Pre-hasp folding mechanism
By designing a pre-hook folding mechanism, a multi-point folding of the pre-hook assembly is achieved using a drive cylinder and sliding block structure, solving the problem of cumbersome traditional manual operation and improving production efficiency and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN YONGQIAN AUTOMATION CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional pre-hook assemblies require manual folding, which is cumbersome and affects production speed.
A pre-hook folding mechanism was designed, which uses a drive cylinder and a sliding block structure to enable the pre-hook assembly to be folded to different angles at multiple points simultaneously. Through the cooperation of the mounting plate and the sliding block, precise positioning and angle folding are achieved.
It enables simultaneous folding of multi-point pre-fastened components, simplifies the operation process, improves production efficiency, and is suitable for processing workpieces of different materials and processes.
Smart Images

Figure CN224157659U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of assembly equipment, specifically to a pre-fastening folding mechanism. Background Technology
[0002] With industrial upgrading and the rapid development of the automotive industry, more and more car manufacturers are emerging across the country. Different car manufacturers have different production standards and processing technologies, and the use of tooling equipment during production and assembly has become a common phenomenon. Working in the non-standard design industry, the complex on-site conditions and production requirements are placing increasing demands and challenges on our non-standard design capabilities.
[0003] Traditional pre-hook assemblies require manual folding of the pre-hook edges using hand clamps, which is cumbersome for workers, involves repetitive steps, and affects production speed. Summary of the Invention
[0004] The purpose of this utility model is to provide a pre-hook folding mechanism that enables multiple pre-hook components to be folded to different angles simultaneously. This allows for manual operation of multiple points, meeting the needs of workpieces made of different materials and with different processes. It is particularly suitable for the assembly of inner and outer side panels in automobile manufacturing plants, where the position of the inner and outer panels is initially fixed by pre-hook before being moved to subsequent workstations for further processing.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A pre-fastened folding mechanism, comprising:
[0007] The base is L-shaped, with a fixing block protruding from the middle of the upper surface of the lower horizontal part. The fixing block has guide holes along the length direction; the lower part of the base has several connecting through holes.
[0008] The sliding block includes two parallel fixed plates, the rear of which is L-shaped and inserted into both sides of the fixed block of the base. The L-shaped bend of the fixed plate has a through hole and a pin that passes through the guide hole of the fixed block. A first bearing or a first roller is provided between the rear ends of the two fixed plates via a connecting shaft and slides on the upper surface of the lower part of the base when it is horizontal. A second roller or a second bearing protruding from the bottom surface of the sliding block is provided in the middle of the sliding block via a connecting shaft, and the second roller or the second bearing is located in front of the fixed block of the base.
[0009] A drive cylinder has its cylinder body connected to the upper end of the base, and its piston rod end connected to the sliding block, driving the sliding block to move back and forth;
[0010] The first mounting plate is a T-shaped plate with several connecting through holes along the length of one side and is attached to the lower side of the base by bolts; the outer side of the other vertical side of the first mounting plate has several connecting through holes along the height direction.
[0011] The second mounting plate is an L-shaped plate with several connecting through holes on both sides, and one side is bolted to the other side of the lower part of the base.
[0012] The first slide includes an L-shaped connecting rod and a sliding platform disposed at the front end of the connecting rod; one side of the connecting rod is connected to the outer side of the other side of the first mounting plate which is vertically disposed; the sliding platform is perpendicular to the other side of the connecting rod and extends into the base above the horizontal lower upper surface, for the second roller or the second bearing to slide.
[0013] A sliding bracket has one end connected to the front end of the sliding block and perpendicular to the axis of the sliding block; the other end of the sliding bracket is provided with an inverted U-shaped bracket, and a third roller or a third bearing is provided inside the U-shaped bracket through a connecting shaft;
[0014] The second slide is L-shaped, with one side connected to the other side of the second mounting plate; the front part of the upper surface of the other side of the second slide is a flat surface, and the rear part is a forward-sloping surface, and the third roller or third bearing on the sliding bracket is slidably mounted on the upper surface of this side.
[0015] Preferably, the two fixing plates of the sliding block are provided with several connecting through holes on both sides of the front part along the length direction; a first connecting block is provided at the rear part between the two fixing plates, and the upper part of the first connecting block is pivotally connected to the piston rod end of the driving cylinder; one end of the sliding bracket is provided with a second connecting block that can be embedded in the front part between the two fixing plates, and is connected to the fixing plates by bolts.
[0016] Preferably, the two fixing plates and the first connecting block of the sliding block are an integral structure.
[0017] The pre-hook folding mechanism of this utility model can be easily installed on any frame by setting mounting plates on the left and right sides, achieving precise point-to-point positioning and ensuring that the mechanism can be aligned with the position of the pre-hook.
[0018] This invention converts the thrust of the driving cylinder into linear X-axis motion of the bearing or roller. When it passes a certain position, the bearing or roller changes direction to Z-axis, thereby realizing a change in the direction of power, thus realizing the movement of the pre-fastener from X-axis to Z-axis, and achieving the required angle of bending.
[0019] Compared with the prior art, the advantages of this utility model are:
[0020] This utility model, through the design of the mounting plate, sliding block, and drive cylinder, can achieve the required bending angle for the pre-hook on the side panel of the vehicle body; it realizes the simultaneous folding of multiple pre-hook components to different angles, and allows for manual operation of multiple points simultaneously, meeting the needs of workpieces of different materials and processes.
[0021] The mechanism described in this utility model has a simple overall structure and is easy to position. It only requires placing the mechanism on the required part and then operating it to achieve the angle folding of the pre-fastened buckle. Attached Figure Description
[0022] Figure 1 Three-dimensional representation of the present utility model Figure 1 ;
[0023] Figure 2 Three-dimensional representation of the present utility model Figure 2 ;
[0024] Figure 3 Three-dimensional breakdown of the embodiments of this utility model Figure 1 ;
[0025] Figure 4 Three-dimensional breakdown of the embodiments of this utility model Figure 2 . Detailed Implementation
[0026] See Figures 1-4 The pre-fastening folding mechanism of this utility model includes:
[0027] The base 1 is L-shaped, with a fixing block 11 protruding from the middle of the upper surface of the lower part. The fixing block 11 has a guide hole 111 along the length direction. The lower part of the base 1 has several connecting through holes.
[0028] The sliding block 2 includes two parallel fixed plates 21. The rear part of the fixed plate 21 is L-shaped and is inserted into both sides of the fixed block 11 of the base 1. The L-shaped bend of the fixed plate 21 is provided with a through hole and a pin 22 passing through the guide hole 11 of the fixed block 11. A first bearing 23 or a first roller is provided between the rear ends of the two fixed plates 21 through a connecting shaft and slides on the upper surface of the lower part of the base 1 when it is horizontal. A second roller or a second bearing 24 protruding from the bottom surface of the sliding block 2 is provided in the middle of the sliding block 2 through a connecting shaft, and the second roller or the second bearing 24 is located in front of the fixed block 11 of the base 1.
[0029] A drive cylinder 3 has its cylinder body connected to the upper end of the base 1, and its piston rod end connected to the sliding block 2, driving the sliding block 2 to move back and forth;
[0030] The first mounting plate 4 is a T-shaped plate, with several connecting through holes on one side 41 along the length direction, and is attached to the lower side of the base 1 by bolts; the outer side of the other side 42 of the first mounting plate 4, which is vertically arranged, has several connecting through holes along the height direction.
[0031] The second mounting plate 5 is an L-shaped plate with several connecting through holes on its two sides 51 and 52 respectively. One side 51 is connected to the other side of the lower part of the base 1 by bolts.
[0032] The first slide 6 includes an L-shaped connecting rod 61 and a slide 62 disposed at the front end of the connecting rod 61; one side of the connecting rod 61 is connected to the outer side of the other side 42 of the first mounting plate 4 which is vertically disposed; the slide 62 is perpendicular to the other side of the connecting rod 61 and extends into the base 1 above the horizontal lower upper surface, for the second roller or the second bearing 24 to slide.
[0033] The sliding bracket 7 has one end connected to the front end of the sliding block 2 and is perpendicular to the axis of the sliding block 2; the other end of the sliding bracket 7 is provided with an inverted U-shaped bracket 71, and a third roller or a third bearing 72 is provided in the U-shaped bracket 71 through a connecting shaft;
[0034] The second slide 8 is L-shaped, with one side 81 connected to the other side 53 of the second mounting plate 5; the front part of the upper end surface 821 of the other side 82 of the second slide 8 is a flat surface, and the rear part is a forward-sloping surface. The third roller or third bearing 72 on the sliding bracket 7 is slidably mounted on the upper end surface of the side 82.
[0035] Preferably, the two fixing plates 21 of the sliding block 2 are provided with several connecting through holes on both sides of the front part along the length direction; a first connecting block 25 is provided at the rear part between the two fixing plates 21, and the upper part of the first connecting block 25 is pivotally connected to the piston rod end of the driving cylinder 3; one end of the sliding bracket 7 is provided with a second connecting block 73 that can be embedded in the front part between the two fixing plates 21, and is connected to the fixing plates 21 by bolts.
[0036] Preferably, the two fixing plates 21 and the first connecting block 25 of the sliding block 2 are an integral structure.
Claims
1. A pre-fastened folding mechanism, characterized in that, include: The base is L-shaped, with a fixing block protruding from the middle of the upper surface of the lower horizontal part. The fixing block has guide holes along the length direction; the lower part of the base has several connecting through holes. The sliding block includes two parallel fixed plates, the rear of which is L-shaped and inserted into both sides of the fixed block of the base. The L-shaped bend of the fixed plate has a through hole and a pin that passes through the guide hole of the fixed block. A first bearing or a first roller is provided between the rear ends of the two fixed plates via a connecting shaft and slides on the upper surface of the lower part of the base when it is horizontal. A second roller or a second bearing protruding from the bottom surface of the sliding block is provided in the middle of the sliding block via a connecting shaft, and the second roller or the second bearing is located in front of the fixed block of the base. A drive cylinder has its cylinder body connected to the upper end of the base, and its piston rod end connected to the sliding block, driving the sliding block to move back and forth; The first mounting plate is a T-shaped plate with several connecting through holes along the length of one side and is attached to the lower side of the base by bolts; the outer side of the other vertical side of the first mounting plate has several connecting through holes along the height direction. The second mounting plate is an L-shaped plate with several connecting through holes on both sides, and one side is bolted to the other side of the lower part of the base. The first slide includes an L-shaped connecting rod and a sliding platform disposed at the front end of the connecting rod; one side of the connecting rod is connected to the outer side of the other side of the first mounting plate which is vertically disposed; the sliding platform is perpendicular to the other side of the connecting rod and extends into the base above the horizontal lower upper surface, for the second roller or the second bearing to slide. A sliding bracket has one end connected to the front end of the sliding block and perpendicular to the axis of the sliding block; the other end of the sliding bracket is provided with an inverted U-shaped bracket, and a third roller or a third bearing is provided inside the U-shaped bracket through a connecting shaft; The second slide is L-shaped, with one side connected to the other side of the second mounting plate; the front part of the upper surface of the other side of the second slide is a flat surface, and the rear part is a forward-sloping surface, and the third roller or third bearing on the sliding bracket is slidably mounted on the upper surface of this side.
2. The pre-fastening folding mechanism as described in claim 1, characterized in that, The sliding block has several connecting through holes on both sides of the front of the two fixed plates along the length direction; a first connecting block is provided at the rear between the two fixed plates, and the upper part of the first connecting block is pivotally connected to the piston rod end of the driving cylinder; one end of the sliding bracket is provided with a second connecting block that can be embedded in the front between the two fixed plates, and is connected to the fixed plates by bolts.
3. The pre-fastening folding mechanism as described in claim 2, characterized in that, The two fixing plates and the first connecting block of the sliding block are an integral structure.