Quick-change die positioning structure of universal clamping pin bending equipment

Abstract

The utility model relates to a quick-change die positioning structure of universal clamping pin bending equipment. The device comprises a lower template for mounting a lower die, at least two rows of roller groups which are symmetrically arranged on the lower template, are placed along the in-out direction of the die and are used for bearing the bending die, lower die pneumatic die locking components which are respectively arranged at two ends of the lower template and are used for quickly locking two ends of the lower die, and an upper template which is movably arranged above the lower template and is used for mounting an upper die, the upper die pneumatic die locking assemblies are arranged at the two ends of the upper die plate respectively and used for rapidly locking the two ends of the upper die; the die is convenient to take and place through the roller set, the lower die and the upper die can be rapidly installed on the lower die plate and the upper die plate respectively through the lower die pneumatic die locking assembly and the upper die pneumatic die locking assembly, and the die has the advantages of being easy to operate, convenient to install, safe, reliable, high in efficiency and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bending, in particular to a quick-change die positioning structure of general clamping leg bending equipment. BACKGROUND

[0002] The bending die is the core component of the bending equipment, and it is the execution element for realizing the bending of the workpiece. The bending die is generally designed in a customized manner. Different upper and lower dies need to be matched for different workpiece sizes. The bending production of complex workpieces requires frequent replacement of the bending die.

[0003] Although the patent (202210608575.6) of a multi-station automobile interior and exterior trim metal trim plate press-fitting equipment with replaceable dies applied by the unit before can replace the dies, it needs to repeatedly disassemble and fix the screws, which not only consumes time and effort, but also has high labor intensity and long die replacement time, thereby restricting the production efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects of the prior art and provides a quick-change die positioning structure of general clamping leg bending equipment, which can realize quick die replacement and.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a quick-change die positioning structure of general clamping leg bending equipment, which comprises a lower die plate for installing a lower die, at least two rows of symmetrical rollers arranged on the lower die plate and placed along the direction of die entry and exit for bearing the bending die, a lower die pneumatic locking assembly arranged at both ends of the lower die plate for quickly locking both ends of the lower die, an upper die plate movably arranged above the lower die plate for installing an upper die, and an upper die pneumatic locking assembly arranged at both ends of the upper die plate for quickly locking both ends of the upper die.

[0006] Preferably, each group of the lower die pneumatic locking assembly comprises a lower die locking plate arranged above the end of the lower die plate and placed along the direction of die entry and exit, at least two lower die locking cylinders vertically arranged at the bottom of the lower die plate and having the driving end penetrating through the lower die plate and connected with the lower die locking plate, and at least two lower die locking pins vertically arranged at the bottom of the lower die locking plate and capable of being correspondingly inserted into the lower die locking hole at the end of the lower die.

[0007] Preferably, a row of lower die side guide wheels parallel to the roller group is vertically arranged below the two lower die locking plates on the lower die plate; the lower die side guide wheel is located outside the lower die locking pin; each lower die side guide wheel comprises a lower support shaft vertically arranged on the lower die plate and a lower guide wheel sleeved on the lower support shaft.

[0008] Preferably, at least two limiting columns are arranged on the rear side of the lower die plate and spaced apart along the vertical direction of the roller group, for limiting the die, so that the lower die locking hole at the end of the lower die is accurately located directly below the lower die locking pin.

[0009] Preferably, the roller set comprises a plurality of eye-shaped rollers protruding from the surface of the lower die plate.

[0010] Preferably, each of the upper die pneumatic locking assembly comprises an upper die locking plate arranged below the upper die plate and placed along the feeding direction of the die, at least two upper die locking cylinders vertically arranged on the top of the lower die plate and having driving ends penetrating through the upper die plate and connected with the upper die locking plate, and at least two upper die locking pins vertically arranged on the top of the upper die locking plate and capable of being correspondingly inserted into the upper die locking holes on the end of the upper die.

[0011] Preferably, the upper die locking plate is provided with a row of rollers arranged in parallel with the roller set and protruding from the surface of the upper die locking plate.

[0012] Preferably, the upper die locking plate is vertically provided with a row of upper die side guide wheels arranged in parallel with the roller set; the upper die side guide wheels are located outside the upper die locking pins; each of the upper die side guide wheels comprises an upper supporting shaft vertically arranged on the lower die plate and an upper guide wheel sleeved on the upper supporting shaft.

[0013] By means of the above technical scheme, the utility model has the following advantages compared with the prior art:

[0014] The utility model discloses a die taking and placing device which comprises a lower die plate, an upper die plate and a roller set arranged between the lower die plate and the upper die plate. BRIEF DESCRIPTION OF DRAWINGS

[0015] The technical scheme of the utility model will be further described below with reference to the drawings:

[0016] ATTACHMENT Figure 1 It is a structure schematic view of the quick-change die positioning structure of the universal clamping leg bending equipment.

[0017] ATTACHMENT Figure 2 It is a structure schematic view of the lower die pneumatic locking assembly in the utility model.

[0018] ATTACHMENT Figure 3 It is a structure schematic view of the lower die seat part in the utility model.

[0019] ATTACHMENT Figure 4 It is a structure schematic view of the upper die pneumatic locking assembly in the utility model.

[0020] ATTACHMENT Figure 5 It is a working schematic view of the universal clamping leg bending equipment.

[0021] Wherein: 1, the lower die plate; 2, the roller group; 3, the lower die pneumatic locking assembly; 31, the lower die locking plate; 32, the lower die locking cylinder; 33, the lower die locking pin; 34, the lower die side guide wheel; 4, the upper die plate; 5, the upper die pneumatic locking assembly; 51, the upper die locking plate; 52, the upper die locking cylinder; 53, the upper die locking pin; 54, the roller; 55, the upper die side guide wheel; 6, the limiting column; 7, the lower die; 8, the upper die. DETAILED DESCRIPTION

[0022] The utility model will be made further detailed explanation in combination with the drawings and specific embodiment.

[0023] ATTACHMENT Figures 1-5 The quick-change die positioning structure of the universal pin bending equipment, comprising a lower die plate 1 for mounting a lower die 7, two rows of roller groups 2 symmetrically arranged on the lower die plate 1 and placed along the mold entry and exit direction for bearing the bending mold, a lower die pneumatic locking assembly 3 arranged at both ends of the lower die plate 1 respectively for quickly locking both ends of the lower die 7, an upper die plate 4 movably arranged above the lower die plate 1 for mounting an upper die 8, and an upper die pneumatic locking assembly 5 arranged at both ends of the upper die plate 4 respectively for quickly locking both ends of the upper die 8;

[0024] When working: the bending mold (the upper die 8 and the lower die 7 are stacked together) is placed on the lower die plate 1, and since the two rows of roller groups 2 are arranged on the lower die plate 1, the bending mold is easily pushed onto the lower die plate 1; after the bending mold is pushed to the appropriate position, both ends of the lower die 7 are quickly locked by the two groups of lower die pneumatic locking assemblies 3, and both ends of the upper die 8 are quickly locked by the two groups of upper die pneumatic locking assemblies 5, that is, the installation of the bending mold is completed, which is very quick and convenient.

[0025] Further, as shown in Figure 2 Each of the lower die pneumatic locking assemblies 3 comprises a lower die locking plate 31 arranged above the end of the lower die plate 1 and placed along the mold entry and exit direction, two lower die locking cylinders 32 vertically arranged at the bottom of the lower die plate 1 and having the driving end penetrating through the lower die plate 1 and connected with the lower die locking plate 31, and two lower die locking pins 33 vertically arranged at the bottom of the lower die locking plate 31 and capable of being correspondingly inserted into the lower die locking holes at the ends of the lower die 7.

[0026] After the bending mold is pushed to the appropriate position, the two lower die locking cylinders 32 simultaneously drive the lower die locking plate 31 to lower the two lower die locking pins 33, which are correspondingly inserted into the lower die locking holes at the ends of the lower die 7, thereby completing the quick installation of the lower die 7.

[0027] Further, as shown in Figure 3As shown, a row of lower mold side guide wheels 34 are vertically arranged below the two lower mold locking templates 31 on the lower template 1, and are placed parallel to the roller group 2; the lower mold side guide wheels 34 are located outside the lower mold locking pin 33; each lower mold side guide wheel 34 includes a lower support shaft vertically arranged on the lower template 1 and a lower guide wheel sleeved on the lower support shaft;

[0028] When the bending die is pushed onto the lower template 1, the guide wheels 34 on both sides of the lower die can provide a limiting and guiding function, thereby improving the die changing efficiency.

[0029] Furthermore, the roller assembly 2 includes multiple bullseye balls protruding from the surface of the lower template 1, allowing the mold to slide flexibly in all directions and reducing friction.

[0030] Furthermore, such as Figure 4 As shown, each set of upper mold pneumatic locking assembly 5 includes an upper mold locking plate 51 placed below the upper plate 4 and along the mold inlet / outlet direction, two upper mold locking cylinders 52 vertically arranged on the top of the lower plate 1 with their drive ends passing through the upper plate 4 and connected to the upper mold locking plate 51, and two upper mold locking pins 53 vertically arranged on the top of the upper mold locking plate 51 that can be inserted into the upper mold locking hole at the end of the upper mold 8.

[0031] Once the bending die is pushed to the appropriate position, the upper die locking platen 51 is driven by the two upper die locking cylinders 52, which in turn drive the two upper die locking pins 53 to rise and insert into the upper die locking holes at the ends of the upper die 8, thus completing the installation of the upper die 8.

[0032] Furthermore, such as Figure 4 As shown, the upper mold locking template 51 is provided with a row of rollers 54 that are placed parallel to the roller group 2 and protrude from the surface of the upper mold locking template 51. When picking up and putting down the mold, the rollers can reduce wear and thus improve the service life.

[0033] Furthermore, such as Figure 4 As shown, a row of upper mold side guide wheels 55 are vertically arranged on the upper mold locking plate 51 and placed parallel to the roller group 2; the upper mold side guide wheels 55 are located outside the upper mold locking pin 53 and can play the role of limiting and guiding, thereby improving the mold changing efficiency; each upper mold side guide wheel 55 includes an upper support shaft vertically arranged on the lower plate 1 and an upper guide wheel sleeved on the upper support shaft.

[0034] Furthermore, such as Figure 1 As shown, two limiting posts 6 are provided on the rear side of the lower mold plate 1, which are placed at intervals along the vertical direction of the roller group 2. They are used to limit the mold, so that the lower mold locking hole at the end of the lower mold 7 is accurately located directly below the lower mold locking pin 33, and at the same time, the upper mold locking hole at the end of the upper mold 8 is located directly above the upper mold locking pin 53, thereby achieving initial positioning and improving mold changing efficiency.

[0035] The above is only a specific application example of the present application, and does not constitute any limitation on the protection scope of the present application. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the present application.

Claims

1. A quick-change die positioning structure of a universal clamp leg bending apparatus, characterized by: The lower die plate is provided with a lower die for mounting, a roller set for bearing the bending die, a lower die pneumatic locking assembly for locking the two ends of the lower die, a upper die plate for mounting, a upper die pneumatic locking assembly for locking the two ends of the upper die.

2. The quick-change die positioning structure of the universal pin-bending apparatus according to claim 1, wherein: Each group of the lower die pneumatic locking assembly comprises a lower die locking plate arranged above the end of the lower die plate and placed along the feeding direction of the die, at least two lower die locking cylinders vertically arranged at the bottom of the lower die plate and having the driving end connected with the lower die locking plate through the lower die plate, and at least two lower die locking pins vertically arranged at the bottom of the lower die locking plate and capable of being inserted into the lower die locking hole of the end of the lower die.

3. The quick-change die positioning structure of the universal pin-bending apparatus according to claim 2, wherein: A row of lower die side guide wheels is vertically arranged below the two lower die locking plates on the lower die plate and placed in parallel with the roller set; the lower die side guide wheels are located outside the lower die locking pins; each of the lower die side guide wheels comprises a lower support shaft vertically arranged on the lower die plate and a lower guide wheel sleeved on the lower support shaft.

4. The quick-change die positioning structure of the universal pin-bending apparatus according to claim 1, wherein: The rear side of the lower die plate is provided with at least two limiting columns placed in parallel with the roller set and used for limiting the die so that the lower die locking hole of the end of the lower die is accurately located below the lower die locking pin.

5. The quick-change die positioning structure of the universal pin-bending apparatus according to claim 1, wherein: The roller set comprises a plurality of bull-eye balls protruding from the surface of the lower die plate.

6. The quick-change die positioning structure of the universal pin-bending apparatus according to any one of claims 1-5, characterized in that: Each group of the upper die pneumatic locking assembly comprises an upper die locking plate arranged below the upper die plate and placed along the feeding direction of the die, at least two upper die locking cylinders vertically arranged at the top of the lower die plate and having the driving end connected with the upper die locking plate through the upper die plate, and at least two upper die locking pins vertically arranged at the top of the upper die locking plate and capable of being inserted into the upper die locking hole of the end of the upper die.

7. The quick-change die positioning structure of the universal pin-bending apparatus according to claim 6, wherein: The upper die locking plate is provided with a row of rollers placed in parallel with the roller set and protruding from the surface of the upper die locking plate.

8. The quick-change die positioning structure of the universal pin-bending apparatus according to claim 6, wherein: A row of upper die side guide wheels is vertically arranged on the upper die locking plate and placed in parallel with the roller set; the upper die side guide wheels are located outside the upper die locking pins; each of the upper die side guide wheels comprises an upper support shaft vertically arranged on the lower die plate and an upper guide wheel sleeved on the upper support shaft.

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