Pressing device applied to shell component

Abstract

The utility model discloses a hold-down device applied to a shell component. The hold-down device comprises a hold-down main body, a rotary hold-down cylinder mechanism matched with a first clamping surface of a to-be-clamped piece, and a lower hold-down mechanism matched with a second clamping surface of the to-be-clamped piece, the first clamping face and the second clamping face are not coplanar, and the pressing body is further provided with a supporting plate abutting against the surface of a to-be-clamped piece and a positioning pin facilitating positioning of the to-be-clamped piece. The lower pressing mechanism comprises a first air cylinder, a first air cylinder installation base and a connecting rod mechanism, the connecting rod mechanism loosens and clamps the second clamping face under the action of the first air cylinder, and a space for the first air cylinder and the connecting rod mechanism to move is formed in the first air cylinder installation base. The space for the first air cylinder and the connecting rod mechanism to move is formed in the first air cylinder mounting seat of the lower pressing mechanism, so that the lower pressing mechanism can integrally clamp and carry a thin shell workpiece in a narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling, and particularly relates to a pressing device applied to a shell component. Background Art

[0002] In the assembly field, in order to adapt to thin shells such as gearbox shells, traditional fixtures on the assembly line often use the method of upper and lower pressing or left and right pressing to position workpieces for movement. When there is interference between the installation space of the fixture and the thin-shell workpiece, the traditional method is to reduce the size of the fixture or use a special-shaped outer shape to meet the use. However, when the use space is narrow and the installation space is limited, the above solutions cannot meet the clamping and handling of thin-shell workpieces.

[0003] Therefore, it is urgent to propose a new solution to solve the above problems. Summary of the Invention

[0004] The utility model provides a pressing device applied to a shell component, which can solve the problem that when the use space is narrow and the installation space is limited, the existing fixture cannot meet the clamping and handling of thin-shell workpieces.

[0005] The utility model provides a pressing device applied to a shell component, including a pressing main body, a rotary pressing cylinder mechanism cooperating with the first clamping surface of the workpiece to be clamped, and a lower pressing mechanism cooperating with the second clamping surface of the workpiece to be clamped;

[0006] The first clamping surface and the second clamping surface are not coplanar, and a support plate abutted against the surface of the workpiece to be clamped and a positioning pin for facilitating the positioning of the workpiece to be clamped are further arranged on the pressing main body;

[0007] The lower pressing mechanism includes a first cylinder, a first cylinder mounting seat and a link mechanism. The link mechanism realizes the loosening and clamping actions on the second clamping surface under the action of the first cylinder, and a space for the first cylinder and the link mechanism to move is arranged in the first cylinder mounting seat.

[0008] Further, the link mechanism includes a first pressing rod, a first link and a pushing component;

[0009] The first cylinder mounting seat and the first cylinder are fixedly arranged on the pressing main body. One end of the pushing component is threadedly connected with the first piston rod of the first cylinder, the other end of the pushing component is hinged with the first pressing rod, a through hole for the pushing component to slide is arranged in the first cylinder mounting seat, two ends of the first link are respectively hinged to the end of the first cylinder mounting seat far from the first cylinder and the middle of the first pressing rod, and a pressing part contacting the workpiece to be clamped is arranged at the free end of the first pressing rod.

[0010] Further, the pressing main body includes a vertical support plate and a horizontal support plate which are fixedly arranged perpendicular to each other. The lower pressing mechanism is arranged on the vertical support plate, and two of the support plates are respectively arranged on both sides of the vertical support plate. The rotary pressing cylinder mechanism is arranged on the horizontal support plate.

[0011] Further, on the upper surface of the first cylinder mounting seat, a plurality of L-shaped reinforcing plates are fixedly arranged through a plurality of bolts, and the other ends of the reinforcing plates are fixedly arranged on the vertical support plate through bolts.

[0012] Further, the rotary pressing cylinder mechanism includes a second cylinder mounting seat, a second cylinder, a second connecting rod and a second pressing rod. The second cylinder mounting seat is fixedly arranged on the horizontal support plate through bolts. The second cylinder is fixedly arranged on the second cylinder mounting seat. The end of the second piston rod of the second cylinder is hinged to one end of the second connecting rod. The other end of the second connecting rod is fixedly provided with a second pressing rod, and a detachable pressing head is arranged at the end of the second pressing rod.

[0013] Further, the pushing component is a connecting shaft clamped in the through hole. One end of the connecting shaft is threadedly connected to the first piston rod, and the other end of the connecting shaft is hinged to the end of the first pressing rod.

[0014] Further, the first cylinder mounting seat further includes a bushing detachably arranged on the inner wall of the through hole, and a fastening bolt for limiting and fixing the bushing is arranged at the end of the first cylinder mounting seat away from the first cylinder.

[0015] Further, in the pressing state, the included angle α between the connecting shaft and the first pressing rod is 90°; in the fully extended state, the included angle α between the connecting shaft and the first pressing rod is 80 - 85°.

[0016] Further, the connecting shaft and the first pressing rod are hinged through a first flat-mouth pin shaft, and a first spacer sleeve for facilitating the replacement of the first flat-mouth pin shaft is sleeved outside the first flat-mouth pin shaft. The first pressing rod and the first connecting rod are hinged through a second flat-mouth pin shaft, and a second spacer sleeve for facilitating the replacement of the second flat-mouth pin shaft is sleeved outside the second flat-mouth pin shaft. The first connecting rod and the pressing main body are hinged through a third flat-mouth pin shaft, and a third spacer sleeve for facilitating the replacement of the third flat-mouth pin shaft is sleeved outside the third flat-mouth pin shaft.

[0017] Further, the pressing part includes a pressing plate and a pressing block. The pressing plate is fixedly arranged at the end of the first pressing rod, and the pressing block is detachably arranged on the pressing plate.

[0018] Compared with the prior art, the utility model is provided with a rotary pressing cylinder mechanism that cooperates with the first clamping surface of the workpiece to be clamped, and a lower pressing mechanism that cooperates with the second clamping surface of the workpiece to be clamped, and the first clamping surface and the second clamping surface are not coplanar. In addition, a support plate that abuts against the surface of the workpiece to be clamped and a positioning pin that facilitates the positioning of the workpiece to be clamped are provided. By providing a space in the first cylinder mounting seat of the lower pressing mechanism for the activities of the first cylinder and the linkage mechanism, the overall lower pressing mechanism can meet the clamping and handling work of thin shell workpieces in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional schematic diagram of the structural pressing mechanism and the workpiece to be clamped of the utility model;

[0020] Figure 2 is another three-dimensional schematic diagram of the structural pressing mechanism and the workpiece to be clamped of the utility model

[0021] Figure 3 is a three-dimensional schematic diagram of the structural pressing mechanism of the utility model;

[0022] Figure 4 is another three-dimensional schematic diagram of the structural pressing mechanism of the utility model;

[0023] Figure 5 is a longitudinal sectional schematic diagram of the lower pressing mechanism of the utility model in a fully extended state;

[0024] Figure 6 is a three-dimensional structural schematic diagram of the lower pressing mechanism of the utility model in a relaxed state;

[0025] Reference numerals: 1, pressing main body; 11, vertical support plate; 12, horizontal support plate; 13, support plate; 14, positioning pin; 15, reinforcing elbow plate; 2, rotary pressing cylinder mechanism; 21, second cylinder mounting seat; 22, second cylinder; 221, second piston rod; 23, second connecting rod; 24, second pressing rod; 241, pressing head; 3, lower pressing mechanism; 31, first cylinder, 311, first piston rod; 32, first cylinder mounting seat; 321, through hole; 322, fastening bolt; 323, bushing; 33, first pressing rod; 331, pressing part; 3311, pressing plate; 3312, pressing block; 34, first connecting rod; 35, pushing component; 351, connecting shaft; 4, reinforcing plate; 51, first flat-mouth pin shaft; 52, second flat-mouth pin shaft; 53, third flat-mouth pin shaft; 61, first spacer sleeve; 62, second spacer sleeve; 63, third spacer sleeve; 7, workpiece to be clamped; 71, first clamping surface; 72, second clamping surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To further understand the content, features and effects of the present utility model, the following embodiments are given and are described in detail in conjunction with the attached Figures 1 to 6 as follows.

[0027] As Figures 1 to 6 shown, this embodiment provides a pressing device applied to a housing component, where the housing component is a gearbox housing with a thin housing. The pressing device includes a pressing main body 1, a rotary pressing cylinder mechanism 2 that cooperates with the first clamping surface 71 of the workpiece to be clamped 7, and a lower pressing mechanism 3 that cooperates with the second clamping surface 72 of the workpiece to be clamped 7; the first clamping surface 71 and the second clamping surface 72 are not coplanar. A support plate 13 that abuts against the surface of the workpiece to be clamped 7 and two positioning pins 14 for facilitating the positioning of the workpiece to be clamped 7 are further provided on the pressing main body 1, where the positioning pins 14 are aligned with the holes on the gearbox housing for facilitating positioning; the lower pressing mechanism 3 includes a first cylinder 31, a first cylinder mounting seat 32 and a linkage mechanism. The linkage mechanism realizes the loosening and clamping actions on the second clamping surface 72 under the action of the first cylinder 31. A space for the activities of the first cylinder 31 and the linkage mechanism is provided in the first cylinder mounting seat 32. The number of the rotary pressing cylinder mechanisms 2 is two, and the first clamping surfaces 71 that cooperate with the two rotary pressing cylinder mechanisms 2 are not coplanar. The number of the lower pressing mechanisms 3 is one. The rotary pressing cylinder mechanisms 2 and the lower pressing mechanisms 3 form a stable triangular support structure. In addition, its specific number is also related to the specific shape and size of the thin housing. In this embodiment, during the process of clamping the workpiece of the gearbox housing, due to the relatively large operating space at the upper end of the pressing main body 1, the rotary pressing cylinder mechanism 2 is adopted, and the operating space at the lower end is relatively small, so the lower pressing mechanism 3 that can adapt to small-space operations is adopted.

[0028] The present utility model is provided with a rotary pressing cylinder mechanism that cooperates with the first clamping surface of the workpiece to be clamped, and a lower pressing mechanism that cooperates with the second clamping surface of the workpiece to be clamped, and the first clamping surface and the second clamping surface are not coplanar. In addition, by providing a support plate that abuts against the surface of the workpiece to be clamped and positioning pins for facilitating the positioning of the workpiece to be clamped, and by providing a space for the activities of the first cylinder and the linkage mechanism in the first cylinder mounting seat of the lower pressing mechanism, the whole lower pressing mechanism can meet the clamping and handling work of the thin housing workpiece in a narrow space.

[0029] In this embodiment, as Figures 3 to 4As shown, the pressing body 1 includes a vertical support plate 11 and a horizontal support plate 12 which are fixedly arranged perpendicular to each other. The lower pressing mechanism 3 is fixedly arranged on the vertical support plate 11 through a plurality of bolts. Two of the support plates 13 are respectively fixedly arranged on both sides of the vertical support plate 11 through a plurality of bolts. The support plate 13 is rectangular in shape. The rotary pressing cylinder mechanism 2 is fixedly arranged on the horizontal support plate 12 through a plurality of bolts. In this embodiment, the number of the horizontal support plates 12 is two and they are connected to each other by bolts. Additionally, two reinforcing gusset plates 15 for reinforcement are connected between the horizontal support plate 12 and the vertical support plate 11.

[0030] In this embodiment, as Figures 5 to 6 shown, the above-mentioned linkage mechanism includes a first pressing rod 33, a first connecting rod 34 and a pushing component 35. The first cylinder mounting seat 32 and the first cylinder 31 are fixedly arranged on the vertical support plate 11 of the pressing body 1. One end of the pushing component 35 is threadedly connected to the first piston rod 311 of the first cylinder 31, and the other end of the pushing component 35 is hinged to the first pressing rod 33. A through hole 321 for the sliding of the pushing component 35 is formed in the first cylinder mounting seat 32. Both ends of the first connecting rod 34 are respectively hinged to the end of the first cylinder mounting seat 32 on the side away from the first cylinder 31 and the middle part of the first pressing rod 33. A pressing part 331 in contact with the workpiece to be clamped is arranged at the free end of the first pressing rod 33. Here, the free end is the end away from the hinge with the first cylinder mounting seat 32. By setting the linkage mechanism, the lower pressing mechanism 3 can adapt to working in a small space.

[0031] In this embodiment, as Figure 5 shown, two L-shaped reinforcing plates 4 arranged side by side are fixedly arranged on the upper surface of the first cylinder mounting seat 32 through a plurality of bolts, and the other ends of the reinforcing plates 4 are fixedly arranged on the vertical support plate 11 through bolts. By setting the reinforcing plates 4, the bending moment received by the first cylinder mounting seat 32 is offset.

[0032] In this embodiment, as Figure 4 shown, the two rotary pressing cylinder mechanisms 2 have the same structure, which includes a second cylinder mounting seat 21, a second cylinder 22, a second connecting rod 23 and a second pressing rod 24. Among them, the second cylinder mounting seat 21 is fixedly arranged on the horizontal support plate 12 through bolts, the second cylinder 22 is fixedly arranged on the second cylinder mounting seat 21, the end of the second piston rod of the second cylinder 22 is hinged to one end of the second connecting rod 23, and the other end of the second connecting rod 23 is fixedly provided with the second pressing rod 24. The total stroke of the second cylinder 22 is 70mm, of which the first 20mm is used to rotate the second connecting rod 23 by 90°, and the latter 50mm is used to press the second pressing rod 24.

[0033] In this embodiment, as Figure 4As shown, a detachable pressing head 241 is provided at the end of the second pressing rod 24, and its material can be rubber, which is convenient for later replacement.

[0034] In this embodiment, as Figure 5 shown, the pushing component 35 is a connecting shaft 351 clamped in the through hole 321. One end of the connecting shaft 351 is threadedly connected to the first piston rod 311, and the other end of the connecting shaft 351 is hinged to the end of the first pressing rod 33. A threaded groove is provided at the right end of the first piston rod 311, and an external threaded portion matching the threaded groove is provided on the left side of the connecting shaft 351. The right side of the connecting shaft 351 is a connecting shaft main body portion integrally formed with the external threaded portion.

[0035] In this embodiment, as Figure 5 shown, the first cylinder mounting seat 32 further includes a bushing 323 detachably provided on the inner wall of the through hole 321. The outer end face of the connecting shaft main body portion is clamped in the bushing 323 and can slide left and right along it. A fastening bolt 322 for limiting and fixing the bushing 323 is provided at the end of the first cylinder mounting seat 32 away from the first cylinder 31, which limits the bushing 323 and is convenient for later replacement of the worn bushing 323.

[0036] In this embodiment, as Figure 5 shown, in the pressing state, the included angle α between the connecting shaft 351 and the first pressing rod 33 is 90°; in the fully extended state, that is, when the connecting shaft 351 moves to the rightmost position, the included angle α between the connecting shaft 351 and the first pressing rod 33 is 80 - 85°, leaving a certain margin so that continuous force can be applied in the pressing state.

[0037] In this embodiment, as Figure 6 shown, the connecting shaft 351 and the first pressing rod 33 are hinged by a first flat-mouth pin shaft 51. A first spacer 61 for facilitating the replacement of the first flat-mouth pin shaft 51 is sleeved outside the first flat-mouth pin shaft 51. The first pressing rod 33 and the first connecting rod 34 are hinged by a second flat-mouth pin shaft 52. A second spacer 62 for facilitating the replacement of the second flat-mouth pin shaft 52 is sleeved outside the second flat-mouth pin shaft 52. The first connecting rod 34 and the pressing main body 1 are hinged by a third flat-mouth pin shaft 53. A third spacer 63 for facilitating the replacement of the third flat-mouth pin shaft 53 is sleeved outside the third flat-mouth pin shaft 53. The setting of the spacers here is for convenient later maintenance and replacement. In addition, one side of the pin shaft is in the form of a flat mouth, which plays an anti-rotation effect.

[0038] In this embodiment, as Figure 6 shown, the pressing portion 331 includes a pressing plate 3311 and a pressing block 3312. The pressing plate 3311 is fixedly arranged at the end of the first pressing rod 33, and the pressing block 3312 is detachably arranged on the pressing plate 3311, which is convenient for later replacement.

[0039] The pressing mechanism of the present utility model needs to cooperate with the upper tray and the lower tray when the transmission housing is flipped by 180°. At the initial and end states of the flipping, the transmission housing is respectively placed on the lower tray and the upper tray. During the flipping process, the upper and lower parts of the transmission housing are respectively pressed against the pressing main body 1 by the pressing head 241 and the pressing block 3312. Moreover, in the pressed state, the included angle α between the connecting shaft 351 and the first pressing rod 33 is 82°, ensuring the overall stability during the flipping process.

[0040] The above-mentioned utility model of the present invention only expresses the implementation manners of the embodiments of the present utility model, and thus cannot be construed as a limitation on the scope of the utility model patent, nor is it a limitation on the structure of the embodiments of the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the embodiments of the present utility model, several changes and improvements can still be made, and these all belong to the protection scope of the embodiments of the present utility model.

Claims

1. A clamping device applied to a shell component, characterized in that: It comprises a clamping body (1), a rotary clamping cylinder mechanism (2) cooperating with a first clamping surface (71) of a piece to be clamped (7), and a lower clamping mechanism (3) cooperating with a second clamping surface (72) of the piece to be clamped (7); The first clamping surface (71) and the second clamping surface (72) are not coplanar, and the clamping body (1) is also provided with a support plate (13) abutting against the surface of the part to be clamped (7) and a positioning pin (14) for facilitating the positioning of the part to be clamped (7); The lower clamping mechanism (3) comprises a first cylinder (31), a first cylinder mounting seat (32) and a connecting rod mechanism. The connecting rod mechanism realizes the loosening and clamping actions of the second clamping surface (72) under the action of the first cylinder (31). The first cylinder mounting seat (32) is provided with a space for the first cylinder (31) and the connecting rod mechanism to move.

2. A pressing device for a housing member according to claim 1, characterized in that: The connecting rod mechanism comprises a first pressing rod (33), a first connecting rod (34) and a pushing assembly (35); The first cylinder mounting seat (32) and the first cylinder (31) are fixedly arranged on the clamping body (1); one end of the pushing component (35) is threadedly connected to the first piston rod (311) of the first cylinder (31); the other end of the pushing component (35) is hinged to the first clamping rod (33); a through hole (321) for the pushing component (35) to slide is provided in the first cylinder mounting seat (32); the two ends of the first connecting rod (34) are respectively hingedly arranged at the end of the first cylinder mounting seat (32) away from the first cylinder (31) and the middle of the first clamping rod (33); the free end of the first clamping rod (33) is provided with a clamping portion (331) that contacts the clamped part.

3. A pressing device for a housing member according to claim 2, characterized in that: The clamping body (1) comprises a vertical support plate (11) and a horizontal support plate (12) which are fixedly arranged perpendicular to each other, the lower clamping mechanism (3) is arranged on the vertical support plate (11), the two support plates (13) are respectively arranged on both sides of the vertical support plate (11), and the rotary clamping cylinder mechanism (2) is arranged on the horizontal support plate (12).

4. A pressing device for a housing member according to claim 3, characterized in that: A plurality of L-shaped reinforcing plates (4) are fixedly arranged on the upper surface of the first cylinder mounting seat (32) by means of a plurality of bolts, and the other end of the reinforcing plate (4) is fixedly arranged on the vertical supporting plate (11) by means of bolts.

5. A pressing device for a housing member according to claim 3, characterized in that: The rotary clamping cylinder mechanism (2) comprises a second cylinder mounting seat (21), a second cylinder (22), a second connecting rod (23) and a second clamping rod (24); the second cylinder mounting seat (21) is fixedly arranged on a transverse support plate (12) by means of bolts; the second cylinder (22) is fixedly arranged on the second cylinder mounting seat (21); the end of the second piston rod of the second cylinder (22) is hingedly arranged on one end of the second connecting rod (23); the other end of the second connecting rod (23) is fixedly arranged with the second clamping rod (24); and the end of the second clamping rod (24) is provided with a detachable pressing head (241).

6. A pressing device for a shell member according to claim 2, characterized in that: The pushing assembly (35) is a connecting shaft (351) that is clamped in the through hole (321), one end of the connecting shaft (351) is threadedly connected to the first piston rod (311), and the other end of the connecting shaft (351) is hinged to the end of the first clamping rod (33).

7. A pressing device for a housing member according to claim 6, characterized in that: The first cylinder mounting seat (32) further comprises a bushing (323) detachably arranged on the inner wall of the through hole (321), and a fastening bolt (322) for limiting and fixing the bushing (323) is arranged at the end of the first cylinder mounting seat (32) away from the first cylinder (31).

8. A pressing device for a housing member according to claim 6, characterized in that: In the compressed state, the angle α between the connecting shaft (351) and the first compression rod (33) is 90°; in the fully extended state, the angle α between the connecting shaft (351) and the first compression rod (33) is 80-85°.

9. A pressing device for a housing member according to claim 6, characterized in that: The connecting shaft (351) and the first clamping rod (33) are hinged via a first flat-mouth pin (51), and the outer shell of the first flat-mouth pin (51) is provided with a first spacer (61) for facilitating replacement of the first flat-mouth pin (51). The first clamping rod (33) and the first connecting rod (34) are hinged via a second flat-mouth pin (52), and the outer shell of the second flat-mouth pin (52) is provided with a second spacer (62) for facilitating replacement of the second flat-mouth pin (52). The first connecting rod (34) and the clamping body (1) are hinged via a third flat-mouth pin (53), and the outer shell of the third flat-mouth pin (53) is provided with a third spacer (63) for facilitating replacement of the third flat-mouth pin (53).

10. A pressing device for a housing member according to claim 2, characterized in that: The pressing portion (331) comprises a pressing plate (3311) and a pressing block (3312); the pressing plate (3311) is fixedly arranged at the end of the first pressing rod (33); and the pressing block (3312) is detachably arranged on the pressing plate (3311).

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