Small pressing machine

Abstract

The utility model relates to the technical field of press fitting of parts, in particular to a small press. Comprising a machining table, a lifting plate is arranged on the upper side of the machining table, supporting legs are fixedly connected to the positions, close to the four corners, of the bottom of the lifting plate, the lower ends of the four supporting legs are fixedly arranged on the upper surface of the machining table, and a servo electric cylinder is fixedly connected to the upper side face of the lifting plate; the lower end of a piston rod of the servo electric cylinder penetrates through the lifting plate and is fixedly provided with a pressing head. The brackets are arranged on the lower sides of the two handles, the moving mechanisms are arranged on the lower sides of the two brackets, when a workpiece subjected to press fitting needs to be discharged, a worker pulls the holding rod in the direction away from the servo electric cylinder, the brackets drive the handles to vertically and upwards move firstly and then drive the handles to transversely move, and then the workpieces are discharged. The workpiece placed on the object placing plate can be moved out of the press-fitting space under the servo electric cylinder, the direction of pulling the holding rod does not need to be changed by a worker in the discharging process, and the physical loss of the worker is reduced.

Description

Technical Field

[0001] This utility model relates to the field of component pressing technology, specifically to a small press. Background Technology

[0002] A press is a press assembly machine used to press and assemble workpieces. Presses are used to press and assemble parts such as bearings, bushings, and pins.

[0003] Existing press fitting machines require operators to manually place pre-assembled parts into the pressing space directly below the press rod. When loading and unloading parts, operators need to extend their hands directly under the press rod. The press rod is usually controlled by a controller on the machine. If another operator accidentally presses a button on the controller while the operator's hand is under the press rod, the downward-extending press rod will crush the operator's hand, causing injury and increasing the risk of injury to the operator. Utility Model Content

[0004] The purpose of this invention is to provide a small press to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, one objective of this utility model is to provide a small press, including a processing table. A lifting plate is provided on the upper side of the processing table. Support legs are fixedly connected to the bottom of the lifting plate near its four corners. The lower ends of the four support legs are fixedly mounted on the upper surface of the processing table. A servo cylinder is fixedly connected to the upper side of the lifting plate. The lower end of the piston rod of the servo cylinder passes through the lifting plate and is fixedly mounted with a press head. A shelf is provided on the upper side of the processing table. Two positioning holes are opened at the diagonal corners of the shelf. Two positioning rods are fixedly connected to the upper surface of the processing table. When the shelf is placed on the upper surface of the processing table, the two positioning holes slide and fit into the shelf. Two positioning rods are positioned on the shelf, which is located directly below the piston rod of the servo cylinder. Two handles are symmetrically fixed to the upper surface of the shelf near both sides. The middle of the handles bends to the outside of the shelf. A bracket is provided at the bottom of the middle position of the handle. A moving mechanism is provided on the lower side of the two brackets. When the moving mechanism moves, it first moves the brackets vertically upward and then moves the brackets horizontally. When the moving mechanism moves the brackets vertically upward, the brackets move the handles and the shelf vertically upward, separating the positioning rods from the positioning holes. When the moving mechanism moves the brackets horizontally, the brackets move the handles and the shelf horizontally, moving the shelf from directly below the servo cylinder.

[0006] As a further improvement to this technical solution, the moving mechanism includes two connecting rods hinged to the lower surface of the bracket. The two connecting rods are parallel to each other and are both inclined. The lower ends of the two connecting rods are hinged to sliding plates. Each of the two sliding plates is provided with a baffle on the side away from each other. The baffle is fixedly installed on the upper surface of the processing table. Each of the two brackets is fixedly connected with a guide plate on the side away from each other.

[0007] As a further improvement to this technical solution, two blocks are fixedly connected to the lower surface of the bracket and the upper surface of the slide plate. When the two connecting rods between the bracket and the slide plate rotate in the vertical direction, the two sides of the two connecting rods contact the four blocks respectively. When the connecting rods and the blocks are in contact, the bottom of the guide plate and the top of the baffle are on the same horizontal plane.

[0008] As a further improvement to this technical solution, a vertical rod is fixedly connected to the end of the slide away from the connecting rod, and an extension rod is hinged to the upper end of the vertical rod. One end of the two extension rods extends to the outside of the processing table and is fixedly connected to a grip.

[0009] As a further improvement to this technical solution, when the grip bar moves away from the baffle, the slide plate drives the connecting rod to rotate vertically. The baffle blocks the guide plate, causing the guide plate to move vertically upward. When the positioning hole moves out from the outside of the positioning rod, the guide plate moves together with the slide plate, causing the guide plate to slide on the upper side of the baffle.

[0010] As a further improvement to this technical solution, each of the two sliding plates is fixedly connected with a horizontally arranged protruding strip on the side away from each other, and each of the two baffles is provided with a horizontal sliding groove on the side close to each other, and the two protruding strips are respectively slidably arranged in the two sliding grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This small press has a worktable with a shelf. Two handles are installed on the shelf away from directly below the servo cylinder. The worker can safely unload the workpiece by holding the two handles and removing the shelf from directly below the servo cylinder. The worker does not need to put his hands into the pressing space directly below the piston rod of the servo cylinder, which reduces the possibility of injury to the worker caused by the servo cylinder piston rod malfunction.

[0013] 2. This small press has brackets on the underside of both handles, and a moving mechanism on the underside of both brackets. When it is necessary to unload the pressed workpiece, the worker pulls the lever away from the servo cylinder, causing the bracket to first move the handle vertically upward, and then move the handle horizontally. This removes the workpiece placed on the platen from the pressing space directly below the servo cylinder. During the unloading process, the worker does not need to change the direction of pulling the lever, reducing the worker's physical exertion. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the storage board and the moving mechanism of this utility model after combination;

[0017] Figure 4 This is a schematic diagram of the structure of the storage board and the moving mechanism after separation.

[0018] Figure 5 This is one of the structural schematic diagrams of the moving mechanism of this utility model;

[0019] Figure 6 This is the second structural schematic diagram of the moving mechanism of this utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the shelf of this utility model;

[0021] Figure 8 This is a partial structural diagram of the moving mechanism of this utility model.

[0022] The meanings of the labels in the diagram are as follows:

[0023] 1. Processing table; 11. Positioning rod; 12. Baffle; 13. Slide groove;

[0024] 2. Lifting plate; 21. Support legs;

[0025] 3. Servo electric cylinder;

[0026] 4. Shelf; 41. Handle; 43. Positioning hole;

[0027] 5. Bracket;

[0028] 6. Moving mechanism; 61. Connecting rod; 62. Slide plate; 63. Protrusion; 64. Guide plate; 65. Upright pole; 66. Extension rod; 67. Handle;

[0029] 7. Stop block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] Please see Figures 1-8 As shown, one of the objectives of this embodiment is to provide a small press, including a processing table 1. A lifting plate 2 is provided on the upper side of the processing table 1, and a protective frame is fixedly provided on the upper side of the processing table 1. The lifting plate 2 is located inside the protective frame. Support legs 21 are fixedly connected to the bottom of the lifting plate 2 near the four corners. The lower ends of the four support legs 21 are fixedly provided on the upper surface of the processing table 1. A servo electric cylinder 3 is fixedly connected to the upper side of the lifting plate 2. The lower end of the piston rod of the servo electric cylinder 3 passes through the lifting plate 2 and is fixedly installed with a pressure head. A shelf 4 is provided on the upper side of the processing table 1. A clamp is installed at the center of the shelf 4. The clamp is used to clamp and fix the workpiece to be pressed. Two positioning holes 43 are opened at the diagonal corners of the four corners of the shelf 4. The upper surface of the processing table 1 is fixedly provided with a support leg 2. Two positioning rods 11 are connected, and the distance between the two positioning rods 11 is the same as the distance between the two positioning holes 43. When the workpiece 4 is placed on the upper surface of the processing table 1, the two positioning holes 43 are slidably fitted onto the two positioning rods 11 respectively. The positioning holes 43 and the positioning rods 11 cooperate to restrict the position of the workpiece 4, thereby ensuring the accuracy of the position of the workpiece 4 on the processing table 1. At this time, the workpiece 4 and the workpiece placed on the workpiece 4 are located directly below the piston rod of the servo electric cylinder 3. The piston rod of the servo electric cylinder 3 drives the pressure head to extend downward, so that the pressure head can press the workpiece downward. When pressing the workpiece, the positioning rods 11 and the positioning holes 43 cooperate to restrict the horizontal movement of the workpiece, which improves the accuracy of the pressure head pressing the workpiece. The worker can quickly press the workpiece by operating the servo electric cylinder 3.

[0033] Meanwhile, two handles 41 are symmetrically fixed to the upper surface of the shelf 4 near both sides. The middle of the handles 41 bends to the outside of the shelf 4. The two handles 41 are located on both sides of the piston rod of the servo cylinder 3. After the piston rod of the servo cylinder 3 finishes pressing the workpiece, the piston rod of the servo cylinder 3 is retracted and reset. Then, the worker holds the two handles 41 with both hands and lifts the shelf 4 and the workpiece upwards to remove the positioning hole 43 from the outside of the positioning rod 11. The worker then moves the shelf 4 and the workpiece laterally to remove the shelf 4 and the workpiece from directly under the piston rod of the servo cylinder 3, thus completing the unloading of the workpiece. Compared with the worker reaching directly under the piston rod of the servo cylinder 3 to pick up the workpiece, the worker picking up the workpiece by moving the shelf 4 is safer, avoiding the worker's hand from reaching into the pressing space directly under the piston rod of the servo cylinder 3, and reducing the possibility of injury to the worker caused by the malfunction of the piston rod of the servo cylinder 3.

[0034] When workers continuously press multiple workpieces, they need to frequently move the position of the shelf 4 vertically and horizontally. Since the shelf 4 is made of metal and is heavy, repeatedly moving the shelf 4 in multiple directions will greatly exhaust the worker's physical strength and reduce the worker's labor efficiency. To solve this problem, a bracket 5 is set at the bottom of the middle position of the handle 41. Two limiting rings are symmetrically fixedly connected to the handle 41. The two limiting rings contact the opposite sides of the bracket 5 respectively. The two limiting rings restrict the relative sliding between the bracket 5 and the handle 41. A moving mechanism 6 is set on the lower side of the two brackets 5. When the worker pulls the moving mechanism 6 in one direction, the moving mechanism 6 first drives the bracket 5 to move vertically upward and then drives the bracket 5 to move horizontally. The two brackets 5 in the movement drive the two handles 41 to move synchronously, thereby enabling the two handles 41 to drive the shelf 4 and the workpiece placed on the shelf 4 to move synchronously, so as to complete the unloading of the workpiece. The worker does not need to change the direction of the pulling force applied to the moving mechanism 6 when unloading, which reduces the worker's physical exhaustion.

[0035] The structure of the moving mechanism 6 is detailed below, referring to... Figures 3 to 6 The moving mechanism 6 includes two connecting rods 61 hinged to the lower surface of the bracket 5. The two connecting rods 61 are parallel to each other and are inclined. The lower ends of the two connecting rods 61 are hinged to the slide plates 62. The lower surface of the bracket 5 and the upper surface of the slide plates 62 are fixedly connected to two stops 7. When the two connecting rods 61 between the bracket 5 and the slide plates 62 rotate in the vertical direction, the two sides of the two connecting rods 61 contact the four stops 7 respectively. The stops 7 limit the rotation angle of the connecting rods 61, thereby limiting the maximum height of the upper end of the connecting rods 61 and the bracket 5. The two slide plates 62 are provided with baffles 12 on the side away from each other. The baffles 12 are fixedly provided on the upper surface of the processing table 1.

[0036] Meanwhile, horizontally arranged protruding strips 63 are fixedly connected to the sides of the two sliding plates 62 that are far apart from each other, and horizontal sliding grooves 13 are opened on the sides of the two baffles 12 that are close to each other. The two protruding strips 63 are slidably arranged in the two sliding grooves 13 respectively. The protruding strips 63 and the sliding grooves 13 cooperate to slide the sliding plates 62 and the baffles 12. When the sliding plate 62 moves, the protruding strips 63 will move synchronously. The protruding strips 63 can only slide along the inner wall of the horizontally opened sliding grooves 13. Therefore, the sliding plate 62 can only move laterally along the direction of the sliding grooves 13. Guide plates 64 are fixedly connected to the sides of the two brackets 5 that are far apart from each other. When the connecting rod 61 and the stop block 7 are in contact, the bottom of the guide plate 64 and the top of the baffle 12 are on the same horizontal plane. A vertical rod 65 is fixedly connected to the end of the sliding plate 62 that is far away from the connecting rod 61. An extension rod 66 is hinged to the upper end of the vertical rod 65. One end of the two extension rods 66 extends to the outside of the processing table 1 and is fixedly connected to a grip rod 67.

[0037] When the worker needs to move the placement plate 4 and the workpiece from directly below the piston rod of the servo cylinder 3, the worker pulls the handle 67 away from the servo cylinder 3. The handle 67 pulls the two uprights 65 respectively through the two extension rods 66. The moving uprights 65 drive the slide plate 62 to move horizontally along the slide groove 13. When the handle 67 moves away from the baffle 12, the baffle 12 blocks the guide plate 64 and the bracket 5 from moving laterally. When the slide plate 62 drives the lower ends of the two connecting rods 61 to move laterally, the baffle 12 blocks the guide plate 64 from moving laterally. As the lever 67 moves, the sliding plate 62 continues to move with it. The moving sliding plate 62 drives the connecting rod 61 to continue moving, while the baffle 12 blocks the guide plate 64, preventing the bracket 5 from moving with the lever 67. At this time, the connecting rod 61 rotates around the position hinged to the sliding plate 62. During this rotation, the connecting rod 61 gradually rotates vertically, pushing the bracket 5 upwards. This causes the rotating connecting rod 61 to move the bracket 5 and the guide plate 64 along the baffle 12. The vertical side of the bracket 5 is pushed upwards, causing the handle 41 and the shelf 4 to move vertically upwards. When the vertical side of the guide plate 64 and the baffle 12 disengages, that is, when the connecting rod 61 and the stop block 7 come into contact, the height of the bracket 5, guide plate 64, and shelf 4 reaches its maximum. The positioning hole 43 moves out from the outside of the positioning rod 11, and the lower surface of the guide plate 64 and the upper surface of the baffle 12 are on the same horizontal plane. Then, the moving slide plate 62 will pull the guide plate 64 to the upper side of the baffle 12 through the connecting rod 61 and the bracket 5, so that the guide plate 64 is pushed upwards. The lower surface of the guide plate 64 and the upper surface of the baffle 12 slide into contact. At this time, the guide plate 64 moves together with the slide plate 62. The guide plate 64 slides along the upper surface of the baffle 12. The moving guide plate 64 drives the handle 41 and the placement plate 4 to move laterally through the bracket 5, so that the placement plate 4 and the workpiece are moved out from directly below the servo cylinder 3, thereby realizing the rapid unloading of the workpiece. When unloading the workpiece, the worker can pull the handle 67 away from the servo cylinder 3 without changing the direction of pulling the handle 67, which reduces the physical exertion of the worker.

[0038] After the worker removes the pressed workpiece from the shelf 4, the worker fixes the new workpiece to be pressed in the fixture on the shelf 4, and then pushes the lever 67 towards the servo cylinder 3. The lever 67 pushes the two slide plates 62 to move through the two connecting rods 61 and the two uprights 65 respectively. The moving slide plates 62 drive the brackets 5 and the guide plate 64 to move through the two connecting rods 61. The guide plate 64 slides laterally along the upper surface of the baffle 12, so that the two brackets 5 drive the two handles 41 and the shelf 4 to move laterally. A blocking plate is fixedly connected to the upper surface of the processing table 1. When the side of the shelf 4 away from the lever 67 contacts the blocking plate, the blocking plate prevents the shelf 4 from moving laterally. At this time, the two positioning holes 43 on the shelf 4... The guide plate 64 moves directly above the two positioning rods 11, disengaging from the upper surface of the baffle 12. As the slide plate 62 continues to move, it drives the connecting rod 61 to rotate away from the stop block 7. During the rotation of the connecting rod 61, it drives the guide plate 64, bracket 5, handle 41, and shelf 4 to move vertically downward. As the shelf 4 moves downward, the positioning rod 11 is inserted into the positioning hole 43. The horizontal movement of the shelf 4 is restricted by the cooperation of the positioning hole 43 and the positioning rod 11. When the lower surface of the shelf 4 contacts the upper surface of the processing table 1, the worker stops pushing the grip rod 67, and the slide plate 62 stops moving. At this time, the workpiece is located directly below the piston rod of the servo electric cylinder 3, thus completing the loading of the workpiece.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A small press, comprising a processing table (1), characterized in that: A lifting plate (2) is provided on the upper side of the processing table (1). Support legs (21) are fixedly connected to the bottom of the lifting plate (2) near the four corners. The lower ends of the four support legs (21) are fixedly set on the upper surface of the processing table (1). A servo electric cylinder (3) is fixedly connected to the upper side of the lifting plate (2). The lower end of the piston rod of the servo electric cylinder (3) passes through the lifting plate (2) and is fixedly installed with a pressure head. A shelf (4) is provided on the upper side of the processing table (1). Two positioning holes (43) are opened at the diagonal corners of the shelf (4). Two positioning rods (11) are fixedly connected to the upper surface of the processing table (1). When the shelf (4) is placed on the upper surface of the processing table (1), the two positioning holes (43) are slidably sleeved on the two positioning rods (11), and the shelf (4) is located directly below the piston rod of the servo electric cylinder (3). Two handles (41) are symmetrically fixed to the upper surface of the shelf (4) near both sides. The middle position of the handle (41) is bent to the outside of the shelf (4). A bracket (5) is provided at the bottom of the middle position of the handle (41). A moving mechanism (6) is provided on the lower side of the two brackets (5). When the moving mechanism (6) moves, it first drives the bracket (5) to move vertically upward and then drives the bracket (5) to move horizontally. When the moving mechanism (6) drives the bracket (5) to move vertically upward, the bracket (5) drives the handle (41) and the shelf (4) to move vertically upward, so that the positioning rod (11) and the positioning hole (43) are separated. When the moving mechanism (6) drives the bracket (5) to move horizontally, the bracket (5) drives the handle (41) and the shelf (4) to move horizontally, so that the shelf (4) moves out from directly below the servo cylinder (3).

2. The small press according to claim 1, characterized in that: The moving mechanism (6) includes two connecting rods (61) hinged to the lower surface of the bracket (5). The two connecting rods (61) are parallel to each other and are both inclined. The lower ends of the two connecting rods (61) are hinged to a sliding plate (62). A baffle (12) is provided on the side of the two sliding plates (62) that are far apart from each other. The baffle (12) is fixedly installed on the upper surface of the processing table (1). A guide plate (64) is fixedly connected to the side of the two brackets (5) that are far apart from each other.

3. The small press according to claim 1, characterized in that: The lower surface of the bracket (5) and the upper surface of the slide plate (62) are both fixedly connected to two blocks (7). When the two connecting rods (61) between the bracket (5) and the slide plate (62) rotate in the vertical direction, the two sides of the two connecting rods (61) contact the four blocks (7) respectively. When the connecting rods (61) and the blocks (7) are in contact, the bottom of the guide plate (64) and the top of the baffle (12) are on the same horizontal plane.

4. The small press according to claim 2, characterized in that: The end of the slide plate (62) away from the connecting rod (61) is fixedly connected to a vertical rod (65), and the upper end of the vertical rod (65) is hinged to an extension rod (66). One end of the two extension rods (66) extends to the outside of the processing table (1) and is fixedly connected to a grip (67).

5. The small press according to claim 4, characterized in that: When the grip (67) moves away from the baffle (12), the slide plate (62) drives the connecting rod (61) to rotate vertically. The baffle (12) blocks the guide plate (64), causing the guide plate (64) to move vertically upward. After the positioning hole (43) moves out from the outside of the positioning rod (11), the guide plate (64) moves together with the slide plate (62), causing the guide plate (64) to slide on the upper side of the baffle (12).

6. The small press according to claim 2, characterized in that: The two sliding plates (62) are fixedly connected with transversely arranged protrusions (63) on the side away from each other, and the two baffles (12) are provided with transverse sliding grooves (13) on the side close to each other. The two protrusions (63) are respectively slidably arranged in the two sliding grooves (13).

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