High-precision clamping jig
By designing a high-precision clamping fixture and using a two-way lead screw and synchronous drive mechanism to achieve two-way clamping around the mobile phone frame, the problems of slow adaptation and deformation of traditional fixtures are solved, thereby improving processing accuracy and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional clamping fixtures are difficult to adapt quickly to different models in the processing of mobile phone mid-frames, resulting in improper clamping force causing deformation, affecting processing accuracy and product yield, and failing to meet the needs of multi-variety, small-batch production.
A high-precision clamping fixture comprising a platform, a placement rack, a first slider, a second slider, a clamping plate, and a synchronous drive mechanism was designed. The fixture achieves synchronous clamping of the mobile phone frame around its perimeter through a bidirectional lead screw and an adjusting lever. The fixture also improves clamping stability by combining a flexible clamping plate and anti-slip texture, and uses scale lines and reference points for precise adjustment.
It enables adaptation and adjustment according to the specifications of the mobile phone frame, avoiding deformation, improving clamping efficiency and stability, and meeting the needs of multi-variety, small-batch production.
Smart Images
Figure CN224026711U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to workpiece processing technical field, concretely relates to a high-precision clamping fixture. BACKGROUND
[0002] With the wide application of laser processing technology in 3C electronic manufacturing field, the production efficiency and processing precision of electronic products such as smart phones have been significantly improved, the machining quality of the middle frame of the mobile phone as one of the core structural parts of the smart phone directly influences the assembly precision and performance of the whole machine, the middle frame of the mobile phone is deformed due to improper clamping in the laser processing process, influences the processing precision and product yield, although the traditional clamping fixture can clamp the periphery of the middle frame of the mobile phone and has high clamping stability, the clamping force of the periphery of the middle frame of the mobile phone is generally one-way clamping force, if the clamping force is large, and the size difference of different models of the middle frame of the mobile phone is large, the traditional fixture is difficult to quickly adapt, the change type efficiency is low, and the production demand of multiple varieties and small batches cannot be met, therefore, a high-precision clamping fixture is urgently needed. SUMMARY
[0003] The utility model discloses to the defects and insufficient of prior art, provide a kind of high-precision clamping fixture with reasonable design, to solve above-mentioned problems.
[0004] To achieve the above object, the utility model adopts the following technical scheme: it contains platform and placing rack, four placing racks are arranged on the upper part of the platform in a movable manner;
[0005] It also contains:
[0006] No. The slider is two, and is slidably arranged in the first sliding slot formed in the front and rear sides of the upper part of the platform respectively, the two first sliders are fixedly connected with the placing racks on the left and right sides respectively, a first bidirectional screw is rotatably arranged in the two first sliding slots through a bearing, the first slider is rotatably sleeved on the first bidirectional screw through a thread, and a first adjusting handle is fixedly arranged at the front end of the first bidirectional screw after penetrating through the platform.
[0007] No. The slider is two, and is slidably arranged in the first sliding slot formed in the front and rear sides of the upper part of the platform respectively, the two first sliders are fixedly connected with the placing racks on the left and right sides respectively, a first bidirectional screw is rotatably arranged in the two first sliding slots through a bearing, the first slider is rotatably sleeved on the first bidirectional screw through a thread, and a first adjusting handle is fixedly arranged at the front end of the first bidirectional screw after penetrating through the platform.
[0008] No. The slider is two, and is slidably arranged in the first sliding slot formed in the front and rear sides of the upper part of the platform respectively, the two first sliders are fixedly connected with the placing racks on the left and right sides respectively, a first bidirectional screw is rotatably arranged in the two first sliding slots through a bearing, the first slider is rotatably sleeved on the first bidirectional screw through a thread, and a first adjusting handle is fixedly arranged at the front end of the first bidirectional screw after penetrating through the platform.
[0009] Clamping plates, eight, respectively, active resistance to set in four shelves on both sides of the upper part, the shelf is movably provided with two movable blocks, a spring is fixedly arranged on the movable block, one end of the spring is fixedly connected with the inner wall of the shelf, two connecting rods are hinged on the movable block, one end of the connecting rod is hinged with the clamping plate;
[0010] Extrusion blocks, eight, respectively, fixedly arranged at the bottom of the eight movable blocks, the platform is provided with a synchronous drive mechanism matched with the movable block.
[0011] Further, the synchronous drive mechanism comprises:
[0012] Connecting slide rods, four, are fixedly arranged at the bottom of the platform, the lower end of the four connecting slide rods is fixedly arranged with a connecting plate, an electric push rod is fixedly arranged on the upper part of the connecting plate;
[0013] Lifting plate, the lifting plate is fixedly arranged on the upper end of the electric push rod, and the lifting plate is movably arranged on the four connecting slide rods;
[0014] Extrusion plates, eight, respectively, movably arranged in the two strip-shaped grooves formed in the bottom of the four shelves, the extrusion blocks are movably arranged in cooperation with the inclined side walls of the extrusion plates, and the extrusion plates are fixedly arranged on the lifting plate after passing through the platform.
[0015] Further, two guide rods are fixedly arranged on the side wall of the clamping plate, and the guide rods are movably inserted into the shelf.
[0016] Further, a flexible clamping plate is fixedly arranged on the side wall of the clamping plate above the position of the guide rod, and the flexible clamping plate is provided with anti-skid lines.
[0017] Further, a positioning groove is formed in the upper part of the shelf, and the positioning groove is arranged in an arc-shaped structure.
[0018] Further, a scale line is arranged on the upper part of the platform at one side of the shelf, and a reference point matched with the scale line is arranged on the side wall of the shelf.
[0019] Compared with the prior art, the high-precision clamping fixture has the advantages that: the high-precision clamping fixture can be adjusted according to the specifications of the mobile phone middle frame, and can clamp the four side walls of the mobile phone middle frame in a bidirectional synchronous manner, so that the clamping efficiency is high, and the mobile phone middle frame is not deformed by the clamping force from different directions, thereby affecting the machining precision. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the structural schematic diagram of the utility model.
[0021] Figure 2 This is an exploded view of the parts of the first slider, the first bidirectional lead screw, the first adjusting handle, the second slider, the second bidirectional lead screw, and the second adjusting handle in this utility model.
[0022] Figure 3 This is a cross-sectional view of the placement rack in this utility model.
[0023] Figure 4 This is an exploded view of the parts of the placement frame, clamping plate, connecting rod, guide rod and flexible clamping plate in this utility model.
[0024] Figure 5 This is a three-dimensional structural view of the bottom front side of this utility model.
[0025] Explanation of reference numerals in the attached figures:
[0026] Platform 1, Placement rack 2, Slider 1 3, Slide 1 4, Double-acting screw 1 5, Adjustment handle 1 6, Slider 2 7, Slide 2 8, Double-acting screw 2 9, Adjustment handle 2 10, Clamping plate 11, Movable block 12, Spring 13, Connecting rod 14, Pressing block 15, Synchronous drive mechanism 16, Connecting slide rod 16-1, Connecting plate 16-2, Lifting plate 16-3, Pressing plate 16-4, Electric push rod 16-5, Strip groove 17, Guide rod 18, Flexible clamping plate 19, Anti-slip texture 20, Positioning groove 21, Scale line 22, Reference point 23. Detailed Implementation
[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] like Figures 1-5 As shown, this specific embodiment adopts the following technical solution: It includes a platform 1 and a placement rack 2. Four placement racks 2 are movably abutted on the upper part of the platform 1. The upper part of the placement rack 2 is provided with a positioning groove 21, and the positioning groove 21 is set with an arc structure. The positioning groove 21 can provide a centering guide for the mobile phone frame placed on the placement rack 2, so as to avoid the mobile phone frame from shifting position on the placement rack 2. The upper part of the platform 1 is provided with a scale line 22 on one side of the placement rack 2. The side wall of the placement rack 2 is provided with a reference point 23 that cooperates with the scale line 22. Through the cooperation of the scale line 22 and the reference point 23, the staff can know the specific position of the placement rack 2 on the platform 1, so as to facilitate the staff to make precise adjustments to the placement rack 2.
[0029] It also includes:
[0030] Two sliders 3 are slidably installed in the first slide grooves 4 opened on the front and rear sides of the upper part of the platform 1. The two sliders 3 are fixedly connected to the placement racks 2 on the front and rear sides respectively. The first double-acting screw 5 is rotatably installed in the two slide grooves 4 through bearings. The slider 3 is rotatably mounted on the first double-acting screw 5 through the thread. The front end of the first double-acting screw 5 passes through the platform 1 and is fixedly installed with the first adjustment handle 6.
[0031] The second slider 7 consists of two sliders, which are slidably installed in the second slide grooves 8 opened on the left and right sides of the upper part of the platform 1, and the two second sliders 7 are fixedly connected to the placement racks 2 on the left and right sides respectively.
[0032] The second bidirectional lead screw 9 is rotated through two second slide grooves 8 via bearings, and the second bidirectional lead screw 9 is located below the first bidirectional lead screw 5. The second slider 7 is rotated on the second bidirectional lead screw 9 via threads. The front end of the second bidirectional lead screw 9 passes through the platform 1 and is fixedly provided with the second adjustment handle 10.
[0033] Eight clamping plates 11 are provided, each movably abutting against the upper sides of four placement racks 2. Two movable blocks 12 are movably disposed within each placement rack 2. Springs 13 are fixedly mounted on each movable block 12, with one end of each spring fixedly connected to the inner wall of the placement rack 2. Two connecting rods 14 are hinged to each movable block 12, with one end of each connecting rod hinged to the clamping plates 11. Two guide rods 18 are fixedly mounted on the side walls of the clamping plates 11, and these guide rods 18 are movably inserted into the placement racks 2. The guide rod 18 can provide auxiliary guidance for the movement of the clamping plate 11, thereby effectively improving the movement stability of the clamping plate 11. A flexible clamping plate 19 is fixedly installed on the side wall of the clamping plate 11 above the guide rod 18, and the flexible clamping plate 19 is provided with anti-slip texture 20. The flexible characteristics of the flexible clamping plate 19 can realize flexible clamping of the workpiece, which can not only avoid damage to the workpiece due to excessive clamping force, but also improve the clamping stability of the workpiece by utilizing the anti-slip texture 20.
[0034] The extrusion block 15 consists of eight blocks, which are fixedly installed at the bottom of eight movable blocks 12 respectively. The platform 1 is provided with a synchronous drive mechanism 16 that cooperates with the movable blocks 12.
[0035] The synchronous drive mechanism 16 includes:
[0036] Connecting slide rod 16-1, there are four connecting slide rods 16-1, all of which are fixedly installed at the bottom of the platform 1. The lower ends of the four connecting slide rods 16-1 are fixedly installed to the connecting plate 16-2. An electric push rod 16-5 is fixedly installed in the middle of the upper part of the connecting plate 16-2.
[0037] The lifting plate 16-3 is fixedly installed on the upper end of the electric push rod 16-5, and the lifting plate 16-3 is movably sleeved on the four connecting slide rods 16-1.
[0038] The extrusion plates 16-4, of which there are eight, are movably and abuttingly disposed in two strip grooves 17 opened at the bottom of the four placement frames 2. The extrusion blocks 15 are movably and abuttingly disposed in cooperation with the inclined side walls of the extrusion plates 16-4. After passing through the platform 1, the extrusion plates 16-4 are fixedly disposed on the lifting plate 16-3. The electric push rod 16-5 can drive the eight extrusion plates 16-4 to move up and down through the lifting plate 16-3 to realize the synchronous extrusion of the eight extrusion blocks 15. With the cooperation of the movable block 12, spring 13, connecting rod 14 and clamping plate 11, bidirectional clamping of the side walls of the mobile phone frame is realized.
[0039] When using this invention, the first adjustment handle 6 and the second adjustment handle 10 can be rotated. The first adjustment handle 6 drives the first bidirectional lead screw 5 to rotate, causing the first sliders 3 on both sides to move synchronously in opposite directions. This allows the distance between the front and rear placement brackets 2 to be adjusted according to the width of the phone frame. The second adjustment handle 10 drives the second bidirectional lead screw 9 to rotate, causing the second sliders 7 on both sides to move synchronously in opposite directions. This allows the distance between the left and right placement brackets 2 to be adjusted according to the length of the phone frame. Then, the phone frame is placed on the four placement brackets 2. Start the electric push rod 16-5, which drives the lifting plate 16-3 to move upward. The lifting plate 16-3 drives the pressing plate 16-4 to move upward. At this time, the pressing block 15 moves under the pressure of the pressing plate 16-4 and compresses the spring 13. The pressing block 15 drives the movable block 12 to move, so that the two movable blocks 12 in the same placement frame 2 move synchronously in opposite directions. With the cooperation of the connecting rod 14, the clamping plate 11 can be moved closer to the upper center of the placement frame 2, so as to achieve synchronous bidirectional clamping of the side walls of the mobile phone frame.
[0040] Compared with the prior art, the beneficial effects of this utility model are:
[0041] By cooperating with slider 3, double-acting screw 5, adjusting handle 6, slider 7, double-acting screw 9, and adjusting handle 10, the clamping position can be adjusted according to the specifications of the mobile phone frame, thus greatly expanding the scope of application.
[0042] Through the cooperation of synchronous drive mechanism 16, clamping plate 11, movable block 12, spring 13, connecting rod 14 and pressing block 15, bidirectional synchronous clamping of the side walls of the mobile phone frame can be achieved. While having high clamping efficiency, it can also avoid the mobile phone frame from being deformed by clamping forces from different directions around the four sides, which would affect the processing accuracy.
[0043] The flexible clamping characteristics of the flexible clamping plate 19 can achieve flexible clamping of the workpiece, which can not only avoid damage to the workpiece due to excessive clamping force, but also improve the clamping stability of the workpiece by using the anti-slip texture 20.
[0044] By using the scale line 22 and the reference point 23, staff can understand the specific position of the placement rack 2 on the platform 1, so that staff can make precise adjustments to the placement rack 2.
[0045] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A high-precision clamping fixture, comprising a platform (1) and a mounting rack (2), wherein four mounting racks (2) are movably mounted on the upper part of the platform (1); Its features are: It also includes: Two sliders (3) are slidably installed in the first grooves (4) opened on the front and rear sides of the upper part of the platform (1). The two sliders (3) are fixedly connected to the placement racks (2) on the front and rear sides respectively. The first double screw (5) is rotatably installed in the two first grooves (4) through bearings. The slider (3) is rotatably mounted on the first double screw (5) through the thread. The front end of the first double screw (5) passes through the platform (1) and is fixedly installed with the first adjustment handle (6). The second slider (7) consists of two sliders, which are respectively slidably installed in the second slide groove (8) opened on the left and right sides of the upper part of the platform (1). The two second sliders (7) are respectively fixedly connected to the placement rack (2) on the left and right sides. The second bidirectional lead screw (9) is rotated through two second slide grooves (8) by bearings, and the second bidirectional lead screw (9) is located below the first bidirectional lead screw (5). The second slider (7) is rotated on the second bidirectional lead screw (9) by threads. The front end of the second bidirectional lead screw (9) passes through the platform (1) and is fixedly provided with the second adjustment handle (10). Clamping plates (11), there are eight clamping plates (11), which are respectively movably abutting against the upper sides of the four placement racks (2). Two movable blocks (12) are movably arranged inside the placement rack (2). A spring (13) is fixedly arranged on the movable block (12). One end of the spring (13) is fixedly connected to the inner wall of the placement rack (2). Two connecting rods (14) are hinged on the movable block (12). One end of the connecting rod (14) is hinged to the clamping plate (11). The extrusion block (15) consists of eight blocks, which are fixedly installed at the bottom of eight movable blocks (12). The platform (1) is provided with a synchronous drive mechanism (16) that cooperates with the movable blocks (12).
2. The high-precision clamping fixture according to claim 1, characterized in that: The synchronous drive mechanism (16) includes: Connecting slide rods (16-1), there are four connecting slide rods (16-1), all of which are fixedly installed at the bottom of the platform (1). The lower ends of the four connecting slide rods (16-1) are fixedly installed on the connecting plate (16-2). An electric push rod (16-5) is fixedly installed in the middle of the upper part of the connecting plate (16-2). The lifting plate (16-3) is fixedly installed on the upper end of the electric push rod (16-5), and the lifting plate (16-3) is movably sleeved on the four connecting slide rods (16-1); The extrusion plates (16-4) are eight in number and are respectively movably abutting in the two strip grooves (17) opened at the bottom of the four placement racks (2). The extrusion block (15) is movably abutting in cooperation with the inclined side wall of the extrusion plate (16-4). The extrusion plate (16-4) passes through the platform (1) and is fixedly mounted on the lifting plate (16-3).
3. The high-precision clamping fixture according to claim 1, characterized in that: Two guide rods (18) are fixedly installed on the side wall of the clamping plate (11), and the guide rods (18) are movably inserted into the placement frame (2).
4. The high-precision clamping fixture according to claim 1, characterized in that: A flexible clamping plate (19) is fixedly installed on the side wall of the clamping plate (11) above the guide rod (18), and the flexible clamping plate (19) is provided with anti-slip texture (20).
5. A high-precision clamping fixture according to claim 1, characterized in that: The placement rack (2) has a positioning groove (21) on its upper part, and the positioning groove (21) is an arc-shaped structure.
6. A high-precision clamping fixture according to claim 1, characterized in that: The platform (1) has a scale line (22) on one side of the placement rack (2), and the side wall of the placement rack (2) has a reference point (23) that matches the scale line (22).