Quick positioning fixture for counterbore machining

By driving the coordinated movement of the push plate and the clamping plate through the transmission mechanism, the problem of slow clamping speed of existing countersunk hole machining positioning fixtures is solved, and rapid positioning and efficient clamping of workpieces are achieved.

CN224674343UActive Publication Date: 2026-08-25龙口港集团有限公司
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Patent Information

Application Number
CN202521406202.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-07
Publication Date
2026-08-25
Estimated Expiration
2035-07-07

AI Technical Summary

Technical Problem

Existing countersunk hole machining positioning fixtures are slow in clamping workpieces and cannot achieve rapid positioning, which affects the positioning efficiency of users.

Method used

A rapid positioning fixture including a transmission mechanism was designed. The elliptical disk driven by a motor drives the push plate and push rod. The workpiece is quickly clamped through the coordinated movement of the push plate and the clamping plate, avoiding the time consumption of traditional thread transmission.

Benefits of technology

It enables rapid workpiece positioning, increases positioning speed, reduces workpiece fixing time, and improves user operating efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of quick positioning clamps for counterbore machining, comprising: positioning clamp, the positioning clamp includes work plate, the top of the front of the work plate is fixedly connected with protective shell, the bottom of the front of the work plate is fixedly connected with protection plate, clamping plate, the clamping plate is set in the front of work plate, transmission mechanism, the transmission mechanism includes motor, the front of the motor fixedly connected in protective shell inner wall, the output end of the motor is fixedly connected with oval disc, the top and bottom of oval disc surface are movably connected with push plate, the top of the push plate is provided with push rod one. The utility model can drive top clamping plate and bottom clamping plate by setting transmission mechanism, quickly clamps workpiece by top clamping plate and bottom clamping plate, user does not need to fix workpiece with a large amount of time when using, can quickly position workpiece, to ensure the positioning speed of user.
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Description

Technical Field

[0001] This utility model relates to the field of countersunk hole machining technology, specifically a quick positioning fixture for countersunk hole machining. Background Technology

[0002] Countersunk hole machining is a machining process that involves punching through holes in a sheet metal and then cutting or punching tapered holes at a certain angle into those through holes. The main functions of countersunk holes include: **Connection:** Countersunk holes can be used in conjunction with drawn holes for riveting connections; they can also be used with rivets or screws to make the rivet or screw heads flush with the workpiece surface, thus achieving a connection. **Decorative:** Countersunk holes can accommodate LED lights and can be used with flat protrusions for press-fit connections without holes.

[0003] When performing countersinking, positioning fixtures are required. These fixtures use threaded drives to clamp the workpiece, which takes a long time and results in slow clamping. This prevents the user from quickly clamping the workpiece, requiring a significant amount of time to fix it in place and thus affecting the user's positioning speed. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a quick positioning fixture for countersunk hole machining, which has the advantage of being able to quickly position the workpiece and solves the problem that positioning fixtures cannot quickly position the workpiece.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick positioning fixture for countersunk hole machining, comprising: A positioning fixture, comprising a work plate, wherein a protective shell is fixedly connected to the top of the front side of the work plate, and a protective plate is fixedly connected to the bottom of the front side of the work plate; A clamping plate, wherein the clamping plate is disposed on the front side of the working plate; The transmission mechanism includes a motor, which is fixedly connected to the front of the inner wall of the protective shell. An elliptical disk is fixedly connected to the output end of the motor. Push plates are movably connected to the top and bottom of the surface of the elliptical disk. A push rod is provided at the top of the push plate, and the top of the push rod penetrates through the protective plate and extends to the outside of the protective plate. A push rod is provided at the bottom of the push plate, and the bottom of the push rod penetrates through the protective plate and extends to the outside of the protective plate. Return springs are fixedly connected to both ends of the outer side of the push plate, and the end of the return spring away from the push plate is fixedly connected to the inside of the protective plate.

[0006] In a preferred embodiment of this utility model, the clamping plate includes a bottom clamping plate, which is movably connected to the bottom of the front of the working plate. A top clamping plate is provided on the top of the bottom clamping plate. Transmission plates are fixedly connected to both sides of the bottom clamping plate. A protective plate is fixedly connected to the top of the transmission plate. The bottom of the protective plate is fixedly connected to the top of the first push rod, and the top of the top clamping plate is fixedly connected to the bottom of the second push rod.

[0007] As a preferred embodiment of this utility model, sliders are fixedly connected to both sides of the push plate, and sliding grooves are provided on both sides of the inner wall of the protective shell, with the sliding grooves slidably connected to the sliders.

[0008] As a preferred embodiment of this utility model, guide grooves are provided on both sides of the working plate, and guide blocks are slidably connected inside the guide grooves. The outer side of the guide blocks is fixedly connected to the inner side of the transmission plate.

[0009] As a preferred embodiment of this utility model, a positioning groove is provided on the inner side of the push plate, and the interior of the positioning groove is slidably connected to the surface of the elliptical disk.

[0010] In a preferred embodiment of this invention, the bottom of the first push rod is fixedly connected to the top of the push plate, and the top of the second push rod is fixedly connected to the bottom of the push plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting a transmission mechanism, can transmit power to the top clamping plate and the bottom clamping plate, and quickly clamp the workpiece through the top clamping plate and the bottom clamping plate. The user does not need to spend a lot of time fixing the workpiece, and can quickly position the workpiece, thereby ensuring the user's positioning speed.

[0012] 2. This utility model can fix the workpiece by setting a clamping plate. The clamping plate is driven by a transmission mechanism, which moves the top clamping plate downward and drives the protective plate upward. The protective plate drives the transmission plate upward, and the transmission plate drives the bottom clamping plate upward. The workpiece is quickly positioned by moving the top clamping plate downward and the bottom clamping plate upward.

[0013] 3. This utility model can guide the push plate by setting a slider and a groove, preventing the push plate from deviating when moving. By setting the push plate, the push rod one and the push rod two can be driven, thus making it convenient for users to use. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present utility model; Figure 2 This utility model Figure 1 A three-dimensional cross-sectional view of the inner protective shell; Figure 3 This utility model Figure 1 A three-dimensional structural diagram of the transmission mechanism; Figure 4 This utility model Figure 1 3D structural diagram of the guide groove.

[0015] In the diagram: 1. Positioning fixture; 101. Working plate; 102. Protective shell; 103. Protective plate; 2. Clamping plate; 21. Bottom clamping plate; 22. Top clamping plate; 23. Transmission plate; 24. Protective plate; 3. Transmission mechanism; 31. Motor; 32. Elliptical disk; 33. Push plate; 34. Push rod one; 35. Push rod two; 36. Return spring; 4. Slider; 5. Slide groove; 6. Guide groove; 7. Guide block; 8. Positioning groove. Detailed Implementation

[0016] 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 protection scope of the present utility model.

[0017] like Figures 1 to 4 As shown, the present invention provides a quick positioning fixture for countersunk hole machining, comprising: Positioning fixture 1 includes a working plate 101, a protective shell 102 is fixedly connected to the top of the front of the working plate 101, and a protective plate 103 is fixedly connected to the bottom of the front of the working plate 101. Clamping plate 2 is disposed on the front side of the work plate 101; The transmission mechanism 3 includes a motor 31, which is fixedly connected to the front of the inner wall of the protective shell 102. An elliptical disk 32 is fixedly connected to the output end of the motor 31. The front of the elliptical disk 32 is welded to the output end of the motor 31. Push plates 33 are movably connected to the top and bottom of the surface of the elliptical disk 32. The push plates 33 are slidably connected to the surface of the elliptical disk 32. A push rod 34 is provided on the top of the push plate 33. The bottom of the push rod 34 is fixedly connected to the push plate 33 by bolts and nuts. The top of the push rod 34 penetrates the protective plate 103 and extends to the outside of the protective plate 103. The top of the push rod 34 is fixedly connected to the protective plate 24 by bolts and nuts. The bottom of the push plate 33 is provided with a push rod 35. The bottom of the push plate 33 and the top of the push rod 35 are fixedly connected by bolts and nuts. The bottom of the push rod 35 passes through the protective plate 103 and extends to the outside of the protective plate 103. The bottom of the push rod 35 is fixedly connected to the top of the top clamping plate 22 by bolts and nuts. Both ends of the outer side of the push plate 33 are fixedly connected with a return spring 36. The two ends of the outer side of the push plate 33 are welded to the return spring 36. The end of the return spring 36 away from the push plate 33 is fixedly connected to the inside of the protective plate 103. The side of the return spring 36 close to the protective plate 103 is fixedly connected to the inside of the protective plate 103 by bolts and nuts.

[0018] refer to Figure 3 The clamping plate 2 includes a bottom clamping plate 21, which is movably connected to the bottom of the front of the working plate 101. A top clamping plate 22 is provided on the top of the bottom clamping plate 21. Transmission plates 23 are fixedly connected to both sides of the bottom clamping plate 21. A protective plate 24 is fixedly connected to the top of the transmission plate 23. The bottom of the protective plate 24 is fixedly connected to the top of the push rod 34. The top of the top clamping plate 22 is fixedly connected to the bottom of the push rod 35.

[0019] As a technical optimization of this utility model, the workpiece can be fixed by setting a clamping plate 2. The clamping plate 2 is driven by the transmission mechanism 3, which causes the top clamping plate 22 to move downward and at the same time drives the protective plate 24 to move upward. The protective plate 24 drives the transmission plate 23 to move upward, and the transmission plate 23 drives the bottom clamping plate 21 to move upward. The workpiece is quickly positioned by the downward movement of the top clamping plate 22 and the upward movement of the bottom clamping plate 21.

[0020] refer to Figure 2 Both sides of the push plate 33 are fixedly connected to sliders 4, and both sides of the inner wall of the protective shell 102 are provided with sliding grooves 5, which are slidably connected to sliders 4.

[0021] As a technical optimization of this utility model, by setting the slider 4 and the groove 5, the push plate 33 can be guided to prevent the push plate 33 from deviating when moving. By setting the push plate 33, the push rod 34 and the push rod 35 can be driven, thus making it convenient for the user to use.

[0022] refer to Figure 4 The working plate 101 has guide grooves 6 on both sides, and guide blocks 7 are slidably connected inside the guide grooves 6. The outer side of the guide blocks 7 is fixedly connected to the inner side of the transmission plate 23.

[0023] As a technical optimization of this utility model, by setting the guide groove 6 and the guide block 7, the transmission plate 23 can be positioned to prevent the transmission plate 23 from shifting when moving. By setting the work plate 101, the workpiece can be fixed to prevent the workpiece from shaking.

[0024] refer to Figure 3 The inner side of the push plate 33 is provided with a positioning groove 8, and the interior of the positioning groove 8 is slidably connected to the surface of the elliptical disk 32.

[0025] As a technical optimization of this utility model, by setting the positioning groove 8, the elliptical disk 32 can be located inside the push plate 33, preventing the elliptical disk 32 from separating from the push plate 33 when the vibration of the motor 31 drives the elliptical disk 32 to vibrate.

[0026] refer to Figure 2 The bottom of push rod 34 is fixedly connected to the top of push plate 33, and the top of push rod 35 is fixedly connected to the bottom of push plate 33.

[0027] As a technical optimization of this utility model, by fixing the bottom of the push rod 34 to the top of the push plate 33, the push plate 33 can transmit power to the push rod 34. By fixing the top of the push rod 35 to the bottom of the push plate 33, the push plate 33 can transmit power to the push rod 35.

[0028] The working principle and usage process of this utility model are as follows: When in use, the user first places the workpiece at the bottom of the front of the work plate 101, and then drives the motor 31. The motor 31 drives the elliptical disk 32 to rotate, and the elliptical disk 32 drives the push plate 33 to move outward. The push plate 33 drives the push rod 1 34 to move upward, and at the same time drives the push rod 25 to move downward. The push rod 1 34 drives the protective plate 24 to move upward, and the protective plate 24 drives the transmission plate 23 to move upward. The transmission plate 23 drives the bottom clamping plate 21 to move upward, and the push rod 25 drives the top clamping plate 22 to move downward. The workpiece is fixed by the bottom clamping plate 21 and the top clamping plate 22 to avoid threaded transmission.

[0029] In summary, this countersunk hole machining quick positioning fixture, through the transmission mechanism 3, can transmit power to the top clamping plate 22 and the bottom clamping plate 21, and quickly clamp the workpiece through the top clamping plate 22 and the bottom clamping plate 21. Users do not need to spend a lot of time fixing the workpiece, and can quickly position the workpiece, thereby ensuring the user's positioning speed.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick positioning fixture for countersunk hole machining, characterized in that, include: The positioning fixture (1) includes a working plate (101), a protective shell (102) is fixedly connected to the top of the front side of the working plate (101), and a protective plate (103) is fixedly connected to the bottom of the front side of the working plate (101). A clamping plate (2) is disposed on the front side of the working plate (101); The transmission mechanism (3) includes a motor (31), which is fixedly connected to the front of the inner wall of the protective shell (102). An elliptical disk (32) is fixedly connected to the output end of the motor (31). A push plate (33) is movably connected to the top and bottom of the surface of the elliptical disk (32). A push rod (34) is provided on the top of the push plate (33). The top of the push rod (34) penetrates the protective plate (103) and extends to the outside of the protective plate (103). A push rod (35) is provided on the bottom of the push plate (33). The bottom of the push rod (35) penetrates the protective plate (103) and extends to the outside of the protective plate (103). A return spring (36) is fixedly connected to both ends of the outer side of the push plate (33). The end of the return spring (36) away from the push plate (33) is fixedly connected to the inside of the protective plate (103).

2. The quick positioning fixture for countersunk hole machining according to claim 1, characterized in that: The clamping plate (2) includes a bottom clamping plate (21), which is movably connected to the bottom of the front of the working plate (101). A top clamping plate (22) is provided on the top of the bottom clamping plate (21). A transmission plate (23) is fixedly connected to both sides of the bottom clamping plate (21). A protective plate (24) is fixedly connected to the top of the transmission plate (23). The bottom of the protective plate (24) is fixedly connected to the top of the first push rod (34). The top of the top clamping plate (22) is fixedly connected to the bottom of the second push rod (35).

3. The quick positioning fixture for countersunk hole machining according to claim 2, characterized in that: Both sides of the push plate (33) are fixedly connected to sliders (4), and both sides of the inner wall of the protective shell (102) are provided with sliding grooves (5), and the sliding grooves (5) are slidably connected to the sliders (4).

4. A quick positioning fixture for countersunk hole machining according to claim 3, characterized in that: The working plate (101) has guide grooves (6) on both sides, and guide blocks (7) are slidably connected inside the guide grooves (6). The outer side of the guide blocks (7) is fixedly connected to the inner side of the transmission plate (23).

5. A quick positioning fixture for countersunk hole machining according to claim 4, characterized in that: The inner side of the push plate (33) is provided with a positioning groove (8), and the interior of the positioning groove (8) is slidably connected to the surface of the elliptical disk (32).

6. A quick positioning fixture for countersunk hole machining according to claim 5, characterized in that: The bottom of the first push rod (34) is fixedly connected to the top of the push plate (33), and the top of the second push rod (35) is fixedly connected to the bottom of the push plate (33).