Truck portal pre-bending device
By using a pre-bending device with a combination of a concave die and a convex die, along with the automated positioning of the limiting components and pressure plate, the problems of complex and high cost in the production of traditional freight car gantry frames have been solved, and efficient and stable processing of arc transition structures has been achieved.
Patent Information
- Application Number
- CN202522000046.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-17
AI Technical Summary
Traditional truck gantry manufacturing processes are complex, costly, and of inconsistent quality. In particular, the manufacturing process for the arc transition section is complex and manual polishing is ineffective.
A pre-bending device using a combination of a concave die and a convex die, along with a limiting component and a pressure plate, is used to position and bend the gantry frame. The sliding of the concave die and the convex die is driven by a hydraulic cylinder to achieve automated processing of the arc transition structure.
The production process was simplified, costs were reduced, and the surface quality stability of the gantry was improved, achieving a highly efficient pre-bending effect.
Smart Images
Figure CN224673556U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of truck gantry processing technology, and more specifically, to a truck gantry pre-bending device. Background Technology
[0002] Traditional trucks have a gantry-style front frame, hence the name "gantry frame." Its characteristic is that the shape of the gantry frame's outer frame must match the shape of the truck's rear cab's outer frame. This makes the truck's overall structural frame look aesthetically pleasing and appealing from the rear.
[0003] However, the specific shape of the truck gantry is an inverted U-shaped structure with two R200-300 arc transitions at the top of the inverted U-shape. Currently, the production process of this arc involves cutting arc plates, manufacturing welding fixtures, assembling and welding, and then grinding after manual arc welding. The process is complicated, the production cost is high, and the surface quality after manual grinding is unstable.
[0004] In view of this, we propose a pre-bending device for a freight car gantry. Utility Model Content
[0005] The purpose of this application is to provide a pre-bending device for truck gantry frames, which can effectively solve the problems of complex production process, high cost and unstable quality of front plate gantry frames in the prior art, and achieve the effect of pre-bending truck gantry frames.
[0006] This application provides a pre-bending device for a truck gantry, comprising:
[0007] Processing platform;
[0008] Two dies are symmetrically arranged on the top of the processing platform and are driven to slide by an external force.
[0009] A punch and a corresponding die are fixedly mounted on the top of the processing platform. The punch and the die work together to bend the gantry frame body.
[0010] The limiting component is slidably mounted on one side of the processing platform to limit the gantry frame body laterally.
[0011] The pressure plate is slidably set on the top of the processing platform to vertically limit the gantry frame body.
[0012] As an optional solution to the technical solution of this application, the concave mold is fixedly disposed at the output end of the hydraulic cylinder A, and the hydraulic cylinder A is fixedly disposed on the top of the processing platform by a fixing member.
[0013] As an optional solution to the technical solution of this application, the limiting component includes an L-shaped limiting plate, a slider is fixedly provided on the top of the L-shaped limiting plate, a slide rail is fixedly provided on the bottom of the processing platform, the slider is slidably disposed with the slide rail, the L-shaped limiting plate is driven to slide by an external force, and an opening is provided on the top of the processing platform corresponding to the L-shaped limiting plate.
[0014] As an optional solution to the technical solution of this application, a connecting plate A is fixedly provided at the bottom of the L-shaped limiting plate, a screw is rotatably provided on the outer side of the connecting plate A, a threaded sleeve is provided on the outer side of the screw, the threaded sleeve is fixedly provided at the bottom of the processing platform through the connecting plate B, and a knob is fixedly provided at the end of the screw away from the L-shaped limiting plate.
[0015] As an optional solution to the technical solution of this application, a sliding column is fixedly provided on the top of the pressure plate, a spring is sleeved on the outside of the sliding column, a push plate is provided on the top of the spring, the sliding column is slidably provided on the inside of the push plate, a limit plate is fixedly provided on the top of the sliding column, and the push plate is driven to rise and fall by external force.
[0016] As an optional solution to the technical solution of this application, the push plate is fixedly installed at the output end of the hydraulic cylinder B, and the hydraulic cylinder B is fixedly installed on the top of the processing platform by an L-shaped support plate.
[0017] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:
[0018] (1) This application uses a punch and a die. By placing the unbent gantry body on the processing platform and using two sets of dies and punches to bend the gantry body, it effectively solves the problems of complex production process, high cost and unstable quality of front plate gantry in the prior art, and achieves the effect of pre-bending the truck gantry.
[0019] (2) This application sets a limiting component on one side of the processing platform and limits one end of the gantry frame body by an L-shaped limiting plate, so that the part of the gantry frame body that needs to be bent can be placed in accordance with two sets of concave dies and convex dies. After the pressure plate presses down on the gantry frame body, the L-shaped limiting plate is moved away from the gantry frame body to complete the positioning of the gantry frame body, which facilitates the subsequent bending operation of the gantry frame body. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the truck gantry pre-bending device disclosed in a preferred embodiment of this application;
[0021] Figure 2 This is an exploded structural diagram of the pre-bending device for a freight truck gantry disclosed in a preferred embodiment of this application.
[0022] Figure 3 This is a schematic diagram of the assembly of the processing platform and the limiting component in a truck gantry pre-bending device according to a preferred embodiment of this application;
[0023] Figure 4 This is a schematic diagram of the limiting component in a truck gantry pre-bending device disclosed in a preferred embodiment of this application;
[0024] The following are the labels in the diagram: 100. Gantry frame body; 1. Machining platform; 11. Slide rail; 12. Opening; 2. Die; 21. Hydraulic cylinder A; 22. Fixing component; 3. Punch; 4. Limiting assembly; 41. L-shaped limiting plate; 42. Slider; 43. Connecting plate A; 44. Screw; 441. Knob; 45. Threaded sleeve; 451. Connecting plate B; 5. Pressure plate; 51. Spring; 52. Sliding column; 521. Limiting disc; 53. Push plate; 54. Hydraulic cylinder B; 55. L-shaped support plate. Detailed Implementation
[0025] The present application will be further described in detail below with reference to the accompanying drawings.
[0026] Reference Figure 1 , Figure 2 and Figure 3 This application discloses a pre-bending device for a truck gantry frame, including a processing platform 1. Two concave dies 2 are symmetrically arranged on the top of the processing platform 1. The concave dies 2 are driven to slide by external force. A punch 3 is fixedly arranged on the top of the processing platform 1 corresponding to the concave dies 2. The punch 3 cooperates with the concave dies 2 to perform bending operations on the gantry frame body 100. A limit component 4 is slidably arranged on one side of the processing platform 1 to limit the gantry frame body 100 laterally. A pressure plate 5 is slidably arranged on the top of the processing platform 1 to limit the gantry frame body 100 vertically.
[0027] First, the unbent gantry frame body 100 is laterally positioned on the processing platform 1 by the limiting component 4 to ensure that the part of the gantry frame body 100 that needs to be bent corresponds to the position of the punch 3 and the die 2. Then, the pressure plate 5 is used to press and fix the gantry frame body 100 vertically to prevent the workpiece from shifting during the bending process. Then, the limiting component 4 is moved away from the gantry frame body 100. Finally, the die 2 is driven to slide towards the punch 3. The gantry frame body 100 is bent by the cooperation of the punch 3 and the die 2 to form the required arc transition structure.
[0028] Reference Figure 2 The die 2 is fixedly installed at the output end of the hydraulic cylinder A21, and the hydraulic cylinder A21 is fixedly installed on the top of the processing platform 1 by the fixing part 22.
[0029] The hydraulic cylinder A21 is stably installed on the processing platform 1 by the fixing part 22. When it is necessary to drive the die 2 to move, the hydraulic cylinder A21 is activated. The output end of the hydraulic cylinder A21 drives the die 2 to slide along the top of the processing platform 1 to ensure the bending effect.
[0030] Reference Figure 1 , Figure 3 and Figure 4 The limiting component 4 includes an L-shaped limiting plate 41. A slider 42 is fixedly installed on the top of the L-shaped limiting plate 41, and a slide rail 11 is fixedly installed on the bottom of the processing platform 1. The slider 42 and the slide rail 11 are slidably arranged. The L-shaped limiting plate 41 is driven to slide by an external force. An opening 12 is opened on the top of the processing platform 1 corresponding to the L-shaped limiting plate 41. A connecting plate A43 is fixedly installed on the bottom of the L-shaped limiting plate 41. A screw 44 is rotatably arranged on the outer side of the connecting plate A43. A threaded sleeve 45 is threaded on the outer side of the screw 44. The threaded sleeve 45 is fixedly installed on the bottom of the processing platform 1 through the connecting plate B451. A knob 441 is fixedly installed on the end of the screw 44 away from the L-shaped limiting plate 41.
[0031] Rotating the knob 441 causes the screw 44 to rotate inside the threaded sleeve 45. Since the threaded sleeve 45 is fixed to the bottom of the processing platform 1 by the connecting plate B451, the screw 44 will move along its own axis when it rotates, and then drive the L-shaped limit plate 41 to move through the connecting plate A43. The slider 42 slides along the slide rail 11 to ensure the stability of the L-shaped limit plate 41 during the movement, so that the position of the L-shaped limit plate 41 is adjusted.
[0032] The outer side of the L-shaped limiting plate 41 contacts the end of the gantry frame body 100 to achieve lateral limiting. After the gantry frame body 100 is vertically fixed, the knob 441 is rotated in the opposite direction to move the L-shaped limiting plate 41 away from the gantry frame body 100, so as to avoid affecting the subsequent bending operation.
[0033] Reference Figure 1 and Figure 2 A sliding column 52 is fixedly installed on the top of the pressure plate 5. A spring 51 is sleeved on the outside of the sliding column 52. A push plate 53 is installed on the top of the spring 51. The sliding column 52 is slidably installed on the inside of the push plate 53. A limit plate 521 is fixedly installed on the top of the sliding column 52. The push plate 53 is driven to rise and fall by external force. The push plate 53 is fixedly installed at the output end of the hydraulic cylinder B54. The hydraulic cylinder B54 is fixedly installed on the top of the processing platform 1 through an L-shaped support plate 55.
[0034] The hydraulic cylinder B54 is fixed to the top of the processing platform 1 by the L-shaped support plate 55. When the hydraulic cylinder B54 is started, its output end drives the push plate 53 to move downward. The push plate 53 pushes the slide column 52 and the pressure plate 5 downward through the spring 51 until the pressure plate 5 contacts and presses against the top of the gantry frame body 100. The spring 51 can play a buffering role to avoid rigid impact on the gantry frame body 100 when the pressure plate 5 is pressed down, thus protecting the surface quality of the workpiece. At the same time, the slide column 52 can slide inside the push plate 53. The limit plate 521 prevents the slide column 52 from falling out of the push plate 53, ensuring that the pressure plate 5 always maintains a stable downward pressing state.
[0035] After bending is completed, the hydraulic cylinder B54 drives the push plate 53 to move upward, the spring 51 returns to its original position, and the pressure plate 5 moves upward, releasing the fixation on the gantry frame body 100.
[0036] In summary, when using the truck gantry pre-bending device disclosed in this application embodiment, firstly, according to the processing dimensions of the gantry body 100, the position of the L-shaped limiting plate 41 is adjusted by rotating the knob 441. Then, the unbent gantry body 100 is placed on the processing platform 1, so that one end of the gantry body 100 contacts the L-shaped limiting plate 41 to complete the lateral positioning.
[0037] Then, the hydraulic cylinder B54 is activated, and the push plate 53 drives the spring 51, the sliding column 52 and the pressure plate 5 to move downward. The pressure plate 5 presses the gantry frame body 100 onto the processing platform 1 to achieve vertical fixation. Then, the knob 441 is rotated in the opposite direction to move the L-shaped limit plate 41 away from the gantry frame body 100. Finally, the two hydraulic cylinders A21 are activated, and the hydraulic cylinders A21 drive the corresponding die 2 to slide towards the punch 3. The punch 3 and the die 2 cooperate to bend both sides of the gantry frame body 100 to form an arc transition structure.
[0038] After bending is completed, first control the hydraulic cylinder A21 to drive the die 2 to reset, then control the hydraulic cylinder B54 to drive the pressure plate 5 to move upward, and finally remove the processed gantry frame body 100 to complete one processing cycle.
Claims
1. A pre-bending device for a freight truck gantry, characterized in that, Include: Processing platform (1); Two dies (2) are symmetrically arranged on the top of the processing platform (1) and the dies (2) are driven to slide by external force. The punch (3) and the corresponding die (2) are fixedly set on the top of the processing platform (1). The punch (3) and the die (2) work together to bend the gantry frame body (100). The limiting component (4) is slidably disposed on one side of the processing platform (1) for lateral limiting of the gantry frame body (100); The pressure plate (5) is slidably set on the top of the processing platform (1) to vertically limit the gantry frame body (100).
2. The pre-bending device for a freight truck gantry according to claim 1, characterized in that: The die (2) is fixedly installed at the output end of the cylinder A (21), and the cylinder A (21) is fixedly installed on the top of the processing platform (1) by a fixing member (22).
3. The pre-bending device for a freight truck gantry according to claim 1, characterized in that: The limiting component (4) includes an L-shaped limiting plate (41), a slider (42) is fixedly provided on the top of the L-shaped limiting plate (41), a slide rail (11) is fixedly provided on the bottom of the processing platform (1), the slider (42) is slidably disposed with the slide rail (11), the L-shaped limiting plate (41) is driven to slide by an external force, and an opening (12) is opened on the top of the processing platform (1) corresponding to the L-shaped limiting plate (41).
4. The pre-bending device for a freight truck gantry according to claim 3, characterized in that: A connecting plate A (43) is fixedly installed at the bottom of the L-shaped limiting plate (41). A screw (44) is rotatably installed on the outer side of the connecting plate A (43). A threaded sleeve (45) is threaded on the outer side of the screw (44). The threaded sleeve (45) is fixedly installed at the bottom of the processing platform (1) through the connecting plate B (451). A knob (441) is fixedly installed at the end of the screw (44) away from the L-shaped limiting plate (41).
5. The pre-bending device for a freight truck gantry according to claim 1, characterized in that: A sliding column (52) is fixedly installed on the top of the pressure plate (5). A spring (51) is sleeved on the outside of the sliding column (52). A push plate (53) is installed on the top of the spring (51). The sliding column (52) is slidably installed on the inside of the push plate (53). A limit plate (521) is fixedly installed on the top of the sliding column (52). The push plate (53) is driven to rise and fall by external force.
6. The pre-bending device for a freight truck gantry according to claim 5, characterized in that: The push plate (53) is fixedly installed at the output end of the oil cylinder B (54), and the oil cylinder B (54) is fixedly installed on the top of the processing platform (1) by an L-shaped support plate (55).