Positioning device and positioning method for metal piece positioning die

Abstract

The application discloses a positioning device of a metal piece positioning mold, which comprises a carrier, a pushing assembly installed on the carrier and a positioning assembly installed on the carrier, the positioning assembly comprises a fixed block fixed on the carrier, the fixed block is provided with sliding grooves penetrating through front and back surfaces of the fixed block, the positioning assembly further comprises a positioning block received in the sliding grooves and used for placing a metal ring and a spring located on a front end surface of the positioning block and abutting against the positioning block, and the fixed block is provided with a blocking part extending transversely above the positioning block. The metal ring can be placed in a larger space, the metal ring can be appropriately deflected by a certain angle, and the metal ring can be sleeved into the sliding block.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic injection molding, in particular to a positioning device and positioning method of a metal part positioning mold. BACKGROUND

[0002] The development of small electronic products is largely due to the technology of molding metal and plastic parts through injection molding molds, thereby changing the original assembly method, making the electronic product parts smaller and more accurate in size.

[0003] For integrally molded products, how to effectively place the metal part in the mold to ensure accurate positioning of the metal part in the mold is an important factor in product quality. In the prior art, the metal part is directly placed in the mold, and then molded. This requires a recess to be formed in the mold, and the metal part is placed in the recess by clamping jaws, or the annular metal part is sleeved on the support column in the mold. Since the sleeved support column and the inner size of the annular metal part are very close, it is easy to cause inaccurate sleeving and the condition of not being able to be sleeved, which causes the molding to be unable to be completed.

[0004] Therefore, in view of the above problems, it is necessary to provide a metal ring positioning mold and positioning method positioning device to overcome the above problems. SUMMARY

[0005] The present application provides a positioning device and positioning method of a metal part positioning mold, which improves the positioning accuracy of the metal ring and improves the production efficiency.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a positioning device of a metal part positioning mold, comprising a carrier, a pushing assembly mounted on the carrier, and a positioning assembly mounted on the carrier, the pushing assembly comprising a pushing cylinder fixed to the carrier, a guide table with a guide groove fixed to the carrier, and a pushing block accommodated in the guide groove and used for connecting a mold slider, the pushing block being connected with the pushing cylinder, the positioning assembly comprising a fixed block fixed to the carrier, the fixed block having a sliding groove penetrating through the front and rear surfaces thereof, the positioning assembly further comprising a positioning block accommodated in the sliding groove and used for placing a metal ring, and a spring located at the front end surface of the positioning block and abutting against the positioning block, the fixed block having a blocking portion extending transversely above the positioning block.

[0007] The positioning block comprises a placing surface recessed downward from the upper surface thereof and a protruding portion protruding upward from one side of the placing surface, and the blocking portion is transversely located above the placing surface.

[0008] The front surface of the blocking portion is located rearward of the front surface of the placing surface, and the blocking portion and the protruding portion form a perpendicular included angle.

[0009] The positioning block further comprises a trumpet-shaped recess formed at the rear end of the protruding portion and downwardly recessed from the protruding portion, and the surface of the protruding portion is located rearward of the trumpet-shaped recess.

[0010] The pushing block has a pair of clamping grooves recessed inwardly from both sides thereof, the rear end of the mold slider is provided with a pair of clamping hooks respectively accommodated in the clamping grooves, the size of the clamping grooves is greater than that of the clamping hooks, and the clamping hooks and the clamping grooves are kept in gaps.

[0011] To achieve the above object, the application further provides a positioning method of a metal piece positioning mold.

[0012] The pushing force of the pushing cylinder is released, a compression spring is used to abut against the positioning block, the pushing cylinder and the positioning block drive the mold slider to retreat backward, and the positioning block is pushed to the initial position.

[0013] Compared with the prior art, the positioning device and the positioning method of the metal piece positioning mold have the following beneficial effects: the positioning block can slide, the mold slider and the positioning block do not need to be avoided, the mold slider pushes the positioning block to move forward first, the distance between the end of the placement surface of the metal ring and the blocking portion can be set to be very wide, the larger space can be used to place the metal ring, the metal ring can be appropriately deflected by a certain angle, and the metal ring can be sleeved into the slider. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 FIG. 1 is a perspective view of a metal piece positioning mold positioning device according to the application;

[0015] Figure 2 FIG. 2 is a perspective view of a metal piece positioning mold positioning device according to the application;

[0016] Figure 3 FIG. 3 is a perspective view of a metal piece positioning mold positioning device according to the application; Figure 2 FIG. 4 is a perspective view of a part of a metal piece positioning mold positioning device according to the application;

[0017] Figure 4 FIG. 5 is a perspective view of a pushing assembly and a positioning assembly of a metal piece positioning mold positioning device according to the application; Figure 3 FIG. 6 is another perspective view of a pushing assembly and a positioning assembly of a metal piece positioning mold positioning device according to the application;

[0018] Figure 5 FIG. 7 is a perspective view of a pushing assembly and a positioning assembly of a metal piece positioning mold positioning device according to the application; and Figure 2Pushing assembly and positioning assembly of the positioning device of the metal piece positioning mold are shown in top view.

[0019] Figure 6 For Figure 2 The side view of the positioning device of the metal piece positioning mold is shown. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0021] Please refer to Figures 1 to 6 The present application provides a positioning device of a metal piece positioning mold, which is used for sleeving a metal ring 10 and a plate-shaped metal block 30 in a mold sliding block 20, and then conveying the whole mold sliding block 20 into a mold. The positioning device comprises a carrier 1, a plurality of pushing assemblies 2 installed on the carrier 1, and a plurality of positioning assemblies 3 installed on the carrier 1. Each pushing assembly 2 corresponds to one positioning assembly 3.

[0022] The positioning device of the metal piece positioning mold further comprises a mechanical arm for feeding the metal piece into the mold. The feeding mode of the mechanical arm is the prior art, which will not be described in detail here. The metal piece includes a metal ring and a plate-shaped metal block.

[0023] As Figure 1 The metal ring 10 comprises a center hole 101 located in the middle position and a ring-shaped part 102 surrounding the center hole 101.

[0024] The carrier 1 has a planar table 11, and the pushing assembly 2 is installed on the table 11.

[0025] In combination Figures 2 to 5As shown, the pushing assembly 2 comprises a pushing cylinder 21 fixed on the carrier 1, a guide table 22 with a guide groove 221 fixed on the carrier 1, and a pushing block 23 received in the guide groove 221. The pushing cylinder 21 is connected with the pushing block 23, and the pushing block 23 can reciprocate by the pushing cylinder 21. The plastic molding die slider is placed at the front end of the guide groove 221, and the rear end of the plastic molding die slider is buckled with the pushing block 23, so that when the pushing cylinder 21 pushes the pushing block 23 forward, the plastic molding die slider can move forward. The pushing block 23 has a pair of clamping grooves 231 recessed inward from both sides thereof, and the rear end of the die slider 20 is provided with a pair of clamping hooks 201 which can be clamped in the clamping grooves 231. The size of the clamping grooves 231 can be larger than the size of the clamping hooks 201, and the clamping hooks 201 and the clamping grooves 231 are kept in clearance, so as to ensure that the die slider 20 can smoothly put the clamping hooks 201 into the clamping grooves 231 from top to bottom.

[0026] The guide table 22 is fixed with a cover plate 24, which prevents the pushing block 23 from tilting and promotes the smooth sliding of the pushing block 23 in the guide groove 221, while limiting the excessive backward sliding of the pushing block 23.

[0027] The die slider 20 further comprises a boss 202 protruding from the front end thereof, which is used to pass through the center hole 101 of the metal ring 10, so as to ensure that the metal ring 10 is smoothly sleeved on the boss 202.

[0028] The positioning assembly 3 comprises a fixed block 31 fixed on the carrier 1, which has a pair of sliding grooves 311 penetrating through the front and rear surfaces thereof, and further comprises a positioning block 32 received in the sliding groove 311, and the metal ring 10 is placed on the positioning block 32.

[0029] The pair of positioning blocks 32 are oppositely arranged and respectively received in the sliding grooves 311. When the rear end surface of the positioning block 32 is subjected to a rearward pushing force, the positioning block 32 moves rearward along the sliding groove 311. The positioning assembly 3 further comprises a spring 33 located at the front end surface of the positioning block 32 and a mounting block 34. The mounting block 34 is fixed on the carrier 1, and the spring 33 is located between the positioning block 32 and the mounting block 34, and the two ends thereof abut against the positioning block 32 and the mounting block 34 respectively. When the spring 33 is in free state, it applies a pushing force to the mounting block 34 in the direction of the pushing assembly 2.

[0030] The positioning block 32 comprises a placement surface 321 recessed downward from the upper surface thereof and a protruding portion 322 protruding upward from one side of the placement surface 321. The fixed block 31 further comprises a blocking portion 312 extending transversely from the upper surface thereof, which is located vertically above the placement surface 321. The front surface of the blocking portion 312 is located rearward of the front surface of the placement surface 321. The blocking portion 312 and the protruding portion 322 form a vertical included angle.

[0031] The positioning block 32 further comprises a trumpet mouth 323 formed by concave downward from the rear end of the protruding part 322. The surface of the protruding part 322 is behind the trumpet mouth 323. The trumpet mouth 323 is formed to make the width of the placement surface 321 larger, facilitating the placement of the metal ring 10.

[0032] The positioning block 32 further comprises a resisting part 324 extending from the rear end surface thereof. The resisting part 324 is misaligned with the boss 202. When the mold slider 20 is forced to move forward, the resisting part 324 abuts against the front end surface of the mold slider 20.

[0033] In operation, the metal ring 10 is placed on the placement surface 321 at the trumpet mouth 323 by the gripper of a mechanical arm, with the center hole 101 of the metal ring 10 facing the boss 202 of the mold slider 20. In theory, the metal ring 10 should face the boss 202 directly, but due to the execution error of the gripper of the mechanical arm, the metal ring 10 may be slightly deflected by a very small angle.

[0034] The gripper of another mechanical arm places the mold slider 20 at the front end of the pushing block 23, with the catch 201 of the mold slider 20 located in the clamping groove 231 of the pushing block 23. The pushing cylinder 21 is started to push the pushing block 23 forward, which drives the mold slider 20 to move forward, and the mold slider 20 pushes the positioning block 32 to slide forward, and the metal ring 10 moves backward with the positioning block 32 until the blocking part 312 blocks the metal ring 10. Since the blocking part 312 and the protruding part 322 form a perpendicular angle, the slightly deflected metal ring 10 is corrected to face the boss 202 directly. The pushing cylinder 21 drives the mold slider 20 and the positioning block 32 to move forward, while the compression spring 33 is compressed, and the metal ring 10 stops moving until the metal ring 10 is sleeved on the boss 202. The pushing cylinder 21 is released, and the mold slider 20 is driven backward by the pushing cylinder 21 and the positioning block 32 driven by the compression spring 33, and the positioning block 32 is pushed to the initial position.

[0035] The catch 201 and the clamping groove 231 are also relatively loose. The mold slider 20 with the metal ring 10 mounted thereon is sucked upward by a suction cup of a mechanical arm, and the mold slider 20 is inserted into a mold from the rear of the mold. The metal ring 10 can be placed in a designated position of the mold, and then injection molding is performed.

[0036] The mold slider in the mold is taken out, the metal ring 10 is sleeved first, and then placed in the mold, so that the metal ring 20 can be accurately and conveniently placed in the designated position.

[0037] The positioning device utilizes the slidable positioning block 321, so that the placement surface 321 behind the blocking part 312 has a larger space for placing the metal ring 10. If the positioning block 321 is not slidable, in order to avoid the positioning block 32 in front of the mold slider 20, the metal ring 10 is directly sleeved into the positioning block 321, so that the space of the placement surface for placing the metal ring 10 is reduced, which is not convenient for the operation of the mechanical arm.

[0038] The positioning device of the metal part positioning mold of the present application utilizes the slidable positioning block 321, so that the mold slider 20 pushes the positioning block 32 to move forward first, so that the distance between the end of the placement surface 321 of the placement metal ring 10 and the blocking part 312 can be set to a very wide distance, thereby satisfying a larger space for placing the metal ring, and the metal ring can be appropriately deflected by a certain angle, and can also be sleeved into the slider 20.

[0039] The positioning device of the metal part positioning mold of the present application is provided with a plurality of pushing assemblies 2 and positioning assemblies 3; during mold forming, the fixed metal ring is circulated to ensure the forming efficiency.

[0040] Reference Figure 6 As shown, the positioning device of the metal part positioning mold further comprises a positioning table 41 fixed on the carrier table 1, a pair of positioning reference surfaces 42 located on the side of the positioning table 41, and a pair of clamping assemblies 5 located on the other side of the positioning table 41 and corresponding to the positioning reference surfaces 42.

[0041] The positioning table 41 is used for positioning the plate-shaped metal block 30, and then placing the plate-shaped metal block 30 into the mold.

[0042] The positioning reference surfaces 42 are two, which are used as the X and Y direction positioning references of the product.

[0043] The clamping assembly 5 is fixed on the rotating shaft (not shown) of the positioning table 41 or the carrier table 1, the positioning block 52 is sleeved on the rotating shaft, the pushing cylinder 53 is installed below the carrier table 1, and the pushing block 54 is fixed on the pushing cylinder 53. The rotating shaft is sleeved with a torsion spring (not shown), and the torsion spring (not shown) slightly inclines the positioning reference surface 42 on the positioning block 52.

[0044] The positioning block 52 comprises a pressing part 521 located at the upper end and exceeding the positioning table 41, and a bearing part 522 located at the lower end and exceeding the carrier table 1 below, the bearing part 522 and the pushing block 54 are both provided with inclined surfaces, and the inclined surfaces correspond to each other. One pushing cylinder 53 can correspond to the bearing parts 522 of a plurality of different clamping assemblies 5.

[0045] The metal block can be placed on the positioning table 41 by artificial placement, and the pressing part 521 pushes the product (metal part) to approach the positioning reference surface 42.

[0046] When the product is positioned on the positioning table 41, the suction nozzle on the mechanical arm for sucking the product (metal piece) sucks the product, and the push cylinder 53 pushes upward, the inclined surface of the push block 54 abuts against the inclined surface of the abutting portion 522, the positioning block 52 rotates around the rotating shaft, and the positioning block 52 moves away from the product (metal piece) to the positioning reference surface 42. Thus, the product is released, and the mechanical arm can pick up the metal piece and put it into the mold.

[0047] Therefore, the positioning device of the metal piece positioning mold can accurately position the metal ring and the plate-shaped metal block and then send them into the mold.

[0048] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A positioning device for a metal part positioning mold, characterized by The device comprises a base, a pushing assembly and a positioning assembly, the pushing assembly comprises a pushing cylinder fixed on the base, a guide table with a guide slot fixed on the base, and a pushing block received in the guide slot and used for connecting a mold slider, the pushing block is connected with the pushing cylinder, the positioning assembly comprises a fixed block fixed on the base, the fixed block has a sliding slot penetrating through the front and back surfaces of the fixed block, the positioning assembly further comprises a positioning block received in the sliding slot and used for placing a metal ring, and a spring located at the front end surface of the positioning block and abutting against the positioning block, the fixed block has a blocking part extending laterally above the positioning block; The pushing block has a pair of clamping slots recessed inwardly from the two sides of the pushing block, the rear end of the mold slider is provided with a pair of clamping hooks received in the clamping slots respectively, the size of the clamping slots is greater than the size of the clamping hooks, and the clamping hooks and the clamping slots keep a gap. The positioning block comprises a placing surface recessed downwardly from the upper surface of the positioning block, and a protruding part protruding upwardly from one side of the placing surface, the blocking part is located laterally above the placing surface, the front surface of the blocking part is located rearwardly of the front surface of the placing surface, and the blocking part and the protruding part form a perpendicular included angle.

2. The positioning device of a metal piece positioning mold according to claim 1, wherein The positioning block further comprises a trumpet mouth located at the rear end of the protruding part and recessed downwardly from the protruding part.

3. A positioning method of a metal piece positioning mold, using the positioning apparatus of the metal piece positioning mold according to any one of claims 1 to 2, characterized by, The mold slider buckles the pushing block, the metal ring faces the mold slider and is placed on the pushing block, the pushing block is pushed by the pushing cylinder, the pushing block abuts against the positioning block and moves forward, the metal ring moves forward with the positioning block, until the blocking part prevents the metal ring from advancing, the pushing block continues to advance, and the metal ring is sleeved on the mold slider.

4. The positioning method of a metal piece positioning mold according to Claim 3, wherein The pushing force of the pushing cylinder is released, the positioning block is abutted by a compression spring, the pushing cylinder and the positioning block drive the mold slider to retreat, and the positioning block is pushed to an initial position.

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