A transmission shaft press machine

Abstract

The present invention discloses a transmission shaft press machine, comprising a frame with a slide rail, a first movable thruster and a second movable thruster are slidably connected to the slide rail, a first press machine and a second press machine are respectively arranged at both ends of the frame, at least one of the first press machine and the second press machine can drive the first movable thruster and the second movable thruster to move in a direction close to each other; two first shaft neck clamps are also slidably connected to the slide rail, the two first shaft neck clamps clamp and fix the transmission shaft head and the transmission shaft tail, respectively, a plurality of second shaft neck clamps that can clamp and fix the transmission shaft tube are arranged between the two first shaft neck clamps, and the two first shaft neck clamps and the plurality of second shaft neck clamps can keep the transmission shaft head, the transmission shaft tail and the transmission shaft tube coaxially arranged. The present invention has the following advantages and effects: the press machine can avoid radial misalignment, and effectively solves the quality and efficiency problems brought about by the existing press process.

Description

Technical Field

[0001] The invention relates to the technical field of press-fitting equipment, in particular to a transmission shaft press-fitting machine. Background Art

[0002] For example, a Chinese patent with the publication number CN108317157B discloses an automobile transmission shaft, which includes a universal joint fork, a transmission shaft tube and a floating connection sleeve connected in sequence. During the assembly process of the transmission shaft, the operator mainly relies on visually aligning the apertures and press-fitting the above three manually or with the help of a press assembly machine.

[0003] However, this press-fitting method is prone to radial misalignment and cannot guarantee press-fitting accuracy and production efficiency, so it needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a transmission shaft press-fitting machine, which can avoid radial misalignment and effectively solve the quality and efficiency problems brought about in the existing press-fitting process.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a transmission shaft press machine, comprising a frame with a slide rail, a first movable thruster and a second movable thruster are slidably connected to the slide rail, a first press machine and a second press machine are respectively arranged at both ends of the frame, and at least one of the first press machine and the second press machine can drive the first movable thruster and the second movable thruster to move in a direction close to each other;

[0006] Two first shaft neck clamps are also slidably connected to the slide rail, and the two first shaft neck clamps respectively clamp and fix the transmission shaft head and the transmission shaft tail. A plurality of second shaft neck clamps that can clamp and fix the transmission shaft tube are arranged between the two first shaft neck clamps. The two first shaft neck clamps and the plurality of second shaft neck clamps can keep the transmission shaft head, the transmission shaft tail and the transmission shaft tube coaxially arranged.

[0007] The present invention is further configured as follows: the first press comprises a housing, one side of the housing is provided with two mutually independent thrust rods and a connecting rod, the same end of the thrust rod and the connecting rod is fixedly connected via a fixing plate, the other end of the thrust rod is fixedly connected or abuts against the first movable thrust machine / the second movable thrust machine, and one side of the housing is provided with a driving mechanism capable of driving the connecting rod to reciprocate along its axial direction;

[0008] A plurality of limiting holes are arranged on one side of the thrust rod, and a limiting cylinder which can match with the limiting holes is also arranged on one side of the casing, and the telescopic end of the limiting cylinder can pass through the casing and match with the limiting holes inside the casing.

[0009] The present invention is further configured as follows: the first movable thrust machine / the second movable thrust machine both include a movable seat that can cooperate with a slide rail, one side of the movable seat is provided with a coupling flange that can be fixedly connected or abutted with a thrust rod, the other side of the movable seat is provided with a flange locating tenon, and the transmission shaft head and the transmission shaft tail are both provided with flange holes that can cooperate with the flange locating tenon.

[0010] The present invention is further configured as follows: the first movable thrust machine / second movable thrust machine also includes an ejection cylinder, the ejection cylinder is arranged on a cylinder seat, one end of the cylinder seat is fixedly connected to the movable seat, the telescopic end of the ejection cylinder passes through one end of the cylinder seat and is matched with an abutment block, and the abutment block is located on the first shaft neck clamp; when one side of the cylinder seat moves to contact the abutment block, the flange locating tenon and the transmission shaft head / transmission shaft tail are positioned in place.

[0011] The present invention is further configured as follows: the first journal clamp and the second journal clamp each include a pair of clamping fingers, a clamping notch is provided on one side of the pair of clamping fingers facing each other, the clamping notch can be matched with the transmission shaft head / transmission shaft tail and the transmission shaft tube, a swing arm is provided below each of the clamping fingers, a storage groove is provided on one side of each of the swing arms facing the other swing arm, the same rotating arm is provided in the two storage grooves, and the two ends of the rotating arm are respectively rotatably connected to the two swing arms;

[0012] A limit block is provided on each swing arm, and the two limit blocks are respectively located at the two ends of a pair of clamping fingers, and a push rod motor is provided on one side of one of the limit blocks, and the output end of the push rod motor passes through the limit block and is fixedly connected to the clamping finger;

[0013] A connecting rod is provided on one side of each swing arm, one end of each connecting rod is fixedly connected to the lower end surface of the limit block, the other end of each connecting rod is fixedly connected to a slider, and each slider is slidably connected to the slide rail.

[0014] The present invention is further configured as follows: an intermediate pin is passed through one side of the rotating arm, a support bracket for supporting the workpiece is provided at the upper end of the intermediate pin, a spring is provided between the support bracket and the rotating arm, one end of the spring is abutted against the upper end surface of the rotating arm, and the other end of the spring is abutted against the lower end surface of the support bracket.

[0015] The present invention is further configured as follows: a rack is also provided on the frame, the rack is arranged along the length direction of the frame, a driving wheel is meshed on the rack, a bracket abutting against the side of the rack is provided on one side of the driving wheel, a mobile motor is provided on one side of the bracket, the output end of the mobile motor passes through the bracket and is fixedly connected to the driving wheel, a connecting piece is provided on one side of the bracket, and the connecting piece can be connected to the first shaft neck clamp or the second shaft neck clamp.

[0016] The present invention is further configured as follows: the second press comprises a push rod box and a push rod, and one end of the push rod passes through the push rod box and abuts against the second movable thrust machine.

[0017] In summary, the present invention has the following beneficial effects: during the specific press-fitting operation, the transmission shaft head, the transmission shaft tail and the transmission shaft tube can be kept coaxially arranged by two first shaft neck clamps and a plurality of second shaft neck clamps. Then, the first movable thruster and the second movable thruster are driven by two press machines to move toward each other, so that the transmission shaft head, the transmission shaft tube and the transmission shaft tail are press-fitted into a whole, namely, the transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a transmission shaft press machine;

[0019] Figure 2 yes Figure 1 A partial structural schematic diagram of the first press machine and the first movable thrust machine;

[0020] Figure 3 yes Figure 2 The schematic diagram of the structure of the first press with the casing removed;

[0021] Figure 4 yes Figure 3 A magnified schematic diagram of the local structure;

[0022] Figure 5 yes Figure 1 A schematic diagram of the structure of the first movable thruster, the transmission shaft head and the first journal fixture;

[0023] Figure 6 yes Figure 1 The structural diagram of the middle transmission shaft head;

[0024] Figure 7 yes Figure 1 A schematic diagram of the structure of the first journal fixture / second journal fixture cooperating with the slide rail;

[0025] Figure 8 Yes Yes Figure 7 A schematic diagram of the structure in another direction;

[0026] Fig. 9 yes Figure 8 Schematic diagram of the partial structure of the first journal clamp / second journal clamp.

[0027] Figure numerals: 1, slide rail; 2, frame; 3, first movable thrust machine; 4, second movable thrust machine; 5, first press machine; 6, second press machine; 7, first journal fixture; 8, transmission shaft head; 9, transmission shaft tail; 10, transmission shaft tube; 11, second journal fixture; 12, housing; 13, thrust rod; 14, connecting rod; 15, fixing plate; 16, driving mechanism; 17, limiting hole; 18, limiting cylinder; 19, rotating rod; 20, bearing seat; 21, gear; 22, groove; 23, moving seat; 24, Coupling flange; 25, flange locating tenon; 26, flange hole; 27, ejection cylinder; 28, cylinder seat; 29, abutment block; 30, clamping finger; 31, clamping notch; 32, swing arm; 33, storage slot; 34, rotating arm; 35, limit block; 36, push rod motor; 37, connecting rod; 38, slider; 39, middle pin; 40, support bracket; 41, spring; 42, rack; 43, driving wheel; 44, bracket; 45, mobile motor; 46, connecting piece; 47, fixing bracket; 48, push rod box; 49, push rod. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0029] Embodiment 1:

[0030] like Figure 1-Figure 9 As shown, a transmission shaft press machine comprises a frame 2 having a slide rail 1, on which a first movable thrust machine 3 and a second movable thrust machine 4 are slidably connected. A first press machine 5 and a second press machine 6 are respectively arranged at both ends of the frame 2, and the first press machine 5 and the second press machine 6 respectively drive the first movable thrust machine 3 and the second movable thrust machine 4 to move toward each other.

[0031] Two first journal clamps 7 are also slidably connected to the slide rail 1, and the two first journal clamps 7 clamp and fix the transmission shaft head 8 and the transmission shaft tail 9 respectively. A plurality of second journal clamps 11 are arranged between the two first journal clamps 7, which can clamp and fix the transmission shaft tube 10. The two first journal clamps 7 and the plurality of second journal clamps 11 can keep the transmission shaft head 8, the transmission shaft tail 9 and the transmission shaft tube 10 coaxially arranged.

[0032] During the specific press-fitting operation, the transmission shaft head 8, the transmission shaft tail 9 and the transmission shaft tube 10 can be kept coaxially arranged by two first journal clamps 7 and a plurality of second journal clamps 11. Then, the first movable thruster 3 and the second movable thruster 4 are driven by two presses to move toward each other, so that the transmission shaft head 8, the transmission shaft tube 10 and the transmission shaft tail 9 are press-fitted into a whole, namely, the transmission shaft.

[0033] Furthermore, the first press machine 5 and the second press machine 6 each include a housing 12, and two mutually independent thrust rods 13 and a connecting rod 14 are provided on one side of the housing 12, and the same end of the thrust rod 13 and the connecting rod 14 is fixedly connected through a fixing plate 15. The other end of the thrust rod 13 is fixedly connected or abutted with the first movable thrust machine 3 / the second movable thrust machine 4. A driving mechanism 16 that can drive the connecting rod 14 to reciprocate along its axial direction is provided on one side of the housing 12.

[0034] A plurality of limiting holes 17 are provided on one side of the thrust rod 13 , and a limiting cylinder 18 which can cooperate with the limiting holes 17 is also provided on one side of the housing 12 . The telescopic end of the limiting cylinder 18 can pass through the housing 12 and cooperate with the limiting hole 17 inside the housing 12 .

[0035] During specific use, the driving mechanism 16 drives the connecting rod 14 to reciprocate. Since the same end of the connecting rod 14 and the thrust rod 13 is connected through the fixed plate 15, the reciprocating motion of the connecting rod 14 will synchronously drive the thrust rod 13 to reciprocate, and then the thrust rod 13 acts on the first movable thrust machine 3 / the second movable thrust machine 4, so that the first movable thrust machine 3 / the second movable thrust machine 4 moves on the slide rail 1.

[0036] In addition, since the application field emphasized in this application is press-fitting, there will be a reaction force during the press-fitting process. When the first movable thruster 3 / the second movable thruster 4 is pushed to a certain position, the limit cylinder 18 extends and cooperates with the limit hole 17 on the thrust rod 13 to prevent the force from reacting to the drive mechanism 16, so as to protect the drive mechanism 16.

[0037] Furthermore, the driving mechanism 16 includes a motor, a large pulley, a small pulley and a belt. A motor mounting seat for fixing the motor is provided on the frame 2, the output end of the motor passes through the motor mounting seat and is connected to the axis of the small pulley, the small pulley and the large pulley are connected by a belt, a rotating rod 19 is passed through the axis of the large pulley, and a bearing seat 20 is provided at one end of the rotating rod 19 that penetrates into the housing 12, and the bearing seat 20 is fixed to the inner wall of the housing 12.

[0038] A gear 21 is disposed at one end of the rotating rod 19 in the housing 12 , and a plurality of grooves 22 that can cooperate with the gear 21 are formed on the surface of the linkage rod 14 . The rotation of the gear 21 can drive the linkage rod 14 to move axially through the matching grooves 22 .

[0039] Further, the first movable thruster 3 / the second movable thruster 4 both include a movable seat 23 that can be matched with the slide rail 1, a coupling flange 24 that can be fixedly connected or abutted with the thrust rod 13 is provided on one side of the movable seat 23, and a flange positioning tenon 25 is provided on the other side of the movable seat 23. Flange holes 26 that can be matched with the flange positioning tenon 25 are provided on the transmission shaft head 8 and the transmission shaft tail 9.

[0040] During press fitting, the thrust rod 13 acts on the coupling flange 24 on one side of the moving seat 23 to push the moving seat 23. This allows the flange positioning tenon 25 on one side of the moving seat 23 to be inserted into the flange hole 26 on the transmission shaft head 8 / transmission shaft tail 9. The flange positioning tenon 25 cooperates with the flange hole 26 on the transmission shaft head 8 / transmission shaft tail 9 to limit the position height of the transmission shaft head 8 / transmission shaft tail 9, and further ensures that the transmission shaft head 8 and the transmission shaft tail 9 are coaxially arranged.

[0041] It should be noted that the transmission shaft head 8 described in this embodiment is equivalent to the universal joint fork mentioned in the background technology, and the transmission shaft tail 9 is equivalent to the floating connection sleeve mentioned in the background technology. Since the universal joint fork and the floating connection sleeve are the two ends of the transmission shaft, flange holes 26 are set in their own structures. However, this application makes use of the structure of the transmission shaft itself to improve installation efficiency and accuracy.

[0042] Further, the first movable thruster 3 / the second movable thruster 4 further comprises a push-out cylinder 27, which is arranged on a cylinder seat 28, and one end of the cylinder seat 28 is fixedly connected to the movable seat 23. The telescopic end of the push-out cylinder 27 passes through one end of the cylinder seat 28 and is matched with an abutment block 29, which is located on the first journal fixture 7. When one side of the cylinder seat 28 moves to contact the abutment block 29, the flange positioning tenon 25 and the transmission shaft head 8 / transmission shaft tail 9 are positioned in place.

[0043] When the thrust rod 13 drives the movement of the movable seat 23, one end of the flange positioning tenon 25 is inserted into the flange hole 26 of the workpiece (referring to the transmission shaft head 8 and the transmission shaft tail 9), and the first movable thruster 3 / the second movable thruster 4 is continuously pushed to move to the position where the cylinder seat 28 contacts the abutment block 29, at which time the flange positioning tenon 25 and the workpiece are positioned in place. When the workpiece is pressed and the flange positioning tenon 25 needs to be separated, the push cylinder 27 is extended to act on the abutment block 29, so that the workpiece and the flange positioning tenon 25 are separated.

[0044] Furthermore, the first journal clamp 7 and the second journal clamp 11 each include a pair of clamping fingers 30, and a clamping notch 31 is provided on the opposite sides of the pair of clamping fingers 30, and the clamping notch 31 can be matched with the transmission shaft head 8 / transmission shaft tail 9 and the transmission shaft tube 10. A swing arm 32 is provided below each clamping finger 30, and a storage groove 33 is provided on the side of each swing arm 32 facing the other swing arm 32, and the same rotating arm 34 is provided in the two storage grooves 33, and the two ends of the rotating arm 34 are respectively connected to the two swing arms 32 for rotation.

[0045] Each swing arm 32 is provided with a limit block 35, and the two limit blocks 35 are respectively located at the two ends of a pair of clamping fingers 30 to limit the maximum displacement of the pair of clamping fingers 30 moving away from each other. A push rod 49 motor 36 is provided on one side of one of the limit blocks 35, and the output end of the push rod 49 motor 36 passes through the limit block 35 and is fixedly connected to the clamping finger 30.

[0046] A connecting rod 37 is provided on one side of each swing arm 32. One end of each connecting rod 37 is fixedly connected to the lower end surface of the limit block 35. The other end of each connecting rod 37 is fixedly connected to a slider 38. Each slider 38 is slidably connected to the slide rail.

[0047] When the workpiece is placed in the clamping notch 31 formed by a pair of clamping fingers 30, the output end of the push rod 49 motor 36 acts on one of the clamping fingers 30, and the two swing arms 32 rotate around the hinge points at both ends of the rotating arm 34. The pair of clamping fingers 30 move in a direction close to each other, thereby achieving an angle on the workpiece. It should be particularly noted that the movement displacement of the pair of clamping fingers 30 is the same, that is, the movement displacement of one of the clamping fingers 30 is the same as the movement displacement of the other clamping finger 30. Therefore, the transmission shaft head 8, the transmission shaft tail 9 and the transmission shaft tube 10 can be kept coaxially arranged.

[0048] Furthermore, an intermediate pin 39 is passed through one side of the rotating arm 34, and a support bracket 40 for supporting the workpiece is provided at the upper end of the intermediate pin 39. A spring 41 is provided between the support bracket 40 and the rotating arm 34, and one end of the spring 41 abuts against the upper end surface of the rotating arm 34, and the other end of the spring 41 abuts against the lower end surface of the support bracket 40.

[0049] First, the present application sets an intermediate pin 39 in the middle of the rotating arm 34, so that under the action of the push rod 49 motor 36, the rotating arm 34 can rotate around the intermediate pin 39. At the same time, the swing arm 32 will rotate around the hinge point with the rotating arm 34 and rotate in the direction of clamping. During the clamping process, the spring 41 adjusts itself to the workpiece to avoid misalignment during press-fitting that affects the press-fitting quality. When it is necessary to release the clamping finger 30, the push rod 49 motor 36 is driven in reverse to make the rotating arm 34 and the swing arm 32 rotate in the opposite direction to release the clamping finger 30.

[0050] Furthermore, the frame 2 is also provided with a rack 42, which is arranged along the length direction of the frame 2. A driving wheel 43 is meshed with the rack 42, and a bracket 44 is provided on one side of the driving wheel 43 to abut against the side of the rack 42, and a mobile motor 45 is provided on one side of the bracket 44, and the output end of the mobile motor 45 passes through the bracket 44 and is fixedly connected to the driving wheel 43. A connecting member 46 is provided on one side of the bracket 44, and the connecting member 46 can be connected to the first journal fixture 7 or the second journal fixture 11.

[0051] The above components are connected to any first journal clamp 7 or second journal clamp 11 through the connecting piece 46, so that one or more or all of the two first journal clamps 7 and several second journal clamps 11 have a moving effect, thereby clamping the required clamping parts.

[0052] Furthermore, the first journal fixture 7 also includes a fixing bracket 47, which can support the transmission shaft head 8 or the transmission shaft tail 9, and the fixing bracket 47 can be connected to the supporting bracket 40 (not shown in the drawings).

[0053] Embodiment 2:

[0054] The difference from Example 1 is that: Figure 1 As shown, the second press machine 6 includes a push rod box 48 and a push rod 49 , and the push rod 49 passes through one end of the push rod box 48 and abuts against the second movable thrust machine 4 .

[0055] The difference from the first embodiment is that the second press 6 is fixed, that is, it does not have the effect of driving the movable thruster. In specific use, only one of the first press 5 and the second press 6 needs to be driven to complete the entire press-fitting process.

[0056] Working process:

[0057] 1. Place the transmission shaft head 8 and the transmission shaft tail 9 on the fixing bracket 47 of the first journal fixture 7, and place the transmission shaft tube 10 on the supporting bracket 40 of the second journal fixture 11.

[0058] 2. Start the press machine, and then drive the first movable thrust machine 3 / the second movable thrust machine 4, so that the flange positioning tenon 25 is inserted into the flange positioning hole of the workpiece and stops moving for pre-positioning.

[0059] 3. The first journal clamp 7 and the second journal clamp 11 start the push rod 49 motor 36 to move the clamping fingers 30 toward each other to clamp the workpiece.

[0060] 4. Then drive the press to press the three parts together into a whole. This completes the press assembly of the transmission shaft.

[0061] In addition, the pre-positioning process of step 2, that is, the flange positioning tenon 25 is inserted into the flange positioning hole of the workpiece, can also be completed by driving the first journal fixture 7 to move on the slide rail 1 by the moving motor 45. The present invention should also protect and protect this technical solution.

[0062] In addition, the press-fitting process in step 4 is mainly performed by a press machine, and is supplemented by a moving motor 45 driving the first journal fixture 7 / the second journal fixture 11 to move on the slide rail 1 , thereby completing the press-fitting process together.

[0063] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A transmission shaft press machine, comprising a frame (2) having a slide rail (1), characterized in that: A first movable thruster (3) and a second movable thruster (4) are slidably connected to the slide rail (1); a first press machine (5) and a second press machine (6) are respectively arranged at both ends of the frame (2); at least one of the first press machine (5) and the second press machine (6) can drive the first movable thruster (3) and the second movable thruster (4) to move in a direction toward each other; The slide rail (1) is also slidably connected to two first shaft neck clamps (7), the two first shaft neck clamps (7) respectively clamp and fix the transmission shaft head (8) and the transmission shaft tail (9), and a plurality of second shaft neck clamps (11) are arranged between the two first shaft neck clamps (7) for clamping and fixing the transmission shaft tube (10), and the two first shaft neck clamps (7) and the plurality of second shaft neck clamps (11) can keep the transmission shaft head (8), the transmission shaft tail (9) and the transmission shaft tube (10) coaxially arranged; The first press machine (5) comprises a housing (12), one side of the housing (12) is provided with two mutually independent thrust rods (13) and a connecting rod (14), the same end of the thrust rod (13) and the connecting rod (14) are fixedly connected via a fixing plate (15), the other end of the thrust rod (13) is fixedly connected or abuts against the first movable thrust machine (3) / the second movable thrust machine (4), and one side of the housing (12) is provided with a driving mechanism (16) capable of driving the connecting rod (14) to reciprocate along its axial direction; A plurality of limiting holes (17) are arranged on one side of the thrust rod (13), and a limiting cylinder (18) which can cooperate with the limiting holes (17) is also arranged on one side of the housing (12), and the telescopic end of the limiting cylinder (18) can pass through the housing (12) and cooperate with the limiting hole (17) inside the housing (12); The first movable thruster (3) / the second movable thruster (4) both comprise a movable seat (23) that can be matched with the slide rail (1), one side of the movable seat (23) is provided with a coupling flange (24) that can be fixedly connected or abutted with the thrust rod (13), the other side of the movable seat (23) is provided with a flange positioning tenon (25), and the transmission shaft head (8) and the transmission shaft tail (9) are both provided with flange holes (26) that can be matched with the flange positioning tenon (25); The first shaft neck clamp (7) and the second shaft neck clamp (11) each include a pair of clamping fingers (30), and a clamping notch (31) is provided on the opposite sides of the pair of clamping fingers (30). The clamping notch (31) can be matched with the transmission shaft head (8) / transmission shaft tail (9) and the transmission shaft tube (10). A swing arm (32) is provided below each of the clamping fingers (30), and a storage groove (33) is provided on the side of each of the swing arms (32) facing the other swing arm (32). One end of a rotating arm (34) is respectively provided in the two storage grooves (33), and the two ends of the rotating arm (34) are respectively rotatably connected to the two swing arms (32); A limit block (35) is provided on each swing arm (32), and the two limit blocks (35) are respectively located at the two ends of a pair of clamping fingers (30), and a push rod motor (36) is provided on one side of one of the limit blocks (35), and the output end of the push rod motor (36) passes through the limit block (35) and is fixedly connected to the clamping finger (30); A connecting rod (37) is provided on one side of each swing arm (32), one end of each connecting rod (37) is fixedly connected to the lower end surface of the limit block (35), the other end of each connecting rod (37) is fixedly connected to a sliding block (38), and each sliding block (38) is slidably connected to the slide rail.

2. A transmission shaft press-fitting machine according to claim 1, characterized in that: The first movable thruster (3) / the second movable thruster (4) further comprises an ejection cylinder (27), wherein the ejection cylinder (27) is arranged on a cylinder seat (28), one end of the cylinder seat (28) is fixedly connected to the movable seat (23), and the telescopic end of the ejection cylinder (27) passes through one end of the cylinder seat (28) and is matched with an abutment block (29), wherein the abutment block (29) is located on the first journal fixture (7); when one side of the cylinder seat (28) moves to contact with the abutment block (29), the flange positioning tenon (25) and the transmission shaft head (8) / transmission shaft tail (9) are positioned in place; The second press machine (6) comprises a push rod box (48) and a push rod (49), wherein the push rod (49) passes through one end of the push rod box (48) and abuts against the second movable thrust machine (4).

3. The transmission shaft press-fitting machine according to claim 1, characterized in that: A middle pin (39) is provided on one side of the rotating arm (34); a support bracket (40) for supporting a workpiece is provided at the upper end of the middle pin (39); a spring (41) is provided between the support bracket (40) and the rotating arm (34); one end of the spring (41) abuts against the upper end surface of the rotating arm (34); and the other end of the spring (41) abuts against the lower end surface of the support bracket (40).

4. A transmission shaft press-fitting machine according to claim 3, characterized in that: The frame (2) is also provided with a rack (42), the rack (42) being arranged along the length direction of the frame (2), the rack (42) being meshed with a driving wheel (43), one side of the driving wheel (43) being provided with a bracket (44) abutting against the side of the rack (42), one side of the bracket (44) being provided with a moving motor (45), the output end of the moving motor (45) passing through the bracket (44) being fixedly connected to the driving wheel (43), one side of the bracket (44) being provided with a connecting piece (46), the connecting piece (46) being connectable to the first shaft neck clamp (7) or the second shaft neck clamp (11).

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