Quickly assembled and disassembled mold positioning tool

Abstract

The utility model relates to mould frock technical field, especially quick mould positioning frock of dismounting, its characterized in that, include: base, be provided with a plurality of slots on the base, the side wall of each slot is linked with the sliding slot extending along the first direction, the one end of sliding slot away from the slot is linked with the negative pressure cavity, a plurality of locking assemblies are set up one by one with the sliding slot, and the locking assembly includes the sliding block of slidably containing in the sliding slot and the first elastic member of providing to the sliding block and making it have the tendency of extending into the slot, one end of sliding block extends to the negative pressure cavity, and the other end is provided with the locking block, the bottom of lower mould is fixed with a plurality of corresponding and adaptive plugs, the bottom end face of each plug forms the guide inclined plane, and the side of plug is provided with the locking groove that is adapted with the locking block, the ejector assembly includes a plurality of second elastic members that are correspondingly set up in the bottom of a plurality of slots, the vacuum pump is linked with a plurality of negative pressure cavities through the connecting pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould frock technical field especially relates to a mould positioning frock of quick installation and disassembly. BACKGROUND

[0002] In the mould processing production process, mould replacement is the key procedure of guaranteeing the flexibility of production line, and its efficiency and safety directly influence overall production schedule and operation safety, at present, the fixing of mould and machine platform mostly adopts the mode of direct insertion of positioning pin, and realizes mould positioning through the interference fit of positioning pin and mounting hole, this mode can satisfy basic positioning demand when installing mould, but there are obvious limitations in the dismounting link.

[0003] The existing dismounting operation relies on artificial hammering on the positioning pin on the machine platform, and forces the positioning pin to separate from the mounting hole, this operation mode not only needs the close contact of operating personnel with the machine platform and mould, and the knocking strength completely relies on artificial experience control, if too light, cannot dismount smoothly, needs repeated knocking, if too heavy, causes the deformation of positioning pin, the wear of mould mounting hole, even causes personnel injury due to the accidental ejection of positioning pin, at the same time, artificial knocking is time-consuming and laborious, and a single set of mould replacement often needs multiple people to cooperate, seriously restricts production efficiency, and is difficult to adapt to the dismounting demand of moulds of different weights and specifications. CONTENT OF THE UTILITY MODEL

[0004] To solve the technical problems in the above background art, the utility model provides a mould positioning frock of quick installation and disassembly.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A mould positioning frock of quick installation and disassembly, characterized by comprising: A base, a plurality of insertion slots are formed in the base, a side wall of each insertion slot is communicated with a sliding groove extending in a first direction, and one end of the sliding groove away from the insertion slot is communicated with a negative pressure cavity; A plurality of locking assemblies are arranged one by one corresponding to the sliding grooves, the locking assembly comprises a sliding block slidably accommodated in the sliding groove and a first elastic member providing the sliding block with a tendency to extend into the insertion slot, one end of the sliding block extends into the negative pressure cavity, and the other end is provided with a locking block; A lower mould is fixed with a plurality of insertion pins corresponding to the insertion slots and matched with the insertion slots at the bottom, a guide inclined surface is formed at the bottom end face of each insertion pin, and a locking groove matched with the locking block is formed at the side of the insertion pin; An ejection assembly comprises a plurality of second elastic members arranged corresponding to the bottoms of the plurality of insertion slots, and the second elastic member is used for providing the inserted insertion pin with a thrust force away from the bottom of the insertion slot; A vacuum pump is communicated with the plurality of negative pressure cavities through a connecting pipe. The insertion direction of the pin is the second direction, which intersects with the first direction.

[0006] Furthermore, the locking block is a trapezoidal protrusion formed at the end of the slider, and the locking groove is a trapezoidal groove that matches the shape of the trapezoidal protrusion.

[0007] Furthermore, the guide ramp is used to contact and press against the ramp at the upper end of the trapezoidal protrusion when the pin is inserted.

[0008] Furthermore, in the locked state, the lower surface of the trapezoidal protrusion forms a first load-bearing plane, and the lower surface of the trapezoidal groove forms a second load-bearing plane; under the pushing force of the second elastic member, the first load-bearing plane and the second load-bearing plane are tightly fitted together.

[0009] Furthermore, the first elastic element is a compression spring, which is sleeved on the slider, and its two ends respectively abut against the inner wall of the slider and the groove near the negative pressure cavity.

[0010] Furthermore, the connecting pipe includes a main pipeline connected to the vacuum pump and multiple branch pipes branching from the main pipeline and communicating with each of the multiple negative pressure chambers.

[0011] Furthermore, the second elastic element is a disc spring.

[0012] Compared with the prior art, the beneficial effects of this utility model are: Compared with existing technologies, this utility model replaces traditional manual striking operations by combining mechanical structure with negative pressure control, significantly improving safety and avoiding the risk of direct collisions between personnel and the machine or mold, as well as the risk of positioning pins popping out. Simultaneously, during installation, pressing the mold automatically locks it through the cooperation of the elastic element and locking block; during disassembly, activating the vacuum pump allows for rapid ejection, enabling a single person to complete the operation and greatly improving mold replacement efficiency. Furthermore, the vacuum pump's negative pressure and the elastic element's pushing force can be flexibly adjusted according to mold specifications, preventing component damage due to uncontrolled force. The mating structure of the locking block and locking groove, along with the pre-tightening force of the elastic element, ensures the stability of the mold during operation and improves processing accuracy. Additionally, the number and position of slots and pins can be adapted to molds of different sizes, and the elastic element parameters can meet the needs of molds of different weights, demonstrating strong versatility. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the quick-installation and disassembly mold positioning fixture proposed in this utility model. Figure 2 This is a cross-sectional view of the quick-assembly and disassembly mold positioning fixture proposed in this utility model; Figure 3The utility model provides a quick installation and disassembly mould positioning tool's structure schematic diagram under the dismounting state is shown in the figure, Figure 4 The utility model discloses Figure 3 The utility model discloses

[0014] In the figure: 1 - base, 101 - negative pressure chamber, 102 - sliding slot, 103 - insertion slot, 2 - lower mould, 3 - connecting pipe, 4 - bolt, 401 - trapezoidal groove, 402 - guide inclined plane, 5 - first elastic part, 6 - sliding block, 601 - trapezoidal convex, 7 - second elastic part. Specific embodiments

[0015] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0016] As Figures 1-4 The utility model provides a quick installation and disassembly mould positioning tool, it is characterized in being including: Base 1 is set up with a plurality of insertion slots 103 on the base 1, and the sidewall of each insertion slot 103 is communicated with the sliding slot 102 extending along the first direction, and the end of the sliding slot 102 away from the insertion slot 103 is communicated with the negative pressure chamber 101; A plurality of locking assemblies are arranged one by one corresponding to the sliding slot 102, the locking assembly includes the sliding block 6 slidably accommodated in the sliding slot 102 and the first elastic part 5 providing the sliding block 6 with the tendency of extending into the insertion slot 103, one end of the sliding block 6 extends into the negative pressure chamber 101, and the other end is provided with a locking block; The lower mould 2 is fixed with a plurality of bolts 4 corresponding to the insertion slot 103 and adapted at the bottom, and the bottom end face of each bolt 4 is formed with a guide inclined plane 402, and the side of the bolt 4 is provided with a locking groove adapted to the locking block; The ejection assembly includes a plurality of second elastic parts 7 corresponding to the bottom of a plurality of insertion slots 103, and the second elastic part 7 is used to provide the inserted bolt 4 with a thrust force away from the bottom of the insertion slot 103; The vacuum pump is communicated with a plurality of negative pressure chambers 101 through the connecting pipe 3; The insertion direction of the bolt 4 is the second direction, and the second direction intersects with the first direction.

[0017] In general, the base 1 is provided with four evenly distributed insertion slots 103, the sliding slot 102 is provided in the horizontal direction, the first elastic member 5 is a common cylindrical spring, the second elastic member 7 is a cylindrical spring, and the connecting pipe 3 is a single through pipe (simultaneously connecting multiple negative pressure cavities 101).

[0018] During installation, the insertion pin 4 of the lower mold 2 is vertically inserted into the insertion slot 103, the bottom guide inclined surface 402 of the insertion pin 4 extrudes the locking block, the sliding block 6 is pushed to slide to the right and compresses the first elastic member 5; when the locking slot moves to the position of the locking block, the first elastic member 5 resets, and the locking block is clamped into the locking slot; the second elastic member 7 is compressed to generate a pushing force, so that the locking block is attached to the inner wall of the locking slot, and the locking is completed; during disassembly, the vacuum pump is started, the negative pressure cavity 101 generates negative pressure to adsorb the sliding block 6 to slide to the right, the first elastic member 5 is compressed, and the locking block is separated from the locking slot; the second elastic member 7 releases potential energy, and the insertion pin 4 is pushed out upward, and the disassembly is completed.

[0019] By realizing the mechanical locking and ejection of the mold, the safety risk of manual knocking is solved, and the operation efficiency is improved.

[0020] As shown in the drawings, Figures 3-4 In this embodiment, the locking block is a trapezoidal protrusion 601 formed at the end of the sliding block 6, and the locking slot is a trapezoidal slot 401 matched with the shape of the trapezoidal protrusion 601.

[0021] Specifically, the locking block is an isosceles trapezoidal protrusion 601 (short upper base and long lower base) formed at the end of the sliding block 6, and the locking slot is a trapezoidal slot 401 matched with the shape of the trapezoidal protrusion 601, and the contact surface gap between the two is ≤0.02mm.

[0022] Compared with a triangle, the contact area of a trapezoid is increased, the contact stress is uniformly distributed, and local wear phenomenon is avoided; the trapezoidal structure has a self-centering function, automatically corrects the installation deviation of the insertion pin 4, and the positioning accuracy is improved; the anti-disengagement performance is enhanced, the vertical load during mold operation cannot push the locking block to disengage, and the stability is significantly improved.

[0023] As shown in the drawings, Figures 3-4 In this embodiment, the guide inclined surface 402 is used to contact and extrude the inclined surface at the upper end of the trapezoidal protrusion 601 when the insertion pin 4 is inserted.

[0024] Specifically, the inclination angle of the guide inclined surface 402 at the bottom of the insertion pin 4 is consistent with the angle of the inclined surface at the upper end of the trapezoidal protrusion 601 and the guide inclined surface 402, and the contact surfaces of the two are polished.

[0025] Through surface contact instead of point contact, the friction when the latch 4 is inserted is reduced, no additional force is needed to press, and the installation is smoother; the fitting angle allows the extrusion force to be efficiently transmitted in the horizontal direction, the sliding resistance of the slider 6 is reduced, and jamming is avoided; polished contact surfaces reduce wear and prolong the service life of the components.

[0026] As shown in the drawings, Figure 2 In this embodiment, in the locked state, the lower surface of the trapezoidal protrusion 601 constitutes a first force-bearing plane, and the lower surface of the trapezoidal groove 401 constitutes a second force-bearing plane; under the thrust of the second elastic member 7, the first force-bearing plane closely adheres to the second force-bearing plane.

[0027] Specifically, the lower surface of the trapezoidal protrusion 601 is a horizontal first force-bearing plane, and the lower surface of the trapezoidal groove 401 is a horizontal second force-bearing plane, which are completely adhered in the locked state.

[0028] When the mold is working, the vertical load is evenly transmitted through the force-bearing planes, avoiding deformation caused by the lateral torque of the locking block; gapless adhesion eliminates the slight movement of the mold, improving the size precision of the processed parts; and the relative friction between the locking block and the locking groove is reduced, prolonging the maintenance cycle.

[0029] As shown in the drawings, Figures 2-4 In this embodiment, the first elastic member 5 is a compression spring, which is sleeved on the slider 6 and abuts against the inner wall of the slide groove 102 near the negative pressure cavity 101 at both ends.

[0030] Specifically, the first elastic member 5 is a spring steel compression spring, which is sleeved on the shaft shoulder of the slider 6 and abuts against the shaft shoulder of the slider 6 and the limiting table of the slide groove 102 at both ends. The pre-compression amount can be adjusted by the position of the limiting table.

[0031] The spring steel compression spring has stable elastic modulus and no fatigue deformation under repeated compression, with high reset reliability; the pre-compression amount can be adjusted to meet the locking needs of molds of different weights, enhancing the versatility; the compact sleeve installation structure reduces the processing difficulty of the slide groove 102 and production costs.

[0032] As shown in the drawings, Figures 1-3 In this embodiment, the connecting pipe 3 includes a main pipe connected to the vacuum pump and a plurality of branch pipes branched from the main pipe and in one-to-one communication with a plurality of negative pressure cavities 101.

[0033] Specifically, the connecting pipe 3 includes a main pipe and four branch pipes. The main pipe is connected to the vacuum pump, and the branch pipes are branched from the main pipe through a three-way joint. Each branch pipe corresponds to one negative pressure cavity 101 and is provided with an independent adjusting valve.

[0034] Through uniform transmission of negative pressure, the four locking assemblies act synchronously, avoiding the disassembly jam caused by the single locking block not being separated; the independent valve can adjust the adsorption force of the single negative pressure cavity 101, adapting to the force difference of different positions of the mold; the sealing joint + branch pipeline design further reduces the negative pressure leakage rate and improves the adsorption reliability.

[0035] As shown in Figures 3-4 In the embodiment, the second elastic member 7 is a disc spring.

[0036] Specifically, the second elastic member 7 adopts a 2-piece stacked disc spring, is embedded in the groove at the bottom of the slot 103, and the upper end is in contact with the bottom of the bolt 4 through a stainless steel pad.

[0037] The disc spring has higher bearing capacity than the ordinary cylindrical spring, stable thrust force, and is suitable for heavy load molds; the number of stacked pieces can be adjusted to adapt to the ejection requirements of molds of different weights.

[0038] Of course, for those skilled in the art, the utility model is not limited to the details of the above-mentioned exemplary embodiments, but also includes the same or similar structures that can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be considered as limiting the claims involved.

[0039] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

[0040] The technical, shape and structure parts not described in detail in the utility model are known technologies.

Claims

1. A quick-assembly and disassembly mold positioning fixture, characterized in that, include: The base (1) has multiple slots (103) provided on it. Each slot (103) has a side wall connected to a sliding groove (102) extending in a first direction. The end of the sliding groove (102) away from the slot (103) is connected to a negative pressure chamber (101). Multiple locking components are provided in a one-to-one correspondence with the slide groove (102). Each locking component includes a slider (6) slidably accommodated in the slide groove (102) and a first elastic element (5) that provides the slider (6) with a tendency to extend into the slot (103). One end of the slider (6) extends into the negative pressure chamber (101), and the other end is provided with a locking block. The lower mold (2) has multiple pins (4) fixed at its bottom that correspond one-to-one with and are adapted to the slot (103). Each pin (4) has a guide slope (402) formed on its bottom end face. The side of the pin (4) is provided with a locking groove adapted to the locking block. The ejection assembly includes a plurality of second elastic members (7) correspondingly disposed at the bottom of the plurality of slots (103), the second elastic members (7) being used to provide a pushing force away from the bottom of the slots (103) to the inserted pin (4); A vacuum pump, which is connected to a plurality of the negative pressure chambers (101) via a connecting pipe (3); The insertion direction of the pin (4) is the second direction, which intersects with the first direction.

2. The quick-assembly and disassembly mold positioning fixture according to claim 1, characterized in that, The locking block is a trapezoidal protrusion (601) formed at the end of the slider (6), and the locking groove is a trapezoidal groove (401) that matches the shape of the trapezoidal protrusion (601).

3. The quick-assembly and disassembly mold positioning fixture according to claim 2, characterized in that, The guide ramp (402) is used to contact and press against the ramp at the upper end of the trapezoidal protrusion (601) when the pin (4) is inserted.

4. The quick-assembly and disassembly mold positioning fixture according to claim 2 or 3, characterized in that, In the locked state, the lower surface of the trapezoidal protrusion (601) forms a first bearing plane, and the lower surface of the trapezoidal groove (401) forms a second bearing plane; under the pushing force of the second elastic member (7), the first bearing plane and the second bearing plane are closely attached.

5. The quick-assembly and disassembly mold positioning fixture according to claim 2, characterized in that, The first elastic element (5) is a compression spring, which is sleeved on the slider (6), and its two ends respectively abut against the inner wall of the slider (6) and the groove (102) near the negative pressure cavity (101).

6. The quick-assembly and disassembly mold positioning fixture according to claim 1, characterized in that, The connecting pipe (3) includes a main pipeline connected to the vacuum pump and multiple branch pipes branching from the main pipeline and communicating with each of the multiple negative pressure chambers (101).

7. The quick-assembly and disassembly mold positioning fixture according to claim 1, characterized in that, The second elastic element (7) is a disc spring.

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