Eccentric cutting clamp system of hydraulic torque converter assembly

Abstract

An eccentric cutting clamp system of a hydraulic torque converter assembly comprises a positioning driving device, a lever floating pressing device and a positioning column aligning device. According to the eccentric cutting clamp system for the hydraulic torque converter assembly, the lever floating pressing device replaces an original axial spring type pre-pressing device, an axial spring is changed into a radial spring, potential safety hazards of manual clamping are eliminated, and meanwhile the clamping force is increased through centrifugal force; according to the eccentric cutting clamp system for the hydraulic torque converter assembly, the positioning driving device and the positioning column aligning device replace a positioning clamping mechanism and a positioning auxiliary supporting component, so that positioning and driving clamping are separately designed; the hydraulic torque converter assembly is suitable for increasing the length-diameter ratio of the pump wheel shaft sleeve of a product and (or) obviously changing the coaxiality deviation value of the pump wheel shaft sleeve and the positioning column, and the over-positioning phenomenon is eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing a hydraulic torque converter, and in particular to an eccentric cutting fixture system for a hydraulic torque converter assembly. Background Art

[0002] The torque converter is an important component in AT, CVT or other automatic transmissions. It is installed between the engine and the transmission. The pump sleeve of the torque converter is installed on the transmission, and the positioning column is connected to the engine. It can transmit speed and torque steplessly. The torque converter with high product precision has better adaptability and longer machine service life.

[0003] The existing turning fixture of the torque converter assembly mainly consists of a fixture body, a positioning clamping mechanism, an auxiliary clamping mechanism, a positioning auxiliary support component, and a sealing positioning support component. Before clamping, the sealing positioning support component is manually installed into the inner cavity of the torque converter assembly, and then the torque converter assembly is installed into the fixture. The positioning clamping mechanism and the positioning auxiliary support component jointly assume the positioning function, and at the same time, the clamping workpiece force formed by the friction force generated by the positioning clamping mechanism and the auxiliary clamping mechanism with the workpiece resists the cutting force, thereby realizing turning.

[0004] The main disadvantages of this turning fixture are: first, when clamping the workpiece, it is necessary to manually overcome the axial pre-pressure of the spring before the workpiece can be loaded into the positioning clamping mechanism, which poses a safety hazard; second, the fixture has high requirements on the product structure and is not suitable for products with excessive coaxiality between the impeller sleeve and the positioning column of the torque converter or with a large aspect ratio of the impeller sleeve. When clamping the above products, over-positioning will occur, the product will be obviously deformed during clamping, and the product processing accuracy is low. Summary of the invention

[0005] The object of the present invention is to provide an eccentric cutting fixture system for a hydraulic torque converter assembly, comprising: a positioning drive device, a lever floating clamping device, and a positioning column centering device.

[0006] The positioning drive device is used to position the pump wheel sleeve of the torque converter assembly on the fixture body.

[0007] The lever floating clamping device is used for clamping the hydraulic torque converter assembly.

[0008] The positioning column centering device is used to position the positioning column of the hydraulic torque converter assembly and adjust the eccentricity of the pump wheel sleeve and the positioning column of the hydraulic torque converter assembly.

[0009] Furthermore, the positioning drive device includes a short cylindrical jacket, a center limiting shaft, a positioning support shaft, and a driving shaft.

[0010] The short cylindrical jacket is a frustum-shaped structure as a whole, and a through hole I is provided in the center along the axis.

[0011] The through hole I is provided with a chamfer on one side close to the top surface of the short cylindrical jacket cone, and the axial length of the other side is smaller than the axial length of the through hole I center.

[0012] The axial length of the through hole I matches the pump wheel sleeve of the torque converter assembly.

[0013] A groove I is provided on the outer circle of the short cylindrical jacket on the side close to the top surface of the frustum, and a blind hole I is provided on the outer circle of the short cylindrical jacket on the side close to the bottom surface of the frustum.

[0014] The outer diameter of the short cylindrical jacket matches the tapered sleeve hole of the fixture body.

[0015] One end of the center limit shaft matches the center hole of the hydraulic torque converter assembly, and the other end is inserted into the positioning support shaft.

[0016] The positioning support shaft is a stepped rotating body structure as a whole, and an axis hole matching one end of the central limiting shaft is provided at the center of the top along the axis.

[0017] A plurality of grooves I are provided at the bottom of the positioning support shaft.

[0018] A boss I is provided on the outer side of the bottom of the positioning support shaft, and a groove II is provided above the boss I on the outer side of the positioning support shaft.

[0019] The driving shaft is a cylindrical structure, and a boss II adapted to the clamp body is provided at the center of the bottom.

[0020] The top of the driving shaft is provided with a claw I which matches the groove I of the positioning support shaft.

[0021] The top of the driving shaft is provided with a plurality of countersunk screw holes along the axial direction.

[0022] Install one end of the center limit shaft in the center hole of the torque converter assembly, and insert the other end into the positioning support shaft. Put a sealing ring on the groove II of the positioning support shaft. The positioning support shaft is inserted into the pump impeller sleeve of the torque converter assembly, and the boss I is against the pump impeller sleeve of the torque converter assembly. Put the short cylindrical sleeve on the outside of the pump impeller sleeve of the torque converter assembly. The groove I of the short cylindrical sleeve is connected to the pull rod of the fixture body, and the limit screw is installed in the blind hole I of the short cylindrical sleeve. Use screws to fix the countersunk screw hole of the drive shaft to the fixture body, and insert the claw I of the drive shaft into the groove I of the positioning support shaft to complete the sealing and positioning of the pump impeller sleeve of the torque converter assembly.

[0023] Furthermore, the positioning drive device also includes an elastic sleeve.

[0024] The elastic sleeve is installed on the outer side of the first step of the positioning support shaft.

[0025] Furthermore, the material of the short cylindrical jacket includes high-quality carbon structural steel and alloy steel.

[0026] The material of the positioning support shaft includes high-quality carbon structural steel and alloy steel.

[0027] The material of the driving shaft includes high-quality carbon structural steel and alloy steel.

[0028] Furthermore, the lever floating clamping device includes a main push plate and a plurality of lever push plates of the same number, a lever shaft, and a clamping claw II.

[0029] The main push plate is a frustum structure, and a through hole II is provided in the center along the axial direction.

[0030] The main push plate is provided with a plurality of through grooves along the axial direction.

[0031] The through hole II and the through groove match the clamp body.

[0032] The lever push plate is a rectangular plate structure, and one side of the bottom is provided with an inner conical surface matching the frustum of the main push plate.

[0033] A blind hole II is provided on the top of the lever push plate for installing a return spring.

[0034] A screw hole I is provided on one end surface of the lever push plate for installing a clamping claw II.

[0035] A through hole III is provided at the bottom of the screw hole I for installing the lever shaft.

[0036] The axial direction of the through hole III is perpendicular to the axial direction of the screw hole I and the axial direction of the blind hole II.

[0037] The main push plate is fixedly mounted on the fixture body and fixed with a plurality of lever push plates. The inner conical surface of the lever push plate is pressed against the main push plate, and the blind hole II is connected to the fixture body through a reset spring. The lever shaft and the claw II are fixedly mounted on the lever push plate.

[0038] When the torque converter assembly moves toward the clamp body, the lever push plate pushes against the main push plate and moves toward the clamp body, compressing the return spring and driving the clamping claw II to clamp the torque converter assembly through the lever shaft.

[0039] When the torque converter assembly moves away from the clamp body, the return spring is relaxed, and the lever shaft drives the clamping claw II to release the torque converter assembly.

[0040] Furthermore, the material of the main push plate includes high-quality carbon structural steel and alloy steel.

[0041] The material of the lever push plate includes high-quality carbon structural steel and alloy steel.

[0042] Furthermore, the positioning column centering device includes a bearing baffle, a positioning shaft, an eccentric adjustment sleeve, a tail tapered handle shaft, a self-aligning bearing, and a plurality of rolling ball bearings.

[0043] The bearing baffle is a cylindrical structure, and a through hole IV is provided at the center of the top surface along the axis.

[0044] The top surface of the bearing baffle is provided with a plurality of screw holes II, and the screw holes II are evenly surrounded by the through hole IV.

[0045] The positioning shaft is a stepped rotating body structure as a whole, and a tapered hole is provided at the center of the bottom along the axis.

[0046] The outer diameter of the first step of the positioning shaft matches the inner diameter of the self-aligning bearing, the outer diameter of the second step matches the inner hole of the rolling ball bearing, and a chamfer is provided on one side of the third step close to the second step.

[0047] The eccentric adjustment sleeve is a stepped rotating body structure.

[0048] A groove II is provided at the top center of the eccentric adjustment sleeve along the axis, and a groove III is provided at the bottom center of the eccentric adjustment sleeve along the axis, and the grooves II and III are communicated through a through hole V.

[0049] A plurality of through holes VI are radially arranged on the groove wall of the groove III for mounting the tail tapered handle shaft.

[0050] The top surface of the eccentric adjustment sleeve is provided with a screw hole III which is adapted to the screw hole II of the bearing baffle.

[0051] The stepped surface of the eccentric adjustment sleeve is provided with a plurality of screw holes IV along the axis for fastening to the tail tapered handle shaft.

[0052] A blind hole III is radially arranged on the outer side of the second step of the eccentric adjustment sleeve.

[0053] The tail tapered shaft is fixedly installed in the groove III of the eccentric adjustment sleeve through the through hole VI and the screw hole IV of the eccentric adjustment sleeve. The self-aligning bearing and the rolling ball bearing are placed in the groove II of the eccentric adjustment sleeve, the bearing baffle is fixedly installed on the eccentric adjustment sleeve by screws, and the positioning shaft is inserted into the through hole IV of the bearing baffle, so that the self-aligning bearing and the rolling ball bearing are respectively sleeved on the first step and the second step outer diameter of the positioning shaft. The tapered hole of the positioning shaft is used to resist the positioning column of the torque converter assembly, and the positioning column of the torque converter assembly is aligned by the self-aligning bearing. By installing a round rod at the blind hole III of the eccentric adjustment sleeve and loosening the screws installed at the screw hole IV of the eccentric adjustment sleeve, the eccentricity of the pump wheel sleeve and the positioning column of the torque converter assembly is adjusted.

[0054] Furthermore, the material of the positioning shaft includes high-quality carbon structural steel and alloy steel.

[0055] Furthermore, the material of the eccentric adjustment sleeve includes high-quality carbon structural steel and alloy steel.

[0056] Furthermore, the diameter of the through hole V is smaller than the diameter of the outer ring of the self-aligning bearing, so as to limit the axial movement of the self-aligning bearing.

[0057] The technical effect of the present invention is unquestionable. The present invention provides an eccentric cutting fixture system for a torque converter assembly, which effectively compensates for the eccentricity of the product or the eccentricity caused by clamping, and improves the processing accuracy of the product. The eccentric cutting fixture system of the present invention greatly broadens the product accuracy range, reduces the clamping deformation, improves the product processing accuracy, and is easy to use and easy to promote and apply.

[0058] The lever floating clamping device of the eccentric cutting fixture system of the hydraulic torque converter assembly of the present invention replaces the original axial spring pre-clamping device, and changes the axial spring into a radial spring, thereby eliminating the safety hazard of manual clamping and increasing the clamping force by utilizing centrifugal force; the positioning drive device and the positioning column centering device of the eccentric cutting fixture system of the hydraulic torque converter assembly of the present invention replace the positioning clamping mechanism and the positioning auxiliary support component, so that the positioning and the driving clamping are designed separately, which adapts to the hydraulic torque converter assembly with an increased aspect ratio of the pump impeller sleeve and (or) a significant change in the coaxiality deviation value between the pump impeller sleeve and the positioning column, and eliminates the over-positioning phenomenon.

[0059] The present invention starts from the process design and detection principle, adopts a separate design for positioning and drive clamping, and adopts a solution that the design datum, process datum and detection datum are consistent. It can adapt to the characteristics of the increased aspect ratio of the impeller sleeve of various products and the obvious change in the coaxiality deviation value between the impeller sleeve and the positioning column. Assisted by appropriate clamping force and process parameters, it effectively solves the problem of poor processing quality caused by the large eccentricity of the torque converter assembly, improves product quality and guarantees customer needs.

[0060] The present invention adopts the lever floating clamping device, the positioning drive device and the positioning column centering device, which mainly has the following effects:

[0061] 1. Changing the axial spring preload to radial spring preload eliminates the potential safety hazard of manual clamping and utilizes centrifugal force to increase the clamping force;

[0062] 2. It eliminates the over-positioning phenomenon caused by poor coaxiality of the torque converter assembly or large aspect ratio of the pump impeller sleeve, and eliminates the clamping deformation caused by over-positioning;

[0063] 3. The anti-eccentricity positioning system can effectively compensate for the eccentricity of the product or the eccentricity caused by clamping, and improve the processing accuracy of the product;

[0064] 4. It can adapt to the cutting processing of torque converter assemblies with different structures. The design, process benchmarks and inspection benchmarks are highly consistent, the cutting performance is stable, the product precision is high and the consistency is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 The schematic diagram of the fixture structure of the existing torque converter assembly is shown;

[0066] Figure 2 It is a structural schematic diagram of the present invention;

[0067] Figure 3 It is a schematic diagram of the short cylindrical jacket structure;

[0068] Figure 4 for Figure 3 A partial enlarged schematic diagram of the short cylindrical jacket Ⅰ;

[0069] Figure 5 It is a schematic diagram of the positioning support shaft structure;

[0070] Figure 6 Schematic diagram of the drive shaft structure;

[0071] Figure 7 This is a schematic diagram of the main push plate structure;

[0072] Figure 8 It is a schematic diagram of the lever push plate structure;

[0073] Fig. 9 It is a schematic diagram of the positioning shaft structure;

[0074] Fig.10 It is a schematic diagram of the structure of the eccentric adjustment sleeve;

[0075] In the figure, the fixture body 1, the positioning drive device 2, the short cylindrical jacket 201, the through hole I2011, the groove I2012, the blind hole I2013, the center limit shaft 202, the elastic sleeve 203, the positioning support shaft 204, the shaft hole 2041, the groove I2042, the groove II2043, the drive shaft 205, the claw I2051, the countersunk screw hole 2052, the lever floating clamping device 3, the main push plate 301, the through hole II3011, the through groove 3012, the lever push plate 302, the inner conical surface 3021, the blind hole II3022, the screw hole I3023, the through hole III3024 , lever shaft 303, claw II304, torque converter assembly 4, pump wheel sleeve 401, positioning column 402, positioning column centering device 5, bearing baffle 501, through hole IV5011, screw hole II5012, positioning shaft 502, tapered hole 5021, eccentric adjustment sleeve 503, groove II5031, groove III5032, through hole V5033, through hole VI5034, screw hole III5035, screw hole IV5036, blind hole III5037, tail tapered handle shaft 504, positioning clamping mechanism 6, axial auxiliary clamping device 7, auxiliary positioning support 8. DETAILED DESCRIPTION

[0076] The present invention is further described below in conjunction with the embodiments, but it should not be understood that the above subject matter of the present invention is limited to the following embodiments. Without departing from the above technical ideas of the present invention, various substitutions and changes are made according to the common technical knowledge and customary means in the art, which should all be included in the protection scope of the present invention.

[0077] Embodiment 1:

[0078] See also Figures 1 to 10 , an eccentric cutting fixture system for a hydraulic torque converter assembly, comprising: a positioning drive device 2, a lever floating clamping device 3, and a positioning column centering device 5.

[0079] The positioning drive device 2 is used to position the pump impeller sleeve 401 of the torque converter assembly 4 on the fixture body 1.

[0080] The lever floating clamping device 3 is used to clamp the hydraulic torque converter assembly 4 .

[0081] The positioning column centering device 5 is used to position the positioning column 402 of the torque converter assembly 4 and adjust the eccentricity of the pump wheel sleeve 401 and the positioning column 402 of the torque converter assembly 4.

[0082] Embodiment 2:

[0083] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in Example 1. Furthermore, the positioning drive device 2 includes a short cylindrical sleeve 201, a center limit shaft 202, a positioning support shaft 204, and a drive shaft 205.

[0084] The short cylindrical jacket 201 is a frustum-shaped structure as a whole, and a through hole I2011 is provided in the center along the axis.

[0085] The through hole 12011 is provided with a chamfer on one side close to the top surface of the frustum of the short cylindrical jacket 201, and the axial length of the other side is smaller than the axial length of the center of the through hole 12011.

[0086] The axial length of the through hole I2011 matches the pump wheel sleeve 401 of the torque converter assembly 4.

[0087] The short cylindrical jacket 201 has a groove 12012 on its outer circle near the top surface of the cone, and a blind hole 12013 on its outer circle near the bottom surface of the cone.

[0088] The outer diameter of the short cylindrical jacket 201 matches the tapered sleeve hole of the fixture body 1 .

[0089] One end of the center limit shaft 202 matches the center hole of the torque converter assembly 4 , and the other end is inserted into the positioning support shaft 204 .

[0090] The positioning support shaft 204 is a stepped rotating body structure as a whole, and an axis hole 2041 matching one end of the central limiting shaft 202 is provided at the center of the top along the axis.

[0091] The bottom of the positioning support shaft 204 is provided with a plurality of grooves I2042.

[0092] A boss I is provided on the outer side of the bottom of the positioning support shaft 204 , and a groove II2043 is provided above the boss I on the outer side of the positioning support shaft 204 .

[0093] The driving shaft 205 is a cylindrical structure, and a boss II adapted to the clamp body 1 is provided at the center of the bottom.

[0094] The top of the driving shaft 205 is provided with a claw I2051 that matches the groove I2042 of the positioning support shaft 204.

[0095] A plurality of countersunk screw holes 2052 are axially defined at the top of the driving shaft 205 .

[0096] Install one end of the center limit shaft 202 in the center hole of the torque converter assembly 4, and insert the other end into the positioning support shaft 204. Put a sealing ring on the groove II2043 of the positioning support shaft 204. The positioning support shaft 204 is inserted into the pump impeller sleeve 401 of the torque converter assembly 4, and the boss I is against the pump impeller sleeve 401 of the torque converter assembly 4. Put the short cylindrical jacket 201 on the outside of the pump impeller sleeve 401 of the torque converter assembly 4. The groove I2012 of the short cylindrical jacket 201 is connected to the pull rod of the fixture body 1, and the limit screw is installed at the blind hole I2013 of the short cylindrical jacket 201. The countersunk screw hole 2052 of the drive shaft 205 is fixed to the fixture body 1 by screws, and the claw 12051 of the drive shaft 205 is inserted into the groove 12042 of the positioning support shaft 204 to complete the sealing and positioning of the pump wheel sleeve 401 of the torque converter assembly 4.

[0097] Embodiment 3:

[0098] A torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of Embodiments 1 to 2. Furthermore, the positioning drive device 2 also includes an elastic sleeve 203.

[0099] The elastic sleeve 203 is installed outside the first step of the positioning support shaft 204 .

[0100] Embodiment 4:

[0101] A torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of Examples 1 to 3. Furthermore, the material of the short cylindrical jacket 201 includes high-quality carbon structural steel and alloy steel.

[0102] The material of the positioning support shaft 204 includes high-quality carbon structural steel and alloy steel.

[0103] The material of the driving shaft 205 includes high-quality carbon structural steel and alloy steel.

[0104] Embodiment 5:

[0105] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of embodiments 1 to 4. Furthermore, the lever floating clamping device 3 includes a main push plate 301 and a plurality of lever push plates 302, a lever shaft 303, and a clamping claw II 304 of the same number.

[0106] The main push plate 301 is a frustum structure, and a through hole II3011 is provided in the center along the axial direction.

[0107] The main push plate 301 is provided with a plurality of through slots 3012 along the axial direction.

[0108] The through hole II3011 and the through groove 3012 match the clamp body 1.

[0109] The lever push plate 302 is a rectangular plate structure, and an inner conical surface 3021 matching the frustum of the main push plate 301 is provided on one side of the bottom.

[0110] The top of the lever push plate 302 is provided with a blind hole II3022 for installing a return spring.

[0111] A screw hole I3023 is provided on one end surface of the lever push plate 302 for installing a claw II304.

[0112] A through hole III3024 is provided at the bottom of the screw hole I3023 for installing the lever shaft 303.

[0113] The axial direction of the through hole III3024 is perpendicular to the axial direction of the screw hole I3023 and the axial direction of the blind hole II3022.

[0114] The main push plate 301 is fixedly mounted on the fixture body 1 and fixed by a plurality of lever push plates 302. The inner conical surface 3021 of the lever push plate 302 is pressed against the main push plate 301, and the blind hole II3022 is connected to the fixture body 1 through a return spring. The lever shaft 303 and the claw II304 are fixedly mounted on the lever push plate 302.

[0115] When the torque converter assembly 4 moves toward the clamp body 1 , the lever push plate 302 pushes against the main push plate 301 and moves toward the clamp body 1 , compressing the return spring and driving the clamping claw II304 to clamp the torque converter assembly 4 through the lever shaft 303 .

[0116] When the torque converter assembly 4 moves away from the clamp body 1 , the return spring is relaxed, and the lever shaft 303 drives the claw II304 to release the torque converter assembly 4 .

[0117] Embodiment 6:

[0118] A torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of embodiments 1 to 5. Furthermore, the material of the main push plate 301 includes high-quality carbon structural steel and alloy steel.

[0119] The material of the lever push plate 302 includes high-quality carbon structural steel and alloy steel.

[0120] Embodiment 7:

[0121] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of embodiments 1 to 6. Furthermore, the positioning column centering device 5 includes a bearing baffle 501, a positioning shaft 502, an eccentric adjustment sleeve 503, a tail tapered handle shaft 504, a self-aligning bearing, and a plurality of rolling ball bearings.

[0122] The bearing baffle 501 is a cylindrical structure, and a through hole IV5011 is provided at the center of the top surface along the axis.

[0123] The top surface of the bearing baffle 501 is provided with a plurality of screw holes II5012 , and the screw holes II5012 are evenly surrounded around the through hole IV5011 .

[0124] The positioning shaft 502 is a stepped rotating body structure as a whole, and a tapered hole 5021 is provided at the center of the bottom along the axis.

[0125] The outer diameter of the first step of the positioning shaft 502 matches the inner diameter of the self-aligning bearing, the outer diameter of the second step matches the inner hole of the rolling ball bearing, and a chamfer is provided on one side of the third step close to the second step.

[0126] The eccentric adjustment sleeve 503 is a stepped rotating body structure.

[0127] A groove II5031 is provided at the top center of the eccentric adjustment sleeve 503 along the axis, and a groove III5032 is provided at the bottom center of the eccentric adjustment sleeve 503 along the axis, and the groove II5031 and the groove III5032 are connected through a through hole V5033.

[0128] A plurality of through holes VI5034 are radially arranged on the groove wall of the groove III5032 for mounting the tail tapered handle shaft 504.

[0129] The top surface of the eccentric adjustment sleeve 503 is provided with a screw hole III5035 adapted to the screw hole II5012 of the bearing baffle 501 .

[0130] A plurality of screw holes IV5036 are provided on the stepped surface of the eccentric adjustment sleeve 503 along the axis for fastening to the tail tapered handle shaft 504 .

[0131] A blind hole III5037 is radially provided on the outer side of the second step of the eccentric adjustment sleeve 503 .

[0132] The tail tapered shaft 504 is fixedly installed in the groove III5032 of the eccentric adjustment sleeve 503 through the through hole VI5034 and the screw hole IV5036 of the eccentric adjustment sleeve 503. The self-aligning bearing and the rolling ball bearing are placed in the groove II5031 of the eccentric adjustment sleeve 503, and the bearing baffle 501 is fixedly installed on the eccentric adjustment sleeve 503 by screws. The positioning shaft 502 is inserted into the through hole IV5011 of the bearing baffle 501, so that the self-aligning bearing and the rolling ball bearing are respectively sleeved on the first step and the second step outer diameter of the positioning shaft 502. The tapered hole 5021 of the positioning shaft 502 is used to press against the positioning column 402 of the hydraulic torque converter assembly 4, and the positioning column 402 of the hydraulic torque converter assembly 4 is aligned by the self-aligning bearing. By installing a round rod at the blind hole III5037 of the eccentric adjustment sleeve 503 and loosening the screw installed at the screw hole IV5036 of the eccentric adjustment sleeve 503, the eccentricity of the pump wheel sleeve 401 and the positioning column 402 of the torque converter assembly 4 is adjusted.

[0133] Embodiment 8:

[0134] A torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of Examples 1 to 7. Furthermore, the material of the positioning shaft 502 includes high-quality carbon structural steel and alloy steel.

[0135] Embodiment 9:

[0136] A torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of embodiments 1 to 8. Furthermore, the material of the eccentric adjustment sleeve 503 includes high-quality carbon structural steel and alloy steel.

[0137] Embodiment 10:

[0138] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of embodiments 1 to 9. Furthermore, the diameter of the through hole V5033 is smaller than the diameter of the outer ring of the self-aligning bearing, so as to limit the axial movement of the self-aligning bearing.

[0139] Embodiment 11:

[0140] See also Figures 1 to 10 , an eccentric cutting fixture system for a hydraulic torque converter assembly, comprising: a positioning drive device 2, a lever floating clamping device 3, and a positioning column centering device 5.

[0141] The positioning drive device 2 is used to position the pump impeller sleeve 401 of the torque converter assembly 4 on the fixture body 1.

[0142] The positioning drive device includes a positioning support shaft, a short cylindrical jacket and a drive shaft. The positioning support shaft is first installed in the product for sealing and positioning, weakening the axial force of the positioning column centering device and reducing the deformation of the product; the short cylindrical jacket has a short axial length in contact with the product and has a point support effect; the drive shaft is installed on the fixture body and connected to the main shaft of the equipment to drive the positioning support shaft.

[0143] The lever floating clamping device 3 is used to clamp the hydraulic torque converter assembly 4 .

[0144] The lever floating clamping device includes a main push plate and a lever push plate. The main push plate is pulled backward by the axial movement of the equipment, and the main push plate pushes the lever push plate to move outward. The lever shaft drives the claws to clamp the workpiece. The stroke of the main push plate is 1-8mm. When the main push plate moves forward, the radially installed spring is used to drive the claws to automatically return to their original position through the lever shaft to release the workpiece.

[0145] The positioning column centering device 5 is used to position the positioning column 402 of the torque converter assembly 4 and adjust the eccentricity of the pump wheel sleeve 401 and the positioning column 402 of the torque converter assembly 4.

[0146] The positioning column centering device comprises a positioning shaft and an eccentric adjustment sleeve. The positioning shaft is used to position the positioning column of the hydraulic torque converter assembly. The eccentric adjustment sleeve is used to adjust the eccentricity of the pump wheel sleeve simulating the hydraulic torque converter and the standard body of the positioning column of the hydraulic torque converter on the fixture.

[0147] The lever floating clamping device of the eccentric cutting fixture system of the hydraulic torque converter assembly of the present invention replaces the original axial spring pre-clamping device, and changes the axial spring into a radial spring, thereby eliminating the safety hazard of manual clamping and increasing the clamping force by utilizing centrifugal force; the positioning drive device and the positioning column centering device of the eccentric cutting fixture system of the hydraulic torque converter assembly of the present invention replace the positioning clamping mechanism and the positioning auxiliary support component, so that the positioning and the driving clamping are designed separately, which adapts to the hydraulic torque converter assembly with an increased aspect ratio of the pump impeller sleeve and (or) a significant change in the coaxiality deviation value between the pump impeller sleeve and the positioning column, and eliminates the over-positioning phenomenon.

[0148] Embodiment 12:

[0149] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in Example 11. Furthermore, the positioning drive device 2 includes a short cylindrical sleeve 201, a center limit shaft 202, a positioning support shaft 204, and a drive shaft 205.

[0150] The short cylindrical jacket 201 is a frustum-shaped structure as a whole, and a through hole I2011 is provided in the center along the axis.

[0151] The through hole 12011 is provided with a chamfer on one side close to the top surface of the frustum of the short cylindrical jacket 201, and the axial length of the other side is smaller than the axial length of the center of the through hole 12011.

[0152] The axial length of the through hole I2011 matches the pump wheel sleeve 401 of the torque converter assembly 4.

[0153] The short cylindrical jacket 201 has a groove 12012 on its outer circle near the top surface of the cone, and a blind hole 12013 on its outer circle near the bottom surface of the cone.

[0154] The outer diameter of the short cylindrical jacket 201 matches the tapered sleeve hole of the fixture body 1 .

[0155] One end of the center limit shaft 202 matches the center hole of the torque converter assembly 4 , and the other end is inserted into the positioning support shaft 204 .

[0156] The positioning support shaft 204 is a stepped rotating body structure as a whole, and an axis hole 2041 matching one end of the central limiting shaft 202 is provided at the center of the top along the axis.

[0157] The bottom of the positioning support shaft 204 is provided with a plurality of grooves I2042.

[0158] A boss I is provided on the outer side of the bottom of the positioning support shaft 204 , and a groove II2043 is provided above the boss I on the outer side of the positioning support shaft 204 .

[0159] The driving shaft 205 is a cylindrical structure, and a boss II adapted to the clamp body 1 is provided at the center of the bottom.

[0160] The top of the driving shaft 205 is provided with a claw I2051 that matches the groove I2042 of the positioning support shaft 204.

[0161] A plurality of countersunk screw holes 2052 are axially defined at the top of the driving shaft 205 .

[0162] Install one end of the center limit shaft 202 in the center hole of the torque converter assembly 4, and insert the other end into the positioning support shaft 204. Put a sealing ring on the groove II2043 of the positioning support shaft 204. The positioning support shaft 204 is inserted into the pump impeller sleeve 401 of the torque converter assembly 4, and the boss I is against the pump impeller sleeve 401 of the torque converter assembly 4. Put the short cylindrical jacket 201 on the outside of the pump impeller sleeve 401 of the torque converter assembly 4. The groove I2012 of the short cylindrical jacket 201 is connected to the pull rod of the fixture body 1, and the limit screw is installed at the blind hole I2013 of the short cylindrical jacket 201. The countersunk screw hole 2052 of the drive shaft 205 is fixed to the fixture body 1 by screws, and the claw 12051 of the drive shaft 205 is inserted into the groove 12042 of the positioning support shaft 204 to complete the sealing and positioning of the pump wheel sleeve 401 of the torque converter assembly 4.

[0163] Embodiment 13:

[0164] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of Examples 11 to 12. Furthermore, the positioning drive device 2 also includes an elastic sleeve 203.

[0165] The elastic sleeve 203 is installed outside the first step of the positioning support shaft 204 .

[0166] Embodiment 14:

[0167] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of Examples 11 to 13. Furthermore, the material of the short cylindrical jacket 201 includes high-quality carbon structural steel and alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr.

[0168] The material of the positioning support shaft 204 includes high-quality carbon structural steel and alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr.

[0169] The material of the driving shaft 205 includes high-quality carbon structural steel and alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr.

[0170] Embodiment 15:

[0171] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of Examples 11 to 14. Furthermore, the lever floating clamping device 3 includes a main push plate 301 and a plurality of identical lever push plates 302, a lever shaft 303, and a clamping claw II 304.

[0172] The main push plate 301 is a frustum structure, and a through hole II3011 is provided in the center along the axial direction.

[0173] The main push plate 301 is provided with a plurality of through slots 3012 along the axial direction.

[0174] The through hole II3011 and the through groove 3012 match the clamp body 1.

[0175] The lever push plate 302 is a rectangular plate structure, and an inner conical surface 3021 matching the frustum of the main push plate 301 is provided on one side of the bottom.

[0176] The top of the lever push plate 302 is provided with a blind hole II3022 for installing a return spring.

[0177] A screw hole I3023 is provided on one end surface of the lever push plate 302 for installing a claw II304.

[0178] A through hole III3024 is provided at the bottom of the screw hole I3023 for installing the lever shaft 303.

[0179] The axial direction of the through hole III3024 is perpendicular to the axial direction of the screw hole I3023 and the axial direction of the blind hole II3022.

[0180] The main push plate 301 is fixedly mounted on the fixture body 1 and fixed by a plurality of lever push plates 302. The inner conical surface 3021 of the lever push plate 302 is pressed against the main push plate 301, and the blind hole II3022 is connected to the fixture body 1 through a return spring. The lever shaft 303 and the claw II304 are fixedly mounted on the lever push plate 302.

[0181] When the torque converter assembly 4 moves toward the clamp body 1 , the lever push plate 302 pushes against the main push plate 301 and moves toward the clamp body 1 , compressing the return spring and driving the clamping claw II304 to clamp the torque converter assembly 4 through the lever shaft 303 .

[0182] When the torque converter assembly 4 moves away from the clamp body 1 , the return spring is relaxed, and the lever shaft 303 drives the claw II304 to release the torque converter assembly 4 .

[0183] Embodiment 16:

[0184] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of Examples 11 to 15. Furthermore, the material of the main push plate 301 includes high-quality carbon structural steel and alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr.

[0185] The material of the lever push plate 302 includes high-quality carbon structural steel and alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr.

[0186] Embodiment 17:

[0187] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of Examples 11 to 16. Furthermore, the positioning column centering device 5 includes a bearing baffle 501, a positioning shaft 502, an eccentric adjustment sleeve 503, a tail tapered handle shaft 504, a self-aligning bearing, and a plurality of rolling ball bearings.

[0188] The bearing baffle 501 is a cylindrical structure, and a through hole IV5011 is provided at the center of the top surface along the axis.

[0189] The top surface of the bearing baffle 501 is provided with a plurality of screw holes II5012 , and the screw holes II5012 are evenly surrounded around the through hole IV5011 .

[0190] The positioning shaft 502 is a stepped rotating body structure as a whole, and a tapered hole 5021 is provided at the center of the bottom along the axis.

[0191] The outer diameter of the first step of the positioning shaft 502 matches the inner diameter of the self-aligning bearing, the outer diameter of the second step matches the inner hole of the rolling ball bearing, and a chamfer is provided on one side of the third step close to the second step.

[0192] The eccentric adjustment sleeve 503 is a stepped rotating body structure.

[0193] A groove II5031 is provided at the top center of the eccentric adjustment sleeve 503 along the axis, and a groove III5032 is provided at the bottom center of the eccentric adjustment sleeve 503 along the axis, and the groove II5031 and the groove III5032 are connected through a through hole V5033.

[0194] A plurality of through holes VI5034 are radially arranged on the groove wall of the groove III5032 for mounting the tail tapered handle shaft 504.

[0195] The top surface of the eccentric adjustment sleeve 503 is provided with a screw hole III5035 adapted to the screw hole II5012 of the bearing baffle 501 .

[0196] A plurality of screw holes IV5036 are provided on the stepped surface of the eccentric adjustment sleeve 503 along the axis for fastening to the tail tapered handle shaft 504 .

[0197] A blind hole III5037 is radially provided on the outer side of the second step of the eccentric adjustment sleeve 503 .

[0198] The tail tapered shaft 504 is fixedly installed in the groove III5032 of the eccentric adjustment sleeve 503 through the through hole VI5034 and the screw hole IV5036 of the eccentric adjustment sleeve 503. The self-aligning bearing and the rolling ball bearing are placed in the groove II5031 of the eccentric adjustment sleeve 503, and the bearing baffle 501 is fixedly installed on the eccentric adjustment sleeve 503 by screws. The positioning shaft 502 is inserted into the through hole IV5011 of the bearing baffle 501, so that the self-aligning bearing and the rolling ball bearing are respectively sleeved on the first step and the second step outer diameter of the positioning shaft 502. The tapered hole 5021 of the positioning shaft 502 is used to press against the positioning column 402 of the hydraulic torque converter assembly 4, and the positioning column 402 of the hydraulic torque converter assembly 4 is aligned by the self-aligning bearing. By installing a round rod at the blind hole III5037 of the eccentric adjustment sleeve 503 and loosening the screw installed at the screw hole IV5036 of the eccentric adjustment sleeve 503, the eccentricity of the pump wheel sleeve 401 and the positioning column 402 of the torque converter assembly 4 is adjusted.

[0199] Embodiment 18:

[0200] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of Examples 11 to 17. Furthermore, the material of the positioning shaft 502 includes high-quality carbon structural steel and alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr.

[0201] Embodiment 19:

[0202] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of Examples 11 to 18. Furthermore, the material of the eccentric adjustment sleeve 503 includes high-quality carbon structural steel and alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr.

[0203] Embodiment 20:

[0204] A hydraulic torque converter assembly eccentric cutting fixture system, the main technical content of which is shown in any one of Examples 11 to 19. Furthermore, the diameter of the through hole V5033 is smaller than the diameter of the outer ring of the self-aligning bearing, so as to limit the axial movement of the self-aligning bearing.

[0205] Embodiment 21:

[0206] See also Figures 1 to 10 , a torque converter assembly eccentric cutting fixture system, the main technical contents are as follows:

[0207] The existing turning processing fixture of the torque converter assembly mainly consists of a fixture body, a positioning clamping mechanism 6, an axial auxiliary clamping device 7, an auxiliary positioning support 8 and a sealing positioning support component.

[0208] This embodiment provides an eccentric cutting fixture system for a torque converter assembly, which mainly includes a lever floating clamping device, a positioning drive device and a positioning column centering device.

[0209] The main push plate is made of high-quality carbon structural steel or alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr. The main push plate is a cylindrical structure with a cone and a through hole at the axis. The outer diameter of the cone of the main push plate is 230mm, the taper is 17 degrees, and the cone length is 10mm. The inner hole of the main push plate matches the fixture body, and 4 through grooves are evenly arranged along the radial direction of the main push plate. The width of the through groove is 20mm and the length is 35mm, which also matches the fixture body. Through this inner hole and through groove, the lever push plate can be accurately pushed to work.

[0210] The material of the lever push plate is made of high-quality carbon structural steel or alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr. The lever push plate is in the shape of a cuboid with a length of 21mm, a width of 21mm and a height of 85mm. A blind hole with a diameter of 10mm and a depth of 10mm is set 49mm away from the end face along the length direction for installing the reset spring. Threads and through holes are set along the length direction through the center of the cuboid for installing the claws. A through hole is set through the center of the cuboid and in a direction parallel to the aforementioned reset spring mounting hole for the lever shaft. An inner conical surface matching the external cone of the aforementioned main push plate is set 15mm away from the lever shaft mounting hole along the length direction, and the length is 16mm longer than the cone length of the aforementioned main push plate.

[0211] The above-mentioned lever floating clamping device is composed of a main push plate, a plurality of lever push plates, a plurality of springs, a plurality of lever shafts, a plurality of claws, etc., and is installed on the above-mentioned clamp body through the lever shaft and screws.

[0212] The material of the short cylindrical jacket is made of high-quality carbon structural steel or alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr. The short cylindrical jacket is in the shape of a cone structure with a frustum on the outside and a through hole on the axis. The outer diameter and length of the frustum of the short cylindrical jacket are matched with the conical sleeve hole of the fixture body for positioning and clamping. A blind hole is provided near the large end of the outer circle of the frustum for installing a limit screw to prevent the short cylindrical jacket from circumferential movement during operation and scratching the product. A groove is provided at the small end of the frustum for connecting the pull rod of the fixture body and driving the short cylindrical jacket. The diameter of the through hole of the short cylindrical jacket is 0.8mm larger than the outer diameter of the impeller sleeve of the torque converter. An arc annular surface facing away from the short cylindrical jacket is set in the hole 4mm near the end face of the short cylindrical jacket. The radius of the arc is 10mm. The minimum diameter of the arc annular surface matches the outer diameter of the impeller sleeve of the torque converter. The above-mentioned through hole and the arc annular surface of the short cylindrical jacket are connected by a smooth transition R3.

[0213] The material of the positioning support shaft is made of high-quality carbon structural steel or alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr. The positioning support shaft is in the shape of a cylinder with a boss and a groove on the outside and a threaded hole on the axis. The outer diameter of the positioning support shaft is 53mm and the length is 13mm. At the contact point with the pump impeller sleeve in the circle, there are two grooves matching the pump impeller sleeve, and the depth of the groove is 2mm less than the claw of the pump impeller sleeve. An outer boss with an outer diameter of 41mm and a length of 16mm is arranged on the outer side of the middle part of the positioning support shaft. A groove is arranged on the outer circle of the boss for installing a sealing ring to seal the inner hole of the pump impeller sleeve of the torque converter to prevent cutting fluid from entering. An outer boss with an outer diameter of 19mm and a length of 15mm is arranged on the positioning support shaft and located on the upper circular platform. An M10 threaded hole with a hole depth of 24mm is arranged on the end face of the boss. The positioning support shaft is connected to the center limit shaft through this threaded hole to fix the torque converter assembly. An outer spherical surface is set at the lower part of the axis of the positioning support shaft along the axis direction. The spherical surface is 2mm high. The periphery of the spherical surface is connected to the end face of the positioning support shaft through a smooth transition of R3 arc, which is used for axial positioning of the torque converter. Two grooves with a width of 6mm and a depth of 15mm are evenly set at 11mm from the axis centerline of the positioning support shaft on the same side of the spherical surface, which are used to install the claws of the drive shaft.

[0214] The material of the driving shaft is made of high-quality carbon structural steel or alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr. The driving shaft is in the shape of a cylindrical structure with a boss on the outside and three screw countersunk holes evenly arranged along the radial surface. The screw holes are used to install the driving shaft on the fixture body. The outer diameter of the driving shaft is 46mm and the length is 33mm. In the middle of the guide sleeve, claws matching the aforementioned positioning support shaft are evenly arranged along the radial distance from the center of the axis. The length of the claws is 2mm smaller than the groove of the aforementioned positioning support shaft, which is used to drive the positioning support shaft and then drive the pump wheel sleeve.

[0215] The positioning drive device is composed of a short cylindrical jacket, a positioning support shaft, a driving shaft, a center limit shaft, an elastic sleeve, etc., and is installed on the fixture body by screws.

[0216] The material of the positioning shaft is made of high-quality carbon structural steel or alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr. The positioning shaft is in the shape of a cylindrical structure with a boss on the outside and a tapered hole on the axis of the positioning column end. The outer diameter of the positioning shaft is 40mm and the length is 16mm. A frustum is set on the outside of the positioning shaft. The minor diameter of the frustum is smaller than the major diameter of the inner ring of the rolling ball bearing and the length is 4mm. The length of the truncated cone on the frustum is 2mm. The length of 46mm is set on the truncated cone, and the outer diameter matches the inner hole of the rolling ball bearing. A truncated cone is set on the outside of the positioning shaft, the length is 15mm, and the outer diameter matches the inner diameter of the self-aligning bearing. The positioning shaft and the rolling ball bearing are installed to eliminate the damage to the parts caused by the mutual friction between the positioning column and the positioning shaft during the processing of the torque converter assembly. It is installed with the self-aligning bearing for automatic self-alignment to reduce the coaxial error of the torque converter assembly itself.

[0217] The material of the eccentric adjustment sleeve is made of high-quality carbon structural steel or alloy steel, such as 45 steel, 20CrMo, 35Cr and 40Cr. The eccentric adjustment sleeve is in the shape of a cylinder with large cylinders at both ends, a small cylinder in the middle, and multiple stepped holes at the axis. The outer diameter of the first large cylinder of the eccentric adjustment sleeve is 73mm and the length is 14mm. The outer diameter of the cylinder in the middle of the eccentric adjustment sleeve is 67mm and the length is 39mm. The outer diameter of the second large cylinder of the eccentric adjustment sleeve is 115mm and the length is 32mm. Several threaded holes are evenly arranged radially around the end face of the first large cylinder for installing the bearing baffle. A number of through holes are evenly arranged radially on the eccentric adjustment sleeve and located around the second large cylinder. The eccentric adjustment sleeve is fixed to the aforementioned tail cone handle shaft through these through holes for installation on the equipment. A blind hole is arranged on the outer surface of the second large cylinder of the eccentric adjustment sleeve for installing the round rod adjustment eccentric adjustment sleeve. Several threaded holes are provided near the end surface of the outer surface of the second large cylinder of the eccentric adjustment sleeve for installing screws to tighten the already adjusted positioning shaft to prevent the positioning shaft from loosening after long-term use. An inner concave hole is provided along the axial direction at the lower part of the inner axis of the first cylinder of the eccentric adjustment sleeve. The size of the inner concave hole matches the outer diameter of the bearing and the length is 62mm. It is used to position the bearing to avoid reducing or losing the function of the bearing. An inner concave hole is provided along the axial direction at the upper part of the inner axis of the second large cylinder of the eccentric adjustment sleeve. The size of the inner concave hole matches the outer diameter of the aforementioned tail tapered shaft with a matching clearance of 1mm. It is used to radially adjust the center position of the aforementioned positioning shaft to reduce or eliminate the coaxial error of the equipment before the installation of the torque converter assembly. A through hole is provided between the two aforementioned inner concave holes, the diameter of which is slightly smaller than the minor diameter of the outer ring of the self-aligning bearing, to limit the axial movement of the self-aligning bearing.

[0218] The above-mentioned positioning column centering device consists of a positioning shaft, an eccentric adjustment sleeve, a bearing baffle, two rolling ball bearings, a self-aligning bearing, a tail tapered handle shaft, etc., and is installed on the above-mentioned equipment by screws.

Claims

1. An eccentric cutting fixture system for a torque converter assembly, characterized in that: include: A positioning drive device (2), a lever floating pressing device (3), and a positioning column centering device (5). The positioning drive device (2) is used to position the pump wheel sleeve (401) of the hydraulic torque converter assembly (4) on the fixture body (1); The lever floating clamping device (3) is used to clamp the hydraulic torque converter assembly (4). The positioning column centering device (5) is used to position the positioning column (402) of the hydraulic torque converter assembly (4) and to adjust the eccentricity of the pump wheel sleeve (401) and the positioning column (402) of the hydraulic torque converter assembly (4).

2. The eccentric cutting fixture system of a torque converter assembly according to claim 1, characterized in that: The positioning drive device (2) comprises a short cylindrical jacket (201), a center limiting shaft (202), a positioning support shaft (204), and a driving shaft (205); The short cylindrical jacket (201) is a frustum-shaped structure as a whole, and a through hole I (2011) is provided at the center along the axis; The through hole I (2011) is provided with a chamfer on one side close to the top surface of the frustum of the short cylindrical jacket (201), and the axial length of the other side is smaller than the axial length of the center of the through hole I (2011); The axial length of the through hole I (2011) matches the pump impeller sleeve (401) of the torque converter assembly (4); The short cylindrical jacket (201) is provided with a groove I (2012) on the outer circle of the side close to the top surface of the cone, and a blind hole I (2013) on the outer circle of the side close to the bottom surface of the cone; The outer diameter of the short cylindrical jacket (201) matches the tapered sleeve hole of the fixture body (1); One end of the center limit shaft (202) matches the center hole of the torque converter assembly (4), and the other end is inserted into the positioning support shaft (204); The positioning support shaft (204) is a stepped rotating body structure as a whole, and an axis hole (2041) matching with one end of the central limiting shaft (202) is provided at the center of the top along the axis line; The bottom of the positioning support shaft (204) is provided with a plurality of grooves I (2042); The bottom outer side of the positioning support shaft (204) is provided with a boss I, and the outer side of the positioning support shaft (204) is provided with a groove II (2043) above the boss I; The driving shaft (205) is a cylindrical structure, and a boss II adapted to the clamp body (1) is provided at the center of the bottom; The top of the driving shaft (205) is provided with a claw I (2051) matching with the groove I (2042) of the positioning support shaft (204); A plurality of countersunk screw holes (2052) are provided at the top of the driving shaft (205) along the axial direction; One end of the center limit shaft (202) is installed in the center hole of the torque converter assembly (4), and the other end is inserted into the positioning support shaft (204); a sealing ring is put on the groove II (2043) of the positioning support shaft (204); the positioning support shaft (204) is inserted into the pump impeller sleeve (401) of the torque converter assembly (4), and the boss I is against the pump impeller sleeve (401) of the torque converter assembly (4); the short cylindrical jacket (201) is put on the pump impeller sleeve (401) of the torque converter assembly (4); ) outside; the groove I (2012) of the short cylindrical sleeve (201) is connected to the pull rod of the fixture body (1), and a limit screw is installed at the blind hole I (2013) of the short cylindrical sleeve (201); the countersunk screw hole (2052) of the drive shaft (205) is fixed to the fixture body (1) by means of screws, and the claw I (2051) of the drive shaft (205) is inserted into the groove I (2042) of the positioning support shaft (204), thereby completing the sealing and positioning of the pump impeller sleeve (401) of the torque converter assembly (4).

3. The eccentric cutting fixture system of a torque converter assembly according to claim 2, characterized in that: The positioning drive device (2) further comprises an elastic sleeve (203); The elastic sleeve (203) is installed outside the first step of the positioning support shaft (204).

4. The eccentric cutting fixture system of a torque converter assembly according to claim 2, characterized in that: The material of the short cylindrical jacket (201) includes high-quality carbon structural steel and alloy steel; The material of the positioning support shaft (204) includes high-quality carbon structural steel and alloy steel; The material of the driving shaft (205) includes high-quality carbon structural steel and alloy steel.

5. The eccentric cutting fixture system of a torque converter assembly according to claim 1, characterized in that: The lever floating clamping device (3) comprises a main push plate (301) and a plurality of lever push plates (302) of the same number, a lever rotating shaft (303), and a clamping claw II (304); The main push plate (301) is a frustum structure, and a through hole II (3011) is provided in the center along the axial direction; The main push plate (301) is provided with a plurality of through grooves (3012) along the axial direction; The through hole II (3011) and the through groove (3012) match the clamp body (1); The lever push plate (302) is a rectangular plate structure, and one side of the bottom is provided with an inner conical surface (3021) matching the cone of the main push plate (301); The top of the lever push plate (302) is provided with a blind hole II (3022) for installing a return spring; A screw hole I (3023) is provided on one end surface of the lever push plate (302) for mounting a clamping claw II (304); A through hole III (3024) is provided at the bottom of the screw hole I (3023) for mounting the lever shaft (303); The axial direction of the through hole III (3024) is perpendicular to the axial direction of the screw hole I (3023) and the axial direction of the blind hole II (3022); The main push plate (301) is fixedly mounted on the clamp body (1) and fixed by a plurality of lever push plates (302); the inner conical surface (3021) of the lever push plate (302) is pressed against the main push plate (301), and the blind hole II (3022) is connected to the clamp body (1) via a return spring; the lever shaft (303) and the claw II (304) are fixedly mounted on the lever push plate (302); When the torque converter assembly (4) moves toward the clamp body (1), the lever push plate (302) pushes against the main push plate (301) to move toward the clamp body (1), compressing the return spring and driving the clamping claw II (304) to clamp the torque converter assembly (4) through the lever shaft (303); When the hydraulic torque converter assembly (4) moves away from the clamp body (1), the return spring is relaxed, and the lever shaft (303) drives the clamping claw II (304) to release the hydraulic torque converter assembly (4).

6. The eccentric cutting fixture system of a torque converter assembly according to claim 5, characterized in that: The material of the main push plate (301) includes high-quality carbon structural steel and alloy steel; The material of the lever push plate (302) includes high-quality carbon structural steel and alloy steel.

7. The eccentric cutting fixture system for a torque converter assembly according to claim 1, characterized in that: The positioning column centering device (5) comprises a bearing baffle (501), a positioning shaft (502), an eccentric adjustment sleeve (503), a tail tapered handle shaft (504), a self-aligning bearing, and a plurality of rolling ball bearings; The bearing baffle (501) is a cylindrical structure, and a through hole IV (5011) is provided at the center of the top surface along the axis; The top surface of the bearing baffle (501) is provided with a plurality of screw holes II (5012), and the screw holes II (5012) are evenly surrounded by the through hole IV (5011); The positioning shaft (502) is a stepped rotating body structure as a whole, and a tapered hole (5021) is provided at the center of the bottom along the axis; The outer diameter of the first step of the positioning shaft (502) matches the inner diameter of the self-aligning bearing, the outer diameter of the second step matches the inner hole of the rolling ball bearing, and the third step is provided with a chamfer on one side close to the second step; The eccentric adjustment sleeve (503) is a stepped rotating body structure; A groove II (5031) is provided at the top center of the eccentric adjustment sleeve (503) along the axis, and a groove III (5032) is provided at the bottom center of the eccentric adjustment sleeve (503) along the axis, and the groove II (5031) and the groove III (5032) are connected through a through hole V (5033); A plurality of through holes VI (5034) are radially arranged on the groove wall of the groove III (5032) for mounting the tail tapered handle shaft (504); The top surface of the eccentric adjustment sleeve (503) is provided with a screw hole III (5035) adapted to the screw hole II (5012) of the bearing baffle (501); A plurality of screw holes IV (5036) are provided on the stepped surface of the eccentric adjustment sleeve (503) along the axis for fastening to the tail tapered handle shaft (504); A blind hole III (5037) is radially provided on the outer side of the second step of the eccentric adjustment sleeve (503); The tail tapered handle shaft (504) is fixedly mounted in the groove III (5032) of the eccentric adjustment sleeve (503) through the through hole VI (5034) and the screw hole IV (5036) of the eccentric adjustment sleeve (503); the self-aligning bearing and the rolling ball bearing are placed in the groove II (5031) of the eccentric adjustment sleeve (503); the bearing baffle (501) is fixedly mounted on the eccentric adjustment sleeve (503) by screws; the positioning shaft (502) is inserted into the through hole IV (5011) of the bearing baffle (501), so that the self-aligning bearing and the rolling ball bearing are respectively sleeved on the positioning shaft (502); The first step and the second step outer diameter of the shaft (502) are arranged on the outer diameter of the first step and the second step of the shaft (502); the tapered hole (5021) of the positioning shaft (502) is used to press against the positioning column (402) of the torque converter assembly (4), and the positioning column (402) of the torque converter assembly (4) is adjusted by a self-aligning bearing; a round rod is installed at the blind hole III (5037) of the eccentric adjustment sleeve (503), and the screw installed at the screw hole IV (5036) of the eccentric adjustment sleeve (503) is loosened to adjust the eccentricity of the pump wheel sleeve (401) and the positioning column (402) of the torque converter assembly (4).

8. The eccentric cutting fixture system of a torque converter assembly according to claim 7, characterized in that: The material of the positioning shaft (502) includes high-quality carbon structural steel and alloy steel.

9. The eccentric cutting fixture system of a torque converter assembly according to claim 7, characterized in that: The material of the eccentric adjustment sleeve (503) includes high-quality carbon structural steel and alloy steel.

10. The eccentric cutting fixture system of a torque converter assembly according to claim 7, characterized in that: The diameter of the through hole V (5033) is smaller than the diameter of the outer ring of the self-aligning bearing and is used to limit the axial movement of the self-aligning bearing.

Images