A flat top needle clamping tool for efficient processing
By designing a flat ejector clamping tool with multiple flat ejector mounting slots and positioning bolts, the problems of difficult center positioning and cumbersome calibration of flat ejectors were solved, enabling efficient and accurate positioning and processing of multiple flat ejectors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FLEXTRONICS MFG ZHUHAI
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-23
AI Technical Summary
In the existing technology, it is difficult to center the flat ejector pin, the vertical and horizontal calibration is cumbersome, and the processing efficiency is low, making it impossible to clamp and process multiple flat ejector pins at the same time.
A flat ejector pin clamping tool including a fixed side chuck and a movable side chuck was designed. By setting multiple flat ejector pin mounting slots and positioning bolts on the fixed side chuck, combined with longitudinal pressure strips and a fixing mechanism, multiple flat ejector pins can be installed and positioned simultaneously, simplifying the mold setting and centering process before EDM processing.
It improves the processing efficiency and precision of flat ejector pins, reduces the time for mold setting and centering of a single flat ejector pin, and enables simultaneous processing and precise positioning of multiple flat ejector pins.
Smart Images
Figure CN224390857U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of clamping tools for mold manufacturing, and specifically relates to a high-efficiency flat ejector pin clamping tool for machining. Background Technology
[0002] Flat ejector pins are commonly used parts in molds. During EDM (Electronic Manufacturing Demand) processing, problems such as difficulty in center positioning and cumbersome vertical and horizontal calibration have always existed. Currently, ejector pin clamping methods on the market only clamp round ejector pins, and only one pin can be processed at a time. There are no corresponding fixtures for flat ejector pins; they are usually processed individually. During processing, each flat ejector pin needs to be pre-set up and centered before EDM processing. In practice, according to statistics, EDM processing only takes 5-10 minutes, while the average time required for pre-setting up and centering flat ejector pins is about 30 minutes. Clearly, the pre-setting up and calibration of flat ejector pins is time-consuming, resulting in low processing efficiency. Therefore, it is necessary to design a flat ejector pin clamping tool that facilitates efficient processing. Utility Model Content
[0003] The purpose of this invention is to provide a high-efficiency flat pin clamping tool for machining, in order to solve the above-mentioned problems existing in the prior art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A high-efficiency flat ejector pin clamping tool includes a fixed-side chuck and a movable-side chuck. The upper part of the fixed-side chuck is provided with an elongated protrusion protruding to one side. Multiple flat ejector pin mounting slots are provided on the side of the elongated protrusion, which are distributed along its length, for placing the upper part of the flat ejector pin in the flat ejector pin mounting slot. The movable-side chuck is mounted on the elongated protrusion outside the flat ejector pin mounting slot, and multiple first threaded holes are provided on the movable-side chuck. Each flat ejector pin mounting slot is provided with at least one first threaded hole. A positioning bolt is threaded into the first threaded hole, and one end of the positioning bolt presses the upper part of the flat ejector pin against the flat ejector pin mounting slot.
[0006] As a preferred technical solution of this utility model, the high-efficiency processing flat ejector pin clamping tool further includes a longitudinal pressure bar. The upper end of the fixed-side clamp is provided with a long strip groove extending along its length direction. The longitudinal pressure bar is slidably connected in the long strip groove, and a fixing mechanism is provided between the longitudinal pressure bar and the fixed-side clamp to fix it in the long strip groove. The upper end of the fixed-side clamp on the same side of all flat ejector pin mounting slots is provided with a positioning groove. Each positioning groove connects the long strip groove and the corresponding flat ejector pin mounting slot. A plurality of longitudinal pressure blocks are provided on one side of the longitudinal pressure bar. The middle part of each longitudinal pressure block is slidably connected in the positioning groove, and the end of each longitudinal pressure block is provided in the flat ejector pin mounting slot and abuts against the flat ejector pin.
[0007] As a preferred technical solution of this utility model, the inner wall of one side of each flat ejector pin mounting groove and the inner wall of the corresponding positioning slide groove are located on the same vertical plane. The width of the flat ejector pin is A, the width of the positioning slide groove is B, and the width of the flat ejector pin mounting groove is C, where C > A, B < C, and A + B > C.
[0008] As a preferred technical solution of this utility model, the fixing mechanism includes a tensioning bolt, a first through hole communicating with the long strip groove is provided at one end of the upper part of the fixing side clamp, a second threaded hole is coaxially provided at one end of the longitudinal pressure strip corresponding to the first through hole, the nut part of the tensioning bolt abuts against one end of the fixing side clamp, and the screw part of the tensioning bolt passes through the first through hole and is threaded into the second threaded hole.
[0009] As a preferred technical solution of this utility model, the fixing mechanism further includes a reset pull rod. The other end of the upper part of the fixing side clamp is provided with a second through hole that communicates with the long strip groove. One end of the reset pull rod passes through the second through hole and is connected to the other end of the longitudinal pressure strip. The other end of the reset pull rod is provided with a limiting part. A compression spring is sleeved on the reset pull rod between the limiting part and the other end of the fixing side clamp.
[0010] As a preferred technical solution of this utility model, the high-efficiency processing flat pin clamping tool further includes a bundle block. The upper end of the fixed side clamp is provided with a bundle block mounting groove that cooperates with the middle of the other side of the longitudinal pressure bar. The bundle block is set in the bundle block mounting groove. One side of the bundle block presses against the longitudinal pressure bar. The other side of the bundle block is connected to the fixed side clamp through a first bolt. The length of the bundle block mounting groove on the other side of the longitudinal pressure bar is greater than the length of the bundle block.
[0011] As a preferred technical solution of this utility model, the lower end of the fixed side clamp is provided with an extended base. The fixed side clamp is detachably connected to the extended base by a second bolt. The extended base is located on one side of all the flat pins, and the lower end of the extended base is lower in the horizontal direction than the lower end of the flat pin.
[0012] As a preferred technical solution of this utility model, the upper end of the extended base is provided with a limiting block extending along its length direction, and the lower end of the fixed side clamp is provided with a limiting groove extending along its length direction, with the limiting block matched and disposed in the limiting groove.
[0013] Beneficial effects: This utility model sets multiple flat ejector pin mounting slots between the movable side chuck and the fixed side chuck, which facilitates the simultaneous installation of the upper parts of multiple flat ejector pins into the flat ejector pin mounting slots on one side of the fixed side chuck. Then, they are positioned one by one by the positioning bolts on the movable side chuck. The flat ejector pins are pre-installed on the clamping tool before EDM processing. In this way, during EDM processing, the fixed side chuck can be directly installed on the equipment. Then, all flat ejector pins are molded and centered in one correction and one centering, saving a lot of time. This not only improves processing efficiency but also helps to improve the accuracy of processing flat ejector pins. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0015] Figure 2 This is a top view of the present invention.
[0016] In the figure: 1-Fixed side clamp; 101-Long strip protrusion; 2-Modible side clamp; 201-First threaded hole; 3-Flat pin; 4-Longitudinal pressure bar; 401-Longitudinal pressure block; 5-Tightening bolt; 6-Reset pull rod; 7-Compression spring; 8-Bundle block; 9-First bolt; 10-Extended base; 1001-Limiting block; 11-Second bolt. Detailed Implementation
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is 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. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.
[0018] Example:
[0019] like Figure 1 and Figure 2 As shown, this embodiment provides a high-efficiency flat ejector pin clamping tool, including a fixed-side chuck 1 and a movable-side chuck 2. The upper part of the fixed-side chuck 1 is provided with an elongated protrusion 101 protruding to one side. The side of the elongated protrusion 101 is provided with a plurality of flat ejector pin mounting slots distributed along its length direction, for placing the upper part of the flat ejector pin 3 in the flat ejector pin mounting slots, specifically as follows. Figure 1 and Figure 2As shown, the lower part of the flat ejector pin 3 can be positioned below the elongated protrusion 101, while the fixed-side chuck 1 can be mounted on the equipment during mold setting. Combined with the layout of the flat ejector pin mounting slot, this facilitates the simultaneous setting and centering of multiple flat ejector pins, significantly reducing the time required for setting and centering a single flat ejector pin, thereby improving processing efficiency. Furthermore, the movable-side chuck 2 is mounted on the elongated protrusion 101 outside the flat ejector pin mounting slot. It can be directly fixed or detachably mounted. Figure 1 and Figure 2 As described above, the installation is carried out by bolts, and the movable side chuck 2 has multiple first threaded holes 201. Each flat ejector pin mounting slot is corresponding to at least one first threaded hole 201. A positioning bolt is internally threaded into the first threaded hole 201. One end of the positioning bolt presses the upper part of the flat ejector pin 3 against the flat ejector pin mounting slot. The flat ejector pin 3 is clamped in the flat ejector pin mounting slot by the positioning bolt, thereby achieving the positioning of the flat ejector pin 3. This ensures that all flat ejector pins 3 are arranged according to the design. In this way, the mold setting and centering of all flat ejector pins can be achieved through one correction and one centering. This not only improves the processing efficiency but also helps to improve the processing accuracy of the flat ejector pins. For example, all flat ejector pins 3 are positioned on one side of the corresponding ejector pin mounting slot. As long as the accuracy is ensured when installing the fixed side chuck 1, the accuracy of all flat ejector pins during processing can be guaranteed.
[0020] This invention provides multiple flat ejector pin mounting slots between the movable side chuck 2 and the fixed side chuck 1, facilitating the simultaneous installation of the upper parts of multiple flat ejector pins 3 into the flat ejector pin mounting slots on one side of the fixed side chuck 1. Then, each pin is positioned individually using the positioning bolts on the movable side chuck 2. Before EDM processing, the flat ejector pins are pre-installed on the clamping tool. During EDM processing, the fixed side chuck 1 can be directly installed on the equipment, and all flat ejector pins can be molded and centered in one calibration and one centering operation, saving significant time and improving processing efficiency as well as the precision of the flat ejector pins.
[0021] As a preferred embodiment of this example, it should be further explained that the high-efficiency processing flat ejector clamping tool also includes a longitudinal pressure strip 4. The upper end of the fixed-side chuck 1 has a long, elongated groove extending along its length. The longitudinal pressure strip 4 is slidably connected within the long, elongated groove, and a fixing mechanism is provided between the longitudinal pressure strip 4 and the fixed-side chuck 1 to fix it within the long, elongated groove. In other words, the longitudinal pressure strip 4 is fixed to the fixed-side chuck 1, thus facilitating the fixing of the longitudinal pressure strip 4 when the flat ejector 3 is positioned. Fixing the longitudinal pressure strip 4 improves the stability of the flat ejector 3. The upper end of the fixed-side chuck 1 on the same side of all flat ejector mounting slots has a positioning groove. Each positioning groove connects the long, elongated groove and the corresponding flat ejector mounting slot. Multiple longitudinal pressure strips are provided on one side of the longitudinal pressure strip 4. The pressure block 401, each of the longitudinal pressure blocks 401 is slidably connected in the middle of the positioning groove, so that the longitudinal pressure block 401 can move together with the longitudinal pressure strip 4. The end of each longitudinal pressure block 401 is set in the flat ejector pin mounting groove and abuts against the flat ejector pin 3. Before installing the flat ejector pin 3, the longitudinal pressure block 401 is located on one side of the positioning groove. The flat ejector pin mounting groove corresponding to the end of the positioning groove has enough space reserved for installing the flat ejector pin 3, so that the upper part of the flat ejector pin 3 can be set in the flat ejector pin mounting groove. When positioning the flat ejector pin 3, the longitudinal pressure strip 4 can be controlled to slide along the long groove, so that the longitudinal pressure strip 4 drives the longitudinal pressure block 401 to abut against one side of the flat ejector pin 3, thereby positioning the flat ejector pin 3. This positioning, in conjunction with the positioning bolt, can further enhance the stability of the flat ejector pin 3.
[0022] As a preferred embodiment of this example, it should be further explained that the inner wall of one side of each flat ejector mounting groove and the inner wall of the corresponding positioning slide groove are located on the same vertical plane, which facilitates processing. The width of the flat ejector 3 is A, the width of the positioning slide groove is B, and the width of the flat ejector mounting groove is C. C > A, which facilitates the installation of the flat ejector 3 in the flat ejector mounting groove. B < C, and A + B > C, so that after the flat ejector 3 is installed, the longitudinal pressing block 401 can be slid to press against one side of the flat ejector 3 by sliding the longitudinal pressing block 401.
[0023] As a preferred embodiment of this example, it should be further explained that the fixing mechanism includes a tension bolt 5. One end of the upper part of the fixed side clamp 1 is provided with a first through hole that communicates with the elongated sliding groove. One end of the longitudinal pressure strip 4 corresponding to the first through hole is coaxially provided with a second threaded hole. The nut part of the tension bolt 5 abuts against one end of the fixed side clamp 1. The screw part of the tension bolt 5 passes through the first through hole and is threaded into the second threaded hole. By rotating the tension bolt 5, the screw part of the tension bolt 5 can be inserted into the second threaded hole, and the longitudinal pressure strip 4 can be controlled to slide stably towards one end of the fixed side clamp 1, thereby realizing the position adjustment of the longitudinal pressure strip 4, which facilitates the positioning of the flat pin 3 by the longitudinal pressure strip 4.
[0024] As a preferred embodiment of this example, it should be further explained that the fixing mechanism also includes a reset lever 6. The other end of the upper part of the fixed side clamp 1 is provided with a second through hole that communicates with the elongated slide groove. One end of the reset lever 6 passes through the second through hole and is connected to the other end of the longitudinal pressure bar 4. The other end of the reset lever 6 is provided with a limiting part. A compression spring 7 is sleeved on the reset lever 6 between the limiting part and the other end of the fixed side clamp 1. It should be noted that the extension direction of the reset lever 6 is consistent with the extension direction of the elongated slide groove, ensuring that the longitudinal pressure bar 4 can slide together with the reset lever 6 when sliding. When the longitudinal pressure bar 4 slides towards the fixed side clamp 1, the limiting part of the reset lever 6 will press against the compression spring 7. When the processing is completed and all the flat ejector pins 3 need to be removed, the tension bolt 5 can be adjusted in the opposite direction. Under the spring force of the compression spring 7, the reset lever 6 will drive the longitudinal pressure bar 4 to slide towards the other end of the fixed side clamp 1, thereby releasing all the flat ejector pins 3, making the overall operation simpler.
[0025] As a preferred embodiment of this invention, it should be further explained that the high-efficiency processing flat pin clamping tool also includes a bundle block 8. The upper end of the fixed side clamp 1 is provided with a bundle block mounting groove that cooperates with the middle of the other side of the longitudinal pressure strip 4. The bundle block 8 is set in the bundle block mounting groove. One side of the bundle block 8 presses against the longitudinal pressure strip 4, and the other side of the bundle block 8 is connected to the fixed side clamp 1 through the first bolt 9. The length of the bundle block mounting groove on the other side of the longitudinal pressure strip 4 is greater than the length of the bundle block 8, so that the bundle block 8 will not affect the sliding of the longitudinal pressure strip 4. At the same time, the bundle block 8 can be used to limit the longitudinal pressure strip 4 from above, further improving the stability of the longitudinal pressure strip 4.
[0026] As a preferred embodiment of this invention, it should be further explained that when the length of the flat ejector pin 3 is greater than the height of the fixed-side chuck 1, affecting the installation of the fixed-side chuck 1 on the processing equipment, the lower end of the fixed-side chuck 1 is provided with an extended base 10. The fixed-side chuck 1 is detachably connected to the extended base 10 by a second bolt 11, which facilitates the installation and removal of the extended base 10. Then, the extended base 10 is installed on the processing equipment. The extended base 10 is located on one side of all the flat ejector pins 3, and the lower end of the extended base 10 is lower in the horizontal direction than the lower end of the flat ejector pin 3, so it will not affect the installation and positioning of the flat ejector pin 3, and thus will not affect the subsequent processing of the flat ejector pin 3.
[0027] As a preferred embodiment of this invention, it should be further explained that the upper end of the extended base 10 is provided with a limiting block 1001 extending along its length direction, and the lower end of the fixed side clamp 1 is provided with a limiting groove extending along its length direction. The limiting block 1001 is matched and disposed in the limiting groove, so that the installation of the fixed side clamp 1 on the extended base 10 is faster and more accurate, and the assembly of the two can be achieved more quickly.
[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A high-efficiency flat ejector pin clamping tool for machining, characterized in that, The device includes a fixed side clamp (1) and a movable side clamp (2). The upper part of the fixed side clamp (1) is provided with a long strip protrusion (101) that protrudes to one side. The side of the long strip protrusion (101) is provided with a plurality of flat ejector pin mounting slots distributed along its length direction, which are used to place the upper part of the flat ejector pin (3) in the flat ejector pin mounting slot. The movable side clamp (2) is installed on the long strip protrusion (101) outside the flat ejector pin mounting slot. The movable side clamp (2) is provided with a plurality of first threaded holes (201). Each flat ejector pin mounting slot is provided with at least one first threaded hole (201). A positioning bolt is threaded into the first threaded hole (201). One end of the positioning bolt presses the upper part of the flat ejector pin (3) against the flat ejector pin mounting slot.
2. The high-efficiency machining flat pin clamping tool according to claim 1, characterized in that, The high-efficiency processing flat ejector pin clamping tool also includes a longitudinal pressure bar (4). The upper end of the fixed side chuck (1) is provided with a long strip groove extending along its length direction. The longitudinal pressure bar (4) is slidably connected in the long strip groove, and a fixing mechanism is provided between the longitudinal pressure bar (4) and the fixed side chuck (1) to fix it in the long strip groove. The upper end of the fixed side chuck (1) on the same side of all flat ejector pin mounting slots is provided with a positioning groove. Each positioning groove is connected to the long strip groove and the corresponding flat ejector pin mounting slot. A plurality of longitudinal pressure blocks (401) are provided on one side of the longitudinal pressure bar (4). The middle part of each longitudinal pressure block (401) is slidably connected in the positioning groove, and the end of each longitudinal pressure block (401) is provided in the flat ejector pin mounting slot and abuts against the flat ejector pin (3).
3. The high-efficiency machining flat pin clamping tool according to claim 2, characterized in that, The inner wall of one side of each flat ejector mounting groove and the inner wall of the corresponding positioning slide are located on the same vertical plane. The width of the flat ejector (3) is A, the width of the positioning slide is B, and the width of the flat ejector mounting groove is C. C > A, B < C, and A + B > C.
4. The high-efficiency machining flat pin clamping tool according to claim 2, characterized in that, The fixing mechanism includes a tension bolt (5), and a first through hole connected to the long strip groove is provided at one end of the upper part of the fixing side clamp (1). A second threaded hole is coaxially provided at one end of the longitudinal pressure strip (4) corresponding to the first through hole. The nut part of the tension bolt (5) abuts against one end of the fixing side clamp (1), and the screw part of the tension bolt (5) passes through the first through hole and is threaded into the second threaded hole.
5. The high-efficiency machining flat pin clamping tool according to claim 4, characterized in that, The fixing mechanism also includes a reset pull rod (6). The other end of the upper part of the fixed side clamp (1) is provided with a second through hole that communicates with the long strip groove. One end of the reset pull rod (6) passes through the second through hole and is connected to the other end of the longitudinal pressure bar (4). The other end of the reset pull rod (6) is provided with a limit part. A compression spring (7) is sleeved on the reset pull rod (6) between the limit part and the other end of the fixed side clamp (1).
6. A high-efficiency machining flat ejector pin clamping tool according to any one of claims 2-5, characterized in that, The high-efficiency processing flat pin clamping tool also includes a bundle block (8). The upper end of the fixed side chuck (1) and the middle of the other side of the longitudinal pressure bar (4) are provided with a bundle block mounting groove. The bundle block (8) is set in the bundle block mounting groove. One side of the bundle block (8) presses the longitudinal pressure bar (4). The other side of the bundle block (8) is connected to the fixed side chuck (1) by a first bolt (9). The length of the bundle block mounting groove on the other side of the longitudinal pressure bar (4) is greater than the length of the bundle block (8).
7. A high-efficiency machining flat pin clamping tool according to any one of claims 1-5, characterized in that, The lower end of the fixed side clamp (1) is provided with an extended base (10). The fixed side clamp (1) is detachably connected to the extended base (10) by a second bolt (11). The extended base (10) is located on one side of all the flat pins (3), and the lower end of the extended base (10) is lower in the horizontal direction than the lower end of the flat pin (3).
8. The high-efficiency machining flat pin clamping tool according to claim 7, characterized in that, The upper end of the extended base (10) is provided with a limiting block (1001) extending along its length direction, and the lower end of the fixed side clamp (1) is provided with a limiting groove extending along its length direction. The limiting block (1001) is matched and disposed in the limiting groove.