Two-way processing positioning tool for shoe tree injection hole

Abstract

The utility model relates to shoe tree preparation technical field especially relates to shoe tree injection molding hole two -way processing positioning frock, including setting on the preposition frock and clamping frock of machine table, preposition frock includes setting on the support of machine table, and the support can support shoe tree, still include with the first end cooperation of shoe tree injection molding hole first tight taper head, with the second end cooperation of shoe tree injection molding hole second tight taper head, clamping frock includes with the fixed base that the connecting plate of shoe tree cooperates, drill hole processing, and shoe tree is fixed through connecting plate fixed base, and preposition frock supports shoe tree middle position through support, and the angle is adjusted conveniently, and the process of angle adjustment is positioned two end portions of injection molding hole through first tight taper head and second tight taper head, after adjusting angle, through clamping frock fixed, when shoe tree is positioned and fixed, get injection molding hole from two ends through two drill bits, and single drill bit processing depth is shorter, and the yield is high and processing speed is fast, and can control aperture alone.

Description

Technical Field

[0001] This utility model relates to the field of shoe last preparation technology, and in particular to a bidirectional positioning tool for injection molding holes in shoe lasts. Background Technology

[0002] A shoe last is a mold used to process injection molded shoes. An inclined injection hole is machined on the shoe last from the upper to the sole, and then the rubber material is injected into the sole. After curing, the sole is formed. The shoe last is connected to a connecting plate, which in turn connects to the injection molding machine, so that the shoe last can be raised and lowered to open and close with the lower mold.

[0003] The injection holes are inclined and relatively long. Those skilled in the art have studied various processing methods to achieve rapid positioning and stable processing of injection holes, including the tooling for processing injection holes in shoe lasts disclosed in application number 202320382177.7.

[0004] To further improve processing efficiency, this application also proposes a bidirectional positioning fixture for injection holes in shoe lasts, providing more options for those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a bidirectional positioning tool for injection molding holes in shoe lasts.

[0006] This utility model is achieved through the following technical solution: a bidirectional positioning fixture for injection molding holes in shoe lasts, comprising a pre-positioning fixture and a clamping fixture mounted on a machine base. The pre-positioning fixture includes a support member set on the machine platform, which can support the shoe last, and also includes a first clamping cone that cooperates with the first end of the shoe last injection hole and a second clamping cone that cooperates with the second end of the shoe last injection hole. The first clamping cone, the second clamping cone, the first drill bit, and the second drill bit are coaxial. The clamping fixture includes a fixing seat that mates with the connecting plate of the shoe last. During drilling, the shoe last is fixed by the fixing seat of the connecting plate.

[0007] Furthermore, the support includes a base, on which a lifting seat is provided, and at the upper end of the lifting seat is a top that mates with the shoe last.

[0008] Furthermore, the base and the lifting seat are connected by a threaded rod, and the threaded rod is threaded to both the base and the lifting seat.

[0009] Furthermore, the first clamping cone includes a guide sleeve that cooperates with the first drill bit. A vertical plate for installing the guide sleeve is provided on the machine base. The guide sleeve is inserted into the vertical plate. A set screw for fixing the guide sleeve is also provided on the vertical plate. A movable conical tip is provided at the end of the guide sleeve.

[0010] Furthermore, the conical tip is hinged to the guide sleeve.

[0011] Furthermore, the second clamping cone includes a guide sleeve 2 that cooperates with the second drill bit, and the end of the guide sleeve 2 is provided with a conical tip 2.

[0012] Furthermore, the guide sleeve 2 consists of two retaining flaps, which are detachably fastened to the second drill bit by fastener 1.

[0013] Furthermore, the clamping fixture includes a base plate, the base plate is connected to a side plate, and the side plate and the connecting plate are detachably connected by fasteners.

[0014] The beneficial effects of this utility model are as follows: the pre-positioning fixture supports the middle position of the shoe last through the support member, which facilitates the adjustment of the angle. During the adjustment of the angle, the two ends of the injection hole are positioned by the first clamping cone and the second clamping cone. After the angle is adjusted, it is fixed by the clamping fixture. At this time, the shoe last is positioned and fixed. The injection hole is obtained by processing from both ends through two drill bits. The processing depth of a single drill bit is relatively short, the yield is high and the processing speed is fast. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the positional relationship of each component in Example 1; Figure 2 This is a schematic diagram showing the positional relationship of each component during drilling. Figure 3 This is a schematic diagram of the first clamping cone structure; Figure 4 This is a schematic diagram of the second clamping cone structure; Figure 5 A schematic diagram showing the connection between the clamping fixture and the shoe last; Figure 6 This is a schematic diagram of the support structure; Figure 7 This is a top view of the mobile platform in Example 2; Figure 8 This is a schematic diagram of the movable top block structure.

[0016] The components are: 1. Drilling platform; 2. First drilling rig; 3. First drill bit; 4. Second drilling rig; 5. Second drill bit; 6. Lead screw pair; 7. First clamping cone head; 701. Guide sleeve one; 702. Conical center one; 703. Ejector screw; 704. Vertical plate; 8. Second clamping cone; 801. Guide sleeve two; 802. Conical center two; 803. Clamp; 9. Clamping fixture; 901. Base plate; 902. Side upright plate; 903. Rib plate; 904. Connecting rod; 905. Pressure plate; 10. Support component; 1001. Base; 1002. Threaded rod; 1003. Lifting seat; 1004. Top head; 11. Shoe last; 12. Connecting plate; 13. Moving platform; 14. Moving seat; 15. Support slide rail; 16. Moving top block; 17. Push-pull rod. Detailed Implementation

[0017] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] 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 scope of protection of the present utility model.

[0019] Example 1 like Figure 1-6 As shown, a bidirectional positioning fixture for processing injection holes in shoe lasts is used to process injection holes in shoe lasts. A first drill 2 and a second drill 4 are installed on the machine base 1 to process injection holes from both ends. The processing speed is fast. The first drill 2 is equipped with a first drill bit 3, and the second drill 4 is equipped with a second drill bit 5. The first drill bit 3 and the second drill bit 5 are coaxial.

[0020] The pre-positioning fixture is installed on the machine tool 1. The pre-positioning fixture includes a support member 10 placed on the machine tool 1. The support member 10 can support the middle position or circumferential position of the shoe last 11. In this embodiment, the support member 10 supports the middle position of the shoe last 11. Specifically, the support member 10 includes a base 1001. The base 1001 is connected to the machine tool 1 by magnetic attraction and can move. A lifting seat 1003 is connected to the base 1001 by a threaded rod 1002. The threaded rod 1002, the base 1001, and the lifting seat 1003 are all threadedly connected, which facilitates the adjustment of the height of the lifting seat 1003. The upper end of the lifting seat 1003 is fixed with a top head 1004 that cooperates with the shoe last 11. By moving the position of the base 1001 laterally, the top head 1004 supports the middle position of the shoe last 11, which facilitates the adjustment of the angle of the shoe last 11.

[0021] The pre-positioning fixture also includes a first clamping cone 7 that mates with the first end of the injection hole of the shoe last 11, and a second clamping cone 8 that mates with the second end of the injection hole of the shoe last 11. The axes of the first clamping cone 7, the second clamping cone 8, the first drill bit 3, and the second drill bit 5 are defined as follows: the first clamping cone 7 includes a guide sleeve 701 that mates with the first drill bit 3; a vertical plate 704 for installing the guide sleeve 701 is mounted on the machine base 1; the guide sleeve 701 is slidably fitted onto the vertical plate 704; and a mounting plate 704 is also installed on the vertical plate 704. There is a set screw 703 for fixing the guide sleeve 701. The end of the guide sleeve 701 is hinged to a movable conical tip 702. The second clamping cone head 8 includes a guide sleeve 801 that cooperates with the second drill bit 5. The end of the guide sleeve 801 is equipped with the conical tip 802. The guide sleeve 801 is composed of two clips. The two clips are detachably fastened to the second drill bit 5 by a fastener 803 or other fasteners to fix the guide sleeve 801 and the second drill bit 5 coaxially.

[0022] The clamping fixture 9 includes a fixing seat that cooperates with the connecting plate 12 of the shoe last 11. During drilling, the shoe last 11 is fixed by the fixing seat of the connecting plate 12. Specifically, the fixing seat includes a base plate 901, a side plate 902 connected to the base plate 901, and a reinforcing plate 903 fixed between the base plate 901 and the side plate 902 to ensure strength. The base plate 901 is connected to the machine base 1 by magnetic attraction or a movable seat, so that it can move in position and be fixed to the machine base 1 after adjustment. It can be fixed by an electromagnet. When using a movable seat, the movable seat can be locked by an electromagnet. The side plate 902 and the connecting plate 12 are detachably connected by a second fastener. In this embodiment, the second fastener includes a connecting rod 904. The connecting rod 904 is connected to the side plate 902 and the connecting plate 12 by two pressure plates 905 respectively, thereby positioning and fixing the shoe last 11.

[0023] In this embodiment, for ease of operation, a mobile platform 13 is installed on the machine base 1. The mobile platform 13 is mounted on the machine base 1 via a support slide rail 15. The mobile platform 13 can move between the first drilling rig 2 and the second drilling rig 4. The upright plate 704 is fixedly installed on the mobile platform 13. A mobile seat 14 is also installed on the mobile platform 13. The support member 10 is placed on the mobile seat 14. The mobile seat 14 is mounted on the upper surface of the mobile platform via a support slide rail. Screw pairs 6 are connected between the mobile seat 14 and the mobile platform 13, and between the mobile platform 13 and the machine base 1, so that the stroke can be precisely controlled and locked after movement. A fixed seat is installed on the mobile seat, and the movement direction of the mobile seat is perpendicular to the movement direction of the mobile platform.

[0024] The first drilling rig and the second drilling rig, at least one of which can be moved, together with the movement of the moving platform, to achieve bidirectional drilling with high processing efficiency. The rig can be moved as a whole or by the head of the rig, as those skilled in the art can choose according to their needs. In this embodiment, the second drilling rig can be moved, and the head of the rig is selected to move. It can be moved manually to adapt to various types of shoe last processing and can control the hole diameter independently.

[0025] The working steps are as follows: First, support the shoe last 11 with the support member 10, and move the second drill 4 to adjust the shoe last 11 so that the first conical tip 702 and the second conical tip 802 are pressed against the position of the injection hole to be processed. Then, move the clamping fixture 9 so that the side plate 902 is in contact with the connecting plate 12. Fix the side plate 902 to the connecting plate 12 with the fastener 2. Then fix the base 1001 to the machine base 1, retract the second drill 4, remove the second guide sleeve 801, loosen the set screw 703, then move the second guide sleeve 801, rotate the first conical tip 702, and then tighten the set screw 703. The injection hole can be processed. During the processing, the first drill 2 and the second drill 4 move along the track 6 to feed.

[0026] Example 2 like Figure 7-8 As shown, a bidirectional processing and positioning fixture for injection holes in a shoe last differs from Embodiment 1 in that the support includes a movable top block 16 that can slide along the movable seat 14. The upper surface of the movable top block 16 is processed into an inclined surface. The movable top block 16 engages with the side of the shoe last 11 through the inclined surface. The movable top block 16 is connected to a push-pull rod 17. The push-pull rod 17 drives the movable top block 16 to move, thereby enabling the inclined surface to support the shoe last 11 at different heights, pressing or pressing it around the shoe last for convenient operation.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bidirectional positioning fixture for injection molding holes in shoe lasts, characterized in that, This includes pre-positioning fixtures and clamping fixtures mounted on the machine tool. The pre-positioning fixture includes a support member set on the machine platform, which can support the shoe last, and also includes a first clamping cone that cooperates with the first end of the shoe last injection hole and a second clamping cone that cooperates with the second end of the shoe last injection hole. The first clamping cone, the second clamping cone, the first drill bit, and the second drill bit are coaxial. The clamping fixture includes a fixing seat that mates with the connecting plate of the shoe last. During drilling, the shoe last is fixed by the fixing seat of the connecting plate.

2. The bidirectional positioning fixture for injection molding holes in shoe lasts according to claim 1, characterized in that, The support includes a base, on which a lifting seat is provided, and at the upper end of the lifting seat is a top that cooperates with the shoe last.

3. The bidirectional positioning fixture for injection molding holes in shoe lasts according to claim 2, characterized in that, The base and the lifting seat are connected by a threaded rod, and the threaded rod is threaded to both the base and the lifting seat.

4. The bidirectional positioning fixture for injection molding holes in shoe lasts according to claim 1, characterized in that, The first clamping cone includes a guide sleeve that cooperates with the first drill bit. A vertical plate for installing the guide sleeve is provided on the machine base. The guide sleeve is inserted into the vertical plate. A set screw for fixing the guide sleeve is also provided on the vertical plate. A movable conical tip is provided at the end of the guide sleeve.

5. The bidirectional positioning fixture for injection molding holes in shoe lasts according to claim 4, characterized in that, The conical tip is hinged to the guide sleeve.

6. The bidirectional positioning fixture for injection molding holes in shoe lasts according to claim 1, characterized in that, The second clamping cone includes a guide sleeve 2 that cooperates with the second drill bit, and the end of the guide sleeve 2 is provided with a conical tip 2.

7. The bidirectional positioning fixture for injection molding holes in shoe lasts according to claim 6, characterized in that, The guide sleeve 2 consists of two retaining flaps, which are detachably fastened to the second drill bit by fastener 1.

8. The bidirectional positioning fixture for injection molding holes in shoe lasts according to claim 1, characterized in that, The clamping fixture includes a base plate, and the base plate is connected to a side plate. The side plate and the connecting plate are detachably connected by fasteners.

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