A multi-station automatic pressing device

Abstract

A multi-station automatic pressing device includes a base, on which a turntable is rotatably supported. A fixed plate, fixedly connected to the base, is located at the center of the turntable. Eight workpiece support mechanisms are evenly distributed in the circumferential direction on the turntable. The turntable is also divided into eight stations with equal central angles in the circumferential direction, which are sequentially labeled as station A, station B... station H. A first feeding mechanism, a second feeding mechanism, a pressing mechanism, and a unloading mechanism are arranged around the turntable on the base. The first feeding mechanism matches station A, the second feeding mechanism matches station C, the pressing mechanism matches station E, and the unloading mechanism matches station G. The base also has a first straight material channel matching station A and a second straight material channel matching station E. The inlet end of the first straight material channel is connected to the outlet of the first vibrating feeding plate, and the inlet end of the second straight material channel is connected to the outlet of the second vibrating feeding plate.

Description

Technical Field

[0001] This invention relates to the field of automated assembly, and in particular to a multi-station automatic pressing device. Background Technology

[0002] In industrial production processes, it is often necessary to assemble two different workpieces into a single structure with specific orientations and postures. For example... Figure 1 The two workpieces (first workpiece 43 and second workpiece 44) have two symmetrically distributed square holes on the plate-shaped first workpiece 43 and a connecting post at the bottom of the second workpiece 44 that matches the square holes. The connecting post needs to be inserted into the square holes to achieve the connection between the two.

[0003] The traditional method involves operators using pressing equipment (such as manual pressing machines). This method is time-consuming and labor-intensive, requiring a certain amount of manual labor and also has problems such as low work efficiency and difficulty in guaranteeing pressing quality.

[0004] To address the aforementioned issues, there are now some devices on the market that can automatically load, press, and unload two different workpieces. These devices are designed with a turntable that rotates in a step-by-step manner at a certain angle. The turntable is equipped with multiple platforms for carrying workpieces, and multiple mechanisms are set around the turntable, such as a loading mechanism, a pressing mechanism, an unloading mechanism, and a detection mechanism between them. The first loading mechanism places the first workpiece on the platform, and the platform rotates to the second loading mechanism, where the second workpiece is loaded. Then, the platform moves them to the pressing mechanism to complete the pressing operation. Finally, the unloading mechanism removes the assembled workpiece, thus completing the automated assembly operation of two different workpieces.

[0005] However, traditional devices of this type still have certain problems during operation: the material platform is directly fixed on the turntable, which means that when the pressing mechanism performs the pressing operation, the pressure of the pressing cylinder on the workpiece will be directly transmitted to the turntable. Since the pressing position is located at the edge of the turntable, while the rotation support position of the turntable is close to the center of the turntable, the turntable will bear the overturning moment during each pressing operation, and there is a tendency for one side to flip downward and the other side to flip upward.

[0006] On the one hand, prolonged exposure to such eccentric pressure can cause problems with the rotation support mechanism (bearings) of the turntable. On the other hand, if the turntable flips under stress, it may affect the feeding or gripping accuracy of other mechanisms (feeding and unloading mechanisms). If there is an error in feeding, defective products may be pressed out. If there is an error in gripping, the pressed workpiece may not be able to be removed, requiring manual intervention and affecting the production schedule.

[0007] Therefore, a method or apparatus is needed to solve the above problems. Summary of the Invention

[0008] The present invention addresses the aforementioned shortcomings of the prior art by proposing a device with a simple structure, ingenious design, and reasonable layout, capable of quickly and efficiently assembling two different workpieces, while ensuring that the turntable is not subjected to force during the pressing operation, thus guaranteeing long-term high-precision pressing operation.

[0009] The technical solution of the present invention is: a multi-station automatic pressing device, including a base 1, a turntable 2 rotatably supported on the base 1, a fixed plate fixedly connected to the base 1 at the center of the turntable 2, eight workpiece support mechanisms evenly distributed in the circumferential direction on the turntable 2, and the turntable 2 is divided into eight stations with equal central angles in the circumferential direction, which are sequentially marked as position A, position B... position H;

[0010] The base 1 is provided with a first feeding mechanism 3, a second feeding mechanism 4, a pressing mechanism 5 and a discharging mechanism 6 located around the turntable 2. The first feeding mechanism 3 is matched with position A, the second feeding mechanism 4 is matched with position C, the pressing mechanism 5 is matched with position E, and the discharging mechanism 6 is matched with position G. The base 1 is also provided with a first straight material channel 7 matched with position A and a second straight material channel 8 matched with position E. The inlet end of the first straight material channel 7 is connected to the outlet of the first vibrating feeding plate 9, and the inlet end of the second straight material channel 8 is connected to the outlet of the second vibrating feeding plate 10.

[0011] The bottom end of the turntable 2 is connected to the output end of the cam divider 11, while the input end of the cam divider 11 is connected to the motor 13 located below the base 1 via the belt pulley transmission pair 12.

[0012] Its features are:

[0013] The first feeding mechanism 3 includes a bracket 14 fixedly supported on the base 1. A pair of radial slide rails 15 distributed radially along the turntable 2 are provided on the bracket 14. A radial carriage 16 is slidably connected to the radial slide rails 15. The radial carriage 16 is driven by a radial cylinder 17 provided on the bracket 14. A Z-axis cylinder 18 is provided on the upper part of the radial carriage 16. The working end of the Z-axis cylinder 18 is connected to the top end of the Z-axis carriage 19. The Z-axis carriage 19 is slidably connected to the radial carriage 16 through the Z-axis slide rail. A pair of pneumatic grippers 20 are provided on the Z-axis carriage 19.

[0014] The structures of the second feeding mechanism 4 and the unloading mechanism 6 are the same as those of the first feeding mechanism 3;

[0015] The pressing mechanism 5 includes a pressing bracket 21 fixedly supported on the base 1. The top of the pressing bracket 21 is provided with two symmetrically distributed upper pressing cylinders 22. The working ends of the upper pressing cylinders 22 are connected to the upper fixture 23. The upper fixture 23 is located above the turntable 2. The pressing mechanism 5 also includes a lower pressing cylinder 24 located below the turntable 2. The working end of the lower pressing cylinder 24 is connected to the center of the connecting plate 25. The two ends of the top surface of the connecting plate 25 are provided with pressing guide posts 26. The pressing guide posts 26 are movably connected in the pressing guide sleeve 27, while the pressing guide sleeve 27 is fixedly connected to the bottom of the pressing bracket 21.

[0016] The workpiece support mechanism includes a support plate 28, with support guide posts 29 at both ends of the bottom surface of the support plate 28. The support guide posts 29 are movably connected inside the support guide sleeve 30, while the support guide sleeve 30 is fixedly connected to the turntable 2. The bottom end of the support guide post 29 is provided with a limiting edge 31. A first spring 32 is also sleeved outside the support guide post 29, and the first spring 32 is located between the support guide sleeve 30 and the limiting edge 31.

[0017] The top ends of the two press-fit guide pillars 26 correspond one-to-one with the bottom ends of the two bracket guide pillars 29.

[0018] The fixed plate is equipped with four detection mechanisms, wherein the first detection mechanism 33 is matched with position B, the second detection mechanism 34 is matched with position D, the third detection mechanism 35 is matched with position E, and the fourth detection mechanism 36 is matched with position H.

[0019] The first detection mechanism 33 includes a detection base plate 45 directly connected to the fixed plate, and two sensors 37 are symmetrically arranged on the detection base plate 45. The structures of the second detection mechanism 34, the third detection mechanism 35 and the fourth detection mechanism 36 are the same as those of the first detection mechanism 33.

[0020] The base 1 is also provided with a positioning cylinder 38, and the working end of the positioning cylinder 38 is provided with a positioning pin. The turntable 2 is provided with eight pin holes 39 evenly distributed in the circumferential direction, and the positioning pin and the pin holes 39 are matched with each other.

[0021] The working shaft 40 of the lower press cylinder 24 is movably connected in the connecting plate guide sleeve 41. The connecting plate guide sleeve 41 is fixedly set at the center of the connecting plate 25. The bottom end of the working shaft 40 is provided with a limiting edge 31. A second spring 42 is also sleeved on the outside of the working shaft 40. The second spring 42 is located between the connecting plate 25 and the limiting edge 31.

[0022] The surface of the pallet 28 is provided with positioning protrusions that match the workpiece.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] This multi-station automatic pressing device features a simple structure, ingenious design, and reasonable layout. Addressing the various problems of traditional manual pressing methods, it employs a unique structure. A turntable drives the cyclical movement of the workpieces, with a feeding mechanism, a pressing mechanism, and a unloading mechanism arranged around the turntable. Two feeding mechanisms enable step-by-step feeding; two pre-assembled workpieces are pressed together at the pressing mechanism and finally removed by the unloading mechanism. Simultaneously, after each operation, a detection mechanism checks the workpiece's status (whether it is in place, whether its posture is correct, and whether the previous operation has been completed). It enables automated assembly and pressing operations between multiple workpieces without manual intervention, improving work efficiency and reducing labor costs while ensuring pressing quality.

[0025] Meanwhile, it improves the workpiece support mechanism and pressing mechanism. First, the workpiece support mechanism can move upward under the drive of the cylinder set at the bottom of the pressing mechanism, while the upper fixture for pressing moves downward under the drive of the cylinder set at the top of the pressing mechanism. This structure allows the lower pressing cylinder to provide a counterforce for the pressing work. The turntable will not be subjected to any overturning moment during the whole process, so the turntable will not be overturned in the overturning direction, thus ensuring the accuracy of feeding, assembly and unloading, and can also effectively extend the overall service life of the device.

[0026] Furthermore, its manufacturing process is simple and its production cost is low. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field, with a very broad market prospect. Attached Figure Description

[0027] Figure 1 These are schematic diagrams of the structures of the two workpieces targeted in the embodiments of the present invention.

[0028] Figure 2 This is a top view of an embodiment of the present invention.

[0029] Figure 3 This is the front view of an embodiment of the present invention.

[0030] Figure 4 This is a three-dimensional structural schematic diagram of an embodiment of the present invention.

[0031] Figure 5 This is a three-dimensional structural diagram of the first feeding mechanism in an embodiment of the present invention.

[0032] Figure 6 This is a three-dimensional structural diagram of the second feeding mechanism in an embodiment of the present invention.

[0033] Figure 7This is a three-dimensional structural diagram of the pressing mechanism in an embodiment of the present invention.

[0034] Figure 8 This is a three-dimensional structural diagram of an embodiment of the present invention (with some parts of the mechanism removed). Detailed Implementation

[0035] Specific embodiments of the present invention will now be described in conjunction with the accompanying drawings. Figures 1 to 8 As shown: A multi-station automatic pressing device includes a base 1, on which a turntable 2 is rotatably supported. A fixed plate fixedly connected to the base 1 is provided at the center of the turntable 2. The turntable 2 is provided with eight workpiece support mechanisms evenly distributed in the circumferential direction. At the same time, the turntable 2 is divided into eight stations with equal central angles in the circumferential direction, and they are sequentially marked as position A, position B... position H.

[0036] The base 1 is provided with a first feeding mechanism 3, a second feeding mechanism 4, a pressing mechanism 5 and a discharging mechanism 6 located around the turntable 2. The first feeding mechanism 3 is matched with position A, the second feeding mechanism 4 is matched with position C, the pressing mechanism 5 is matched with position E, and the discharging mechanism 6 is matched with position G. The base 1 is also provided with a first straight material channel 7 matched with position A and a second straight material channel 8 matched with position E. The inlet end of the first straight material channel 7 is connected to the outlet of the first vibrating feeding plate 9, and the inlet end of the second straight material channel 8 is connected to the outlet of the second vibrating feeding plate 10.

[0037] The bottom end of the turntable 2 is connected to the output end of the cam divider 11, while the input end of the cam divider 11 is connected to the motor 13 located below the base 1 via the belt pulley transmission pair 12.

[0038] The first feeding mechanism 3 includes a bracket 14 fixedly supported on the base 1. A pair of radial slide rails 15 distributed radially along the turntable 2 are provided on the bracket 14. A radial carriage 16 is slidably connected to the radial slide rails 15. The radial carriage 16 is driven by a radial cylinder 17 provided on the bracket 14. A Z-axis cylinder 18 is provided on the upper part of the radial carriage 16. The working end of the Z-axis cylinder 18 is connected to the top end of the Z-axis carriage 19. The Z-axis carriage 19 is slidably connected to the radial carriage 16 through the Z-axis slide rail. A pair of pneumatic grippers 20 are provided on the Z-axis carriage 19.

[0039] The structures of the second feeding mechanism 4 and the unloading mechanism 6 are the same as those of the first feeding mechanism 3;

[0040] The pressing mechanism 5 includes a pressing bracket 21 fixedly supported on the base 1. The top of the pressing bracket 21 is provided with two symmetrically distributed upper pressing cylinders 22. The working ends of the upper pressing cylinders 22 are connected to the upper fixture 23. The upper fixture 23 is located above the turntable 2. The pressing mechanism 5 also includes a lower pressing cylinder 24 located below the turntable 2. The working end of the lower pressing cylinder 24 is connected to the center of the connecting plate 25. The two ends of the top surface of the connecting plate 25 are provided with pressing guide posts 26. The pressing guide posts 26 are movably connected in the pressing guide sleeve 27, while the pressing guide sleeve 27 is fixedly connected to the bottom of the pressing bracket 21.

[0041] The workpiece support mechanism includes a support plate 28, with support guide posts 29 at both ends of the bottom surface of the support plate 28. The support guide posts 29 are movably connected inside the support guide sleeve 30, while the support guide sleeve 30 is fixedly connected to the turntable 2. The bottom end of the support guide post 29 is provided with a limiting edge 31. A first spring 32 is also sleeved outside the support guide post 29, and the first spring 32 is located between the support guide sleeve 30 and the limiting edge 31.

[0042] The top ends of the two press-fit guide pillars 26 correspond one-to-one with the bottom ends of the two bracket guide pillars 29.

[0043] The fixed plate is equipped with four detection mechanisms, wherein the first detection mechanism 33 is matched with position B, the second detection mechanism 34 is matched with position D, the third detection mechanism 35 is matched with position E, and the fourth detection mechanism 36 is matched with position H.

[0044] The first detection mechanism 33 includes a detection base plate 45 directly connected to the fixed plate, and two sensors 37 are symmetrically arranged on the detection base plate 45. The structures of the second detection mechanism 34, the third detection mechanism 35 and the fourth detection mechanism 36 are the same as those of the first detection mechanism 33.

[0045] The base 1 is also provided with a positioning cylinder 38, and the working end of the positioning cylinder 38 is provided with a positioning pin. The turntable 2 is provided with eight pin holes 39 evenly distributed in the circumferential direction, and the positioning pin and the pin holes 39 are matched with each other.

[0046] The working shaft 40 of the lower press cylinder 24 is movably connected in the connecting plate guide sleeve 41. The connecting plate guide sleeve 41 is fixedly set at the center of the connecting plate 25. The bottom end of the working shaft 40 is provided with a limiting edge 31. A second spring 42 is also sleeved on the outside of the working shaft 40. The second spring 42 is located between the connecting plate 25 and the limiting edge 31.

[0047] The surface of the pallet 28 is provided with positioning protrusions that match the workpiece.

[0048] The working process of the multi-station automatic pressing device in this embodiment of the invention is as follows: First, multiple first workpieces 43 are placed into the first vibrating feeding plate 9, and multiple second workpieces 44 are placed into the second vibrating feeding plate 10. The two vibrating feeding plates are started, and the first vibrating feeding plate 9 drives multiple first workpieces 43 to enter the first straight material channel 7 one by one. These first workpieces 43 move in the first straight material channel 7 (under the push of the workpieces behind) until the first first workpiece 43 moves to the end of the first straight material channel 7, which is the material picking position. Similarly, multiple second workpieces 44 enter the second straight material channel 8, and the first second workpiece 44 also moves to the material picking position of the second straight material channel 8.

[0049] When motor 13 operates, it outputs torque to cam divider 11 via belt pulley transmission pair 12. Cam divider 11 then drives turntable 2 to rotate in a stepwise manner at certain time intervals, rotating one-eighth of a circumference (i.e., 45°) each time, to ensure that each workpiece support mechanism can move to the next station and stop each time. In order for the smooth operation of loading, pressing, and unloading, every time turntable 2 rotates and stops, positioning cylinder 38 drives positioning pin to extend and insert into pin hole 39 on turntable 2 to position turntable 2. After all mechanisms have completed one action, positioning cylinder 38 drives positioning pin to retract, turntable 2 regains its degree of freedom, and can rotate again.

[0050] The first feeding mechanism 3 operates to take out a first workpiece 43 from the picking position on the first straight material channel 7 and place it on the workpiece bracket mechanism at position A. Then the turntable 2 rotates, the first first workpiece 43 is transported to position B, and the second first workpiece 43 is placed on the workpiece bracket mechanism at position A.

[0051] The first detection mechanism 33 located at position B checks whether there is a first workpiece 43 at the current position. If there is, no error is reported and the device continues to work.

[0052] Turntable 2 rotates again, and the first workpiece 43 arrives at position C. The second feeding mechanism 4 located here works to take the first workpiece 44 out from the picking position of the second straight material channel 8 and place it on the first workpiece 43, thus achieving pre-assembly.

[0053] After the second feeding mechanism 4 completes one feeding action, the control system controls the turntable 2 to rotate 45° again, and the pre-assembled first workpiece 43 and second workpiece 44 move to position D. The second detection mechanism 34 detects whether the second workpiece 44 is installed in place. If it is, no error is reported and the device continues to work.

[0054] Turntable 2 continues to rotate, and the pre-assembled first workpiece 43 and second workpiece 44 move to position E. The pressing mechanism 5 located at position E is activated to press the two into a single structure. After pressing is completed, the third detection mechanism 35 located at position E checks whether the two are in a fully pressed state. If the detection is qualified, no error is reported, and the device continues to work.

[0055] Turntable 2 rotates again, and the two assembled workpieces move to position F, where no operation is performed.

[0056] Turntable 2 rotates again, and the two assembled workpieces move to position G. The unloading mechanism 6 at position G is activated to remove the workpieces from the workpiece bracket mechanism and place them into the collection container set below the unloading mechanism 6.

[0057] Turntable 2 rotates again, and the idle workpiece bracket mechanism moves to position H. The fourth detection mechanism 36 located here detects whether there is a workpiece on the workpiece bracket mechanism. If there is, an error is reported; otherwise, normal operation is performed.

[0058] Turntable 2 rotates again, the idle workpiece bracket mechanism returns to position A, and the next cycle begins again. This process is repeated to achieve automated pressing operation of the first workpiece 43 and the second workpiece 44.

[0059] It should be noted that at the beginning of the operation, a first workpiece 43 can be placed directly on the workpiece brackets at positions B and C by manual operation. This ensures that the second feeding mechanism 4 can still place a second workpiece 44 on the first workpiece 43 and achieve pre-assembly before the first workpiece 43 moves to position C in the automatic feeding state of this device.

[0060] The detection mechanisms at different workstations have different detection purposes. As mentioned above, the first detection mechanism 33 is used to detect whether the first workpiece 43 is in place, and the height of the two sensors 37 therein matches the height of the first workpiece 43. The second detection mechanism 34 is used to detect whether the two workpieces have completed pre-assembly, and the height of the two sensors 37 therein matches the height of the second workpiece 44 in the pre-assembly state. The third detection mechanism 35 is used to detect whether the second workpiece 44 is pressed into place, and the height of the two sensors 37 therein matches the height of the second workpiece 44 in the fully pressed-in state. The fourth detection mechanism 36 is used to detect whether the workpiece bracket mechanism is idle, and the height of the two sensors 37 therein matches the height of the first workpiece 43 (if the assembled workpiece is not properly removed, the sensors 37 will detect the first workpiece 43).

[0061] The working process of the first feeding mechanism 3 is as follows: After the control system sends a signal, it controls the radial cylinder 17 to work, which drives the radial slide 16 to move. The radial slide 16 drives the pneumatic gripper 20 to move to the material picking position of the first straight material channel 5 (at this time, the radial cylinder 17 is exactly at the extreme position of one end). The Z-axis cylinder 18 drives the Z-axis slide 19 to move down. When the Z-axis cylinder 18 moves to the extreme position, the pneumatic gripper 20 is activated to pick up the first workpiece 43. Then the above actions are reversed. The pneumatic gripper 20 drives the first workpiece 43 to move above the workpiece support mechanism at position A and places it on the support plate 28. The positioning protrusion on the surface of the support plate 28 can position the first workpiece 43. Thus, the transfer of the workpiece from the first straight material channel 5 to the support plate 28 is completed.

[0062] The working process of the second feeding mechanism 4 is similar to that described above. The difference is that the gripper in the first feeding mechanism 3 matches the shape of the first workpiece 43, while the gripper in the second feeding mechanism 4 matches the second workpiece 44, so as to ensure that they can clamp the two types of workpieces respectively.

[0063] The working process of the unloading mechanism 6 is similar to that described above, except that the direction of the movement of the workpiece is opposite. In actual operation, the gripper in the unloading mechanism 6 can clamp the second workpiece 44.

[0064] The working process of the pressing mechanism 5 is as follows: After receiving the signal from the control system, the upper pressing cylinder 22 of the pressing mechanism 5 is activated, driving the two upper fixtures 23 to move downward. At the same time, the lower pressing cylinder 24 is also retracted (the lower pressing cylinder 24 is initially in the extended state), pulling the connecting plate 25 upward. The upward movement of the connecting plate 25 will drive the two pressing guide pillars 26 upward. The two pressing guide pillars 26 are respectively pressed against the bottom end face of the two bracket guide pillars 29, and then the bracket guide pillars 29 drive the pallet 28 (and the two pre-assembled workpieces supported on it) to move upward. Under the action of the pallet 28 applying upward force and the upper fixture 23 applying downward force, the two workpieces are pressed into a single structure, completing the pressing operation.

[0065] After the pressing action is completed, the upper fixture 23 moves upward and the support plate 28 moves downward. Under the action of the first spring 32, the support plate 28 returns to the initial height. If the two sensors 37 in the third detection mechanism 35 can still detect the second workpiece 44, it means that the second workpiece 44 has not been completely pressed into the first workpiece 43.

[0066] The downward pressing action of the upper pressing cylinder 22 is not provided by the turntable 2, but by the connecting plate 25 and the pressing guide post 26 of the lower pressing cylinder 24. This structure can provide sufficient pressing force to ensure the pressing effect, and avoid various problems caused by the turntable 2 being directly subjected to force.

[0067] Meanwhile, in order to protect the workpiece, the working shaft 40 on the side of the lower pressing cylinder 24 is not directly fixed to the connecting plate 25, but is connected through a floating mechanism. When the lower pressing cylinder 24 is retracted, the connecting plate 25 moves upward under the push of the second spring 42 below it. When pressing is achieved, the second spring 42 will also deform to a certain extent, thereby preventing the workpiece from being damaged due to excessive pressure. This is a flexible pressing structure.

Claims

1. A multi-station automatic pressing device, comprising a base (1), on which a turntable (2) is rotatably supported, and a fixed plate fixedly connected to the base (1) is provided at the center of the turntable (2), and eight workpiece support mechanisms evenly distributed in the circumferential direction are provided on the turntable (2), and the turntable (2) is divided into eight stations with equal central angles in the circumferential direction, and these stations are sequentially marked as position A, position B... position H; The base (1) is provided with a first feeding mechanism (3), a second feeding mechanism (4), a pressing mechanism (5) and a discharging mechanism (6) located around the turntable (2). The first feeding mechanism (3) is matched with position A, the second feeding mechanism (4) is matched with position C, the pressing mechanism (5) is matched with position E, and the discharging mechanism (6) is matched with position G. The base (1) is also provided with a first straight material channel (7) matched with position A and a second straight material channel (8) matched with position E. The inlet end of the first straight material channel (7) is connected to the outlet of the first vibrating feeding plate (9), and the inlet end of the second straight material channel (8) is connected to the outlet of the second vibrating feeding plate (10). The bottom end of the turntable (2) is connected to the output end of the cam divider (11), while the input end of the cam divider (11) is connected to the motor (13) located below the base (1) via the belt pulley transmission pair (12). Its features are: The first feeding mechanism (3) includes a bracket (14) fixedly supported on the base (1). A pair of radial slide rails (15) distributed radially along the turntable (2) are provided on the bracket (14). A radial carriage (16) is slidably connected on the radial slide rails (15). The radial carriage (16) is driven by a radial cylinder (17) provided on the bracket (14). A Z-direction cylinder (18) is provided on the upper part of the radial carriage (16). The working end of the Z-direction cylinder (18) is connected to the top of the Z-direction carriage (19). The Z-direction carriage (19) is slidably connected to the radial carriage (16) through the Z-direction slide rail. A pair of pneumatic grippers (20) are provided on the Z-direction carriage (19). The structures of the second feeding mechanism (4) and the unloading mechanism (6) are the same as those of the first feeding mechanism (3); The pressing mechanism (5) includes a pressing bracket (21) fixedly supported on the base (1). The top of the pressing bracket (21) is provided with two symmetrically distributed upper pressing cylinders (22). The working end of the upper pressing cylinder (22) is connected to the upper fixture (23). The upper fixture (23) is located above the turntable (2). The pressing mechanism (5) also includes a lower pressing cylinder (24) located below the turntable (2). The working end of the lower pressing cylinder (24) is connected to the center of the connecting plate (25). The two ends of the top surface of the connecting plate (25) are provided with pressing guide posts (26). The pressing guide posts (26) are movably connected in the pressing guide sleeve (27), while the pressing guide sleeve (27) is fixedly connected to the bottom of the pressing bracket (21). The workpiece support mechanism includes a support plate (28), and support guide posts (29) are provided at both ends of the bottom surface of the support plate (28). The support guide posts (29) are movably connected inside the support guide sleeve (30), while the support guide sleeve (30) is fixedly connected to the turntable (2). The bottom end of the support guide post (29) is provided with a limiting edge (31). A first spring (32) is also sleeved outside the support guide post (29). The first spring (32) is located between the support guide sleeve (30) and the limiting edge (31). The top ends of the two press-fit guide pillars (26) correspond one-to-one with the bottom ends of the two bracket guide pillars (29).

2. The multi-station automatic pressing device according to claim 1, characterized in that: The fixed plate is equipped with four detection mechanisms, wherein the first detection mechanism (33) is matched with position B, the second detection mechanism (34) is matched with position D, the third detection mechanism (35) is matched with position E, and the fourth detection mechanism (36) is matched with position H.

3. The multi-station automatic pressing device according to claim 2, characterized in that: The first detection mechanism (33) includes a detection base plate (45) directly connected to the fixed plate, and two sensors (37) are symmetrically arranged on the detection base plate (45). The structures of the second detection mechanism (34), the third detection mechanism (35) and the fourth detection mechanism (36) are the same as those of the first detection mechanism (33).

4. The multi-station automatic pressing device according to claim 1, characterized in that: The base (1) is also provided with a positioning cylinder (38), and the working end of the positioning cylinder (38) is provided with a positioning pin. The turntable (2) is provided with 8 pin holes (39) evenly distributed in the circumferential direction. The positioning pin and the pin holes (39) match each other.

5. The multi-station automatic pressing device according to claim 1, characterized in that: The working shaft (40) of the lower press cylinder (24) is movably connected in the connecting plate guide sleeve (41). The connecting plate guide sleeve (41) is fixedly set at the center of the connecting plate (25). The bottom end of the working shaft (40) is provided with a limiting edge (31). A second spring (42) is also sleeved outside the working shaft (40). The second spring (42) is located between the connecting plate (25) and the limiting edge (31).

6. The multi-station automatic pressing device according to claim 1, characterized in that: The surface of the pallet (28) is provided with positioning protrusions that match the workpiece.

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