Riveting equipment with pre-pressing structure

Abstract

The utility model relates to the technical field of machine manufacturing, in particular to riveting equipment with a prepressing structure, which comprises a bottom plate, a riveting power component and a prepressing component, the riveting power component is mounted on the bottom plate through a support, a lower bearing plate is fixedly mounted at the top of the bottom plate, and a lower bearing plate is mounted at the bottom of the bottom plate. The pre-pressing assembly is arranged between the riveting power assembly and the lower bearing plate. Firstly, a rivet is placed in a groove in the lower supporting body, then a workpiece is placed, the workpiece is pressed on the supporting head to change the position of the workpiece, then the position of the pre-pressing head is adjusted through flowing of hydraulic oil, pipelines on the two sides are disconnected through a hydraulic oil controller after stabilization, stability of hydraulic cylinders on the upper side and the lower side is guaranteed, and then the riveting power assembly moves downwards; during riveting, the pre-pressing plate makes contact with the surface of the workpiece, the riveting power assembly continues to move downwards, the spring is compressed, the multiple pre-pressing heads apply uniform pressure to the workpiece, it is guaranteed that the position of the workpiece is stable, and then the riveting power assembly continues to move downwards to complete riveting work.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical manufacturing technical field, concretely is a riveting equipment with pre -press structure. BACKGROUND

[0002] In the field of mechanical manufacturing, as the core process of efficient connection of plate parts, stamping riveting is widely used in the assembly production of various structural parts, and the pre-pressing process is the key link to ensure the quality of stamping riveting - its core function is to accurately fix the relative position of the plate parts to be riveted, avoid displacement, warping or deformation of the plate parts in the stamping riveting process, and thus ensure the riveting accuracy, connection strength and structural stability.

[0003] At present, there are various pre-pressing structures for flat plate parts in the industry, but with the diversification of product structure design, the application proportion of arc-shaped plate parts and other special-shaped plate parts in production is gradually increasing, among which the arc-shaped plate parts have a surface with a non-planar curved surface structure, which has a compatibility contradiction with the existing flat plate special pre-pressing structure: the existing structure cannot effectively fit the arc-shaped surface, either because the contact is insufficient, resulting in unbalanced pressing force distribution, and stable positioning cannot be formed, or because of local pressure concentration, causing surface damage or plastic deformation of the plate parts, eventually causing riveting misplacement, insufficient connection reliability and other problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the utility model provides a riveting equipment with pre-pressing structure, which has the advantages of effectively fitting the surface of the workpiece, especially for arc-shaped plates or special-shaped plates, realizing accurate self-adaptive curved surface fitting, providing stable and balanced pre-pressing force, preventing workpiece deformation and riveting defects, etc., and solving the problem of compatibility contradiction between the arc-shaped plate parts with a surface of non-planar curved surface structure and the existing flat plate special pre-pressing structure.

[0005] The utility model relates to a riveting equipment with pre-pressing structure, including bottom plate, riveting power assembly and pre-pressing assembly, riveting power assembly is installed on the bottom plate through the support, the top of bottom plate is fixedly installed with lower bearing plate, pre-pressing assembly is located between riveting power assembly and lower bearing plate;

[0006] The pre-pressing assembly comprises a lower mounting plate and an upper mounting plate, the lower mounting plate is fixedly installed on both sides of the lower surface of the lower bearing plate, a lower hydraulic cylinder is fixedly installed on the upper side of the lower mounting plate in parallel, a support head is fixedly installed on the output end of the lower hydraulic cylinder, the upper mounting plate is fixedly installed on both sides of the lower surface of the output end of the riveting power assembly, an upper hydraulic cylinder is fixedly installed on the lower side of the upper mounting plate in parallel, a protection pipe is fixedly installed between the lower mounting plate and the upper mounting plate, a plurality of pipelines are arranged in the protection pipe, the two ends of the pipelines are connected with the lower hydraulic cylinder and the upper hydraulic cylinder respectively, a hydraulic oil controller is fixedly installed in the middle of the pipelines, an installation seat is fixedly installed on the output end of the upper hydraulic cylinder, and a pre-pressing head is elastically assembled on the lower end of the installation seat.

[0007] The pre-pressing head is fixedly installed on the lower end of the spring, the upper end of the pre-pressing head is fixedly installed with a movable rod, and the upper end of the movable rod is movably inserted into the output end of the upper hydraulic cylinder.

[0008] The pre-pressing head is fixedly installed on the lower end of the spring, the upper end of the pre-pressing head is fixedly installed with a movable rod, and the upper end of the movable rod is movably inserted into the output end of the upper hydraulic cylinder.

[0009] The width of the pre-pressing plate is greater than the width of the sliding groove, and the two ends of the pre-pressing plate are designed as arc lines.

[0010] The pre-pressing head is fixedly installed on the lower end of the spring, the upper end of the pre-pressing head is fixedly installed with a movable rod, and the upper end of the movable rod is movably inserted into the output end of the upper hydraulic cylinder.

[0011] The protection pipe and the middle section of the pipeline are designed as telescopic pipes.

[0012] The pre-pressing head is fixedly installed on the lower end of the spring, the upper end of the pre-pressing head is fixedly installed with a movable rod, and the upper end of the movable rod is movably inserted into the output end of the upper hydraulic cylinder.

[0013] The pre-pressing head is fixedly installed on the lower end of the spring, the upper end of the pre-pressing head is fixedly installed with a movable rod, and the upper end of the movable rod is movably inserted into the output end of the upper hydraulic cylinder. The discharging assembly comprises a support seat, a fixed plate, an electric push rod and a pushing block, the support seat is fixedly installed between the support and the lower support body, the fixed plate is fixedly installed on the upper side of the support seat, the electric push rod is fixedly installed in the inner cavity of the fixed plate, the pushing block is fixedly installed on the output end of the electric push rod, and the end portion of the pushing block is composed of two inclined plates.

[0014] The utility model discloses a riveting equipment with pre -press structure, wherein the front fixed mounting of material guide slide is equipped with on the lower bearing plate and is located lower support body, and the sliding groove that supports the seat, lower support body and material guide slide all are set up with the pushing material block is adapted.

[0015] Compared with the prior art, the utility model has the beneficial effects as follows:

[0016] 1, the utility model discloses a plurality of hydraulic cylinder, support head and pre -press head design can provide stable and balanced pre -pressing force, can avoid the uneven stress of workpiece and tilt, guarantee the flat and stable of workpiece placement, can realize effective support clamping to workpiece, prevent workpiece deformation and appear riveting defect, improve reliability and security.

[0017] 2, the utility model support head and pre -pressing plate can effectively adhere to workpiece surface, especially for arc plate or special-shaped plate, realize accurate self -adaptation curved surface adhesion.

[0018] 3, the utility model pushes material block and makes workpiece after riveting rise and makes workpiece slide along material guide slide, realizes automatic and orderly unloading. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings explained here are used to provide further understanding of the present application, and constitute a part of the present application, the illustrative embodiment of the present application and its explanation are used to explain the present application, and do not constitute improper limitation to the present application. In the drawings:

[0020] Figure 1 It is the structure schematic drawing of the utility model;

[0021] Figure 2 It is the connection structure schematic drawing of pre -pressing assembly, lower bearing plate and unloading assembly of the utility model;

[0022] Figure 3 It is the structure schematic drawing of pre -pressing assembly of the utility model;

[0023] Figure 4 It is the structure schematic drawing of upper hydraulic cylinder and its output end of the utility model;

[0024] Figure 5 It is the structure schematic drawing of pre -pressing head of the utility model;

[0025] Figure 6 It is the structure schematic drawing of unloading assembly of the utility model.

[0026] In the figure: 1, bottom plate; 2, riveting head; 3, riveting power assembly; 4, rivet; 5, lower bearing plate; 6, upper support body; 7, lower support body; 8, pre-pressing assembly; 801, lower mounting plate; 802, upper mounting plate; 803, lower hydraulic cylinder; 804, upper hydraulic cylinder; 805, protection pipe; 806, hydraulic oil controller; 807, support head; 808, mounting seat; 809, spring; 810, pre-pressing head; 811, movable rod; 812, cavity; 813, rotating shaft; 814, connecting rod; 815, counterweight; 816, sliding groove; 817, pre-pressing plate; 9, material feeding assembly; 901, support seat; 902, fixed plate; 903, electric push rod; 904, material pushing block; 10, material guiding slide; 11, sliding groove. DETAILED DESCRIPTION

[0027] In the following, a plurality of embodiments of the present application will be disclosed with reference to the drawings. For the purpose of clear illustration, a plurality of practical details will be described in the following description. However, it should be appreciated that these practical details should not be used to limit the present application. That is, in some embodiments of the present application, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0028] Please refer to Figures 1-6 The riveting device with a pre-pressing structure comprises a bottom plate 1, a riveting power assembly 3, and a pre-pressing assembly 8. The riveting power assembly 3 is installed on the bottom plate 1 through a support. The top of the bottom plate 1 is fixedly installed with a lower bearing plate 5. The pre-pressing assembly 8 is arranged between the riveting power assembly 3 and the lower bearing plate 5.

[0029] The pre-pressing assembly 8 comprises a lower mounting plate 801 and an upper mounting plate 802. The lower mounting plate 801 is fixedly installed on both sides of the surface of the lower bearing plate 5. The upper side of the lower mounting plate 801 is fixedly installed with a lower hydraulic cylinder 803 in parallel. The output end of the lower hydraulic cylinder 803 is fixedly installed with a support head 807. The upper mounting plate 802 is fixedly installed on both sides of the lower surface of the output end of the riveting power assembly 3. The lower side of the upper mounting plate 802 is fixedly installed with an upper hydraulic cylinder 804 in parallel. The lower mounting plate 801 and the upper mounting plate 802 are fixedly installed with a protection pipe 805. The protection pipe 805 is internally provided with a plurality of pipelines. The two ends of the pipelines are respectively connected with the lower hydraulic cylinder 803 and the upper hydraulic cylinder 804 corresponding in position. The hydraulic oil controller 806 is fixedly installed in the middle of the pipelines.

[0030] The lower mounting plate 801 and the upper mounting plate 802 are hollow structures inside for being communicated through pipes, the upper hydraulic cylinders 804 and the lower hydraulic cylinders 803 are communicated through the pipes one by one, the hydraulic oil controller 806 is mounted in the middle of the pipes, the hydraulic oil controller 806 is used for controlling the communication and disconnection of the pipes, and the inside is provided with a pressure gauge, which can measure the oil pressure in the two sides of the hydraulic cylinder, and it can also be connected to an external oil tank to further control and adjust the oil pressure in the two sides of the hydraulic cylinder, so that the pressure of all upper hydraulic cylinders 804 is the same, and the pressure of all lower hydraulic cylinders 803 is the same, thereby ensuring that the pre-pressing force of the workpiece is uniform and the same, and avoiding the workpiece from being inclined due to uneven force, and ensuring the flatness and stability of the workpiece.

[0031] The output end of the upper hydraulic cylinder 804 is fixedly provided with a mounting seat 808, and the lower end of the mounting seat 808 is elastically provided with a pre-pressing head 810.

[0032] Since the two sides of the hydraulic cylinder are communicated through the pipes, after the workpiece is placed, the arc-shaped plate-shaped workpiece will contact the output end of the lower hydraulic cylinder 803 pressed by the support head 807, so that the hydraulic oil flows to the upper hydraulic cylinder 804, and after transmission, the pre-pressing head 810 moves downward, the position of the pre-pressing head 810 is adjusted, so that the distribution of the support head 807 and the pre-pressing head 810 conforms to the surface of the workpiece, thereby making the force applied in the subsequent process uniform, the number, size and distribution of the lower hydraulic cylinder 803 and the upper hydraulic cylinder 804 can be adjusted according to different workpieces, and the lower hydraulic cylinder 803 is provided with a reset spring inside, when the support head 807 is not under pressure, the elastic force of the reset spring moves the support head 807 to the initial position.

[0033] The lower side of the mounting seat 808 is fixedly provided with a spring 809, the pre-pressing head 810 is fixedly provided at the lower end of the spring 809, the upper end of the pre-pressing head 810 is fixedly provided with a movable rod 811, and the upper end of the movable rod 811 is movably inserted into the output end of the upper hydraulic cylinder 804.

[0034] The riveting power assembly 3 moves downward, the pre-pressing head 810 contacts the surface of the workpiece, the riveting power assembly 3 continues to move downward, the spring 809 is compressed, and multiple pre-pressing heads 810 apply uniform pressure to the workpiece to ensure the stable position of the workpiece, and the riveting power assembly 3 continues to move downward to complete riveting.

[0035] The pre-pressing head 810 is internally provided with a cavity 812, the cavity 812 is movably provided with a rotating shaft 813, the outer side of the rotating shaft 813 is fixedly provided with a connecting rod 814, the pre-pressing head 810 is provided with a sliding groove 816 matched with the connecting rod 814, and the outer end of the connecting rod 814 penetrates through the sliding groove 816 and is fixedly provided with a pre-pressing plate 817.

[0036] The connecting rod 814 penetrates the sliding groove 816 and can be deflected in the sliding groove 816. The pre-pressing plate 817 is pressed, and the force is still point-to-point contact for the arc-shaped plate workpiece, but the pre-pressing plate 817 can be pressed through planar contact for the inclined plate, so that the pressure is reduced to avoid indentation.

[0037] The width of the pre-pressing plate 817 is greater than the width of the sliding groove 816, and both ends of the pre-pressing plate 817 are designed as arc lines.

[0038] Through the arc line design, effective contact can be achieved and the situation of sharp end contact can be avoided, and the pressing effect is improved.

[0039] The connecting rod 814 is fixedly provided with a counterweight 815.

[0040] The counterweight 815 is arranged to allow the pre-pressing plate 817 to be located directly below the pre-pressing head 810 in normal times.

[0041] The protection tube 805 and the intermediate section of the pipeline are designed as telescopic tubes.

[0042] Due to the movement of the riveting power assembly 3, the upper protection tube 805 and the pipeline are telescopic, so part of the protection tube 805 and the pipeline is designed as a telescopic tube. The telescopic tube can be a bellows or a folding tube. The protection tube 805 in the figure can protect the internal pipeline.

[0043] The center of the output end of the riveting power assembly 3 is fixedly provided with an upper support 6, and the center of the upper side of the lower bearing plate 5 is fixedly provided with a lower support 7. The lower side of the upper support 6 is fixedly provided with a riveting head 2, and the lower support 7 is placed with a rivet 4.

[0044] The lower support 7 is provided with a groove for placing the rivet 4, and the upper support 6 is used to install the riveting head 2.

[0045] It also includes a blanking assembly 9, which includes a support seat 901, a fixed plate 902, an electric push rod 903 and a pushing block 904. The support seat 901 is fixedly installed between the support and the lower support 7. The fixed plate 902 is fixedly installed on the upper side of the support seat 901. The electric push rod 903 is fixedly installed in the inner cavity of the fixed plate 902. The pushing block 904 is fixedly installed on the output end of the electric push rod 903, and the end of the pushing block 904 is composed of two inclined plates.

[0046] The electric push rod 903 pushes the pushing block 904 to move forward, lifts the riveted workpiece and pushes it forward.

[0047] The lower bearing plate 5 is fixedly provided with a material guiding slide 10 on the front surface of the lower support 7, and the support seat 901, the lower support 7 and the material guiding slide 10 are all provided with sliding grooves 11 matched with the pushing block 904.

[0048] The riveted workpiece is pushed out along the guide chute 10 by the push block 904, and the discharging is completed.

[0049] When the riveting device with pre-pressing structure is used: first, the rivet 4 is placed in the groove on the lower support body 7, then the workpiece is placed, the workpiece is pressed on the support head 807 to change its position, and then the position of the pre-pressing head 810 is adjusted through the flow of hydraulic oil, after stabilization, the two side pipelines are disconnected through the hydraulic oil controller 806, the stability of the upper and lower hydraulic cylinders is ensured, then the riveting power assembly 3 moves downward, the pre-pressing plate 817 contacts the surface of the workpiece, the riveting power assembly 3 continues to move downward, the spring 809 is compressed, the multiple pre-pressing heads 810 apply uniform pressure to the workpiece, the position of the workpiece is ensured to be stable, then the riveting power assembly 3 continues to move downward to complete the riveting work, after the riveting is completed, the hydraulic oil controller 806 controls the two side pipelines to be connected, then the workpiece is pushed out, the support head 807 is reset, the electric push rod 903 pushes the push block 904 to move forward, the riveted workpiece is lifted and pushed forward, and then is pushed out along the guide chute 10, and the discharging is completed.

[0050] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A riveting apparatus with pre-press structure, comprising a base plate (1), a riveting power assembly (3) and a pre-pressing assembly (8), characterized in that: The riveting power assembly (3) is installed on the bottom plate (1) through a support, the top of the bottom plate (1) is fixedly installed with a lower bearing plate (5), and the pre-pressing assembly (8) is arranged between the riveting power assembly (3) and the lower bearing plate (5). The pre-pressing assembly (8) comprises a lower mounting plate (801) and an upper mounting plate (802), the lower mounting plate (801) is fixedly installed on the two sides of the surface of the lower bearing plate (5), the upper side of the lower mounting plate (801) is fixedly installed with a lower hydraulic cylinder (803) side by side, the output end of the lower hydraulic cylinder (803) is fixedly installed with a support head (807), the upper mounting plate (802) is fixedly installed on the two sides of the lower surface of the output end of the riveting power assembly (3), the lower side of the upper mounting plate (802) is fixedly installed with an upper hydraulic cylinder (804) side by side, the lower mounting plate (801) and the upper mounting plate (802) are fixedly installed with a protection pipe (805) therebetween, a plurality of pipelines are arranged in the protection pipe (805), the two ends of the pipelines are connected with the lower hydraulic cylinder (803) and the upper hydraulic cylinder (804) corresponding in position respectively, a hydraulic oil controller (806) is fixedly installed in the middle of the pipelines, the output end of the upper hydraulic cylinder (804) is fixedly installed with a mounting seat (808), and the lower end of the mounting seat (808) is elastically assembled with a pre-pressing head (810).

2. The riveting apparatus having a pre-press structure according to claim 1, characterized in that: The lower side of the mounting seat (808) is fixedly installed with a spring (809), the pre-pressing head (810) is fixedly installed at the lower end of the spring (809), the upper end of the pre-pressing head (810) is fixedly installed with a movable rod (811), and the upper end of the movable rod (811) is movably inserted into the output end of the upper hydraulic cylinder (804).

3. The riveting apparatus having a pre-press structure according to claim 1, characterized in that: A cavity (812) is arranged in the pre-pressing head (810), a rotating shaft (813) is movably arranged in the cavity (812), a connecting rod (814) is fixedly arranged on the outer side of the rotating shaft (813), a sliding groove (816) is arranged on the pre-pressing head (810) and matched with the connecting rod (814), and the outer end of the connecting rod (814) penetrates through the sliding groove (816) and is fixedly assembled with a pre-pressing plate (817).

4. The riveting apparatus having a pre-press structure according to claim 3, characterized in that: The width of the pre-pressing plate (817) is greater than that of the sliding groove (816), and the two ends of the pre-pressing plate (817) are designed in an arc shape.

5. The riveting apparatus having a pre-press structure according to claim 3, wherein: The connecting rod (814) is fixedly assembled with a counterweight (815).

6. The riveting apparatus having a pre-stressing structure according to claim 1, characterized in that: The protection pipe (805) and the middle section of the pipeline are designed as telescopic pipes.

7. The riveting apparatus having a pre-stressing structure according to claim 1, characterized in that: An upper support body (6) is fixedly arranged at the center of the output end of the riveting power assembly (3), a lower support body (7) is fixedly arranged at the center of the upper side of the lower bearing plate (5), a riveting head (2) is fixedly installed on the lower side of the upper support body (6), and a rivet (4) is placed on the upper side of the lower support body (7).

8. The riveting apparatus having a pre-press structure according to claim 7, characterized in that: It also includes a blanking assembly (9), the blanking assembly (9) includes a support seat (901), a fixed plate (902), an electric push rod (903) and a pushing block (904), the support seat (901) is fixedly installed between the support and the lower support body (7), the fixed plate (902) is fixedly installed on the upper side of the support seat (901), the electric push rod (903) is fixedly installed in the inner cavity of the fixed plate (902), and the pushing block (904) is fixedly installed on the output end of the electric push rod (903), and the end of the pushing block (904) is composed of two inclined plates.

9. The riveting apparatus having a pre-press structure according to claim 8, characterized in that: The lower bearing plate (5) is fixedly installed with a guide chute (10) on the front of the lower support body (7), and sliding grooves (11) matched with the pushing block (904) are formed in the support seat (901), the lower support body (7) and the guide chute (10).

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