Adjusting mechanism for lower die of bending machine

Abstract

The utility model discloses a lower die adjusting mechanism of a bending machine, which comprises a fixed lower die, a fixed lower die and a movable lower die, the fixed lower die comprises a fixed die base, an adjusting machining groove formed in the fixed die base, two lower forming die blocks movably arranged in the adjusting machining groove and a lower die opening formed between the two lower forming die blocks. The two groups of adjusting assemblies are arranged to correspond to the two lower forming modules respectively and form linkage with the two lower forming modules, and the adjusting assemblies are in stepless adjustment and are provided with self-locking structures; the control assembly is arranged to synchronously control the two adjusting assemblies to act and cooperate with the adjusting assemblies to control the two lower forming modules to synchronously move in the face-to-face direction or the back-to-back direction. The utility model has the following advantages and effects: stepless convenient adjustment of the size of the lower die orifice can be realized, so that the manual workload is reduced, the production efficiency of equipment is improved, and meanwhile, the equipment has better universal adaptability.

Description

Technical Field

[0001] The utility model relates to a bending machine, in particular to a lower die adjusting mechanism of the bending machine. Background Art

[0002] The bending principle of the bending machine is to control the bending angle by the depth (bending depth) of the upper mold pressing the sheet in the lower mold, or to press the workpiece into a workpiece with the same angle as the mold. The bending mold on the bending machine is composed of different parts. The shape of the object is mainly processed by changing the physical state of the molding material. According to different processing requirements, different molds often need to be replaced during the production process.

[0003] A Chinese patent with announcement number CN214556461U discloses a double-stage linkage CNC sheet metal bending machine, including a machine body, a fixed lower die arranged on the machine body, a movable plate slidably arranged on the machine body, a driving member for driving the movable plate to move, and a movable upper die arranged on the movable plate, wherein the fixed lower die includes a fixed die base and two lower forming modules, the fixed die base is provided with an adjustment processing groove, the two lower forming modules are movably arranged in the adjustment processing groove, a die opening is formed between the two lower forming modules, and at least one adjustment block cooperating with the adjustment processing groove for adjusting the die opening size between the two lower forming modules is provided on the opposite sides of the two lower forming modules, and a locking component for fixing the lower forming module is provided between each of the lower forming modules and the fixed die base.

[0004] The above patent adjusts the size of the die opening by changing the number of adjustment blocks between the lower forming module and the fixed die base, and then locks the adjusted position of the lower forming module by setting a locking component. However, this adjustment method is a step-by-step adjustment, which makes it unable to adapt to any bending angle requirements, making the versatility of the bending machine poor. In addition, large bending machines have longer molds. If the above structure is adopted, more sets of locking components need to be set, which inadvertently increases the amount of manual operation and actually reduces the production efficiency of the equipment. Utility Model Content

[0005] The purpose of the utility model is to provide a lower die adjustment mechanism for a bending machine, which can realize stepless and convenient adjustment of the size of the lower die opening, thereby reducing manual workload, improving equipment production efficiency and also making the equipment have better universal adaptability.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a lower die adjustment mechanism of a bending machine, comprising: a fixed lower die, which is configured to form a bending angle of a workpiece, the fixed lower die comprises a fixed die base, an adjustment processing groove formed in the fixed die base, two lower forming modules movably arranged in the adjustment processing groove, and a lower die opening formed between the two lower forming modules; two groups of adjustment components, which are configured to correspond to the two lower forming modules respectively and form a linkage therewith, the adjustment components are stepless adjustment and have a self-locking structure; a control component, which is configured to synchronously control the actions of the two groups of the adjustment components and cooperate with the adjustment components to control the two lower forming modules to move synchronously toward or away from each other.

[0007] By adopting the above technical solution, when the size of the lower die opening needs to be changed, the control component cooperates with the adjustment component to drive the two lower molding modules to move toward or away from each other, and the two lower molding modules after movement are used to adjust the size of the lower die opening, and the stepless adjustment and self-locking structure of the adjustment component are used to realize the stepless adjustment and locking functions between the two lower molding modules, so as to realize the convenient adjustment of the size of the lower die opening, reduce manual workload, improve equipment production efficiency, and also make the equipment have better universal adaptability.

[0008] It is further configured as follows: the adjustment component includes a plurality of turntables rotatably arranged on a fixed mold base and arranged along the length direction of the lower molding module, a linkage arm arranged on each turntable and reciprocatingly rotating with the turntable toward one side of the lower molding module and abutting against it to form a linkage, a linkage shaft rotatably arranged on the fixed mold base and extending along the length direction of the lower molding module, a linkage self-locking structure arranged between the linkage shaft and each turntable and forming a linkage self-locking structure of the two, and a clamping spring driving the two lower molding modules to move away from each other.

[0009] By adopting the above technical solution, the linkage shaft drives the turntable to rotate under the action of the linkage self-locking structure, and the rotating turntable drives the linkage arm to approach and resist the lower forming module, so as to realize the opposite movement between the two lower forming modules, and then cooperates with the set clamping spring to drive the two lower forming modules to move away from each other, so as to realize the reciprocating motion between the two lower forming modules.

[0010] It is further configured as follows: the linkage self-locking structure includes a worm fixedly arranged on the linkage shaft and an incomplete worm wheel meshing with the worm and arranged on the rotating disk.

[0011] By adopting the above technical solution, the linkage shaft drives the worm to rotate, and the engagement between the worm and the incomplete worm wheel drives the turntable to rotate and make the rotation have a self-locking function.

[0012] It is further configured as follows: the control component includes a pulley arranged on two linkage shafts, a synchronous belt sleeved on the pulley, and a driving motor driving one of the pulleys to rotate, and the two groups of incomplete worm gears on the adjustment components are arranged on the opposite sides of the two linkage shafts.

[0013] By adopting the above technical solution, the driving motor, synchronous belt and pulley cooperate to realize the synchronous driving of the two linkage shafts, and by setting the worm gear on the opposite side of the two linkage shafts, the synchronous movement can drive the two lower forming modules to realize synchronous movement towards or away from each other.

[0014] It is further configured to include an installation cavity formed on the fixed mold base for installing the adjustment component, and the fixed mold base is provided with a linkage hole corresponding to the position of each linkage arm, which connects the installation cavity and the adjustment processing groove and allows the linkage arm to pass through.

[0015] By adopting the above technical solution, the setting isolates the regulating component from the outside world to protect the regulating component, thereby extending the service life of the regulating component and making the setting structure more reliable.

[0016] It is further configured as follows: a sliding rod is fixedly provided on one of the lower forming modules, and a sliding hole for the sliding rod to pass through is provided on the other lower forming module; the clamping spring is sleeved on the sliding rod and is located between the two lower forming modules; the length direction of the sliding rod and the movement direction of the lower forming module are parallel to each other in the horizontal direction.

[0017] By adopting the above technical solution, the slide rod cooperates with the slide hole structure to realize the convenient installation of the clamping spring between the two lower forming modules. When the lower forming modules with different structures are replaced, the convenient installation of the clamping spring can also be realized.

[0018] It is further configured that: when the clamping spring is installed on the slide rod, the horizontal height of the clamping spring is located below the adjustment processing groove.

[0019] By adopting the above technical solution, this arrangement ensures that the installed clamping spring will not affect the processing space used to process the workpiece, avoiding structural interference and ensuring the feasibility of the structure.

[0020] In summary, the utility model has the following beneficial effects: the utility model can realize stepless and convenient adjustment of the size of the lower die opening, thereby reducing manual workload, improving equipment production efficiency and also making the equipment have better universal adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment;

[0022] Figure 2A partial cross-sectional view of an embodiment;

[0023] Figure 3 It is a structural schematic diagram of the linkage self-locking structure in the embodiment;

[0024] Figure 4 It is a partial exploded view of the embodiment.

[0025] In the figure: 1. Fixed mold base; 2. Adjustment processing groove; 3. Lower molding module; 4. Lower mold mouth; 5. Adjustment component; 51. Turntable; 52. Linkage arm; 53. Linkage shaft; 54. Linkage self-locking structure; 541. Worm; 542. Incomplete worm gear; 55. Clamping spring; 6. Control component; 61. Pulley; 62. Synchronous belt; 63. Drive motor; 7. Installation cavity; 8. Linkage hole; 9. Slide rod; 10. Slide hole. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] refer to Figures 1 to 4 A lower die adjustment mechanism for a bending machine includes: a fixed lower die, which is configured to form a bending angle of a workpiece, and the fixed lower die includes a fixed die base 1, an adjustment processing groove 2 formed in the fixed die base 1, two lower forming modules 3 movably arranged in the adjustment processing groove 2, and a lower die opening 4 formed between the two lower forming modules 3. Two groups of adjustment components 5 are configured to correspond to the two lower forming modules 3 respectively and form a linkage with them, and the adjustment components 5 are stepless adjustment and have a self-locking structure; a control component 6 is configured to synchronously control the actions of the two groups of adjustment components 5 and cooperate with the adjustment components 5 to control the two lower forming modules 3 to move synchronously toward or away from each other.

[0028] The adjustment assembly 5 includes a plurality of rotating disks 51 rotatably disposed on the fixed mold base 1 and arranged along the length direction of the lower molding module 3, a linkage arm 52 fixedly disposed on each rotating disk 51 and reciprocatingly rotating with the rotating disk 51 toward one side of the lower molding module 3 and abutting against it to form a linkage, a linkage shaft 53 rotatably disposed on the fixed mold base 1 and extending along the length direction of the lower molding module 3, a linkage self-locking structure 54 disposed between the linkage shaft 53 and each rotating disk 51 and forming a linkage self-locking of the two, and a pressing spring 55 driving the two lower molding modules 3 to move in opposite directions. The linkage self-locking structure 54 includes a worm 541 integrally disposed on the linkage shaft 53 and an incomplete worm wheel 542 meshing with the worm 541 and integrally disposed on the rotating disk 51.

[0029] The control assembly 6 includes two pulleys 61 respectively fixedly arranged on two linkage shafts 53, a synchronous belt 62 sleeved on the two pulleys 61, and a driving motor 63 driving one of the pulleys 61 to rotate. The incomplete worm gears 542 on the two adjustment assemblies 5 are arranged on the opposite sides of the two linkage shafts 53. The driving motor 63 is fixedly arranged on the fixed mold base 1 and the output shaft is fixedly connected to one of the pulleys 61.

[0030] It includes an installation cavity 7 formed on the fixed mold base 1 for installing the adjustment component 5. The adjustment component 5 is installed in the installation cavity 7. The fixed mold base 1 is provided with a linkage hole 8 corresponding to the position of each linkage arm 52, which connects the installation cavity 7 and the adjustment processing groove 2 and allows the linkage arm 52 to pass through.

[0031] Slide rods 9 are fixedly arranged at both ends of one of the lower forming modules 3, and slide holes 10 for the slide rods 9 to pass through are opened at both ends of the other lower forming module 3. There are two pressing springs 55, which are respectively mounted on the two slide rods 9 and located between the two lower forming modules 3. The length direction of the slide rod 9 and the movement direction of the lower forming module 3 are parallel to each other in the horizontal direction. When the pressing spring 55 is installed on the slide rod 9, the horizontal height of the pressing spring 55 is located below the adjustment processing groove 2.

[0032] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A lower die adjustment mechanism for a bending machine, characterized in that: include: A fixed lower die is arranged to form a workpiece bending angle, the fixed lower die comprising a fixed die base (1), an adjustment processing groove (2) formed in the fixed die base (1), two lower forming modules (3) movably arranged in the adjustment processing groove (2), and a lower die opening (4) formed between the two lower forming modules (3); two groups of adjustment components (5) are arranged to correspond to the two lower forming modules (3) respectively and form a linkage therewith, the adjustment components (5) are steplessly adjustable and have a self-locking structure; a control component (6) is arranged to synchronously control the actions of the two groups of adjustment components (5) and cooperate with the adjustment components (5) to control the two lower forming modules (3) to move synchronously towards or away from each other.

2. The lower die adjustment mechanism of the bending machine according to claim 1, characterized in that: The adjustment component (5) comprises a plurality of rotating disks (51) rotatably arranged on the fixed mold base (1) and arranged in an array along the length direction of the lower molding module (3), a linkage arm (52) arranged on each rotating disk (51) and reciprocatingly rotating with the rotating disk (51) toward one side of the lower molding module (3) and abutting against the rotating disk to form a linkage, a linkage shaft (53) rotatably arranged on the fixed mold base (1) and extending along the length direction of the lower molding module (3), a linkage self-locking structure (54) arranged between the linkage shaft (53) and each rotating disk (51) and forming a linkage self-locking structure of the two, and a clamping spring (55) for driving the two lower molding modules (3) to move in opposite directions.

3. The lower die adjustment mechanism of the bending machine according to claim 2, characterized in that: The linkage self-locking structure (54) comprises a worm (541) fixedly arranged on the linkage shaft (53) and an incomplete worm wheel (542) meshing with the worm (541) and arranged on the rotating disk (51).

4. The lower die adjustment mechanism of the bending machine according to claim 3, characterized in that: The control component (6) comprises a pulley (61) arranged on two linkage shafts (53), a synchronous belt (62) sleeved on the pulley (61), and a driving motor (63) driving one of the pulleys (61) to rotate. The incomplete worm gears (542) on the two sets of the adjustment components (5) are arranged on opposite sides of the two linkage shafts (53).

5. The lower die adjustment mechanism of the bending machine according to claim 2, characterized in that: It comprises an installation cavity (7) formed on the fixed mold base (1) and for installing the adjustment component (5); the fixed mold base (1) is provided with a linkage hole (8) corresponding to the position of each linkage arm (52) and connecting the installation cavity (7) and the adjustment processing groove (2) and for the linkage arm (52) to pass through.

6. The lower die adjustment mechanism of the bending machine according to claim 2, characterized in that: A slide bar (9) is fixedly provided on one of the lower forming modules (3), and a slide hole (10) for the slide bar (9) to pass through is provided on the other lower forming module (3). The retaining spring (55) is sleeved on the slide bar (9) and is located between the two lower forming modules (3). The length direction of the slide bar (9) and the movement direction of the lower forming module (3) are parallel to each other in the horizontal direction.

7. The lower die adjustment mechanism for a bending machine according to claim 6, characterized in that: When the pressing spring (55) is installed on the slide bar (9), the horizontal height of the pressing spring (55) is located below the adjustment processing groove (2).

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