Rapid positioning, machining and forming tool with adjustable vertical height of ejector rod
By designing a quick-positioning and forming fixture with adjustable vertical height for the push rod, the problems of clamping difficulties and unstable positioning in the precision machining of the push rod were solved, improving processing efficiency and safety, and meeting the requirements of standardized operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-10
AI Technical Summary
Existing top rod finishing processes suffer from problems such as difficulty in clamping, positioning, instability, low processing efficiency, and high skill requirements for operators.
A quick positioning and forming fixture with adjustable vertical height for the push rod was designed, including a base, a guide fixing column, a height limiting block, a locking device, a push rod limiting block, and a push rod locking block. The push rod is quickly positioned and fixed through the reference groove, the push rod limiting groove, and the locking block.
It enables rapid and stable fixing of the top rod, improves processing efficiency, reduces safety hazards, meets standardized operation requirements, and reduces the processing defect rate.
Smart Images

Figure CN223981469U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, specifically to a quick positioning and forming tooling with adjustable ejector pin height. Background Technology
[0002] Ejector pins in injection molds are standard components used to fix the mold and eject the product. They typically consist of a cylindrical shank and a flat wire end. One end of the ejector pin is fixed to the mold base, and the other end is connected to the movable mold plate. After injection molding and mold opening, the ejector pin, in conjunction with other ejection mechanisms, safely ejects the product and successfully completes the part removal. Generally, the machining process of ejector pins follows the general principles of material preparation, roughing, semi-finishing, and finishing. In the finishing stage, due to variations in product shape and the ejector pin's position within the mold, each ejector pin needs to be individually machined to produce its head shape in the final finishing stage. Current machining technology involves clamping the ejector pin in a flat-jaw vise (clamping method as follows...). Figure 1 (As shown) After leveling with a dial indicator, each piece is processed one by one.
[0003] Therefore, the existing processing technology is limited by the variety of push rod lengths, which leads to problems such as difficulty in clamping, positioning, and fixing the push rod. At the same time, the existing processing method has low on-site operation efficiency and the push rod is prone to shaking, resulting in overcutting and poor processing. Furthermore, the existing processing method requires high skill levels from the processing operators and does not meet the requirements of standardized operation. Utility Model Content
[0004] The purpose of this utility model is to address the problems of difficulty in clamping, positioning, and fixing the push rod in the existing push rod finishing stage by using flat-jaw pliers. These problems include low work efficiency, easy shaking of the push rod leading to overcutting, and high skill requirements for the machining operators, which does not meet the requirements of standardized operation. Therefore, this utility model designs a quick positioning and forming tooling with adjustable push rod vertical height to solve the above problems.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0006] This utility model designs a quick positioning and forming fixture with adjustable vertical height of the top rod. The forming fixture includes:
[0007] Base;
[0008] Several guide posts, one end of which is disposed on the base and the other end of which extends away from the base;
[0009] A height limiting block is slidably mounted on the guide fixing post;
[0010] A locking device is provided on the height limiting block for fixing the height limiting block after sliding adjustment to the guide fixing post;
[0011] The top rod limiting block is slidably disposed on the guide fixing column and limited by the height limiting block located below it. The outer edge of the top rod limiting block is provided with a plurality of top rod limiting grooves.
[0012] And a top rod locking block, which is connected to the top rod limiting block, for locking the top rod located in the top rod limiting groove therein.
[0013] Furthermore, a quick positioning and forming fixture with adjustable vertical height of the push rod: the base is provided with a reference groove for quick positioning, the reference groove is used to embed the flat wire end of the push rod during the processing of the push rod, and the processing end of the push rod passes through the push rod limiting groove and extends above the push rod limiting block.
[0014] Furthermore, a quick positioning and forming tooling with adjustable top rod height: one end of the guide fixing column is vertically set on the base.
[0015] Furthermore, a quick positioning and forming fixture with adjustable top rod height is provided: the base is also provided with a threaded hole; one end of the guide fixing column is threadedly connected to the threaded hole.
[0016] Furthermore, a quick positioning and forming fixture with adjustable vertical height of the top rod: the locking device is a screw, which is threadedly connected to the height limiting block and one end of the locking device abuts against the guide fixing post, for locking the height limiting block to the guide fixing post.
[0017] Furthermore, a quick positioning and forming tooling for adjustable top rod vertical height: the top rod limiting groove is set as a "V" shaped groove structure.
[0018] Furthermore, a quick positioning and forming tooling for adjustable top rod vertical height: the top rod locking block is bolted to the top rod limiting block.
[0019] The beneficial effects of this utility model are:
[0020] This utility model presents a quick-positioning and forming fixture with adjustable vertical height for top rods. During top rod precision machining, it enables rapid and effective fixing of top rods of various lengths, improving on-site work efficiency and processing stability while reducing safety hazards. Using this forming fixture, top rods can be quickly and in batches clamped and fixed according to length in a single operation, effectively improving on-site work efficiency. Furthermore, this forming fixture requires minimal operator skill and enables standardized top rod machining operations.
[0021] This utility model presents a quick-positioning and forming fixture with adjustable vertical height for push rods. It is highly efficient and convenient to use, enabling rapid, batch positioning and fixing of various types of push rods. This facilitates precision machining of batch push rods after fixing them with this fixture, avoiding the low processing efficiency caused by individually clamping and machining each push rod. Furthermore, this forming fixture, by setting a reference groove on the base, a push rod limiting groove on the push rod limiting block, and a push rod locking block, ensures the stability of all clamped push rods after they are clamped in batches. This prevents push rod wobbling during processing and avoids overcutting, facilitating on-site operations and improving processing efficiency. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram showing the use of flat-jaw pliers for clamping and fixing during the precision machining of existing push rods;
[0024] Figure 2 A schematic diagram of a quick positioning and forming tooling with adjustable vertical height for a top rod, designed for Embodiment 1 of this utility model;
[0025] Figure 3 for Figure 2 A magnified view of part A in the middle;
[0026] Figure 4 This is a top view of a quick positioning and forming tooling with adjustable vertical height for a top rod, designed for Embodiment 1 of this utility model.
[0027] The markings in the diagram are: 1-base, 2-guide fixing post, 3-height limit block, 4-locking device, 5-top rod limit block, 6-top rod locking block, 7-top rod, 8-flat jaw vise, 11-reference groove, 51-top rod limit groove, 71-flat wire end, 72-processing end. Detailed Implementation
[0028] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "top," and "bottom," etc., indicating orientation or positional relationships, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein.
[0030] like Figure 1 As shown, in the current finishing process, the cylindrical shank of the ejector pin 7 is typically clamped and fixed one by one with a flat-jaw vise 8, then leveled with a dial indicator, and then the machining end 72 of the ejector pin 7 is machined. However, the existing method of clamping and fixing the ejector pin 7 with a flat-jaw vise 8 has the following problems: ① It is limited by the length of the ejector pin 7. Different lengths of ejector pin 7 will lead to difficulties in clamping, positioning, and fixing; ② At the same time, the method of clamping and fixing the ejector pin 7 one by one with a flat-jaw vise 8 will result in low on-site work efficiency and the fixing method of the flat-jaw vise 8 is unstable. It is easy for the ejector pin 7 to wobble after clamping, resulting in overcutting and machining defects; ③ The existing clamping and fixing method of the ejector pin 7 requires high skills from the machining operator and does not meet the requirements of standardized operation.
[0031] Example 1
[0032] like Figures 2-3As shown, this embodiment 1 provides a quick positioning and forming fixture with adjustable vertical height for the top rod. The fixture includes:
[0033] The base 1 has a reference groove 11 and a threaded hole for quick positioning.
[0034] Several guide fixing posts 2, one end of which is vertically connected to the threaded hole of the base 1 by a threaded connection, and the other end extends in a direction away from the base 1.
[0035] The height limiting block 3 is slidably mounted on the guide fixing post 2;
[0036] The locking device 4 is configured as a screw, which is threadedly connected to the height limiting block 3 and one end of the locking device 4 (screw) abuts against the guide fixing post 2, for locking and fixing the height limiting block 3 after sliding adjustment to the guide fixing post 2.
[0037] The top rod limiting block 5 is slidably disposed on the guide fixing column 2 and limited by the height limiting block 3 located below it. The outer edge of the top rod limiting block 5 is provided with a plurality of top rod limiting grooves 51 in the form of V” grooves.
[0038] And the top rod locking block 6, which is bolted to the top rod limiting block 5, for locking the top rod 7 located in the top rod limiting groove 51 therein;
[0039] The reference groove 11 is used to embed the flat wire end 71 of the top rod 7 during the machining of the top rod 7, and the machined end 72 of the top rod 7 passes through the top rod limiting groove 51 and extends above the top rod limiting block 5.
[0040] During the finishing process of the push rod 7: First, the flat wire end 71 of a batch of push rods 7 is inserted into the reference groove 11 of the base 1 and the cylindrical handle of the push rod 7 is placed against the push rod limiting groove 51 on the outer edge of the push rod limiting block 5. The height limiting block 3 is adjusted along the guide fixing post 2 according to a suitable height and the height limiting block 3 after height adjustment is locked on the guide fixing post 2 by the locking device 4. The height limiting block 3 supports the push rod limiting block 5 to prevent it from falling on the guide fixing post 2. Then, the push rod locking block 6 is connected to the push rod limiting block 5 by bolts. The push rod 7 is limited in the push rod limiting groove 51 by the push rod locking block 6, and the clamping and fixing of the push rod 7 in the forming tooling of this embodiment 1 is completed. Then, the machining end 72 of the push rod 7 is machined from above the push rod limiting block 5.
[0041] The above-described preferred embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of this utility model. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A quick positioning and forming tool with adjustable vertical height of ejector rod, characterized in that, The processing forming tool comprises: a base (1); a plurality of guide fixed columns (2) arranged on the base (1) and extending away from the base (1); a height limiting block (3) slidingly arranged on the guide fixed column (2); a locking device (4) arranged on the height limiting block (3) and used for fixing the height limiting block (3) on the guide fixed column (2) after sliding adjustment; a top rod limiting block (5) slidingly arranged on the guide fixed column (2) and limited by the height limiting block (3) below, and the outer edge of the top rod limiting block (5) is provided with a plurality of top rod limiting grooves (51); and a top rod locking block (6) connected to the top rod limiting block (5) and used for locking the top rod (7) in the top rod limiting groove (51).
2. The quick positioning and forming tooling with adjustable height of ejector rod according to claim 1, characterized in that, The base (1) is provided with a reference groove (11) for quick positioning, the reference groove (11) is used for embedding the flat wire end (71) of the top rod (7) when the top rod (7) is processed, and the processing end (72) of the top rod (7) passes through the top rod limiting groove (51) and extends above the top rod limiting block (5).
3. The quick positioning and forming tooling with adjustable height of ejector rod according to claim 1, characterized in that, One end of the guide fixed column (2) is vertically arranged on the base (1).
4. The quick positioning and forming tooling with adjustable height of ejector rod according to claim 1 or 3, characterized in that, The base (1) is further provided with a threaded hole; one end of the guide fixed column (2) is threadedly connected in the threaded hole.
5. The quick positioning and forming tooling of the ejection pin vertical height adjustable according to claim 1, characterized in that, The locking device (4) is arranged as a screw, which is threadedly connected on the height limiting block (3) and one end of the locking device (4) abuts against the guide fixed column (2), so as to lock the height limiting block (3) on the guide fixed column (2).
6. The quick positioning and forming tooling with adjustable height of ejector rod according to claim 1, characterized in that, The top rod limiting groove (51) is arranged as a "V" groove structure.
7. The quick positioning and forming tooling with adjustable height of ejector rod according to claim 1, characterized in that, The top rod locking block (6) is connected to the top rod limiting block (5) by bolts.