A fixture for thin film peel test

Abstract

The utility model relates to special fixture technical field, and disclose a kind of special fixture of film peeling test, including bottom plate, fixed mounting is equipped with riser on bottom plate, drive assembly is installed on riser, drive assembly is installed with moving seat, while fixed seat corresponding with moving seat is installed on bottom plate, clamp body is installed on moving seat and fixed seat, two clamp bodies are clamped to the both ends of film body.The utility model is pulled the upper side of handle and rotates downward, the sleeve body of pull rod end portion is sleeved on the convex column, front clamping plate synchronous motion with pull rod, realize that front clamping plate is away from back clamping plate, back clamping plate and front clamping plate are quickly separated, and the end of film body for clamping is taken out or put in simultaneously can realize synchronous control.

Description

Technical Field

[0001] This utility model relates to the field of special fixture technology, specifically a special fixture for thin film peel testing. Background Technology

[0002] Thin film peel strength testing is a key method for evaluating the interfacial adhesion of materials, and it is widely used in electronic packaging (such as OCA adhesive for flexible screens), photovoltaic backsheets, medical dressings, and other fields. The accuracy of the test directly affects the determination of product quality, and fixture design is the core element to ensure the reliability of the test results.

[0003] The prior art discloses CN209432314U "A film peel test fixture", which adopts a traditional spiral fixture (relying on bolts to lock point by point (101), requiring multiple bolts to be rotated for each clamping, taking ≥3 minutes, which cannot meet the needs of rapid sampling inspection in production lines;

[0004] In addition, existing technologies disclose pneumatic synchronization clamps that achieve synchronization of double clamps through cylinder linkage, but they require an external air source and have a complex structure, making them difficult to popularize in portable devices or small and medium-sized laboratories. Utility Model Content

[0005] The purpose of this utility model is to provide a special fixture for film peel testing, which solves the problem of cumbersome clamping or complex structure of transmission fixtures.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a special fixture for film peel testing, including a base plate, a stand fixedly installed on the base plate, a drive assembly installed on the stand, a movable seat installed on the drive assembly, and a fixed seat corresponding to the movable seat installed on the base plate. Both the movable seat and the fixed seat are equipped with fixture bodies, and the two fixture bodies clamp the two ends of the film body.

[0008] Furthermore, the drive assembly includes at least a lead screw and a motor. The motor is mounted on the top of the stand, and the input end of the motor is connected to the lead screw installed inside the stand. A movable seat is fitted onto the lead screw.

[0009] Furthermore, the clamp body includes a base, a front clamping plate, and a connector. The base and the front clamping plate are connected by the connector, and the base is mounted on a movable seat or a fixed seat.

[0010] Furthermore, the base includes a connecting plate and a back clamping plate. The connecting plate has a slot and a snap-fit ​​block on its opposite sides. The snap-fit ​​block is sleeved on the movable base or the fixed base. The back clamping plate has a protrusion on one side and the protrusion is fitted into the slot.

[0011] Furthermore, the front clamp plate has protruding posts on both opposite sides. The connector includes a mounting base, and two mounting bases are respectively installed on both sides of the connecting plate. The mounting bases are distributed correspondingly to the connecting plate. A pull rod is installed in the mounting base. One end of the pull rod is provided with a sleeve that fits onto the protruding post. The other end of the pull rod is provided with an elastic component. Both pull rods are connected to the handle. The connection end of the handle has an eccentric structure.

[0012] Furthermore, the elastic component includes a spring and a nut, both of which are sleeved on the pull rod. The nut is installed at the end of the pull rod and limits the spring.

[0013] Furthermore, a protruding ring is provided on one side of the mounting base, and a sleeve is fitted onto the protruding ring. The sleeve is fitted onto the pull rod, and one end of the sleeve is provided with an inclined surface. A sliding sleeve fitted onto the pull rod is provided at the end near the inclined surface.

[0014] This utility model has the following beneficial effects:

[0015] When the upper side of the handle of this invention is pulled downward, the sleeve at the end of the pull rod is sleeved on the protrusion, and the front clamping plate moves synchronously with the pull rod, so that the front clamping plate moves away from the back clamping plate and the back clamping plate and the front clamping plate are quickly separated, which facilitates the removal or insertion of the end of the clamped film body and can achieve synchronous control at the same time.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

[0018] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0019] Figure 2 This is a partial schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the fixture body of this utility model;

[0021] Figure 4 This is an exploded view of the fixture body of this utility model;

[0022] Figure 5 This is a partial schematic diagram of the connector of this utility model. Figure 1 ;

[0023] Figure 6 This is a partial schematic diagram of the connector of this utility model. Figure 2 ;

[0024] Figure 7 This is an exploded view of the connector of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] In the diagram: 1. Base plate; 2. Stand; 3. Drive assembly; 4. Moving seat; 5. Fixed seat; 6. Fixture body; 601. Base; 6011. Connecting plate; 6012. Slot; 6013. Snap-fit ​​block; 6014. Back clamp plate; 6015. Protrusion; 602. Front clamp plate; 6021. Protruding post; 603. Connector; 6031. Mounting seat; 6032. Protruding ring; 6033. Pull rod; 6034. Sleeve body; 6035. Sliding sleeve; 6036. Spring; 6037. Nut; 6038. Connecting sleeve; 6039. Handle; 7. Membrane body. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0028] Please see Figures 1-7 As shown, this utility model is a special fixture for film peeling test, including a base plate 1, a stand 2 fixedly installed on the base plate 1, a drive assembly 3 installed on the stand 2, a movable seat 4 installed on the drive assembly 3, and a fixed seat 5 corresponding to the movable seat 4 installed on the base plate 1. A fixture body 6 is installed on both the movable seat 4 and the fixed seat 5. The two fixture bodies 6 clamp the two ends of the film body 7.

[0029] During the testing process, after tearing a portion of one end of the film body 7, the torn end is fixed to two clamp bodies 6 distributed vertically. The upright frame 2 drives the moving seat 4 and the connected clamp bodies 6 to move upward, thus starting the test. For specific testing steps, refer to existing film peeling test equipment.

[0030] The drive assembly 3 includes at least a lead screw and a motor. The motor is installed at the top of the support frame 2. The input end of the motor is connected to the lead screw installed inside the support frame 2. A movable seat 4 is installed on the lead screw.

[0031] A vertically distributed through groove is provided on one vertical side of the support frame 2. The movable seat 4 moves up and down along the through groove. One end of the movable seat 4 is provided with a screw hole that cooperates with the lead screw. The motor drives the lead screw to rotate, thereby driving the movable seat 4 to move.

[0032] The fixture body 6 includes a base 601, a front clamping plate 602 and a connector 603. The base 601 and the front clamping plate 602 are connected by the connector 603. The base 601 is mounted on the movable seat 4 or the fixed seat 5.

[0033] The connector 603 controls the two bases 601 and the front clamp 602 to move closer or further apart from each other.

[0034] like Figure 4 As shown, the base 601 includes a connecting plate 6011 and a back clamping plate 6014. The connecting plate 6011 has a slot 6012 and a snap-fit ​​block 6013 on its opposite sides. The snap-fit ​​block 6013 is sleeved on the movable base 4 or the fixed base 5. The back clamping plate 6014 has a protrusion 6015 on one side. The protrusion 6015 is fitted into the slot 6012.

[0035] The snap-fit ​​block 6013 is sleeved on the end of the movable seat 4 or the fixed seat 5, and is fixed by bolts passing through the side wall of the snap-fit ​​block 6013 and the corresponding movable seat 4 or fixed seat 5.

[0036] Meanwhile, both the slot 6012 and the protrusion 6015 have T-shaped cross sections. After the slot 6012 and the protrusion 6015 are installed, they are fixed by bolts passing through the sidewalls of the protrusion 6015 and the slot 6012.

[0037] Both the clamping surfaces of the back clamping plate 6014 and the front clamping plate 602 are corrugated. After the corrugated surfaces press the ends of the film body 7, they increase the contact area, thereby increasing the friction.

[0038] like Figures 5-7 As shown, the front clamping plate 602 has protrusions 6021 on both opposite sides. The connector 603 includes a mounting base 6031. The mounting base 6031 has two parts respectively installed on both sides of the connecting plate 6011. The mounting base 6031 and the connecting plate 6011 are correspondingly distributed. A pull rod 6033 is installed in the mounting base 6031. One end of the pull rod 6033 has a sleeve 6034 that is sleeved on the protrusion 6021. The other end of the pull rod 6033 is equipped with an elastic component. Both pull rods 6033 are connected to the handle 6039. The connection end of the handle 6039 has an eccentric structure.

[0039] When the upper side of the handle 6039 is pulled downward, the peripheral side of the eccentric structure at the end of the handle 6039 slides along the surface of the mounting base 6031 until the handle 6039 is in a horizontal state. At this time, the connection between the handle 6039 and the pull rod 6033 is away from the mounting base 6031, thereby pulling the connecting plate 6011 to move to one side of the front clamping plate 602.

[0040] Since the sleeve 6034 at the end of the pull rod 6033 is sleeved on the protrusion 6021, the front clamping plate 602 moves synchronously with the pull rod 6033, so that the front clamping plate 602 moves away from the back clamping plate 6014.

[0041] After the back clamp 6014 is separated from the front clamp 602, it is convenient to remove or insert the end of the clamped film body 7.

[0042] Conversely, when the front clamping plate 602 is close to the back clamping plate 6014, the end of the film body 7 can be clamped.

[0043] The elastic component includes a spring 6036 and a nut 6037. Both the spring 6036 and the nut 6037 are sleeved on the pull rod 6033. The nut 6037 is installed at the end of the pull rod 6033 and limits the spring 6036.

[0044] A protruding ring 6032 is provided on one side of the mounting base 6031. A sleeve 6038 is sleeved on the protruding ring 6032. The sleeve 6038 is sleeved on the pull rod 6033. One end of the sleeve 6038 is provided with a bevel. A sliding sleeve 6035 is provided near the bevel and sleeved on the pull rod 6033.

[0045] Because the film body 7 is relatively thin during the testing process, the front clamping plate 602 and the back clamping plate 6014 need to be tightly fitted. Through the installed sleeve 6038, a rear rod is installed on the sleeve 6038. By moving the rod, the sleeve 6038 is rotated. When the sleeve 6038 rotates, the guide rod on the sliding sleeve 6035 moves along the inclined surface of the sleeve 6038 until it moves to the plane provided at the end of the inclined surface, thereby pushing the sliding sleeve 6035 closer to the nut 6037, increasing the compression of the spring 6036, thereby increasing the pressure between the front clamping plate 602 and the back clamping plate 6014 and improving the reliability of the clamping.

[0046] When clamping, first rotate handle 6039 to compress spring 6036, then rotate sleeve 6038 to compress spring;

[0047] When reopened, the opposite occurs;

[0048] By increasing the compression length of the spring 6036 through the installed socket 6038, a handle 6039 with a smaller eccentric length can be used, reducing the compression length of the spring 6036 during the rotation of the handle 6039. This reduces the force exerted by the spring on the handle 6039 when it changes from a horizontal to a vertical position.

[0049] The fixture body 6 is composed of a mechanical structure, which is easy to install and carry.

[0050] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A special fixture for film peel testing, comprising a base plate (1), characterized in that: A support frame (2) is fixedly installed on the base plate (1), and a drive assembly (3) is installed on the support frame (2). A movable seat (4) is installed on the drive assembly (3), and a fixed seat (5) corresponding to the movable seat (4) is installed on the base plate (1). Both the movable seat (4) and the fixed seat (5) are equipped with clamp bodies (6), and the two clamp bodies (6) clamp the two ends of the film body (7).

2. The special fixture for film peel testing according to claim 1, characterized in that: The drive assembly (3) includes at least a lead screw and a motor; A motor is installed at the top of the support frame (2), and the input end of the motor is connected to a lead screw installed inside the support frame (2). A movable seat (4) is installed on the lead screw.

3. The special fixture for film peel testing according to claim 1, characterized in that: The clamp body (6) includes a base (601), a front clamping plate (602), and a connector (603); The base (601) and the front clamp (602) are connected by a connector (603); The base (601) is mounted on the movable base (4) or the fixed base (5).

4. A special fixture for film peel testing according to claim 3, characterized in that: The base (601) includes a connecting plate (6011) and a back clamping plate (6014). The connecting plate (6011) has a slot (6012) and a snap-fit ​​block (6013) on its opposite sides, and the snap-fit ​​block (6013) is sleeved on the movable seat (4) or the fixed seat (5); The back clamp (6014) has a protrusion (6015) on one side, and the protrusion (6015) is fitted into the slot (6012).

5. A special fixture for film peel testing according to claim 3, characterized in that: The front clamp (602) has protruding posts (6021) on both opposite sides. The connector (603) includes a mounting base (6031); The mounting base (6031) has two parts respectively installed on both sides of the connecting plate (6011), and the mounting base (6031) and the connecting plate (6011) are correspondingly distributed; A pull rod (6033) is installed inside the mounting base (6031), and one end of the pull rod (6033) is provided with a sleeve (6034) that is sleeved on the protrusion (6021). The other end of the pull rod (6033) is equipped with an elastic component; Both of the pull rods (6033) are connected to the handle (6039), and the connection end of the handle (6039) is an eccentric structure.

6. A special fixture for film peel testing according to claim 5, characterized in that: The elastic component includes a spring (6036) and a nut (6037), both of which are sleeved on the pull rod (6033). The nut (6037) is installed at the end of the pull rod (6033) and limits the spring (6036).

7. A special fixture for film peel testing according to claim 6, characterized in that: A protruding ring (6032) is provided on one side of the mounting base (6031), and a sleeve (6038) is sleeved on the protruding ring (6032), and the sleeve (6038) is sleeved on the pull rod (6033); One end of the sleeve (6038) is provided with an inclined surface, and the end near the inclined surface is provided with a sliding sleeve (6035) that is sleeved on the pull rod (6033).

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