Clamp press-fitting system and press-fitting method

Abstract

The present application provides a clamp press-fitting system and method, wherein the clamp press-fitting system includes a press-fitting die, a supporting mechanism, a pushing mechanism, and a traveling mechanism; the press-fitting die is used to press-fit the clamp, and the supporting mechanism is used to support the press-fitting die; the pushing mechanism is used to drive the press-fitting die to move forward and backward so that the press-fitting die can press-fit the clamp; the traveling mechanism is used to drive the press-fitting die to move left and right so as to switch between different press-fitting positions; the press-fitting die includes an upper press-fitting die and a lower press-fitting die, and the upper press-fitting die and the lower press-fitting die are arranged correspondingly up and down; the upper press-fitting die and the lower press-fitting die both include three mold flaps that can be closed or separated. The present application can realize fully automated press-fitting of the clamp, with high press-fitting accuracy of the clamp and high roundness of the clamp after press-fitting; it can greatly reduce the workload of the staff, save the time of product changeover, and improve replacement efficiency.

Description

Technical Field

[0001] The present application belongs to the field of clamp press-fitting, and specifically relates to a clamp press-fitting system and a press-fitting method. Background Art

[0002] The drive shaft is a vital component for transmitting power in a vehicle's transmission system. Together with the gearbox and drive axle, it transmits the engine's power to the wheels, generating driving force for the vehicle. The drive shaft is a high-speed, low-support rotating body, so its dynamic balance is crucial. The drive shaft consists of a shaft tube, a dust cover, and a universal joint. A clamp is mounted on the dust cover of the drive shaft. The clamp is riveted to the outside of the dust cover with very high riveting precision requirements to ensure the balance of the drive shaft. With the annual growth in automobile sales, the market demand for drive shafts continues to increase. However, existing clamp press-fitting devices suffer from problems such as low press-fitting precision and low press-fitting efficiency. Summary of the Invention

[0003] In order to at least overcome the problems existing in the related art to a certain extent, the present application provides a clamp press-fitting system and a press-fitting method.

[0004] According to the first aspect of the embodiment of the present application, the present application provides a clamp pressing system, which includes a pressing mold, a supporting mechanism, a pushing mechanism and a walking mechanism; the pressing mold is used to press the clamp, and the supporting mechanism is used to support the pressing mold; the pushing mechanism is used to drive the pressing mold to move forward and backward so that the pressing mold can press the clamp; the walking mechanism is used to drive the pressing mold to move left and right to switch between different pressing positions; the pressing mold includes an upper pressing mold and a lower pressing mold, and the upper pressing mold and the lower pressing mold are arranged correspondingly up and down; the upper pressing mold and the lower pressing mold both include three mold halves that can be closed or separated.

[0005] In the clamp press-fitting system, the lower pressing mold includes a mold force plate, a self-resetting spring and a forming mold seat, the self-resetting spring is provided on the top surface of the mold force plate, and the mold force plate is connected to the forming mold seat via the self-resetting spring;

[0006] Along the length direction of the mold force plate, a first mold half assembly, a second mold half assembly, a third mold half assembly and a synchronization assembly are also provided on the top surface of the mold force plate; the first mold half assembly, the second mold half assembly and the third mold half assembly are used to be closed together to press the clamp together with the upper pressing mold; the synchronization assembly is used to synchronize the closing of the lower pressing mold and the upper pressing mold.

[0007] Furthermore, the first mold half assembly includes a first mold half fixing block, a first cam, a first mold half sliding block and a first mold half; one end of the first mold half fixing block is fixedly connected to the mold support plate, and the other end thereof is connected to the first end of the first cam, the second end of the first cam is connected to one end of the first mold half sliding block, the third end of the first cam is rotatably connected to the molding mold base, and the other end of the first mold half sliding block is connected to the first mold half through a first quick-change assembly.

[0008] Furthermore, the second mold half assembly includes a second mold half fixing block and a second mold half; one end of the second mold half fixing block is fixedly connected to the mold support plate, and the other end thereof is connected to the second mold half through a second quick-change assembly.

[0009] Furthermore, the third mold half assembly includes a third mold half fixing block, a third cam, a third mold half sliding block and a third mold half; one end of the third mold half fixing block is fixedly connected to the mold support plate, and the other end thereof is connected to the first end of the third cam, the second end of the third cam is connected to one end of the third mold half sliding block, the third end of the third cam is rotatably connected to the molding mold base, and the other end of the third mold half sliding block is connected to the third mold half through a third quick-change assembly.

[0010] Furthermore, the synchronization assembly includes a synchronization block, a synchronization hinge, a driving shaft and a force-bearing shaft; the synchronization block is fixedly connected to the mold force plate, and a synchronization block groove is opened on the side wall of the synchronization block. One end of the synchronization hinge is clamped in the synchronization block groove, and the other end is connected to one end of the driving shaft;

[0011] Located on one side of the pushing shaft, the force-bearing shaft is arranged on the top surface of the mold force plate; the other end of the pushing shaft is used to dock with the force-bearing shaft in the upper pressing mold; the top of the force-bearing shaft extends from the top plate of the forming mold seat and is used to dock with the pushing shaft in the upper pressing mold.

[0012] Furthermore, the first quick-change assembly, the second quick-change assembly and the third quick-change assembly have the same structure;

[0013] The first quick-change assembly includes a first quick-change pin, a first quick-change spring, a first push screw and a first steel ball. One end of the first quick-change pin passes through the first mold half sliding block and is connected to the first push screw through the first quick-change spring. The first steel ball is arranged in a first sliding block groove opened on the side wall of the first mold half close to the first mold half sliding block. The first quick-change pin and the first steel ball are used in conjunction with each other.

[0014] Furthermore, the first quick-change pin includes a fixed locking part, a steel ball movable part and a guide part connected in sequence, the diameter of the fixed locking part is larger than the diameter of the steel ball movable part, and the guide part is connected to the first top screw through the first quick-change spring; the first steel ball is arranged along the radial direction of the first quick-change pin, and the fixed locking part and the steel ball movable part cooperate with the first steel ball to connect or replace the first mold halves.

[0015] Furthermore, the support mechanism includes a C-shaped frame, a crossbeam and a hydraulic cylinder; the upper pressing mold and the lower pressing mold are both located in the opening of the C-shaped frame, and the lower pressing mold is arranged on the lower crossbeam of the C-shaped frame, and the upper pressing mold is correspondingly arranged above the lower pressing mold;

[0016] In the opening of the C-shaped frame, the upper pressing mold is connected to the L-shaped fixing plate through the crossbeam; a slider is provided on the side of the L-shaped fixing plate away from the upper pressing mold, and a slide rail is provided on the side of the vertical beam of the C-shaped frame close to the upper pressing mold; the slider and the slide rail are used in conjunction with each other;

[0017] The hydraulic cylinder is provided on the upper crossbeam of the C-shaped frame, a pressure sensor is provided on the top of the L-shaped fixing plate, and the telescopic shaft of the hydraulic cylinder passes through the upper crossbeam of the C-shaped frame and is floatingly connected to the pressure sensor;

[0018] A balancing cylinder and a displacement sensor are provided on the side surface in the thickness direction of the C-shaped frame. The balancing cylinder is used to balance the gravity of the upper pressing mold and the L-shaped fixing plate, and the displacement sensor is used to detect the position of the upper pressing mold.

[0019] Furthermore, the pushing mechanism includes a first support plate, a fixed slide rail, a pushing cylinder, a front slide rail support block, a middle slide rail support block, a rear slide rail support block, a gantry and a side connection assembly;

[0020] The first support plate is arranged along the opening direction of the C-shaped frame, and the fixed slide rail and the pushing cylinder are arranged on the first support plate along the length direction of the first support plate; the pushing cylinder is arranged on one side in the width direction of the fixed slide rail, and the pushing direction of the pushing cylinder is the same as the length direction of the fixed slide rail;

[0021] The front end slide rail support block, the middle end slide rail support block and the rear end slide rail support block are evenly spaced on the fixed slide rail; the gantry is slidably arranged on the fixed slide rail through the front end slide rail support block, the middle end slide rail support block and the rear end slide rail support block;

[0022] The C-shaped frame is connected to the gantry via the side connection assembly.

[0023] Furthermore, the walking mechanism includes a second support plate and a screw assembly, the second support plate is provided with the screw assembly, and the screw assembly is provided below the first support plate;

[0024] The screw assembly includes a screw, a front end support block, a rear end support block and a servo motor. The front end support block is provided at one end of the screw, and the rear end support block is provided at the other end. The front end support block and the rear end support block are used to support the screw. The servo motor is connected to the screw, and the servo motor is used to drive the screw to rotate and brake.

[0025] According to a second aspect of the embodiments of the present application, the present application further provides a clamp press-fitting method, which uses any of the clamp press-fitting systems described above for press-fitting, and comprises the following steps:

[0026] The transmission shaft to be press-fitted is mounted on one side of the clamp press-fitting system along the thickness direction of the C-shaped frame in the support mechanism, so that one end of the transmission shaft can pass through the pressing die when the transmission shaft is press-fitted;

[0027] Along the length direction of the C-shaped frame in the support mechanism, the pushing mechanism drives the pressing mold and the support mechanism to move from the initial position toward the direction of the transmission shaft to the working position; along the height direction of the C-shaped frame in the support mechanism, the upper pressing mold and the lower pressing mold hold the transmission shaft and then press the transmission shaft with a clamp;

[0028] Along the thickness direction of the C-shaped frame in the support mechanism, the walking mechanism drives the pressing mold and the support mechanism to move, so that the upper pressing mold and the lower pressing mold can hold different parts of the drive shaft in the length direction, and then press the clamp at the position where press-fitting is required on the drive shaft;

[0029] After the press-fitting is completed, the pushing mechanism drives the pressing mold and the supporting mechanism to return from the working position to the initial position along the length direction of the C-shaped frame in the supporting mechanism.

[0030] According to the above-described specific embodiments of the present application, at least the following beneficial effects are achieved: the clamp press-fitting system provided herein utilizes a split six-petal structure for the press-fitting die, resulting in high clamp press-fitting accuracy and high roundness of the clamp after press-fitting. The clamp press-fitting system provided herein also enables fully automated clamp press-fitting, significantly reducing staff workload, saving product changeover time, and improving replacement efficiency.

[0031] It should be understood that the above general description and the following detailed description are only exemplary and illustrative and do not limit the scope of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings below are part of the specification of the present application, which illustrate embodiments of the present application. The accompanying drawings, together with the description in the specification, are used to explain the principles of the present application.

[0033] Figure 1 A schematic diagram of the overall structure of a clamp press-fitting system provided in an embodiment of the present application.

[0034] Figure 2 This is a schematic diagram of the overall structure of a lower pressing mold in a clamp pressing system provided in an embodiment of the present application.

[0035] Figure 3 A side view of a lower pressing mold in a clamp press-fitting system provided in an embodiment of the present application.

[0036] Figure 4 This is a schematic diagram of the overall structure of a pressing mold, a supporting mechanism and a part of the pushing mechanism in a clamp pressing system provided in an embodiment of the present application.

[0037] Figure 5 A side view of a pressing die, a supporting mechanism, and a portion of a pushing mechanism in a clamp pressing system provided in an embodiment of the present application.

[0038] Figure 6 This is a schematic diagram of the overall structure of a partial pushing mechanism in a clamp press-fitting system provided in an embodiment of the present application.

[0039] Figure 7 This is a schematic diagram of the overall structure of a walking mechanism in a clamp press-fitting system provided in an embodiment of the present application.

[0040] Description of reference numerals:

[0041] 1. Pressing mold;

[0042] 11. Upper pressing mold;

[0043] 12. Lower mold clamping; 121. Mold support plate; 122. Self-resetting spring; 123. Forming mold base; 124. First mold flap assembly; 1241. First mold flap fixing block; 1242. First cam; 1243. First mold flap sliding block; 1244. First mold flap; 125. Second mold flap assembly; 1251. Second mold flap fixing block; 1252. Second mold flap; 126. Third mold flap assembly; 1261. Third mold flap fixing block; 1262. Third cam; 1263. Third mold flap sliding block; 1264. Third mold flap; 127. Synchronizing assembly; 1271. Synchronizing block; 1272. Synchronizing hinge; 1273. Pushing shaft; 1274. Force bearing shaft;

[0044] 2. Support mechanism; 21. C-shaped frame; 22. Crossbeam; 23. Hydraulic cylinder; 24. L-shaped fixing plate; 25. Pressure sensor; 26. Balance cylinder; 27. Displacement sensor;

[0045] 3. Pushing mechanism; 31. First support plate; 32. Fixed slide rail; 33. Pushing cylinder; 34. Front slide rail support block; 35. Middle slide rail support block; 36. Rear slide rail support block; 37. Gantry; 371. Reinforcement plate; 38. Side connection assembly; 381. Side guide rail; 382. Wide slider; 383. Guide rail stopper;

[0046] 4. Walking mechanism; 41. Second support plate; 42. Screw assembly; 421. Screw; 422. Front support block; 423. Rear support block. DETAILED DESCRIPTION

[0047] In order to make the objectives, technical solutions and advantages of the embodiments of the present application more clearly understood, the spirit of the contents disclosed in the present application will be clearly illustrated with the accompanying drawings and detailed descriptions below. After understanding the embodiments of the contents of the present application, any technician in the relevant technical field can change and modify the contents of the present application based on the techniques taught by the contents of the present application without departing from the spirit and scope of the contents of the present application.

[0048] The exemplary embodiments and descriptions of the present application are used to explain the present application, but are not intended to limit the present application. In addition, elements / components with the same or similar reference numerals used in the drawings and embodiments are used to represent the same or similar parts.

[0049] The terms “first,” “second,” etc. used herein do not specifically refer to an order or sequence, nor are they intended to limit this application. They are merely used to distinguish elements or operations described with the same technical terms.

[0050] The words “include,” “including,” “have,” “contain,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0051] As used herein, "and / or" includes any and all combinations of the items mentioned.

[0052] Regarding "plurality" in this document, "plurality" includes "two" and "more than two"; regarding "plurality groups" in this document, "plurality groups" includes "two groups" and "more than two groups".

[0053] Certain terms used to describe the present application are discussed below, or elsewhere in this specification, to provide additional guidance to those skilled in the art regarding the description of the present application.

[0054] like Figure 1As shown, the clamp press-fitting system provided in this application includes a press-fitting die 1, a support mechanism 2, a push mechanism 3, and a travel mechanism 4. The press-fitting die 1 is used to press-fit the clamp, and the support mechanism 2 is used to support the press-fitting die 1. The push mechanism 3 is used to drive the press-fitting die 1 to move in and out for press-fitting. The travel mechanism 4 is used to drive the press-fitting die 1 to move in a second direction to switch between different press-fitting positions. The first direction is the radial direction of the clamp, and the second direction is the longitudinal direction of the clamp.

[0055] Specifically, when the clamp is pressed onto the transmission shaft using the clamp press-fitting system provided by the present invention, the first direction is the same as the radial direction of the transmission shaft, and the second direction is the same as the longitudinal direction of the transmission shaft.

[0056] In a specific embodiment, the pressing mold 1 includes an upper pressing mold 11 and a lower pressing mold 12. The upper pressing mold 11 and the lower pressing mold 12 are correspondingly arranged up and down. After the two molds are closed, they are used to press the clamp on the transmission shaft that needs to be fastened with the clamp.

[0057] The structure of the upper pressing mold 11 is the same as that of the lower pressing mold 12. The lower pressing mold 12 is taken as an example for detailed description.

[0058] Specifically, if Figure 2 and Figure 3 As shown, the lower pressing mold 12 includes a mold support plate 121, a self-resetting spring 122 and a forming mold seat 123. A self-resetting spring 122 is provided on the top surface of the mold support plate 121, and the mold support plate 121 is connected to the forming mold seat 123 through the self-resetting spring 122.

[0059] Along the length direction of the mold support plate 121 , a first mold half assembly 124 , a second mold half assembly 125 , a third mold half assembly 126 and a synchronization assembly 127 are further provided on the top surface of the mold support plate 121 .

[0060] The first mold half assembly 124 includes a first mold half fixing block 1241, a first cam 1242, a first mold half sliding block 1243, and a first mold half 1244. One end of the first mold half fixing block 1241 is fixedly connected to the mold support plate 121, and the other end thereof is connected to the first end of the first cam 1242. The second end of the first cam 1242 is connected to one end of the first mold half sliding block 1243. The third end of the first cam 1242 is rotatably connected to the molding mold base 123. The other end of the first mold half sliding block 1243 is connected to the first mold half 1244 via a first quick-change assembly.

[0061] The second mold half assembly 125 includes a second mold half fixing block 1251 and a second mold half 1252. One end of the second mold half fixing block 1251 is fixedly connected to the mold support plate 121, and the other end thereof is connected to the second mold half 1252 via a second quick-change assembly.

[0062] The third mold half assembly 126 includes a third mold half fixing block 1261, a third cam 1262, a third mold half sliding block 1263, and a third mold half 1264. One end of the third mold half fixing block 1261 is fixedly connected to the mold support plate 121, and the other end thereof is connected to the first end of the third cam 1262. The second end of the third cam 1262 is connected to one end of the third mold half sliding block 1263. The third end of the third cam 1262 is rotatably connected to the molding mold base 123. The other end of the third mold half sliding block 1263 is connected to the third mold half 1264 via a third quick-change assembly.

[0063] The surfaces of the first mold half 1244, the second mold half 1252 and the third mold half 1264 that contact the clamp are all arc surfaces. When the first mold half 1244, the second mold half 1252 and the third mold half 1264 are closed together, the three arc surfaces form a semicircle.

[0064] Specifically, the first cam 1242 and the third cam 1262 both adopt a T-shaped structure. The ends of the T-shaped structure opposite to the connecting ends of the vertical and horizontal parts can be rotatably connected to the molding die base 123, and the ends of the horizontal part of the T-shaped structure are respectively connected to the first mold half fixing block 1241 or the third mold half fixing block 1261 and the first mold half sliding block 1243 or the third mold half sliding block 1263.

[0065] When the mold support plate 121 in the upper or lower pressing mold 11 or 12 moves the first, second, and third mold half fixing blocks 1241, 1251, and 1261 toward the mold base 123, compressing the self-resetting spring 122, the first, second, and third mold half 1244, 1252, and 1264 are closed. When the self-resetting spring 122 is reset, the mold support plate 121 moves the first, second, and third mold half fixing blocks 1241, 1251, and 1261 away from the mold base 123, separating the first, second, and third mold half 1244, 1252, and 1264.

[0066] The synchronization assembly 127 includes a synchronization block 1271, a synchronization hinge 1272, a driving shaft 1273 and a force shaft 1274. The synchronization block 1271 is fixedly connected to the mold force plate 121, and a synchronization block groove is provided on the side wall of the synchronization block 1271. One end of the synchronization hinge 1272 is clamped in the synchronization block groove, and the other end is connected to one end of the driving shaft 1273. A force shaft 1274 is provided on the top surface of the mold force plate 121 on one side of the driving shaft 1273. The other end of the driving shaft 1273 is used to dock with the force shaft 1274 in the upper pressing mold 11. The top of the force shaft 1274 extends from the top plate of the forming mold base 123 and is used to dock with the driving shaft 1273 in the upper pressing mold 11. By docking the force-bearing shaft 1274 in the lower pressing mold 12 with the pushing shaft 1273 in the upper pressing mold 11, and docking the pushing shaft 1273 in the lower pressing mold 12 with the force-bearing shaft 1274 in the upper pressing mold 11, the lower pressing mold 12 and the upper pressing mold 11 can be precisely clamped.

[0067] In this embodiment, the first, second, and third quick-change assemblies have identical structures, differing in their applications and connections to other components. The first quick-change assembly is used to connect the first mold half 1244 to the first mold half sliding block 1243, the second quick-change assembly is used to connect the second mold half 1252 to the second mold half fixing block 1251, and the third quick-change assembly is used to connect the third mold half 1264 to the third mold half sliding block 1263.

[0068] The first quick-change assembly includes a first quick-change pin, a first quick-change spring, a first push screw and a first steel ball. One end of the first quick-change pin passes through the first mold flap sliding block 1243 and is connected to the first push screw through the first quick-change spring. The first steel ball is arranged in the first sliding block groove opened on the side wall of the first mold flap 1244 close to the first mold flap sliding block 1243. The first quick-change pin and the first steel ball cooperate to connect the first mold flap 1244 to the first mold flap sliding block 1243, or remove the first mold flap 1244 from the first mold flap sliding block 1243, so as to achieve the effect of quickly replacing the first mold flap 1244.

[0069] The second quick-change assembly includes a second quick-change pin, a second quick-change spring, a second push screw and a second steel ball. One end of the second quick-change pin passes through the sliding block of the second mold half 1252 and is connected to the second push screw through the second quick-change spring. The second steel ball is arranged in a fixing block groove opened on the side wall of the second mold half 1252 close to the second mold half fixing block 1251. The second quick-change pin and the second steel ball cooperate to connect the second mold half 1252 to the second mold half fixing block 1251, or remove the second mold half 1252 from the second mold half fixing block 1251, so as to achieve the effect of quickly replacing the second mold half 1252.

[0070] The third quick-change assembly includes a third quick-change pin, a third quick-change spring, a third top screw and a third steel ball. One end of the third quick-change pin passes through the third mold flap sliding block 1263 and is connected to the third top screw through the third quick-change spring. The third quick-change pin is inserted into the third mold flap sliding block 1263. The third steel ball is arranged in the third sliding block groove opened on the side wall of the third mold flap 1264 close to the third mold flap sliding block 1263. The third quick-change pin and the third steel ball cooperate to connect the third mold flap 1264 to the third mold flap sliding block 1263, or remove the third mold flap 1264 from the third mold flap sliding block 1263, so as to achieve the effect of quickly replacing the third mold flap 1264.

[0071] Specifically, the first quick-change pin, the second quick-change pin, and the third quick-change pin adopt the same structure.

[0072] The first quick-change pin includes a fixed locking portion, a steel ball movable portion, and a guide portion, which are connected in sequence. The diameter of the fixed locking portion is larger than that of the steel ball movable portion, and the guide portion is connected to the first push screw via a first quick-change spring. The first steel ball is arranged along the radial direction of the first quick-change pin. The first quick-change pin achieves the effect of connecting or quickly replacing the first mold half 1244 by cooperating with the fixed locking portion and the steel ball movable portion of different diameters and the first steel ball. When the first quick-change pin is pressed relative to the first push screw, the fixed locking portion cooperates with the first steel ball, and the fixed locking portion pushes the first steel ball between the first mold half 1244 and the first mold half sliding block 1243, so that the first mold half 1244 is fixed to the first mold half sliding block 1243. When the first quick-change pin is loosened relative to the first top screw, the movable part of the steel ball cooperates with the first steel ball. Since the diameter of the movable part of the steel ball is smaller than the diameter of the fixed locking part, there is a movable space between the movable part of the steel ball and the first steel ball, so that the first mold half 1244 is no longer fixedly connected to the first mold half sliding block 1243, making it easy to replace the first mold half 1244 from the first mold half sliding block 1243.

[0073] In a specific embodiment, Figure 4 and Figure 5 As shown, the support mechanism 2 includes a C-shaped frame 21, a crossbeam 22, and a hydraulic cylinder 23. The upper pressing mold 11 and the lower pressing mold 12 are both located in the opening of the C-shaped frame 21, and the lower pressing mold 12 is set on the lower crossbeam 22 of the C-shaped frame 21, and the upper pressing mold 11 is correspondingly set above the lower pressing mold 12.

[0074] In the opening of the C-shaped frame 21, the upper pressing mold 11 is connected to an L-shaped fixing plate 24 via a crossbeam 22. A slider is provided on the side of the L-shaped fixing plate 24 facing away from the upper pressing mold 11. Slide rails are provided on the side of the vertical beams of the C-shaped frame 21 facing the upper pressing mold 11. The cooperation of the sliders and the slide rails allows the upper pressing mold 11 to move up and down relative to the lower pressing mold 12.

[0075] A hydraulic cylinder 23 is provided on the upper crossbeam of the C-shaped frame 21 , a pressure sensor 25 is provided on the top of the L-shaped fixing plate 24 , and a telescopic shaft of the hydraulic cylinder 23 passes through the upper crossbeam of the C-shaped frame 21 and is floatingly connected to the pressure sensor 25 .

[0076] A balancing cylinder 26 and a displacement sensor 27 are installed on the thickness-direction side of the C-shaped frame 21. The balancing cylinder 26 balances the gravity of the upper pressing die 11 and the L-shaped fixing plate 24, securing the upper pressing die 11 in a predetermined position. The displacement sensor 27 detects the position of the upper pressing die 11 and transmits this position information to a controller, which then determines whether the final clamp dimensions meet the requirements based on this position information.

[0077] In a specific embodiment, Figure 6 As shown, the pushing mechanism 3 includes a first support plate 31 , a fixed slide rail 32 , a pushing cylinder 33 , a front slide rail support block 34 , a middle slide rail support block 35 , a rear slide rail support block 36 and a gantry 37 .

[0078] The first support plate 31 is arranged along the opening direction of the C-shaped frame 21. A fixed rail 32 and a push cylinder 33 are arranged on the first support plate 31 along the length direction of the first support plate 31. The push cylinder 33 is arranged on one side of the fixed rail 32 in the width direction, and the push direction of the push cylinder 33 is the same as the length direction of the fixed rail 32.

[0079] A front rail support block 34, a middle rail support block 35, and a rear rail support block 36 are evenly spaced apart on the fixed rail 32. The bottom end of a gantry 37 is connected to the front rail support block 34, the middle rail support block 35, and the rear rail support block 36. The gantry 37 is slidably mounted on the fixed rail 32 via the front rail support block 34, the middle rail support block 35, and the rear rail support block 36. A reinforcing rib plate 371 is provided along the thickness of the gantry 37.

[0080] During the pushing process of the pushing cylinder 33 , the gantry 37 moves along with the movement of the front end slide rail support block 34 , the middle end slide rail support block 35 and the rear end slide rail support block 36 on the fixed slide rail 32 .

[0081] In this embodiment, the pushing mechanism 3 further includes a side connection assembly 38, through which the C-shaped frame 21 is connected to the gantry 37. Specifically, the side connection assembly 38 includes a side guide rail 381 and a wide slider 382. Along the height direction of the C-shaped frame 21, the side guide rail 381 is fixedly disposed on the side of the vertical beam of the C-shaped frame 21 away from the opening side, and the wide slider 382 is disposed on the side of the gantry 37 close to the C-shaped frame 21. The wide slider 382 is slidably disposed on the side guide rail 381.

[0082] The side connection assembly 38 further includes a guide rail stopper 383 , which is disposed on the top of the gantry 37 to prevent the C-shaped frame 21 from derailing from the gantry 37 along the height direction.

[0083] In a specific embodiment, Figure 7 As shown, the running mechanism 4 includes a second support plate 41 and a screw assembly 42. The screw assembly 42 is provided on the second support plate 41 and is disposed below the first support plate 31. The screw assembly 42 includes a screw 421, a front support block 422, a rear support block 432, and a servo motor. The screw assembly 42 is used to move components such as the gantry 37 on the first support plate 31. A front support block 422 is provided at one end of the screw 421, and a rear support block 432 is provided at the other end. The front support block 422 and the rear support block 432 are used to support the screw. A servo motor is connected to the screw 421. Specifically, the servo motor can be connected to the end of the screw 421 connected to the rear support block 432. The servo motor is used to drive the screw to rotate and brake, thereby driving the pressing mold 1 and the support mechanism 2 to move along the thickness direction of the C-shaped frame 21 through the first support plate 31.

[0084] Based on the clamp press-fitting system provided in the present application, the present application also provides a clamp press-fitting method, which includes the following steps:

[0085] S1. The transmission shaft to be press-fitted is mounted on one side of the clamp press-fitting system provided in the present application along the thickness direction of the C-shaped frame 21 in the support mechanism 2, so that one end of the transmission shaft can pass through the pressing mold 1 when the transmission shaft is press-fitted.

[0086] S2. Along the length direction of the C-shaped frame 21 in the support mechanism 2, the pushing mechanism 3 drives the pressing mold 1 and the support mechanism 2 to move from the initial position toward the direction of the transmission shaft and move to the working position; along the height direction of the C-shaped frame 21 in the support mechanism 2, the upper pressing mold 11 and the lower pressing mold 12 hold the transmission shaft and then press the transmission shaft with a clamp.

[0087] S3. Along the thickness direction of the C-shaped frame 21 in the support mechanism 2, the walking mechanism 4 drives the pressing mold 1 and the support mechanism 2 to move, so that the upper pressing mold 11 and the lower pressing mold 12 can hold different parts of the length direction of the transmission shaft, and then press the clamp at the position where pressing is required on the transmission shaft.

[0088] S4. After the press-fitting is completed, the pushing mechanism 3 drives the pressing mold 1 and the supporting mechanism 2 to return from the working position to the initial position along the length direction of the C-shaped frame 21 in the supporting mechanism 2.

[0089] The clamp press-fitting system provided herein utilizes a split six-petal structure for the press-fitting die 1, resulting in high clamp press-fitting accuracy and high roundness of the clamp after press-fitting. The clamp press-fitting system provided herein also enables fully automated clamp press-fitting, significantly reducing staff workload, saving product changeover time, and improving replacement efficiency.

[0090] The above description is only an illustrative embodiment of the present application. Without departing from the concept and principle of the present application, any equivalent changes and modifications made by any technician in this field should fall within the scope of protection of the present application.

Claims

1. A clamp press-fitting system, characterized in that: It includes a pressing mold, a supporting mechanism, a pushing mechanism and a walking mechanism; the pressing mold is used to press the clamp, and the supporting mechanism is used to support the pressing mold; the pushing mechanism is used to drive the pressing mold to move forward and backward to press the clamp; the walking mechanism is used to drive the pressing mold to move left and right to switch different pressing positions; the pressing mold includes an upper pressing mold and a lower pressing mold, and the upper pressing mold and the lower pressing mold are correspondingly arranged up and down; the upper pressing mold and the lower pressing mold each include three mold halves that can be closed or separated; The lower pressing mold includes a mold force plate, a self-resetting spring and a forming mold seat, the self-resetting spring is arranged on the top surface of the mold force plate, and the mold force plate is connected to the forming mold seat through the self-resetting spring; Along the length direction of the mold force plate, a first mold half assembly, a second mold half assembly, a third mold half assembly and a synchronization assembly are also provided on the top surface of the mold force plate; the first mold half assembly, the second mold half assembly and the third mold half assembly are used to be closed together to press the clamp with the upper pressing mold; the synchronization assembly is used to synchronize the lower pressing mold and the upper pressing mold when they are closed; the first mold half assembly includes a first mold half fixing block, a first cam, a first mold half sliding block and a first mold half; one end of the first mold half fixing block is fixedly connected to the mold force plate, and the other end of the first mold half is connected to the first end of the first cam, the second end of the first cam is connected to one end of the first mold half sliding block, the third end of the first cam is rotatably connected to the forming mold base, and the other end of the first mold half sliding block is connected to the first mold half through a first quick-change assembly; The support mechanism includes a C-shaped frame, a crossbeam, and a hydraulic cylinder; the upper pressing mold and the lower pressing mold are both located in the opening of the C-shaped frame, and the lower pressing mold is arranged on the lower crossbeam of the C-shaped frame, and the upper pressing mold is correspondingly arranged above the lower pressing mold; In the opening of the C-shaped frame, the upper pressing mold is connected to the L-shaped fixing plate through the crossbeam; a slider is provided on the side of the L-shaped fixing plate away from the upper pressing mold, and a slide rail is provided on the side of the vertical beam of the C-shaped frame close to the upper pressing mold; the slider and the slide rail are used in conjunction with each other; The hydraulic cylinder is provided on the upper crossbeam of the C-shaped frame, a pressure sensor is provided on the top of the L-shaped fixing plate, and the telescopic shaft of the hydraulic cylinder passes through the upper crossbeam of the C-shaped frame and is floatingly connected to the pressure sensor; A balancing cylinder and a displacement sensor are provided on the side surface in the thickness direction of the C-shaped frame. The balancing cylinder is used to balance the gravity of the upper pressing mold and the L-shaped fixing plate, and the displacement sensor is used to detect the position of the upper pressing mold.

2. The clamp press-fitting system according to claim 1, characterized in that: The second mold half assembly includes a second mold half fixing block and a second mold half; one end of the second mold half fixing block is fixedly connected to the mold support plate, and the other end thereof is connected to the second mold half through a second quick-change assembly.

3. The clamp press-fitting system according to claim 2, characterized in that: The third mold half assembly includes a third mold half fixing block, a third cam, a third mold half sliding block and a third mold half; one end of the third mold half fixing block is fixedly connected to the mold support plate, and the other end thereof is connected to the first end of the third cam, the second end of the third cam is connected to one end of the third mold half sliding block, the third end of the third cam is rotatably connected to the forming mold base, and the other end of the third mold half sliding block is connected to the third mold half through a third quick-change assembly.

4. The clamp press-fitting system according to claim 3, characterized in that: The synchronization assembly includes a synchronization block, a synchronization hinge, a driving shaft and a force-bearing shaft; the synchronization block is fixedly connected to the mold force plate, and a synchronization block groove is opened on the side wall of the synchronization block. One end of the synchronization hinge is clamped in the synchronization block groove, and the other end is connected to one end of the driving shaft; Located on one side of the pushing shaft, the force-bearing shaft is arranged on the top surface of the mold force plate; the other end of the pushing shaft is used to dock with the force-bearing shaft in the upper pressing mold; the top of the force-bearing shaft extends from the top plate of the forming mold seat and is used to dock with the pushing shaft in the upper pressing mold.

5. The clamp press-fitting system according to claim 4, characterized in that: The first quick-change assembly, the second quick-change assembly and the third quick-change assembly have the same structure; The first quick-change assembly includes a first quick-change pin, a first quick-change spring, a first push screw and a first steel ball. One end of the first quick-change pin passes through the first mold half sliding block and is connected to the first push screw through the first quick-change spring. The first steel ball is arranged in a first sliding block groove opened on the side wall of the first mold half close to the first mold half sliding block. The first quick-change pin and the first steel ball are used in conjunction with each other.

6. The clamp press-fitting system according to claim 5, characterized in that: The first quick-change pin includes a fixed locking part, a steel ball movable part and a guide part connected in sequence. The diameter of the fixed locking part is larger than the diameter of the steel ball movable part. The guide part is connected to the first top screw through the first quick-change spring; the first steel ball is arranged along the radial direction of the first quick-change pin, and the fixed locking part and the steel ball movable part cooperate with the first steel ball to connect or replace the first mold half.

7. The clamp press-fitting system according to claim 1, characterized in that: The pushing mechanism includes a first support plate, a fixed slide rail, a pushing cylinder, a front slide rail support block, a middle slide rail support block, a rear slide rail support block, a gantry and a side connection assembly; The first support plate is arranged along the opening direction of the C-shaped frame, and the fixed slide rail and the pushing cylinder are arranged on the first support plate along the length direction of the first support plate; the pushing cylinder is arranged on one side in the width direction of the fixed slide rail, and the pushing direction of the pushing cylinder is the same as the length direction of the fixed slide rail; The front end slide rail support block, the middle end slide rail support block and the rear end slide rail support block are evenly spaced on the fixed slide rail; the gantry is slidably arranged on the fixed slide rail through the front end slide rail support block, the middle end slide rail support block and the rear end slide rail support block; The C-shaped frame is connected to the gantry via the side connection assembly.

8. The clamp press-fitting system according to claim 7, characterized in that: The walking mechanism includes a second support plate and a screw assembly, wherein the screw assembly is arranged on the second support plate and the screw assembly is arranged below the first support plate; The screw assembly includes a screw, a front end support block, a rear end support block and a servo motor. The front end support block is provided at one end of the screw, and the rear end support block is provided at the other end. The front end support block and the rear end support block are used to support the screw. The servo motor is connected to the screw, and the servo motor is used to drive the screw to rotate and brake.

9. A clamp press-fitting method, characterized in that: The clamp press-fitting system according to any one of claims 1 to 8 is used for press-fitting, which comprises the following steps: The transmission shaft to be press-fitted is mounted on one side of the clamp press-fitting system along the thickness direction of the C-shaped frame in the support mechanism, so that one end of the transmission shaft can pass through the pressing die when the transmission shaft is press-fitted; Along the length direction of the C-shaped frame in the support mechanism, the pushing mechanism drives the pressing mold and the support mechanism to move from the initial position toward the direction of the transmission shaft to the working position; along the height direction of the C-shaped frame in the support mechanism, the upper pressing mold and the lower pressing mold hold the transmission shaft and then press the transmission shaft with a clamp; Along the thickness direction of the C-shaped frame in the support mechanism, the walking mechanism drives the pressing mold and the support mechanism to move, so that the upper pressing mold and the lower pressing mold can hold different parts of the drive shaft in the length direction, and then press the clamp at the position where press-fitting is required on the drive shaft; After the press-fitting is completed, the pushing mechanism drives the pressing mold and the supporting mechanism to return from the working position to the initial position along the length direction of the C-shaped frame in the supporting mechanism.

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