby improving the versatility of the spline tube degassing hole drilling tooling.

[0034] like Figure 3 As shown, the base 1 is further provided with a guide plate 8, the guide plate 8 is located between the positioning block 2 and the movable plate 5, and the guide plate 8 is provided with a guide hole 81 for the punching needle 52 to pass through, and the guide hole 81 is aligned with the placement groove 21. The guide plate 8 is arranged on the base 1 to guide the movement of the punching needle 52, and the movable plate 5 stops pressing down after moving to abut against the guide plate 8, thereby controlling the movement stroke of the punching needle 52, preventing the punching needle 52 from colliding with the positioning block 2 and causing damage to the spline tube drilling and degassing hole tooling.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A spline tube drilling and air hole removal tool, characterized in that: The cam is an angular channel formed on a pair of camshafts, the channel having a first end facing the first and second end portions of the camshafts, the second end having a second end facing the first and second end portions of the camshafts being pivotally connected to the base and the second end having a second end facing the first and second end portions of the camshafts.

2. A spline tube drilling and air hole removal tool as claimed in claim 1, characterized in that: The driving assembly includes two symmetrically arranged swing arms, and the two swing arms are respectively rotatably connected to the base, one end of the swing arm is respectively rotatably connected to a first connecting rod, and the first connecting rod is rotatably connected to the clamping block in a one-to-one correspondence, and the driving assembly also includes a cylinder and a telescopic rod arranged at the output end of the cylinder, the cylinder is rotatably connected to one of the swing arms, and the telescopic rod is rotatably connected to the other swing arm.

3. A spline tube drilling and air hole removal tool as claimed in claim 2, characterized in that: A vertical guide rod is also provided on the base, the axis of the guide rod coincides with the symmetry axis of the two swing arms, a movable guide sleeve is sleeved on the guide rod and second connecting rods are rotatably connected to the opposite sides of the guide sleeve respectively, and the second connecting rods are rotatably connected to the swing arms in a one-to-one correspondence.

4. A spline tube drilling and air hole removal tool as claimed in claim 2, characterized in that: Mounting blocks are respectively arranged on opposite sides of the base, mounting rods are respectively arranged on the mounting blocks, and a first mounting hole matched with the mounting rods is arranged on the swing arm.

5. A spline tube drilling and air hole removal tool as claimed in claim 1, characterized in that: The clamping block is provided with limit blocks on opposite sides thereof, and the limit blocks on opposite sides of the same clamping block are respectively attached to the clamping block and enclose a guide groove, and the length direction of the guide groove is consistent with the moving direction of the clamping block.

6. A spline tube drilling and air hole removal tool as claimed in claim 5, characterized in that: The limiting block is provided with limiting grooves on one side close to the clamping block. The clamping block is provided with a protruding bump which extends into the limiting groove and fits with the inner wall of the limiting groove.

7. A spline tube drilling and air hole removal tool as claimed in claim 1, characterized in that: The clamping block has a clamping portion at one end close to the positioning block, the arc surface is arranged on the clamping portion and the height of the clamping portion is higher than the top surface of the positioning block.

8. A spline tube drilling and air hole removal tool as claimed in claim 1, characterized in that: The number of the guide posts is four and the four guide posts are arranged in a matrix on the base. The movable plate is provided with four through holes which respectively correspond to the guide posts one by one.

9. A spline tube drilling and air hole removal tool as claimed in claim 1, characterized in that: The mounting seat is provided with a second mounting hole, and the movable plate is provided with a threaded hole aligned with the second mounting hole.

10. A spline tube drilling and air hole removal tool as claimed in claim 1, characterized in that: The base is also provided with a guide plate, the guide plate is located between the positioning block and the movable plate, and the guide plate is provided with a guide hole for the punching needle to pass through, and the guide hole is aligned with the placement groove.

Images