A jig for assembling a foam mold

Abstract

The utility model relates to a foamed mould manufacturing technical field especially relates to a jig for foamed mould assembly, including work table, both ends of work table are all installed clamping assembly, and work table is provided with the power component of drive clamping assembly to the middle movement, install the controller on clamping assembly, and the side away from clamping assembly is connected with mounting bracket, and install two -way electric push -rod on mounting bracket, two -way electric push -rod is wired to the controller, and the push rod end of two -way electric push -rod front and back is all connected with the clamping plate, and the clamping plate end is towards work table middle part and passes clamping assembly, and the clamping plate end is provided with the extension component for adjusting the clamping width. Through two -way electric push -rod drive clamping plate to the center synchronous movement, the combination pressure sensor real -time detection foam contact pressure makes both sides clamping mechanism form force feedback closed -loop control, eliminates the initial mounting position deviation of foam on the fixture, ensures that the positioning attitude of two foams is completely centered before splicing.

Description

Technical Field

[0001] This utility model relates to the field of foam mold manufacturing technology, and in particular to a jig for assembling foam molds. Background Technology

[0002] In the manufacturing process of foam molds, easily processed foam materials are often used to create prototypes or transitional models. To ensure the accuracy of the final mold, these foam models often need to be precisely assembled from multiple independent foam blocks into a whole before subsequent processes. In this process, jigs play a crucial role. Their core function is to stably clamp single or multiple foam components and ensure that they achieve the relative positions and orientations required by the design during assembly, thereby achieving high-precision alignment and fixation.

[0003] To address the challenges of clamping and assembling large-scale mold foam models, a clamping fixture for automotive mold foam models (publication number CN210452468U) is proposed. This fixture divides the large foam model itself into two parts, which are processed on separate sub-clamps. In the subsequent assembly stage, each clamp holds a piece of foam, and then drives the sub-clamps to move towards the center, so that adjacent foam blocks approach each other and eventually align during the movement.

[0004] However, the initial positioning accuracy of the foam blocks on their respective clamps and the dynamic synchronization during the splicing process are difficult to guarantee perfectly. When two foam blocks to be spliced ​​are clamped and fixed by two independent clamps, the clamping positions of the foam blocks differ because the clamps themselves have no positional limitations. Consequently, the relative positions of the two foam blocks along the splicing direction cannot be precisely aligned. Therefore, when the two foam blocks are driven towards the center by the clamps and are about to contact and connect, this pre-existing positional deviation causes the edges of the two foam blocks to not precisely match, resulting in misalignment. Utility Model Content

[0005] To overcome the disadvantage of garment clip position deviation, this utility model provides a jig for assembling foam molds, aiming to solve the above-mentioned shortcomings.

[0006] A fixture for assembling foam molds includes a worktable with clamping assemblies mounted on both its left and right ends. The worktable is also equipped with a power assembly for driving the clamping assemblies to move towards the center. A controller is mounted on each clamping assembly. A mounting frame is connected to the opposite side of each clamping assembly. A bidirectional electric push rod is mounted on the mounting frame and wired to the controller. Clamping plates are connected to the push rod ends at both ends of the bidirectional electric push rod. The clamping plate ends face the center of the worktable and bypass the clamping assemblies. An extension assembly for adjusting the clamping width is provided at the clamping plate ends.

[0007] Furthermore, the extension assembly includes an adjusting screw, which is threadedly connected to the clamping plate. A guide rod is slidably connected inside the clamping plate. A connecting block is connected to the end of the adjusting screw. The end of the guide rod is fixedly connected to the contact plate. The connecting block is rotatably connected inside the contact plate. A pressure sensor is mounted on the contact plate facing the middle end of the clamping assembly. The pressure sensor is wiredly connected to the controller.

[0008] Furthermore, a protective housing is connected to the contact plate at the end away from the middle of the clamping assembly, and the protective housing is slidably connected to the clamping plate.

[0009] Furthermore, the end of the adjusting screw is fitted with an anti-slip sleeve.

[0010] Furthermore, the contact plate is connected to a sponge pad around the pressure sensor.

[0011] Furthermore, a laser rangefinder is installed on the side of the contact plate opposite to the pressure sensor, and the laser rangefinder is wired to the controller.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The clamping plate is driven to move synchronously towards the center by a bidirectional electric push rod. Combined with the real-time detection of foam contact pressure by a pressure sensor, the clamping mechanisms on both sides form a force feedback closed-loop control, eliminating the initial clamping position deviation of the foam on the fixture and ensuring that the positioning posture of the two foam pieces is completely centered before splicing.

[0014] 2. The distance between the contact plate and the clamping plate is monitored in real time by a laser rangefinder, and the data is fed back to the controller screen. This allows the operator to perform a visual symmetrical calibration when rotating the adjusting screw, ensuring that the two foam pieces maintain axial alignment as they move towards each other. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the installation structure of the mounting bracket and clamp of this utility model.

[0017] Figure 3 This is a schematic diagram of the installation structure of the adjusting screw and guide rod of this utility model.

[0018] Figure 4 This is an exploded view of the mounting structure of the contact plate and pressure sensor of this utility model.

[0019] In the attached diagram: 1. Workbench, 2. Clamping assembly, 3. Controller, 4. Mounting bracket, 5. Bidirectional electric push rod, 6. Clamping plate, 7. Adjusting screw, 8. Connecting block, 9. Guide rod, 10. Contact plate, 11. Pressure sensor, 12. Protective housing, 13. Anti-slip sleeve, 14. Sponge pad, 15. Laser rangefinder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: A jig for assembling foam molds, such as Figures 1-4 As shown, the assembly includes a workbench 1, a clamping component 2, a controller 3, a mounting bracket 4, a bidirectional electric push rod 5, a clamping plate 6, and an extension component. The workbench 1 is equipped with clamping components 2 at both ends, and the workbench 1 is provided with a power component that drives the clamping components 2 to move towards the center. The controller 3 is installed on the right clamping component 2 and is wired to the power component. The mounting bracket 4 is connected to the side of the clamping component 2 that is away from it. The bidirectional electric push rod 5 is installed on the mounting bracket 4 and is wired to the controller 3. The push rod ends at both ends of the bidirectional electric push rod 5 are connected to the clamping plate 6. The ends of the clamping plate 6 face the center of the workbench 1 and bypass the clamping components 2. The bidirectional synchronous drive eliminates the initial positioning deviation and ensures that the foam movement path is aligned. The ends of the clamping plate 6 are provided with an extension component for adjusting the clamping width.

[0022] like Figure 1 , Figure 3 and Figure 4 As shown, the extension assembly includes an adjusting screw 7, a connecting block 8, a guide rod 9, a contact plate 10, and a pressure sensor 11. The adjusting screw 7 is threadedly connected to the clamping plate 6, and the guide rod 9 is slidably connected within the clamping plate 6. The adjusting screw 7 and the guide rod 9 within the same clamping plate 6 are parallel to each other. The end of the adjusting screw 7 is connected to the connecting block 8, and the end of the guide rod 9 is fixedly connected to the contact plate 10. The connecting block 8 is rotatably connected within the contact plate 10. The pressure sensor 11 is installed on the side of the contact plate 10 facing the middle of the clamping assembly 2. The pressure sensor 11 transmits signals to the controller 3. Rotating the adjusting screw 7 pushes the contact plate 10 to translate along the guide rod 9, controlling the clamping width and ensuring that the extension distance on both sides is consistent.

[0023] like Figure 1 and Figure 3As shown, it also includes a protective housing 12. The protective housing 12 is connected to the middle end of the contact plate 10 away from the clamping assembly 2. The protective housing 12 is slidably connected to the clamping plate 6. When the contact plate 10 moves, it slides inside the clamping plate 6. The protective housing 12 prevents dust from entering the optical path of the laser rangefinder 15 and ensures the ranging accuracy.

[0024] like Figure 3 As shown, it also includes an anti-slip sleeve 13. The anti-slip sleeve 13 is fitted on one end of the adjusting screw 7 that is symmetrical to the connecting block 8, so as to stabilize the rotation of the adjusting screw 7 by increasing the coefficient of friction.

[0025] like Figure 4 As shown, it also includes a sponge pad 14. The contact plate 10 is connected to the pressure sensor 11 by the sponge pad 14. During the pre-contact stage, the sponge pad absorbs the impact force to avoid damage to the foam. After compression, it provides buffer protection for the pressure sensor 11.

[0026] like Figure 3 and Figure 4 As shown, it also includes a laser rangefinder 15. The laser rangefinder 15 is installed on the side of the contact plate 10 away from the pressure sensor 11. The laser rangefinder 15 is wired to the controller 3.

[0027] The worker places the foam block to be assembled in the working area of ​​clamping component 2. The controller 3 activates the bidirectional electric push rod 5, causing its front and rear push rods to retract synchronously, pulling the two clamping plates 6 horizontally towards the center. The clamping plates 6 drive the extension components at their ends to move horizontally, with the sponge pad 14 contacting the foam surface first. If one sponge pad 14 touches the foam first, its elastic deformation will push the foam to slightly slide on the surface of clamping component 2 until the other sponge pad 14 contacts the foam. Both sponge pads 14 undergo elastic deformation under pressure, causing the foam to fit tightly against the pressure sensor 11. The pressure sensor 11 detects the pressure value in real time. When the preset threshold is reached, it immediately sends a signal to the controller 3. The controller 3 instantly cuts off the power to the bidirectional electric push rod 5, stopping its movement and completing the centering of the foam. After repeating the above process to clamp another foam block, the controller 3 activates the clamping mechanism of clamping component 2 to fix the foam, and then activates the power component to push the two clamping components towards the center, completing the precise docking of the foam.

[0028] For foam combinations of different widths, the operator manually rotates the adjusting screw 7. The adjusting screw 7 moves back and forth along the clamping plate 6, causing the connecting block 8 to rotate. Simultaneously, the connecting block 8 rotates within the contact plate 10, which in turn drives the contact plate 10 to translate axially along the guide rod 9. The guide rod 9 constrains the axial translation of the contact plate 10, keeping it parallel to the clamping plate 6. The laser rangefinder 15 monitors the distance between the contact plate 10 and the clamping plate 6 in real time and feeds the data back to the controller 3 screen. When adjusting the symmetrical contact plates 10, the distance extended on both sides is ensured to be consistent based on the values ​​displayed by the laser rangefinder 15, thus dynamically adapting to foams of different widths.

[0029] After the foam connection is completed, the controller 3 releases the locking force of the clamping component 2, and the staff removes the splice. Then the clamping component 2 separates and resets along the guide rail of the workbench 1 to both sides. At the same time, the push rod of the bidirectional electric push rod 5 extends, pushing the clamping plate 6 and the extension component outward to the initial position, in preparation for the next round of operation.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A jig for assembling a foam mold, characterized by: The utility model provides a workbench, the workbench (1) both ends are equipped with clamping assembly (2), and the workbench (1) is provided with the power assembly of driving the clamping assembly (2) to the middle movement, the clamping assembly (2) is installed with controller (3), the clamping assembly (2) is connected with mounting bracket (4) to the side of separation, the mounting bracket (4) is installed with two -way electric push rod (5), two -way electric push rod (5) with controller (3) wired connection, the push rod end of two -way electric push rod (5) is connected with clamping plate (6) both ends, the clamping plate (6) end is towards the middle part of workbench (1) and passes through clamping assembly (2), the clamping plate (6) end is provided with the extension assembly for adjusting the clamping width.

2. The jig for assembling a foam mold according to claim 1, characterized by: The extension assembly includes an adjusting screw (7), the clamping plate (6) is threadedly connected with the adjusting screw (7), the clamping plate (6) is slidably connected with a guide rod (9), the adjusting screw (7) is connected with a connecting block (8), the guide rod (9) is fixedly connected with a contact plate (10), the connecting block (8) is rotatably connected in the contact plate (10), the contact plate (10) is installed with a pressure sensor (11) towards the middle end of the clamping assembly (2), and the pressure sensor (11) is wiredly connected with the controller (3).

3. The jig for assembling a foam mold according to claim 2, wherein: The contact plate (10) is connected with a protective shell (12) away from the middle end of the clamping assembly (2), and the protective shell (12) is slidably connected in the clamping plate (6).

4. The jig for assembling a foam mold according to claim 2, wherein: The end of the adjusting screw (7) is sleeved with an anti-skid sleeve (13).

5. The jig for assembling a foam mold according to claim 2, wherein: The contact plate (10) is connected with a sponge pad (14) around the pressure sensor (11).

6. The jig for assembling a foam mold according to claim 2, wherein: The contact plate (10) is installed with a laser range finder (15) away from the pressure sensor (11), and the laser range finder (15) is wiredly connected with the controller (3).

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