A hot stamping positioning tool for an automobile injection molding part

Abstract

The utility model relates to hot stamping technical field discloses a kind of hot stamping positioning tool for automobile injection molding, including mounting seat, locating seat, locating seat is fixedly installed on mounting seat, mounting seat is located on drive seat, and mounting seat is driven by drive device;Locating seat is provided with clamping assembly, clamping assembly, buffer assembly, clamping assembly is arranged in the both sides end of locating seat, clamping assembly is arranged in the side of locating seat, and buffer assembly is arranged on clamping assembly;The utility model is raised by clamping, clamping, buffer assembly cooperation, and improves hot stamping stability and workpiece quality, clamping assembly is limited workpiece end with the clamping end head of the both sides of locating seat, and inside clamping convex head increases friction force to prevent horizontal displacement;Clamping assembly is adjusted clamping lever angle by swivel lever and sleeve embedded connection, and longitudinal fixation is realized by adhering workpiece top, buffer assembly is provided with buffer convex head in clamping lever end head, and built-in telescopic rod and spring, absorb impact, adjust pressure, avoid workpiece indentation, satisfy high-precision processing demand.

Description

Technical Field

[0001] This utility model relates to the field of hot stamping technology, specifically a hot stamping positioning fixture for automotive injection molded parts. Background Technology

[0002] The existing Chinese patent document CN 215847815 U discloses a positioning fixture for processing automotive injection molded parts, including: a base, a pair of side plates vertically arranged on the top side wall of the base, a fixing block fixedly arranged on the top of the side plates, a slot provided at the top center of the fixing block, through holes provided on both sides of the slot, the through holes being arranged in the fixing block, and a movable rod movably arranged in the through holes. This device has a novel structure and ingenious design. Through the cooperation and connection of the movable rod, connecting shaft, cam, horizontal plate, limiting plate, gear, worm gear and spring, it can clamp and fix the injection molded part in the slot. Turning the handle drives the worm gear to rotate, the worm gear drives the gear to rotate, thereby driving the cam to rotate. The cam pushes the horizontal plate to move downward, driving the two movable rods to move downward. Finally, the clamping plate can clamp the injection molded part. The clamping is stable, the clamping effect is good, it is not easy to fall off, the operation is convenient and the practicality is strong.

[0003] However, in the above-mentioned solutions and existing technologies, the workpiece is installed on the positioning seat during the injection molding process and is transferred into the hot stamping machine for processing through the sliding component. However, some existing positioning seats lack the buffer component of the clamping component in the hot stamping of injection molded parts. Since the tooling needs to drive the injection molded part to fit precisely with the stamping head during the hot stamping process, the traditional rigid clamping structure is prone to causing indentations on the surface of the injection molded part due to improper pressure control when contacting the workpiece. This is especially true for injection molded parts with textured surfaces or thin-walled structures, where the risk of damage is higher and may not meet the actual needs of high-precision hot stamping processing.

[0004] Therefore, this utility model proposes a hot stamping positioning fixture for automotive injection molded parts to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a hot stamping positioning fixture for automotive injection molded parts to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot stamping positioning fixture for automotive injection molded parts, comprising a mounting base and a positioning base, wherein the positioning base is fixedly mounted on the mounting base, the mounting base is disposed on a drive base, and the mounting base is driven by a drive device; The positioning base is provided with a snap-fit ​​component, a clamping component, and a buffer component. The snap-fit ​​component is located at both ends of the positioning base, the clamping component is located on the side of the positioning base, and the buffer component is located on the clamping component.

[0007] Preferably, the snap-fit ​​end of the snap-fit ​​assembly is fixedly disposed at both ends of the top of the positioning seat, and the snap-fit ​​end holds the tooling component.

[0008] Preferably, the snap-fit ​​assembly has snap-fit ​​protrusions evenly distributed on the inner side of the snap-fit ​​end, and the snap-fit ​​protrusions are in close contact with the two ends of the tooling.

[0009] Preferably, the rotating rod in the clamping assembly is embedded in the sleeve, the sleeve is fixedly mounted on the fixed rod, the fixed rod is fixedly mounted on both ends of the positioning seat, and the rotating rod is driven to rotate by the driving assembly.

[0010] Preferably, a clamping rod is fixedly provided at the fixed end of the rotating rod in the clamping assembly, and the clamping rod is in close contact with the top of the tooling.

[0011] Preferably, the buffer protrusion in the buffer assembly is fixedly disposed at the end of the clamping rod, a telescopic rod is fixedly installed inside the buffer protrusion, and a spring is sleeved on the telescopic rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by working together with the snap-fit ​​assembly, clamping assembly and buffer assembly, the stability of hot stamping and the quality of the workpiece are improved. The snap-fit ​​assembly limits the end of the workpiece with the snap-fit ​​ends on both sides of the positioning seat, and the snap-fit ​​protrusion on the inner side increases friction to prevent lateral displacement. The clamping assembly adjusts the angle of the clamping rod by interlocking the rotating rod and the sleeve, and achieves longitudinal fixation by fitting the top of the workpiece. The buffer assembly has a buffer protrusion at the end of the clamping rod, and has a built-in telescopic rod and spring to absorb impact, adjust pressure, avoid workpiece indentation and meet the requirements of high-precision processing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model; Figure 3 This is a schematic diagram of the clamping component structure of this utility model; Figure 4 This is a schematic diagram of the buffer component structure of this utility model.

[0014] In the diagram: Mounting base 1, Positioning base 2, Snap-fit ​​end 301, Snap-fit ​​protrusion 302, Rotating rod 401, Sleeve 402, Fixing rod 403, Clamping rod 404, Buffer protrusion 501, Telescopic rod 502, Spring 503. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Example 1: Please refer to Figures 1-2 A hot stamping positioning fixture for automotive injection molded parts includes a mounting base 1 and a positioning base 2. The positioning base 2 is fixedly mounted on the mounting base 1 and is mounted on a drive base. The mounting base 1 is driven by a drive device. The positioning base 2 is provided with a snap-fit ​​component, a clamping component, and a buffer component. The snap-fit ​​component is located at both ends of the positioning base 2, the clamping component is located on the side of the positioning base 2, and the buffer component is located on the clamping component. The snap-fit ​​end 301 in the snap-fit ​​assembly is fixedly installed at both ends of the top of the positioning seat 2. The snap-fit ​​end 301 holds the tooling. Snap-fit ​​protrusions 302 are evenly arranged on the inner side of the snap-fit ​​end 301 in the snap-fit ​​assembly. The snap-fit ​​protrusions 302 are in close contact with both ends of the tooling.

[0017] In use, first move the fixture to be hot stamped to the top of the positioning seat 2. Adjust the placement according to the end dimensions of the fixture, aligning the two ends of the fixture with the snap-fit ​​ends 301 on the top two ends of the positioning seat 2. Then, slowly lower the fixture until the two ends of the fixture are fully embedded in the clamping space of the snap-fit ​​ends 301. At this point, ensure that the bottom of the fixture is in close contact with the bearing surface of the positioning seat 2. The snap-fit ​​protrusions 302 evenly distributed on the inner side of the snap-fit ​​ends 301 will make full contact with the surfaces of the two ends of the fixture. The snap-fit ​​protrusions 302 not only increase the static friction between the fixture and the fixture, but also prevent... To avoid scratching the surface of the tooling, after the tooling is snapped and positioned, check whether there is any lateral looseness. If there is a slight offset, the position of the tooling can be finely adjusted until the snap-fit ​​protrusion 302 is fully in contact with both ends of the tooling. At this time, start the drive device. The drive device drives the mounting seat 1 to move along the preset trajectory on the drive seat. The mounting seat 1 simultaneously drives the positioning seat 2 and the snap-fit ​​tooling to be transferred to the processing area of ​​the hot stamping equipment. During the transfer, the snap-fit ​​component continues to play a lateral limiting role to prevent the tooling from lateral displacement due to vibration or inertia, providing a stable positioning basis for the precise clamping of the subsequent clamping components.

[0018] Example 2: Based on Example 1, please refer to... Figures 2-3 The rotating rod 401 in the clamping assembly is embedded in the sleeve 402. The sleeve 402 is fixedly mounted on the fixed rod 403. The fixed rod 403 is fixedly mounted on both ends of the positioning seat 2. The rotating rod 401 is driven to rotate by the driving assembly.

[0019] A clamping rod 404 is fixedly provided at the fixed end of the rotating rod 401 in the clamping assembly, and the clamping rod 404 is in close contact with the top of the tooling.

[0020] In use, after the tooling is snapped into place in Embodiment 1, the drive assembly of the clamping component is activated. Its output shaft is connected to the rotating rod 401 via a coupling, causing the rotating rod 401 to rotate around its own axis within the sleeve 402. The sleeve 402 is fixed to the fixed rod 403, which is then firmly connected to both ends of the positioning seat 2 by welding, ensuring the stability of the rotating rod 401 during rotation. As the rotating rod 401 rotates, the clamping rod 404 rotates and adjusts around the axis of the rotating rod 401. The operator can observe the position of the clamping rod 404 in real time through the control system. When the clamping rod 404 rotates to the position of the tooling... When the preset clamping position on the top of the fixture is parallel, the drive assembly is decelerated, causing the clamping rod 404 to slowly approach the top of the fixture. Once the clamping rod 404 contacts the top surface of the fixture, the drive assembly stops. At this time, the clamping rod 404 maintains its current posture under the locking action of the rotating rod 401, and fits tightly against the top of the fixture, thus achieving longitudinal clamping and fixing of the fixture. Through the synergistic action of the snap-fit ​​assembly and the clamping assembly, the fixture is fixed in all directions in the horizontal and vertical directions on the positioning seat 2. Even when the mounting seat 1 starts, stops, or changes speed, the fixture will not loosen or shift, ensuring the positioning accuracy during hot stamping processing.

[0021] Example 3: Based on Example 2, please refer to... Figures 3-4 The buffer protrusion 501 in the buffer assembly is fixedly installed at the end of the clamping rod 404. A telescopic rod 502 is fixedly installed inside the buffer protrusion 501, and a spring 503 is sleeved on the telescopic rod 502.

[0022] In use, during the process of the clamping rod 404 approaching the top of the tooling in Embodiment 2, the buffer protrusion 501 at the end of the clamping rod 404 first contacts the top of the tooling. As the clamping rod 404 continues to apply pressure, the buffer protrusion 501 is retracted into the clamping rod 404 by the reaction force of the tooling, which drives the telescopic rod 502 fixedly installed inside to retract synchronously. The spring 503 sleeved on the telescopic rod 502 is compressed due to the retraction of the telescopic rod. The elastic force generated by the spring 503 balances the clamping pressure, preventing the clamping rod 404 from putting excessive pressure on the tooling. When the tooling moves with the positioning seat 2 to When the hot stamping head is below, the drive device drives the mounting base 1 to continue moving, so that the tooling part and the hot stamping head are precisely fitted. The impact force generated at the moment of fitting will be transmitted to the buffer protrusion 501 through the tooling part. At this time, the spring 503 is further compressed to absorb the impact energy, and the telescopic rod 502 is further contracted to convert the impact force into the elastic potential energy of the spring, effectively mitigating the impact of rigid impact on the tooling part. The buffer assembly can automatically adjust the clamping pressure through the elastic deformation of the spring 503, so that the buffer protrusion 501 always contacts the top of the tooling part with appropriate pressure, preventing surface indentation or structural deformation caused by excessive pressure.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot stamping positioning fixture for automotive injection molded parts, comprising a mounting base (1) and a positioning base (2), wherein the positioning base (2) is fixedly mounted on the mounting base (1), the mounting base (1) is disposed on a drive base, and the mounting base (1) is driven by a drive device; Its features are: The device includes a snap-fit ​​assembly, a clamping assembly, and a buffer assembly. The snap-fit ​​assembly is located at both ends of the positioning seat (2), the clamping assembly is located on the side of the positioning seat (2), and the buffer assembly is located on the clamping assembly. The rotating rod (401) in the clamping assembly is embedded in the sleeve (402), the sleeve (402) is fixedly located on the fixed rod (403), the fixed rod (403) is fixedly located at both ends of the positioning seat (2), and the rotating rod (401) is driven to rotate by the driving assembly. A clamping rod (404) is fixedly located at the fixed end of the rotating rod (401) in the clamping assembly, and the clamping rod (404) is in close contact with the top of the tooling. A buffer protrusion (501) in the buffer assembly is fixedly located at the end of the clamping rod (404), and a telescopic rod (502) is fixedly installed inside the buffer protrusion (501), and a spring (503) is sleeved on the telescopic rod (502).

2. The hot stamping positioning fixture for automotive injection molded parts according to claim 1, characterized in that: The snap-fit ​​end (301) in the snap-fit ​​assembly is fixedly disposed on both sides of the top of the positioning seat (2), and the tooling is held in the snap-fit ​​end (301).

3. The hot stamping positioning fixture for automotive injection molded parts according to claim 2, characterized in that: The snap-fit ​​end (301) of the snap-fit ​​assembly is provided with snap-fit ​​protrusions (302) evenly arranged on the inner side, and the snap-fit ​​protrusions (302) are in close contact with the two ends of the tooling.

Images