Pressing pin clamp

Abstract

The utility model relates to a pressing pin clamp, which belongs to the field of clamps, and comprises a base, a rotating seat is fixedly arranged on the base, the rotating seat is rotatably connected with a rotating shaft, the rotating shaft is parallel to the front-back direction, a rotating disc is fixed on the rotating shaft, and the rotating disc is positioned on the front side of the rotating seat. The device is characterized in that a pressing mechanism is arranged at the front end of the rotating shaft and located on the front side of the rotating disc, a first rotating positioning mechanism and a second rotating positioning mechanism are arranged on the rotating shaft, the first rotating positioning mechanism is used for achieving circumferential positioning between the rotating disc and the rotating seat, and the second rotating positioning mechanism is used for achieving circumferential positioning between the rotating disc and the rotating seat. The dowel press-in device is simple in structure, the turbine shell does not need to be detached when dowels are pressed into two pin holes, operation is convenient and fast, the labor intensity of workers is reduced, the dowel press-in depth is controlled through the transition sleeve, and the dowel press-in size precision is improved.

Description

Technical Field

[0001] The utility model relates to a pressing pin fixture and belongs to the field of fixtures. Background Art

[0002] As an important component of high-end automobile engines, the main function of turbochargers is to increase the intake density of automobile engines, make the fuel combustion of gasoline engines more complete, and increase the driving force of the engine. The turbine housing is an important component of the turbocharger. Due to the structural form, processing technology and use requirements of the turbine housing, it is necessary to process pin holes on the turbine housing and press locating pins into the pin holes. The depth of the pressed locating pins needs to meet the size requirements.

[0003] The Chinese invention patent with publication number CN114876855A discloses a supercharger bearing locating pin and housing assembly and an assembly method thereof, including a housing, a bearing arranged in a through hole of the housing, and a locking pin; in the present application, the diameter of the first cylinder is smaller than the diameter of the second cylinder, and during assembly, the locking pin is first inserted from the second locating hole and then enters the cross hole, the second cylinder is at least partially press-fitted into the second locating hole of the housing, the first cylinder is at least partially arranged in the cross hole of the bearing, and the bearing is positioned in the through hole of the housing, the unique structure and unique assembly method adopted in the present application can avoid wear on the first cylinder, and the travel of the locking pin is significantly shortened, the first cylinder only needs to pass through the second locating hole, reducing the possibility of transmission wear, and reducing the requirements for the aperture matching of the four holes; and the assembly method of the present application is relatively simple and can basically succeed at one time. However, in the prior art, the operation is cumbersome and the labor intensity of the workers is high.

[0004] Therefore, a pin pressing fixture is needed to improve the convenience of operation and reduce the labor intensity of workers. Summary of the invention

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies of the prior art, a pressing pin fixture is provided which can improve the convenience of operation and reduce the labor intensity of workers.

[0006] The technical solution adopted by the utility model to solve the above problems is: a pin pressing fixture, comprising a base, a rotating seat is fixedly arranged on the base, the rotating seat is rotatably connected with a rotating shaft, the rotating shaft is parallel to the front and rear directions, a rotating disk is fixed on the rotating shaft, and the rotating disk is located at the front side of the rotating seat, characterized in that: a clamping mechanism is arranged at the front end of the rotating shaft, the clamping mechanism is located at the front side of the rotating disk, and a first rotating positioning mechanism and a second rotating positioning mechanism are arranged on the rotating shaft, the first rotating positioning mechanism is used to realize the circumferential positioning between the rotating disk and the rotating seat, and the second rotating positioning mechanism is used to realize the circumferential positioning between the turbine shell and the rotating disk;

[0007] The clamping mechanism includes a transition sleeve and a pressure plate, both of which are sleeved on the rotating shaft, and the pressure plate and the transition sleeve are distributed front and back. A clamping member is provided on the rotating shaft, and the clamping member is used to drive the pressure plate to move backward.

[0008] Preferably, the pressing member is a clamping nut, the clamping nut is threadedly connected to the rotating shaft, and the clamping nut abuts against the front side of the pressure plate.

[0009] Preferably, the transition sleeve comprises a connecting section, a pressing section and a positioning section which are sequentially distributed from front to back.

[0010] Preferably, the first rotation positioning mechanism includes a locking block, the locking block is fixedly arranged on the rotating seat, a blind hole is arranged on the front side of the locking block, a locking rod is movably inserted into the blind hole, the locking rod is slidably connected to the blind hole front and back, two locking holes are arranged on the rotating disk, locking rings are fixedly arranged in the two locking holes, and the locking ring matches the locking rod.

[0011] Preferably, a slide groove is provided on one side of the blind hole, the slide groove extends to the outer wall of the locking block, a lever is provided in the slide groove, the lever is slidably connected to the slide groove front and back, and the lever is fixedly connected to the locking rod.

[0012] Preferably, the second rotation positioning mechanism includes a fixed block, which is fixedly arranged on the front side of the rotating disk, and the first tightening screw is threadedly connected to the fixed block. A fixed plate is detachably fixed on the fixed block, and the second tightening screw is threadedly connected to the fixed plate.

[0013] Preferably, a positioning groove is provided on the rotating disk, the positioning groove matches with the fixing block, and the fixing block is inserted into the positioning groove.

[0014] Preferably, the fixed block is bolted to the rotating disk.

[0015] Preferably, it further comprises a supporting mechanism, wherein the supporting mechanism is located at the front side of the rotating disk and the supporting mechanism is located below the pressing mechanism;

[0016] The support mechanism comprises a support seat, a support roller is rotatably connected to the support seat, and a lifting unit is arranged at the bottom of the support seat, and the lifting unit is used to realize the lifting of the support seat.

[0017] Preferably, the lifting unit comprises a fixed seat, a lifting rod is vertically movably inserted into the fixed seat, a driving ring is threadedly connected to the lifting rod, the driving ring abuts against the top of the fixed seat, and the top end of the lifting rod is fixed on the support seat.

[0018] Compared with the prior art, the advantages of the utility model are:

[0019] The utility model discloses a pin pressing fixture with a simple structure. When pressing pins into two pin holes, there is no need to remove the turbine shell, the operation is convenient, the labor intensity of workers is reduced, and the pressing depth of the pins is controlled by a transition sleeve, thereby improving the pressing size accuracy of the pins. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of a press pin fixture of the utility model in a material-waiting state;

[0021] Figure 2 for Figure 1 The main view of

[0022] Figure 3 for Figure 1 Left view of

[0023] Figure 4 for Figure 1 A top view of

[0024] Figure 5 This is a three-dimensional diagram of a pin pressing fixture of the utility model in working state;

[0025] Figure 6 for Figure 5 The main view of

[0026] Figure 7 for Figure 5 Left view of

[0027] Figure 8 for Figure 5 A top view of

[0028] Fig. 9 It is a schematic diagram of the connection structure between the clamping mechanism and the rotating shaft;

[0029] Fig.10 is a three-dimensional diagram of a rotating disk;

[0030] Fig.11 is a cross-sectional view of a rotating disk;

[0031] Fig.12 It is a three-dimensional diagram of the transition sleeve;

[0032] Fig.13 A three-dimensional diagram of the supporting mechanism;

[0033] Fig.14 is a three-dimensional diagram of a second rotation positioning mechanism;

[0034] Fig.15 is a three-dimensional diagram of a first rotation positioning mechanism;

[0035] Fig.16 is a three-dimensional diagram of a locking block;

[0036] Fig.17 It is a schematic diagram of the connection structure between the shifting rod and the locking rod;

[0037] Fig.18 is a three-dimensional diagram of a turbine housing;

[0038] Fig.19 for Fig.18 Enlarged view of part A.

[0039] in:

[0040] Base 1, rotating seat 2, rotating shaft 3, rotating disk 4, supporting mechanism 5, pressing mechanism 6, first rotating positioning mechanism 7, second rotating positioning mechanism 8, turbine shell 9;

[0041] Locking hole 41, locking ring 42, positioning groove 43;

[0042] Support seat 51, support roller 52, lifting unit 53;

[0043] A fixing seat 531, a lifting rod 532, and a driving ring 533;

[0044] Transition sleeve 61, pressing plate 62, and tightening member 63;

[0045] Connecting section 611, pressing section 612, positioning section 613;

[0046] Locking block 71, blind hole 72, slide groove 73, lever 74, locking rod 75;

[0047] A fixing block 81, a first tightening screw 82, a fixing plate 83, and a second tightening screw 84;

[0048] Center hole 91, pin hole 92, pin 93, flange end 94. DETAILED DESCRIPTION

[0049] like Figure 1-19As shown, a pin pressing fixture in this embodiment includes a base 1, a rotating seat 2 is fixedly provided on the base 1, the rotating seat 2 is rotatably connected with a rotating shaft 3, the rotating shaft 3 is parallel to the front and rear directions, a rotating disk 4 is fixedly sleeved on the rotating shaft 3, the rotating disk 4 is located at the front side of the rotating seat 2, a supporting mechanism 5 is provided on the base 1, the supporting mechanism 5 is used to support the turbine shell 9, a clamping mechanism 6 is provided at the front end of the rotating shaft 3, the clamping mechanism 6 is used to realize the top of the turbine shell 9 in the front and rear directions, the supporting mechanism 5 and the clamping mechanism 6 are both located at the front side of the rotating disk 4, the supporting mechanism 5 is located below the clamping mechanism 6, a first rotating positioning mechanism 7 and a second rotating positioning mechanism 8 are provided on the rotating shaft 3, the first rotating positioning mechanism 7 is used to realize the circumferential positioning between the rotating disk 4 and the rotating seat 2, and the second rotating positioning mechanism 8 is used to realize the circumferential positioning between the turbine shell 9 and the rotating disk 4;

[0050] The clamping mechanism 6 includes a transition sleeve 61 and a pressure plate 62, both of which are sleeved on the rotating shaft 3, and the pressure plate 62 and the transition sleeve 61 are distributed front and back, and the rotating shaft 3 is provided with a pressing member 63, and the pressing member 63 is used to drive the pressure plate 62 to move backward, and the pressing member 63 is a clamping nut, which is threadedly connected to the rotating shaft 3, and the clamping nut abuts against the front side of the pressure plate 62;

[0051] The transition sleeve 61 includes a connecting section 611, a pressing section 612 and a positioning section 613 which are sequentially arranged from front to back;

[0052] During operation, firstly, the circumferential positioning between the rotating disk 4 and the rotating seat 2 is realized through the first rotation positioning mechanism 7, then, the clamping nut, the pressure plate 62 and the transition sleeve 61 are removed in sequence, and then the center hole 91 of the turbine shell 9 is sleeved on the rotating shaft 3, and the rear side arm of the turbine shell 9 is abutted against the front side of the rotating disk 4, and then, the circumferential positioning between the turbine shell 9 and the rotating disk 4 is realized through the second rotation positioning mechanism 8. In fact, two pin holes 92 are provided on the turbine shell 9, and the two pin holes 92 are distributed around the center of the worm shell. At this time, one of the pin holes 92 is at the top of the turbine shell 9, and then, the transition sleeve 61 is sleeved on the rotating shaft 3, and the positioning of the transition sleeve 61 is made The segment 613 is inserted into the central hole 91 of the turbine shell 9, and the clamping segment 612 is against the front side wall of the turbine shell 9. Then, the pressure plate 62 is sleeved on the rotating shaft 3, and the pressure plate 62 is against the front side of the connecting segment 611. Finally, the clamping nut is screwed into the front end of the rotating shaft 3, and the clamping nut pushes the pressure plate 62 to move backward. The movement of the pressure plate 62 enables the clamping segment 612 to clamp the turbine shell 9, that is, to realize the positioning of the turbine shell 9 in the front and rear directions. In addition, the transition sleeve 61 is supported by the supporting mechanism 5, that is, to realize the support of the turbine shell 9. Finally, the pin 93 is inserted into the pin hole 92 with a pressure head until the pressed end of the pin 93 is against the outer peripheral arm of the positioning segment 613.

[0053] When the pin 93 is pressed into the other pin hole 92, the first rotation positioning mechanism 7 stops the circumferential positioning between the rotating disk 4 and the rotating seat 2, so that the rotating disk 4 drives the rotating shaft 3 to rotate on the rotating seat 2, and the rotation angle is the angle formed by the center of the two pin holes 92 and the center of the turbine shell 9. After the rotating disk 4 is rotated, the circumferential positioning between the rotating disk 4 and the rotating seat 2 is realized again by the first rotation positioning mechanism 7. At this time, the pin hole 92 without the pin 93 pressed in is at the top of the turbine shell 9. The pin 93 is inserted into this pin hole 92 with a pressing head until the pressed end of the pin 93 abuts against the outer peripheral arm of the positioning section 613, that is, the action of pressing the pin 93 into the two pin holes 92 is completed.

[0054] Finally, the clamping nut, the pressing plate 62 and the transition sleeve 61 are removed in sequence, and the first rotation positioning mechanism 7 stops the circumferential positioning between the rotating disk 4 and the rotating seat 2, and the second rotation positioning mechanism 8 stops the circumferential positioning between the turbine shell 9 and the rotating disk 4, and the turbine shell 9 is removed from the rotating shaft 3, and then the next turbine shell 9 is pressed into the pin 93;

[0055] The support mechanism 5 includes a support seat 51, and two support rollers 52 are rotatably connected to the support seat 51. The two support rollers 52 are arranged symmetrically about the rotation axis 3. A lifting unit 53 is provided at the bottom of the support seat 51, and the lifting unit 53 is used to realize the lifting of the support seat 51;

[0056] The lifting unit 53 includes a fixed seat 531, a lifting rod 532 is vertically inserted into the fixed seat 531, a driving ring 533 is threadedly connected to the lifting rod 532, the driving ring 533 abuts against the top of the fixed seat 531, and the top of the lifting rod 532 is fixed on the support seat 51;

[0057] The staff holds the support seat 51 and rotates the drive ring 533, so that the lifting rod 532 moves upward on the drive ring 533, and the two support rollers 52 abut against the bottom of the transition sleeve 61, so as to support the transition sleeve 61, that is, to support the turbine shell 9;

[0058] The first rotation positioning mechanism 7 includes a locking block 71, and the locking block 71 is fixedly arranged on the rotating seat 2. A blind hole 72 is provided on the front side of the locking block 71, and a sliding groove 73 is provided on one side of the blind hole 72. The sliding groove 73 extends to the outer wall of the locking block 71, and a lever 74 is provided in the sliding groove 73. The lever 74 is slidably connected to the sliding groove 73 front and back. A locking rod 75 is movably inserted into the blind hole 72, and the locking rod 75 is fixedly connected to the lever 74. The locking rod 75 is slidably connected to the blind hole 72 front and back. Two locking holes 41 are provided on the rotating disk 4, and locking rings 42 are fixedly provided in the two locking holes 41. The locking ring 42 matches the locking rod 75. When it is necessary to press the pin 93 into one of the pin holes 92, the lever 74 is pushed to make the lever 76 When the locking nut 75 is in the unlock position, the locking nut 75 is in the unlock position, and the locking nut 75 is in the unlock position, so that the locking nut 75 can be unlocked easily.

[0059] The second rotation positioning mechanism 8 includes a fixing block 81, which is fixedly arranged on the front side of the rotating disk 4. The fixing block 81 is threadedly connected with a first tightening screw 82, and the first tightening screw 82 is used to tighten the flange end 94 of the turbine shell 9. A fixing plate 83 is detachably fixedly arranged on the fixing block 81, and a second tightening screw 84 is threadedly connected to the fixing plate 83. The second tightening screw 84 is used to tighten the outer side wall of the flange end 94 on the turbine shell 9. When the circumferential positioning is achieved between the turbine shell 9 and the rotating disk 4, the first tightening screw 82 is rotated to tighten the outer side wall of the flange end 94 on the turbine shell 9. The screw 82 is used to make the first tightening screw 82 press against the flange end 94 of the turbine shell 9, and the second tightening screw 84 is rotated to make the second tightening screw 84 press against the outer side wall of the flange end 94 on the turbine shell 9, so as to prevent the turbine shell 9 from rotating around the rotating shaft 3 on the rotating shaft 3, so as to realize the circumferential positioning between the turbine shell 9 and the rotating disk 4, and by controlling the screwing depth of the first tightening screw 82 and the second tightening screw 84, the angle between the turbine shell 9 and the rotating shaft 3 can be controlled, so that the pin hole 92 where the pin 93 needs to be pressed is at the top of the turbine shell 9, thereby facilitating the operation;

[0060] The rotating disk 4 is provided with a positioning groove 43, the positioning groove 43 matches with the fixing block 81, and the fixing block 81 is inserted into the positioning groove 43;

[0061] The fixing block 81 is bolted to the rotating disk 4;

[0062] In summary, the pin pressing fixture has a simple structure. When pressing the pins 93 into the two pin holes 92, there is no need to remove the turbine shell 9, which is convenient to operate and reduces the labor intensity of workers. Moreover, the pressing depth of the pins 93 is controlled by the transition sleeve 61 to improve the dimensional accuracy of the pins 93.

[0063] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A pin pressing fixture, comprising a base (1), a rotating seat (2) being fixedly arranged on the base (1), the rotating seat (2) being rotatably connected to a rotating shaft (3), the rotating shaft (3) being parallel to a front-rear direction, a rotating disk (4) being fixed on the rotating shaft (3), the rotating disk (4) being located at the front side of the rotating seat (2), Features: A clamping mechanism (6) is provided at the front end of the rotating shaft (3), and the clamping mechanism (6) is located at the front side of the rotating disk (4). A first rotating positioning mechanism (7) and a second rotating positioning mechanism (8) are provided on the rotating shaft (3), and the first rotating positioning mechanism (7) is used to achieve circumferential positioning between the rotating disk (4) and the rotating seat (2), and the second rotating positioning mechanism (8) is used to achieve circumferential positioning between the turbine shell (9) and the rotating disk (4); The clamping mechanism (6) comprises a transition sleeve (61) and a pressing plate (62), wherein the transition sleeve (61) and the pressing plate (62) are both sleeved on the rotating shaft (3), the pressing plate (62) and the transition sleeve (61) are arranged front and back, and a clamping member (63) is provided on the rotating shaft (3), and the clamping member (63) is used to drive the pressing plate (62) to move backward.

2. A press pin fixture according to claim 1, Features: The pressing member (63) is a clamping nut, the clamping nut is threadedly connected to the rotating shaft (3), and the clamping nut abuts against the front side of the pressing plate (62).

3. A pressing pin fixture according to claim 1, Features: The transition sleeve (61) comprises a connecting section (611), a pressing section (612) and a positioning section (613) which are sequentially arranged from front to back.

4. A pressing pin fixture according to claim 1, Features: The first rotation positioning mechanism (7) comprises a locking block (71), the locking block (71) being fixedly arranged on the rotating seat (2), a blind hole (72) being arranged on the front side of the locking block (71), a locking rod (75) being movably inserted into the blind hole (72), the locking rod (75) being slidably connected to the blind hole (72) in a forward and backward manner, and two locking holes (41) being arranged on the rotating disk (4), locking rings (42) being fixedly arranged in the two locking holes (41), the locking rings (42) matching the locking rod (75).

5. A pressing pin fixture according to claim 4, Features: A slide groove (73) is provided on one side of the blind hole (72), the slide groove (73) extending to the outer wall of the locking block (71), a lever (74) is provided in the slide groove (73), the lever (74) is slidably connected to the slide groove (73) in a forward and backward manner, and the lever (74) is fixedly connected to the locking rod (75).

6. A pressing pin fixture according to claim 1, Features: The second rotation positioning mechanism (8) comprises a fixing block (81), the fixing block (81) being fixedly arranged on the front side of the rotating disk (4), the fixing block (81) being threadedly connected to a first tightening screw (82), the fixing block (81) being detachably fixedly arranged with a fixing plate (83), the fixing plate (83) being threadedly connected to a second tightening screw (84).

7. A pressing pin fixture according to claim 6, Features: The rotating disk (4) is provided with a positioning groove (43), the positioning groove (43) matches the fixing block (81), and the fixing block (81) is inserted into the positioning groove (43).

8. A pressing pin fixture according to claim 6, Features: The fixed block (81) is bolted to the rotating disk (4).

9. A pressing pin fixture according to any one of claims 1 to 8, Features: It also comprises a supporting mechanism (5), wherein the supporting mechanism (5) is located at the front side of the rotating disk (4), and the supporting mechanism (5) is located below the pressing mechanism (6); The support mechanism (5) comprises a support seat (51), the support seat (51) is rotatably connected to a support roller (52), and a lifting unit (53) is provided at the bottom of the support seat (51), and the lifting unit (53) is used to realize the lifting of the support seat (51).

10. A pressing pin fixture according to claim 9, Features: The lifting unit (53) comprises a fixed seat (531), a lifting rod (532) is vertically movably inserted into the fixed seat (531), a driving ring (533) is threadedly connected to the lifting rod (532), the driving ring (533) is in contact with the top of the fixed seat (531), and the top end of the lifting rod (532) is fixed on the support seat (51).

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