WO2022001113A1

WO2022001113A1 - Transmission shaft press-fit machine

Info

Publication number: WO2022001113A1
Application number: PCT/CN2021/075758
Authority: WO
Inventors: 徐志坚; 梁勇; 吴胜斌; 徐建华
Original assignee: 浙江佛尔泰智能设备有限公司
Priority date: 2020-06-29
Filing date: 2021-02-07
Publication date: 2022-01-06
Also published as: CN111761349A

Abstract

A transmission shaft press-fit machine, comprising a machine frame (2) having a slide rail (1). The slide rail (1) is slidably connected to a first movable thrust machine (3) and a second movable thrust machine (4); both ends of the machine frame (2) are respectively provided with a first press machine (5) and a second press machine (6); at least one of the first press machine (5) and the second press machine (6) can drive the first movable thrust machine (3) and the second movable thrust machine (4) to move toward the directions of approaching each other; the slide rail (1) is further slidably connected to two first shaft journal fixtures (7); the two first shaft journal fixtures (7) respectively clamp and fix a transmission shaft head (8) and a transmission shaft tail (9); several second shaft journal fixtures (11) capable of clamping and fixing a transmission shaft tube (10) are disposed between the two first shaft journal fixtures (7); the two first shaft journal fixtures (7) and the several second shaft journal fixtures (11) can make the transmission shaft head (8), the transmission shaft tail (9), and the transmission shaft tube (10) be coaxially arranged. The device has the following advantage and effect: such a press-fit machine can avoid radial malposition, and the quality and efficiency problems caused in the existing press-fit process are effectively solved.

Description

A drive shaft press machine

technical field

The invention relates to the technical field of press-fitting equipment, in particular to a drive shaft press-fitting machine.

Background technique

For example, the Chinese Patent Publication No. CN108317157B discloses an automobile transmission shaft, which includes a universal joint fork, a transmission shaft tube and a floating connection sleeve connected in sequence. In the assembly process of the transmission shaft, the operator mainly relies on the visual inspection of the aperture alignment, and the above three are pressed manually or by means of a press assembly machine.

However, this press-fitting method is prone to radial dislocation, and cannot guarantee the press-fitting accuracy and production efficiency, so it needs to be improved.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a drive shaft pressing machine, which can avoid the radial dislocation phenomenon, and effectively solve the problems of quality and efficiency brought about by the existing pressing process.

The above technical purpose of the present invention is achieved through the following technical solutions: a drive shaft press machine, including a frame with a sliding rail, on which a first movable thrust machine and a second movable thrust are slidably connected The two ends of the frame are respectively provided with a first press and a second press, and at least one of the first press and the second press can drive the first movable thruster and the second movable thrust The machines move in the direction of approaching each other;

The slide rail is also slidably connected with two first journal clamps. The two first journal clamps clamp and fix the transmission shaft head and the transmission shaft tail respectively. There are several second journal clamps that can clamp and fix the transmission shaft tube, and the two first journal clamps and several second journal clamps can make the transmission shaft head, transmission shaft tail and transmission shaft tube Keep the concentric setting.

The present invention is further provided as follows: the first press includes a casing, and two mutually independent thrust rods and linkage rods are pierced on one side of the casing, and the thrust rod and the linkage rod are identical to each other. The ends are fixedly connected by a fixing plate, the other end of the thrust rod is fixedly connected or abutted with the first movable thruster/second movable thruster, and one side of the casing is provided with a drivable linkage rod along the Axial reciprocating drive mechanism;

One side of the thrust rod is provided with several limit holes, and one side of the casing is also provided with a limit cylinder that can be matched with the limit holes, and the telescopic end of the limit cylinder can pass through the casing It is matched with the limit hole in its interior.

The present invention is further provided as follows: the first movable thrust machine/the second movable thrust machine each includes a movable seat that can be matched with the sliding rail, and one side of the movable seat is provided with a movable seat that can be fixedly connected with the thrust rod Or the abutting coupling flange, the other side of the movable seat is provided with a flange positioning tenon, and the transmission shaft head and the transmission shaft tail are provided with flange holes which can be matched with the flange positioning tenon.

The present invention is further provided as follows: the first movable thrust machine/second movable thrust machine further includes a push-out cylinder, the push-out cylinder is arranged on the cylinder seat, and one end of the cylinder seat is fixedly connected with the movable seat, so One end of the telescopic end of the push-out cylinder passing through the cylinder seat is fitted with an abutment block, and the abutment block is located on the first journal clamp; when one side of the cylinder seat moves to contact with the abutment block, the The flange positioning tenon and the drive shaft head/drive shaft tail are positioned in place.

The present invention is further provided as follows: the first journal clamp and the second journal clamp both include a pair of clamping fingers, and the opposite sides of the pair of clamping fingers are provided with clamping notches, and the clamping notches can be In cooperation with the transmission shaft head/transmission shaft tail and the transmission shaft tube, a swing arm is arranged under each of the clamping fingers, and a storage slot is arranged on the side of each swing arm facing the other swing arm. Each of the storage slots is provided with the same rotating arm, and the two ends of the rotating arm are respectively rotatably connected with the two swing arms;

Each of the swing arms is provided with a limit block, two of the limit blocks are respectively located at both ends of a pair of clamping fingers, one side of the limit block is provided with a push rod motor, and the push rod The output end of the motor is fixedly connected with the clamp finger through the limit block;

One side of each swing arm is provided with a connecting rod, one end of each connecting rod is fixedly connected to the lower end surface of the limit block, and the other end of each connecting rod is fixedly connected with a sliding block, each Each of the sliding blocks is slidably connected with the sliding rail.

The present invention is further provided as follows: one side of the rotating arm is provided with an intermediate pin, the upper end of the intermediate pin is provided with a supporting bracket for supporting the workpiece, a spring is arranged between the supporting bracket and the rotating arm, and the One end of the spring is in contact with the upper end surface of the rotating arm, and the other end of the spring is in contact with the lower end surface of the support bracket.

The present invention is further provided as follows: the rack is further provided with a rack, the rack is arranged along the length direction of the rack, a drive wheel is engaged with the rack, and one side of the drive wheel is provided with abutting A bracket on the side of the rack, one side of the bracket is provided with a mobile motor, the output end of the mobile motor is fixedly connected to the drive wheel through the bracket, one side of the bracket is provided with a connecting piece, the connecting piece Can be connected with the first journal clamp or the second journal clamp.

The present invention is further provided as follows: the second press includes a push rod box and a push rod, and one end of the push rod passing through the push rod box abuts against the second movable thrust machine.

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 at the same level by the two first journal clamps and the several second journal clamps. Pivot settings. Then, the first movable thrust machine and the second movable thrust machine are respectively driven to move toward each other by the two presses. The drive shaft head, the drive shaft tube and the drive shaft tail are press-fitted into a whole, that is, the drive shaft.

Description of drawings

Fig. 1 is a structural schematic diagram of a drive shaft press;

Fig. 2 is the partial structure schematic diagram of the first press machine and the first movable thrust machine in Fig. 1;

Fig. 3 is the structural representation after removing the casing of the first press in Fig. 2;

Fig. 4 is the partial structure enlarged schematic diagram of Fig. 3;

Fig. 5 is the structural representation of the first movable thruster, the drive shaft head and the first journal clamp in Fig. 1;

Fig. 6 is the structural representation of the drive shaft head in Fig. 1;

Fig. 7 is the structural representation of the first journal clamp/second journal clamp in Fig. 1 in cooperation with the slide rail;

Fig. 8 is the structural representation in another direction of Fig. 7;

FIG. 9 is a partial structural schematic diagram of the first journal clamp/second journal clamp in FIG. 8 .

Reference numerals: 1, slide rail; 2, frame; 3, first movable thruster; 4, second movable thruster; 5, first press; 6, second press; 7, first Journal clamp; 8, drive shaft head; 9, drive shaft tail; 10, drive shaft tube; 11, second journal clamp; 12, casing; 13, thrust rod; 14, linkage rod; 15, fixed plate ;16, drive mechanism; 17, limit hole; 18, limit cylinder; 19, rotating rod; 20, bearing seat; 21, gear; 22, groove; 23, moving seat; 24, coupling flange; 25 , flange positioning tenon; 26, flange hole; 27, push out cylinder; 28, cylinder seat; 29, abutment block; 30, clamp finger; 31, clamping gap; 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, drive wheel; 44, bracket; 45, mobile motor; 46, connector; 47, fixed bracket; 48, push rod box; 49, push rod.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings.

Example 1:

As shown in FIGS. 1-9 , a drive shaft press machine includes a frame 2 with a sliding rail 1 , and a first movable thruster 3 and a second movable thruster 4 are slidably connected to the sliding rail 1 . The two ends of the frame 2 are respectively provided with a first press 5 and a second press 6. The first press 5 and the second press 6 drive the first movable thruster 3 and the second movable thruster 4 to move toward each other. move in the direction of approaching each other.

The slide rail 1 is also slidably connected with two first journal clamps 7, 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 that can clamp and fix the transmission shaft tube 10 are arranged between the two first journal clamps 7 . The two first journal clamps 7 and the several second journal clamps 11 can keep the transmission shaft head 8 , the transmission shaft tail 9 and the transmission shaft tube 10 coaxially arranged.

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 the two first journal clamps 7 and the several second journal clamps 11 . Then, the first movable thruster 3 and the second movable thruster 4 are respectively driven to move toward each other by the two presses. The transmission shaft head 8, the transmission shaft tube 10 and the transmission shaft tail 9 are press-fitted into a whole, that is, the transmission shaft.

Further, both the first press 5 and the second press 6 include an organic casing 12, and two mutually independent thrust rods 13 and linkage rods 14 are pierced on one side of the casing 12, and the thrust rods 13 are linked with each other. The same end of the rod 14 is fixedly connected by the fixing plate 15 . The other end of the thrust rod 13 is fixedly connected or abutted with the first movable thruster 3 / the second movable thruster 4 . One side of the casing 12 is provided with a driving mechanism 16 which can drive the linkage rod 14 to reciprocate along its axial direction.

One side of the thrust rod 13 is provided with a number of limit holes 17, and one side of the casing 12 is also provided with a limit cylinder 18 that can cooperate with the limit holes 17, and the telescopic end of the limit cylinder 18 can pass through the casing. 12 is matched with the limiting hole 17 in its interior.

In specific use, the driving mechanism 16 drives the interlocking rod 14 to reciprocate. Since the same end of the interlocking rod 14 and the thrust rod 13 is connected by the fixing plate 15, the interlocking rod 14 will synchronously drive the thrust rod 13 to reciprocate when it reciprocates. Then, the thrust rod 13 acts on the first movable thruster 3 / the second movable thruster 4 to make the first movable thruster 3 / the second movable thruster 4 move on the slide rail 1 .

Furthermore, since the field of application highlighted in this application is press fitting, there will be a force reaction during the press fitting process. When the first movable thruster 3/second movable thruster 4 is pushed to a certain position, the extending motion of the limiting cylinder 18 is coordinated with the limiting hole 17 on the thrust rod 13 to prevent the force from reacting on the drive mechanism 16 to protect the drive mechanism 16 .

Further, the driving mechanism 16 includes a motor, a large pulley, a small pulley and a belt. The frame 2 is provided with a motor mounting seat for fixing the motor. The output end of the motor is connected to the shaft center of the small pulley through the motor mounting seat. The small pulley and the large pulley are connected by a belt. There is a rotating rod 19 , and one end of the rotating rod 19 which penetrates into the casing 12 is provided with a bearing seat 20 , and the bearing seat 20 is fixed on the inner wall of the casing 12 .

One end of the rotating rod 19 in the casing 12 is provided with a gear 21, and the surface of the link rod 14 is provided with a plurality of grooves 22 that can be matched with the gear 21. The rotation of the gear 21 can drive the connection through the matched grooves 22. The moving rod 14 moves in its axial direction.

Further, each of the first movable thrust machine 3/second movable thrust machine 4 includes a movable seat 23 that can cooperate with the slide rail 1, and one side of the movable seat 23 is provided with a fixed connection or contact with the thrust rod 13. The other side of the movable seat 23 is provided with a flange positioning tenon 25. The transmission shaft head 8 and the transmission shaft tail 9 are provided with flange holes 26 which can be matched with the flange positioning tenons 25 .

During press fitting, the thrust rod 13 acts on the coupling flange 24 on one side of the movable seat 23 to push the movable seat 23 . The flange positioning tenon 25 on one side of the movable seat 23 can be inserted into the flange hole 26 on the transmission shaft head 8/transmission shaft tail 9. The flange positioning tenon 25 is matched with the flange hole 26 on the drive shaft head 8/drive shaft tail 9 to limit the position height of the drive shaft head 8/drive shaft tail 9, and further ensure that the drive shaft head 8 and the drive shaft The tail 9 is arranged concentrically.

It should be noted that the transmission shaft head 8 described in this embodiment is equivalent to the universal joint fork indicated in the background art, and the transmission shaft tail 9 is equivalent to the floating connection sleeve indicated in the background art. Since the universal joint fork and the floating connection sleeve are used as the two ends of the transmission shaft, the flange hole 26 is provided in its own structure. In the present application, the structure of the transmission shaft itself is utilized to improve the installation efficiency and accuracy.

Further, the first movable thrust machine 3/the second movable thrust machine 4 also includes a push-out cylinder 27, the push-out cylinder 27 is arranged on the cylinder base 28, and one end of the cylinder base 28 is fixedly connected with the movable base 23. One end of the telescopic end of the push-out cylinder 27 passing through the cylinder seat 28 is fitted with an abutment block 29 , and the abutment block 29 is located on the first journal clamp 7 . When one side of the cylinder seat 28 is moved to contact with the abutment block 29, the flange positioning tenon 25 and the transmission shaft head 8/the transmission shaft tail 9 are positioned in place.

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 drive shaft head 8 and the drive shaft tail 9), and continues to push the first movable thruster 3/ The second movable thrust machine 4 moves to the position where the cylinder base 28 contacts the abutting block 29, and at this time, the flange positioning tenon 25 and the workpiece are positioned in place. When the workpiece is press-fitted and the flange positioning tenon 25 needs to be separated, the push-out cylinder 27 acts on the abutting block 29 to make the workpiece separate from the flange positioning tenon 25 .

Further, the first journal clamp 7 and the second journal clamp 11 both include a pair of clamping fingers 30, and the opposite sides of the pair of clamping fingers 30 are provided with clamping notches 31, and the clamping notches 31 can be connected with the transmission shaft. The head 8/transmission shaft tail 9 and the transmission shaft tube 10 are matched. A swing arm 32 is provided below each clamp finger 30 , a storage slot 33 is provided on the side of each swing arm 32 facing the other swing arm 32 , and the same rotating arm 34 is arranged in the two storage slots 33 , Both ends of the rotating arm 34 are rotatably connected to the two swing arms 32 respectively.

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

One side of each swing arm 32 is provided with a connecting rod 37, one end of each connecting rod 37 is fixedly connected to the lower end surface of the limit block 35, and the other end of each connecting rod 37 is fixedly connected with a sliding block 38, each Each of the sliding blocks 38 is slidably connected with the sliding rail.

When the workpiece is placed in the clamping gap 31 formed by the pair of clamping fingers 30 , the output end of the motor 36 of the push rod 49 acts on one of the clamping fingers 30 . End hinge point for rotation. The pair of clamping fingers 30 are moved toward the direction of approaching each other, so as to realize the included angle to the workpiece. It should be noted that the movement and displacement of a pair of clamping fingers 30 are the same, that is, as much as one clamping finger 30 moves, the other clamping finger 30 also moves. Therefore, the drive shaft head 8 , the drive shaft tail 9 and the drive shaft tube 10 can be kept coaxially arranged.

Further, one side of the rotating arm 34 is provided with an intermediate pin 39, the upper end of the intermediate pin 39 is provided with a support bracket 40 for supporting the workpiece, and a spring 41 is arranged between the support bracket 40 and the rotating arm 34, and one end of the spring 41 is connected to the workpiece. The upper end surface of the rotating arm 34 is abutted against, and the other end of the spring 41 is abutted against the lower end surface of the support bracket 40 .

First, in the present application, an intermediate pin 39 is arranged in the middle of the rotating arm 34 , so that under the action of the motor 36 of the push rod 49 , 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 is adapted to adjust the workpiece, so as to avoid the misalignment during the press-fitting and affect the press-fitting quality. When the clamp finger 30 needs to be released, the push rod 49 and the motor 36 are reversely driven to make the rotating arm 34 and the swing arm 32 rotate in opposite directions to release the clamp finger 30 .

Further, the rack 2 is also provided with a rack 42 , and the rack 42 is arranged along the length direction of the rack 2 . The rack 42 is engaged with a drive wheel 43, one side of the drive wheel 43 is provided with a bracket 44 abutting on the side of the rack 42, one side of the bracket 44 is provided with a moving motor 45, and the output end of the moving motor 45 passes through the bracket 44 is fixedly connected to the drive wheel 43 . A connecting piece 46 is provided on one side of the bracket 44 , and the connecting piece 46 can be connected with the first journal clamp 7 or the second journal clamp 11 .

The above components are connected with any first journal clamp 7 or second journal clamp 11 through the connecting piece 46 , so that one or more of the two first journal clamps 7 and several second journal clamps 11 One or all of them have a moving effect, and then the desired clamping part is clamped.

Further, the first journal clamp 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 with the supporting bracket 40 (not shown in the drawings) .

Example 2:

The difference from Embodiment 1 is: as shown in FIG. 1 , the second press 6 includes a push rod box 48 and a push rod 49 , and one end of the push rod 49 passing through the push rod box 48 abuts against the second movable thrust machine 4 .

The difference from Embodiment 1 is that the second press 6 is of a fixed type, that is, it does not have the effect of driving a 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.

work process:

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 support bracket 40 of the second journal fixture 11 .

2. Start the press, and then drive the first movable thruster 3/second movable thruster 4, so that the flange positioning tenon 25 is inserted into the flange positioning hole of the workpiece to stop movement and perform pre-positioning.

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

4. Re-drive the press, so that the three are pressed into a whole. That is, the press-fitting of the drive shaft is completed.

In addition, in the pre-positioning process of the above step 2, that is, the flange positioning tenon 25 is inserted into the flange positioning hole of the workpiece. It can also be accomplished by moving the motor 45 to drive the first journal clamp 7 to move on the slide rail 1 . The present invention should also protect and protect the technical solution.

In addition, in the press-fitting process of the above step 4, the press is mainly used, and the moving motor 45 drives the first journal clamp 7/second journal clamp 11 to move on the slide rail 1 as an auxiliary. Complete the pressing process together.

The specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading this specification, but only in the claims of the present invention are protected by patent law.

Claims

A drive shaft pressing machine, comprising a frame (2) having a sliding rail (1), characterized in that a first movable thruster (3) and a second movable thruster (3) and a second movable thruster (3) and a second movable thruster are slidably connected to the sliding rail (1). A thruster (4), two ends of the frame (2) are respectively provided with a first press (5) and a second press (6), the first press (5) and the second press ( 6) at least one can drive the first movable thruster (3) and the second movable thruster (4) to move toward the direction of approaching each other;

The slide rail (1) is also slidably connected with two first journal clamps (7), and the two first journal clamps (7) are respectively connected to the transmission shaft head (8) and the transmission shaft tail (9). For clamping and fixing, several second journal clamps (11) that can clamp and fix the transmission shaft tube (10) are arranged between the two first journal clamps (7). The journal clamp (7) and the several second journal clamps (11) can keep the drive shaft head (8), the drive shaft tail (9) and the drive shaft tube (10) coaxially arranged.
A drive shaft press according to claim 1, characterized in that: the first press (5) comprises an organic casing (12), and one side of the casing (12) is provided with two The thrust rod (13) and the linkage rod (14) are independent of each other, the same end of the thrust rod (13) and the linkage rod (14) are fixedly connected through the fixing plate (15), the thrust rod (13) The other end is fixedly connected or abutted with the first movable thrust machine (3)/the second movable thrust machine (4), and one side of the casing (12) is provided with a drivable link rod (14) along the A drive mechanism (16) for axial reciprocating movement;

One side of the thrust rod (13) is provided with several limit holes (17), and one side of the casing (12) is also provided with a limit cylinder (18) which can be matched with the limit holes (17). ), the telescopic end of the limiting cylinder (18) can pass through the casing (12) and cooperate with the limiting hole (17) inside the casing (12).
A drive shaft press machine according to claim 2, characterized in that: the first movable thrust machine (3)/the second movable thrust machine (4) both include a sliding rail (1) that is compatible with the sliding rail (1). A matching movable seat (23), 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), and the other side of the movable seat (23) One side is provided with a flange positioning tenon (25), and the transmission shaft head (8) and the transmission shaft tail (9) are provided with flange holes (26) which can be matched with the flange positioning tenon (25).
A drive shaft pressing machine according to claim 3, characterized in that: the first movable thrust machine (3)/the second movable thrust machine (4) further comprises a pushing cylinder (27), and the pushing The cylinder (27) is arranged on the cylinder base (28), one end of the cylinder base (28) is fixedly connected with the movable base (23), and the telescopic end of the push-out cylinder (27) passes through one end of the cylinder base (28) An abutment block (29) is matched, and the abutment block (29) is located on the first journal clamp (7); when one side of the cylinder seat (28) moves to contact the abutment block (29) When the flange positioning tenon (25) and the transmission shaft head (8)/the transmission shaft tail (9) are positioned in place.
A drive shaft press machine according to claim 4, characterized in that: the first journal clamp (7) and the second journal clamp (11) both include a pair of clamping fingers (30), a pair of which The opposite side of the clamping fingers (30) is provided with clamping notches (31); In cooperation, a swing arm (32) is provided below each of the clamping fingers (30), and a storage slot (33) is provided on the side of each of the swing arms (32) facing the other swing arm (32). ), the two storage slots (33) are both provided with the same rotating arm (34), and the two ends of the rotating arm (34) are respectively rotatably connected with the two swing arms (32);

Each of the swing arms (32) is provided with a limit block (35), two of the limit blocks (35) are respectively located at both ends of a pair of clamping fingers (30), and one of the limit blocks ( 35) is provided with a push rod (49) motor (36) on one side, and the output end of the push rod (49) motor (36) is fixedly connected to the clamp finger (30) through the limit block (35);

A connecting rod (37) is passed through one side of each of the swing arms (32), and one end of each of the connecting rods (37) is fixedly connected with the lower end surface of the limit block (35). The other end of the connecting rod (37) is fixedly connected with a sliding block (38), and each sliding block (38) is slidably connected with the sliding rail.
A drive shaft press machine according to claim 5, characterized in that: one side of the rotating arm (34) is provided with an intermediate pin (39), and the upper end of the intermediate pin (39) is provided with a support for supporting A support bracket (40) for the workpiece, a spring (41) is arranged between the support bracket (40) and the rotating arm (34), one end of the spring (41) is in contact with the upper end surface of the rotating arm (34), the The other end of the spring (41) abuts against the lower end surface of the support bracket (40).
A drive shaft pressing machine according to claim 6, characterized in that: the rack (2) is further provided with a rack (42), and the rack (42) is along the length direction of the rack (2). A drive wheel (43) is engaged with the rack (42), and a bracket (44) abutting against the side of the rack (42) is provided on one side of the drive wheel (43). 44) is provided with a moving motor (45) on one side, the output end of the moving motor (45) is fixedly connected to the drive wheel (43) through the bracket (44), and one side of the bracket (44) is provided with a connection A piece (46), the connecting piece (46) can be connected with the first journal clamp (7) or the second journal clamp (11).
A drive shaft press according to claim 7, characterized in that: the second press (6) comprises a push rod box (48) and a push rod (49), the push rod (49) passing through One end of the push rod box (48) is abutted against the second movable thrust machine (4).