Device for cutting end part of decorative strip for vehicle

Abstract

The invention relates to the technical field of vehicle accessory machining devices, in particular to a vehicle decoration strip end cutting device which comprises a machine table, a cutting knife is arranged on one side of the machine table in a sliding mode in the horizontal direction, the machine table is provided with a supporting table used for containing a workpiece, and a pressing block used for abutting against the workpiece is arranged on the supporting table. A pressure stabilizing table is further arranged on the machine table and located on one side of the supporting table, a limiting assembly used for abutting against the cut end of the workpiece is arranged on the pressure stabilizing table, and a remaining box is arranged on the lower side of the limiting assembly. The cutting device has the following beneficial effects that the part which is not cut is also stabilized through the limiting assembly, cutting operation is conducted from the position between the supporting table and the pressure stabilizing table through the cutting knife, in the cutting process, a workpiece body and the end expected to be cut are stabilized, and after the end of the workpiece is cut off through the cutting knife, cutting operation is conducted through the cutting knife. And the limiting assembly can enable the end of the workpiece to fall into the remaining box, and subsequent cutting is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of vehicle accessory processing devices, and in particular to an end cutting device for vehicle decorative strips. Background Art

[0002] Metal automotive decorative strips are decorative components manufactured through electroplating or metal forming processes. They are commonly found in positions such as the intake grille, window frame, door anti-collision area, and fog lamp cover, enhancing the aesthetics and class sense of the vehicle through a mirror-like reflective effect.

[0003] During the processing, it is necessary to deform the originally straight pre-processed decorative strip through a bending process so that the decorative strip forms the required local bending degree. Generally, the bending process relies on a mold. It is necessary to clamp both ends of the decorative strip with a fixture and press the middle part of the decorative strip against the mold, so that both sides of the decorative strip are bent. However, when the fixture applies a clamping force to both ends of the decorative strip, it will cause extrusion damage to the ends of the decorative strip. Therefore, the extruded part needs to be cut and discarded before the subsequent process (end assembly).

[0004] Generally, an end of the decorative strip is operated by a moving cutting knife. During the cutting process, a pressing block is used to limit the middle part of the decorative strip to facilitate cutting. However, in the actual operation process, the end of the decorative strip is prone to jitter driven by the cutting knife. In the case of jitter, burrs are easily formed at the cutting position, which will affect the subsequent assembly. Summary of the Invention

[0005] In order to improve the stability of the decorative strip during cutting, this application provides an end cutting device for vehicle decorative strips.

[0006] An end cutting device for vehicle decorative strips provided by this application adopts the following technical solution: An end cutting device for vehicle decorative strips includes a machine table. A cutting knife is slidably arranged horizontally on one side of the machine table. The machine table is provided with a support table for placing a workpiece. A pressing block for pressing the workpiece is arranged on the support table. A voltage stabilizing table is also arranged on the machine table and on one side of the support table. A limiting component for abutting against the cut end of the workpiece is arranged on the voltage stabilizing table. A retaining box is arranged under the limiting component; when the cutting knife cuts off the end of the workpiece, the limiting component abuts and makes the end of the workpiece fall into the retaining box.

[0007] By adopting the above technical solution, first place the workpiece on the support table, stabilize the middle part of the workpiece through the pressing block, extend the part to be cut out to the voltage stabilizing table, and also stabilize the uncut part through the limiting component. Perform a cutting operation from the position between the support table and the voltage stabilizing table with a cutting tool. During the cutting process, both the body of the workpiece and the expected cut end are stabilized, thereby improving the smoothness of the cutting point. And after the cutting tool disconnects the end of the workpiece, the limiting component can make the end of the workpiece fall into the retention box, facilitating the next cutting operation.

[0008] Preferably, the upper surface of the voltage stabilizing table has a horizontal support surface near the support table. The limiting component includes a base block arranged above the horizontal support surface and a telescopic block slidably arranged on the base block. The telescopic block is used to abut against the upper surface of the workpiece to stabilize the end of the workpiece.

[0009] By adopting the above technical solution, when the telescopic block moves and extends on the base block, it will press the end of the workpiece against the horizontal support surface, thereby achieving the effect of stabilizing the end of the workpiece.

[0010] Preferably, the side of the horizontal support surface away from the support table has an inclined guiding surface, and the side of the inclined guiding surface away from the horizontal support surface inclines towards the retention box.

[0011] Preferably, when the telescopic block extends, the telescopic block abuts the end of the workpiece against the horizontal support surface. After the telescopic block retracts, the end of the telescopic block is located within the inclined guiding surface in the vertical projection, and the end of the workpiece moves along the inclined guiding surface into the retention box under the action of gravity.

[0012] By adopting the above technical solution, when the telescopic block retracts, the overall length of the limiting component will become shorter. At this time, the existence of the inclined guiding surface can enable the workpiece to fall into the retention box under the action of gravity.

[0013] Preferably, the telescopic block is sleeved on the base block, and the telescopic direction of the telescopic block is parallel to the length direction of the base block.

[0014] By adopting the above technical solution, the movement between the telescopic block and the base block can realize the length change of the overall limiting component.

[0015] Preferably, the base block has an air cavity inside, there is a piston in the air cavity, the piston has a linkage rod passing through the end of the base block, the end of the linkage rod is connected to the telescopic block, and the telescopic block also has an elastic member for driving the telescopic block to retract.

[0016] By adopting the above technical solution, after gas is introduced into the air chamber, the piston will move, driving the linkage rod to extend, and then the telescopic block to move. The elastic member has the ability to always reset the telescopic block to its original position.

[0017] Preferably, the elastic member is a spring. The spring is located inside the telescopic block and sleeved on the linkage rod. One end of the spring is connected to the end of the base block, and the other end is connected to the inside of the telescopic block.

[0018] By adopting the above technical solution, the spring will change with the gas in the air chamber, thereby achieving different telescopic states.

[0019] Preferably, the limiting component further includes a rotating shaft rotatably connected to the machine table. A plurality of the base blocks are arranged on the circumferential wall of the rotating shaft along the circumferential direction.

[0020] By adopting the above technical solution, setting the rotating shaft will enable the limiting component to rotate. After the cutting is completed, when the limiting component rotates towards the inclined guiding surface, it will be more convenient for the end of the workpiece to fall into the retaining box, and then enable another set of limiting components to re-contact the newly placed workpiece.

[0021] Preferably, a rubber block is arranged at the end of the telescopic block, and the cross-section of the rubber block is a quarter circle.

[0022] By adopting the above technical solution, after the rubber block moves, it will drive the workpiece to move downward.

[0023] Preferably, when the rotating shaft drives the base block to rotate, the rubber block indirectly presses the end of the workpiece against the inclined guiding surface, causing the spring to be compressed and deformed.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. By the limiting component, the uncut part is also stabilized. The cutting operation is performed by the cutting tool between the support table and the voltage stabilizing table. During the cutting process, both the body of the workpiece and the end to be cut are stabilized, thereby improving the smoothness of the cutting part; 2. When the telescopic block retracts, the overall length of the limiting component will become shorter. At this time, the existence of the inclined guiding surface enables the workpiece to fall into the retaining box under the action of gravity; 3. The rotating limiting component can drive the end of the workpiece towards the inclined guiding surface while rotating, reducing the situation of jamming at the end of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present application; Figure 2 It is a schematic structural diagram of the voltage stabilizing table; Figure 3 It is a schematic diagram of the state of the limit component and the voltage stabilizing table in Embodiment 1 of the present application, and the telescopic block is in a retracted state; Figure 4 It is a schematic diagram of the state of the limit component and the voltage stabilizing table in Embodiment 1 of the present application, and the telescopic block is in an extended state; Figure 5 It is a schematic diagram of the internal structure of the limit component in Embodiment 1 of the present application; Figure 6 It is a schematic diagram of the structure of the limit component in Embodiment 2 of the present application; Figure 7 It is a schematic diagram of the state of the limit component in Embodiment 2 of the present application, and the telescopic block is in a compressed state.

[0026] Explanation of reference numerals: 100, machine table; 110, cutting tool; 111, support table; 112, pressing block; 113, voltage stabilizing table; 114, retaining box; 115, horizontal support surface; 116, inclined guiding surface; 120, base block; 121, telescopic block; 122, rotating shaft; 123, air cavity; 124, piston; 125, linkage rod; 126, spring; 130, rubber block; 140, workpiece end. Detailed implementation manners

[0027] The present application will be further described in detail below with reference to the accompanying drawings.

[0028] Embodiment 1: Embodiment 1 of the present application discloses a cutting device for the end of a vehicle trim strip. Refer to Figure 1 , which includes a machine table 100. A cutting tool 110 is slidably arranged along the horizontal direction on one side of the machine table 100. In this embodiment, the moving direction of the cutting tool 110 is perpendicular to the length direction of the machine table 100.

[0029] The machine table 100 is provided with a support table 111 for placing a workpiece. A pressing block 112 for pressing the workpiece is arranged on the support table 111. The pressing block 112 is connected to the machine table 100 through a cylinder. The moving stroke of the pressing block 112 is in the vertical direction, and it abuts against the upper side of the workpiece from top to bottom. In this embodiment, the support table 111 is provided with a positioning structure for positioning the position of the workpiece, such as a positioning groove or a positioning pin, etc., which will not be described in detail in this embodiment.

[0030] A stabilizing platform 113 is also provided on the machine 100, located to one side of the support platform 111. This platform 113 and the support platform 111 are aligned and function as a combined support for the workpiece. A gap exists between the stabilizing platform 113 and the support platform 111, allowing the cutting blade 110 to enter and cut the workpiece. A stopper assembly is provided on the stabilizing platform 113, designed to contact the cut end of the workpiece. A retention box 114 is located below the stopper assembly. When the cutting blade 110 separates the workpiece end 140, the stopper assembly contacts the workpiece end 140, causing it to fall into the retention box 114.

[0031] Before cutting, the pressing block 112 cooperates with the support platform 111 to stabilize the middle part of the workpiece, which is the part that needs to be retained later. At the same time, the limiting assembly cooperates with the support platform 111 to stabilize the end 140 of the workpiece during the cutting process. After the cutting is completed, the end 140 of the workpiece will fall into the retention box 114, thereby achieving the collection effect.

[0032] Reference Figure 1 、 Figure 2 The upper surface of the stabilizing platform 113 has a horizontal support surface 115 close to the support platform 111. The horizontal support surface 115 has an inclined guide surface 116 on the side away from the support platform 111. The inclined guide surface 116 is inclined toward the retention box 114 on the side away from the horizontal support surface 115. In this embodiment, the limiting assembly includes a base block 120 disposed above the horizontal support surface 115 and a telescopic block 121 slidably disposed on the base block 120. The telescopic block 121 is used to contact the upper surface of the workpiece to stabilize the workpiece end 140. The limiting assembly also includes a rotating shaft 122 rotatably connected to the machine platform 100. A plurality of base blocks 120 are circumferentially disposed on the peripheral wall of the rotating shaft 122.

[0033] Reference Figure 3 、 Figure 4 The rotating shaft 122 is connected to the machine 100 via a drive motor. The rotating shaft 122 has a hollow structure. The base block 120 has an air cavity 123 inside. The hollow structure inside the rotating shaft 122 is connected to the air cavity 123. As the rotating shaft 122 rotates, gas can be filled inside. The gas source can be connected externally through an air pipe. In this embodiment, two base blocks 120 are provided, and the two base blocks 120 are arranged in opposite directions with respect to the rotating shaft 122. When gas is introduced into the air cavity 123, the telescopic block 121 will slide along the length direction of the base block 120, thereby achieving the effect of extending the telescopic block 121.

[0034] In this embodiment, the connection point of the horizontal support surface 115 and the inclined guide surface 116 is located below the end 140 of the workpiece, and the position of the connection point is on the side of the midpoint of the end 140 of the workpiece close to the support table 111. That is to say, when the end 140 of the workpiece is cut, the end 140 of the workpiece forms a separate part. At this time, when the telescopic block 121 retracts, the end of the telescopic block 121 is located within the inclined guide surface 116 in the vertical projection. After the end 140 of the workpiece has no pressure on the horizontal support surface 115, due to the connection point of the horizontal support surface 115 and the inclined guide surface 116 being close to the support table 111, the part of the end 140 of the workpiece located above the inclined guide surface 116 has a greater weight, causing the workpiece to tilt and thus fall into the retention box 114.

[0035] When the end 140 of the workpiece falls, it causes the rotating shaft 122 to rotate by ninety degrees. Then, a new workpiece is placed on the support table 111 and the voltage stabilizing table 113. Since the current workpiece is integral, there is no pressing by the telescopic block 121 and it will not fall. Then, the rotating shaft 122 is rotated by ninety degrees, so that the new limiting component is located above the workpiece. At this time, air is introduced into the air chamber 123, causing the telescopic block 121 to extend again until it extends above the horizontal support surface 115.

[0036] Refer to Figure 5 , specifically, the telescopic block 121 is sleeved on the base block 120. A piston 124 is provided in the air chamber 123 of the base block 120, and one side of the piston 124 is connected to the air inlet source. When the air pressure increases, the piston 124 will move towards the telescopic block 121, and the other side of the piston 124 has a linkage rod 125. The linkage rod 125 passes through the end of the base block 120 and is fixedly connected to the inside of the telescopic block 121. The telescopic block 121 also has an elastic member for driving the telescopic block 121 to retract. The elastic member is a spring 126. The spring 126 is located inside the telescopic block 121 and sleeved on the linkage rod 125. One end of the spring 126 is connected to the end of the base block 120, and the other end is connected to the inside of the telescopic block 121.

[0037] When the air chamber 123 is inflated, the piston 124 moves, causing the linkage rod 125 to extend. At this time, the spring 126 will be stretched, and the telescopic block 121 will move above the horizontal support surface 115 to press the end 140 of the workpiece. After cutting is completed, the air pressure in the air chamber 123 decreases, and the spring 126 will return to its original shape, causing the telescopic block 121 to retract to the inclined guide surface 116. At this time, the end 140 of the workpiece falls under the action of gravity. If it adheres and does not fall, during the subsequent rotation of the rotating shaft 122, the telescopic block 121 will act on the end 140 of the workpiece to move downward.

[0038] It is worth noting that since the telescopic block 121 is originally attached to the workpiece, during the retraction of the spring 126, the workpiece end 140 will also move a distance toward the inclined guide surface 116 under the action of friction, making it easier for the workpiece end 140 to fall into the retention box 114.

[0039] The cutting process of Example 1 of the present application is as follows: first, the workpiece is placed on the support table 111, and the pressing block 112 is then positioned downward to stabilize the middle portion of the workpiece. After rotating the rotating shaft 122 and introducing gas, the telescopic block 121 extends outward until it moves in the vertical projection direction to the horizontal support surface 115. The telescopic block 121 is then restrained by the portion of the workpiece end 140 located on the horizontal support surface 115. Since the workpiece end 140 remains integral with the middle portion of the workpiece at this point, the movement of the telescopic block 121 does not affect the overall position.

[0040] At this time, the middle and ends of the workpiece are limited, and the cutting knife 110 moves and enters the gap between the support platform 111 and the stabilizing platform 113, which improves the overall stability of the workpiece, optimizes the quality of the cutting area, and reduces the generation of burrs.

[0041] After cutting is complete, workpiece end 140 becomes a separate part. Telescopic block 121 still holds workpiece end 140 in place, with a portion of it positioned above horizontal support surface 115. The pressure inside rotating shaft 122 is then reduced, causing spring 126 to retract telescopic block 121 to its initial position, clearing horizontal support surface 115. As telescopic block 121 retracts, friction forces cause workpiece end 140 to move toward retention box 114. Since the center of gravity of workpiece end 140 is located away from horizontal support surface 115, the entire workpiece falls into retention box 114.

[0042] In some cases, due to adhesion between the workpiece end 140 and the horizontal support surface 115, the rotating shaft 122 will also rotate circumferentially, and the entire stop assembly will also move the remaining workpiece end 140. At this time, after rotating 90 degrees, the two stop assemblies are in a vertical direction. Then, a new workpiece is placed, and the rotating shaft 122 is rotated another 90 degrees until the stop assembly on the other side is located above the workpiece. The next cutting can then be carried out. The overall cutting is stable and the workpiece end 140 can be automatically collected in the retention box 114.

[0043] Example 2: The difference from Example 1 is that, referring to Figure 6, in this embodiment, a rubber block 130 is provided at the end of the telescopic block 121, and the cross-section of the rubber block 130 is a quarter circle. One of the flat sides of the rubber block 130 is connected to the end of the telescopic block 121, and its other flat side is horizontally arranged, so that the arc surface side of the rubber block 130 faces downward.

[0044] Refer to Figure 7 , at this time, the contact length between the telescopic block 121 and the end 140 of the workpiece remains unchanged. However, during the rotation of the rotating shaft 122, the rubber block 130 will contact the end 140 of the workpiece, and the longer telescopic block 121 will press against the inclined guiding surface 116, so that the spring 126 is compressed and deformed. At this time, it can be ensured that the end 140 of the workpiece is pushed into the retention box 114, avoiding the situation where the end 140 of the workpiece remains on the inclined guiding surface 116.

[0045] The embodiments of this specific implementation manner are all preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A trimming end cutting device for a vehicle, comprising a machine table (100), characterized in that: On one side of the machine table (100), a cutting knife (110) is slidably arranged in the horizontal direction. The machine table (100) is provided with a support table (111) for placing a workpiece. A pressing block (112) for pressing the workpiece is arranged on the support table (111). A voltage stabilizing table (113) is also arranged on the machine table (100) and on one side of the support table (111). A limiting component for abutting against the cut end of the workpiece is arranged on the voltage stabilizing table (113). A retaining box (114) is arranged below the limiting component; after the cutting knife (110) cuts off the end (140) of the workpiece, the limiting component abuts and causes the end (140) of the workpiece to fall into the retaining box (114).

2. The end cutting device for vehicle trim strips according to claim 1, characterized in that: The upper surface of the voltage stabilizing table (113) has a horizontal support surface (115) close to the support table (111). The limiting component includes a base block (120) arranged above the horizontal support surface (115) and a telescopic block (121) slidably arranged on the base block (120). The telescopic block (121) is used to abut against the upper surface of the workpiece to stabilize the end (140) of the workpiece.

3. The end cutting device for vehicle trim strip according to claim 2, wherein: One side of the horizontal support surface (115) away from the support table (111) has an inclined guiding surface (116). The side of the inclined guiding surface (116) away from the horizontal support surface (115) is inclined towards the retaining box (114).

4. The end cutting device for vehicle trim strip according to claim 3, characterized in that: When the telescopic block (121) extends, the telescopic block (121) abuts the end (140) of the workpiece on the horizontal support surface (115). After the telescopic block (121) retracts, the end of the telescopic block (121) is located within the inclined guiding surface (116) in the vertical projection, and the end (140) of the workpiece moves along the inclined guiding surface (116) into the retaining box (114) under the action of gravity.

5. The end cutting device for vehicle trim strip according to claim 4, wherein: The telescopic block (121) is sleeved on the base block (120), and the telescopic direction of the telescopic block (121) is parallel to the length direction of the base block (120).

6. The end cutting device for vehicle trim strip according to claim 5, characterized in that: An air cavity (123) is arranged inside the base block (120). A piston (124) is arranged inside the air cavity (123). The piston (124) has a linkage rod (125) passing through the end of the base block (120). The end of the linkage rod (125) is connected to the telescopic block (121). An elastic member for driving the telescopic block (121) to retract is also arranged inside the telescopic block (121).

7. The end cutting device for vehicle trim strip according to claim 6, characterized in that: The elastic member is a spring (126). The spring (126) is arranged inside the telescopic block (121) and sleeved on the linkage rod (125). One end of the spring (126) is connected to the end of the base block (120), and the other end is connected to the inside of the telescopic block (121).

8. The end cutting device for vehicle trim strip according to claim 7, wherein: The limiting component further includes a rotating shaft (122) rotatably connected to the machine table (100). A plurality of the base blocks (120) are arranged on the circumferential wall of the rotating shaft (122) along the circumferential direction.

9. The end cutting device for vehicle trim strip according to claim 8, characterized in that: A rubber block (130) is arranged at the end of the telescopic block (121). The cross section of the rubber block (130) is a quarter circle.

10. A trimming strip end cutting device for a vehicle according to claim 9, characterized in that: When the rotating shaft (122) drives the base block (120) to rotate, the rubber block (130) indirectly presses the end of the workpiece (140) against the inclined guiding surface (116), so that the spring (126) is compressed and deformed.

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