Substrate film tearing clamping jaw mechanism

Abstract

The utility model discloses a substrate film tearing clamping jaw mechanism which comprises a primary film clamping assembly, a secondary film clamping assembly and a positioning assembly. The film tearing device is provided with a film clamping resistance alarm function and a clamping jaw position waste film detection optical fiber, compared with a traditional mode of manual film tearing or consumable film tearing, the probability that a substrate is damaged during film tearing is reduced, the structure is compact, the function is complete, the occupied space is small, and the film tearing action is simple; the jig can be matched with the film tearing clamping jaw mechanism, has an air blowing function, can assist in collecting waste films generated by film tearing, is good in compatibility, and can carry out film tearing work by replacing some jigs for common substrates with different widths and with notches in frames in the industry.

Description

Technical Field

[0001] The utility model belongs to the technical field of substrate film tearing, in particular to a substrate film tearing clamping claw mechanism. Background Art

[0002] In the semiconductor packaging and testing industry, in the back-end process, after attaching the chip to the lead frame, a layer of high-temperature resistant film needs to be attached to the back of the lead frame, and then the chip on the front of the lead frame can be plastic-sealed. After the plastic sealing is completed, a substrate with a film on the back and a plastic cover on the front is formed. Before proceeding to the next process, the film on the back of the substrate needs to be torn off.

[0003] In response to the need for film tearing of substrates, the industry generally adopts the method of manually tearing off the film on the back of the substrate. However, this film tearing method not only increases the cost of manual operation, but also the high temperature resistant film is not easy to tear off when it is not heated, and the substrate may be damaged during manual film tearing, causing certain losses. Therefore, in response to the above problems, a substrate film tearing clamp mechanism provided by the utility model is of great significance. Utility Model Content

[0004] The utility model provides a substrate film tearing claw mechanism, which is equipped with a film clamping resistance alarm function and a waste film detection optical fiber at the clamping claw position. Compared with traditional manual film tearing or film tearing methods using consumables, the probability of substrate damage during film tearing is reduced; the structure is compact and fully functional, small in size and simple in film tearing action, and different types of substrate film tearing equipment can be equipped with this film tearing claw mechanism; an air blowing function is configured to assist in the collection of waste film generated by film tearing; the compatibility is good, and for substrates of different widths and with notches on the frame that are commonly seen in the industry, the film tearing work can be performed by replacing some jigs, thereby solving the problems in the background technology in summary.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a substrate film-tearing clamping mechanism, comprising a primary film clamping component, a secondary film clamping component and a positioning component;

[0007] The primary film clamping assembly comprises a film tearing mechanism fixing plate, on which a plurality of adapter plates and wire tying seats are installed, and a film tearing jaw mounting plate is fixedly connected to the top of one end of the film tearing mechanism fixing plate, a pair of slot-shaped photoelectric devices are installed on the film tearing jaw mounting plate, a signal flag is installed at the bottom of each slot-shaped photoelectric device, and a spring mounting seat and a jaw cylinder mounting plate are respectively installed on the film tearing jaw mounting plate, a compression spring is fixedly connected to the spring mounting seat, a jaw cylinder, a reflective optical fiber and a guide rail slider mounting plate are respectively fixedly connected on the jaw cylinder mounting plate, a first air pipe joint is installed on the jaw cylinder and the jaw cylinder mounting plate, an upper film tearing jaw and a lower film tearing jaw are respectively fixedly connected at the ends of the output shafts of the jaw cylinder, and a first guide rail slider, a first linear guide rail and a limit block are respectively fixedly connected on the guide rail slider mounting plate;

[0008] The secondary film clamping assembly includes a secondary film clamping mounting plate, a cylinder mounting seat is fixedly connected to the secondary film clamping mounting plate, a lifting cylinder is installed on the cylinder mounting seat, a first floating joint is installed on the lifting cylinder, and a second guide rail slider and a second linear guide are fixedly connected to the end of the output shaft of the lifting cylinder, a lifting slider is fixedly connected to the second guide rail slider, a secondary film clamping cylinder is fixedly connected to the lifting slider, a second air pipe joint is installed on both the secondary film clamping cylinder and the lifting cylinder, and a long clamping jaw mounting seat and a short clamping jaw mounting seat are fixedly connected to the end of the output shaft of the secondary film clamping cylinder, and a long clamping jaw and a short clamping jaw of the secondary film are fixedly connected to the long clamping jaw mounting seat and the short clamping jaw mounting seat, respectively;

[0009] The positioning assembly includes a film tearing jaw cylinder mounting plate, one side of the film tearing jaw cylinder mounting plate is fixedly connected to a cylinder connecting block, the bottom of the cylinder connecting block is fixedly connected to a cylinder mounting plate, a film tearing cylinder is installed on the cylinder mounting plate, a third air pipe joint and a second floating joint are respectively installed on the film tearing cylinder, and the end of the output shaft of the film tearing cylinder is fixedly connected to a cylinder push block, one side of the cylinder push block is fixedly connected to a third guide rail slider, one side of the third guide rail slider is fixedly connected to a third linear guide, and the bottom of the third guide rail slider is fixedly connected to a positioning block fixing plate, and the top of the positioning block fixing plate is fixedly connected to a pair of film clamping position positioning adjustment blocks.

[0010] Furthermore, the adapter plates are divided into two rows and are linearly distributed equidistantly along the width direction of the film tearing mechanism fixing plate.

[0011] Furthermore, the upper film-tearing jaw and the lower film-tearing jaw are symmetrically distributed at the end of the output shaft of the jaw cylinder.

[0012] Furthermore, the long clamping jaw mounting seat and the short clamping jaw mounting seat are symmetrically distributed at the end of the output shaft of the secondary clamping cylinder.

[0013] Furthermore, the clamping film position positioning and adjusting blocks are symmetrically distributed at two ends of the top of the positioning block fixing plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) When in use, a substrate film tearing clamp mechanism in the utility model is equipped with a film clamping resistance alarm function and a waste film detection optical fiber at the clamping position, which reduces the probability of substrate damage during film tearing compared to traditional manual film tearing or film tearing using consumables;

[0016] (2) When in use, the substrate film-tearing clamping mechanism of the utility model has a compact structure, complete functions, small space occupation, and simple film-tearing action. Different types of substrate film-tearing equipment can be equipped with this set of film-tearing clamping mechanism;

[0017] (3) When in use, a substrate film tearing clamp mechanism in the utility model is equipped with an air blowing function to assist in collecting waste film generated by film tearing;

[0018] (4) The substrate film tearing clamp mechanism in the utility model has good compatibility when in use. For substrates of different widths and with notches on the frame commonly used in the industry, the film tearing work can be performed by replacing some fixtures.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of a substrate with a notch on the frame with a film on the back;

[0022] Figure 2 A schematic diagram of a substrate with a notch on the frame with the film torn off;

[0023] Figure 3 This is a structural schematic diagram of a substrate film-tearing clamping mechanism of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a primary film clamping assembly in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the secondary film clamping assembly in the utility model;

[0026] Figure 6 It is a structural schematic diagram of the positioning component in the utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Primary film clamping assembly; 2. Secondary film clamping assembly; 3. Positioning assembly; 4. Film tearing mechanism fixing plate; 5. Adapter plate; 6. Wire tie seat; 7. Film tearing jaw mounting plate; 8. Slot-type photoelectric; 9. Signal flag; 10. Spring mounting seat; 11. Claw cylinder mounting plate; 12. Compression spring; 13. Claw cylinder; 14. Reflective optical fiber; 15. Guide rail slider mounting plate; 16. First air pipe joint; 17. Upper film tearing jaw; 18. Lower film tearing jaw; 19. First guide rail slider; 20. First linear guide; 21. Limit block; 22. Secondary film clamping mounting plate; 23. Cylinder mounting seat; 24. Lifting cylinder; 25. First floating joint; 26. Second guide rail slider; 27. Second linear guide rail; 28. Lifting slider; 29. ​​Secondary film clamping cylinder; 30. Second air pipe joint; 31. Long clamping jaw mounting seat; 32. Short clamping jaw mounting seat; 33. Secondary film clamping long jaw; 34. Secondary film clamping short jaw; 35. Film tearing jaw cylinder mounting plate; 36. Cylinder connecting block; 37. Cylinder mounting plate; 38. Film tearing cylinder; 39. Third air pipe joint; 40. Second floating joint; 41. Cylinder push block; 42. Third guide rail slider; 43. Third linear guide rail; 44. Positioning block fixing plate; 45. Film clamping position positioning adjustment block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that terms such as "relative", "one end", "inside", "lateral", "end", "two ends", "both sides", "front", "one end face", "the other end face" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] See also Figure 1-6 As shown, a substrate film tearing clamp mechanism of the utility model comprises a primary film clamping component 1, a secondary film clamping component 2 and a positioning component 3;

[0032] The primary film clamping assembly 1 includes a film tearing mechanism fixing plate 4, on which a plurality of adapter plates 5 and wire tying seats 6 are installed, and cables and air pipes can be fixed by means of a plurality of wire tying seats 6, and a film tearing jaw mounting plate 7 is fixedly connected to the top of one end of the film tearing mechanism fixing plate 4, and a pair of slot-shaped photoelectric sensors 8 are installed on the film tearing jaw mounting plate 7, one of which slot-shaped photoelectric sensors 8 can detect a signal that the primary film clamping position is in place, and the other slot-shaped photoelectric sensor 8 can detect a resistance alarm signal that occurs during the film clamping positioning process, and a signal flag 9 is installed at the bottom of each slot-shaped photoelectric sensor 8, one of which signal flag 9 can provide a signal that the primary film clamping position is in place, and the other signal flag 9 can provide a resistance alarm signal when an abnormality occurs in the primary film clamping positioning, and a spring mounting seat 10 and a clamping jaw cylinder mounting plate 11 are respectively installed on the film tearing jaw mounting plate 7, and a compression spring 12 is fixedly connected to the spring mounting seat 10, and the compression spring 12 can provide elastic force for the X-direction movement of the film tearing jaw, and will trigger the resistance alarm sensor when it is subjected to a certain amount of compression. In order to prevent the substrate from being damaged when clamping the film, the clamping cylinder mounting plate 11 is respectively fixedly connected with a clamping cylinder 13, a reflective optical fiber 14 and a guide rail slider mounting plate 15. The reflective optical fiber 14 can detect whether there is waste film at the film tearing clamping position. The clamping cylinder 13 and the clamping cylinder mounting plate 11 are both installed with a first air pipe joint 16, and an air pipe can be connected through the first air pipe joint 16 to provide a blowing function for the entire film tearing clamping assembly, thereby assisting in the collection of waste film generated by film tearing. The output of the clamping cylinder 13 The ends of the shafts are respectively fixedly connected with an upper film tearing jaw 17 and a lower film tearing jaw 18, and the guide rail slider mounting plate 15 is respectively fixedly connected with a first guide rail slider 19, a first linear guide rail 20 and a limit block 21. The guide rail slider mounting plate 15 can be installed and fixed by the first guide rail slider 19 so that it can make elastic movement along the first linear guide rail 20. The elastic movement of the film tearing jaw in the X direction can be guided by the first linear guide rail 20, and the elastic movement of the film tearing assembly in the X direction can be limited by the limit block 21.

[0033] The secondary film clamping assembly 2 includes a secondary film clamping mounting plate 22, a cylinder mounting seat 23 is fixedly connected to the secondary film clamping mounting plate 22, a lifting cylinder 24 is installed on the cylinder mounting seat 23, and the secondary film clamping jaw can be driven to perform lifting movement through the lifting cylinder 24. A first floating joint 25 is installed on the lifting cylinder 24, and the service life of the lifting cylinder 24 can be extended through the first floating joint 25. The end of the output shaft of the lifting cylinder 24 is fixedly connected to a second guide slider 26 and a second linear guide 27, and the lifting movement of the secondary film clamping jaw can be guided by the second linear guide 27. The second guide slider 26 is fixedly connected to A lifting slider 28 can be installed and fixed through the second guide slider 26 so that it can move up and down along the second linear guide rail 27. A secondary film clamping cylinder 29 is fixedly connected to the lifting slider 28. The secondary film clamping claw can be driven by the secondary film clamping cylinder 29 to open and close. A second air pipe joint 30 is installed on both the secondary film clamping cylinder 29 and the lifting cylinder 24. A long clamping claw mounting seat 31 and a short clamping claw mounting seat 32 are fixedly connected to the output shaft end of the secondary film clamping cylinder 29. A secondary film long clamping claw 33 and a secondary film short clamping claw 34 are fixedly connected to the long clamping claw mounting seat 31 and the short clamping claw mounting seat 32 respectively.

[0034] The positioning assembly 3 includes a film-tearing jaw cylinder mounting plate 35, one side of the film-tearing jaw cylinder mounting plate 35 is fixedly connected to a cylinder connecting block 36, the bottom of the cylinder connecting block 36 is fixedly connected to a cylinder mounting plate 37, a film-tearing cylinder 38 is mounted on the cylinder mounting plate 37, a third air pipe joint 39 and a second floating joint 40 are respectively mounted on the film-tearing cylinder 38, and the service life of the film-tearing cylinder 38 can be extended by the second floating joint 40, the end of the output shaft of the film-tearing cylinder 38 is fixedly connected to a cylinder push block 41, one side of the cylinder push block 41 is fixedly connected to a third guide rail slider 42, and the third guide rail slider 4 2 is fixedly connected to one side of the third linear guide rail 43, and a positioning block fixing plate 44 is fixedly connected to the bottom of the third guide rail slider 42. The positioning block fixing plate 44 can be installed and fixed through the third guide rail slider 42 to make it perform translational movement along the third linear guide rail 43. A pair of film clamping position positioning adjustment blocks 45 are fixedly connected to the top of the positioning block fixing plate 44. The film clamping position positioning adjustment blocks 45 can be driven to perform translational movement by the film tearing cylinder 38, pushed out when positioning the film clamping, and retracted when the film is to be torn after the film clamping is completed. The translational movement of the film clamping position positioning adjustment blocks 45 can be guided by the third linear guide rail 43.

[0035] The adapter plates 5 are divided into two rows and are linearly distributed equidistantly along the width direction of the film tearing mechanism fixing plate 4 . The plurality of adapter plates 5 can be used to transfer the cables of the film tearing jaw assembly.

[0036] The upper film-tearing jaw 17 and the lower film-tearing jaw 18 are symmetrically distributed at the end of the output shaft of the jaw cylinder 13 , and the upper film-tearing jaw 17 and the lower film-tearing jaw 18 can cooperate with each other to close and clamp the film.

[0037] Among them, the long clamping jaw mounting seat 31 and the short clamping jaw mounting seat 32 are symmetrically distributed at the end of the output shaft of the secondary film clamping cylinder 29. The secondary film clamping long clamping jaw 33 and the secondary film clamping short clamping jaw 34 can be respectively connected and fixed to the driving shaft of the secondary film clamping cylinder 29 through the long clamping jaw mounting seat 31 and the short clamping jaw 32. The secondary film clamping long clamping jaw 33 and the secondary film clamping short clamping jaw 34 can cooperate with each other so that after the primary film clamping assembly 1 tears off a part of the film, the film is clamped for the second time, and the two groups of jaws perform subsequent film tearing actions together, thereby reducing the probability of the film detaching from the clamping jaws during the subsequent film tearing movement.

[0038] The film clamping position positioning adjustment blocks 45 are symmetrically distributed at the top two ends of the positioning block fixing plate 44. The film clamping position positioning adjustment blocks 45 can support the side of the substrate during the first film clamping to position the film, thereby adjusting the film clamping position.

[0039] The circuits, electronic components and chip modules involved in the utility model are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0040] The standard parts used in the application documents can all be purchased from the market. All the components in this application document can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art. The electrical components appearing in this article are all electrically connected to the external main controller and 220V AC power, and the main controller can be a conventional known device that controls the LED lamp body, etc.

[0041] The working principle of the utility model is:

[0042] When the utility model is in use, first, the film tearing platform carrying the substrate is placed close to the positioning component 3 to perform a positioning action before the film is clamped. After the film clamping positioning is completed, the pneumatic upper film tearing jaw 17 and the lower film tearing jaw 18 of the primary film clamping component 1 are closed to clamp the film at the notch of the substrate, and then a film tearing action is performed. After the primary film tearing action is completed, the pneumatic secondary film clamping long jaw 33 and the secondary film clamping short jaw 34 of the secondary film clamping component 2 are lowered and closed to clamp the middle position of the torn film, and then a secondary film tearing action is performed together with the primary film tearing jaw. After the secondary film tearing is completed, the two sets of air claws are opened, and the blowing function equipped with the primary film clamping component 1 is turned on to blow the waste film torn off the claws into the collection channel, thereby completing the entire film tearing action for a piece of substrate.

[0043] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A substrate film tearing clamp mechanism, characterized in that: It includes a primary film clamping assembly, a secondary film clamping assembly and a positioning assembly; The primary film clamping assembly comprises a film tearing mechanism fixing plate, on which a plurality of adapter plates and wire tying seats are installed, and a film tearing jaw mounting plate is fixedly connected to the top of one end of the film tearing mechanism fixing plate, a pair of slot-shaped photoelectric devices are installed on the film tearing jaw mounting plate, a signal flag is installed at the bottom of each slot-shaped photoelectric device, and a spring mounting seat and a jaw cylinder mounting plate are respectively installed on the film tearing jaw mounting plate, a compression spring is fixedly connected to the spring mounting seat, a jaw cylinder, a reflective optical fiber and a guide rail slider mounting plate are respectively fixedly connected on the jaw cylinder mounting plate, a first air pipe joint is installed on the jaw cylinder and the jaw cylinder mounting plate, an upper film tearing jaw and a lower film tearing jaw are respectively fixedly connected at the ends of the output shafts of the jaw cylinder, and a first guide rail slider, a first linear guide rail and a limit block are respectively fixedly connected on the guide rail slider mounting plate; The secondary film clamping assembly includes a secondary film clamping mounting plate, a cylinder mounting seat is fixedly connected to the secondary film clamping mounting plate, a lifting cylinder is installed on the cylinder mounting seat, a first floating joint is installed on the lifting cylinder, and a second guide rail slider and a second linear guide are fixedly connected to the end of the output shaft of the lifting cylinder, a lifting slider is fixedly connected to the second guide rail slider, a secondary film clamping cylinder is fixedly connected to the lifting slider, a second air pipe joint is installed on both the secondary film clamping cylinder and the lifting cylinder, and a long clamping jaw mounting seat and a short clamping jaw mounting seat are fixedly connected to the end of the output shaft of the secondary film clamping cylinder, and a long clamping jaw and a short clamping jaw of the secondary film are fixedly connected to the long clamping jaw mounting seat and the short clamping jaw mounting seat, respectively; The positioning assembly includes a film tearing jaw cylinder mounting plate, one side of the film tearing jaw cylinder mounting plate is fixedly connected to a cylinder connecting block, the bottom of the cylinder connecting block is fixedly connected to a cylinder mounting plate, a film tearing cylinder is installed on the cylinder mounting plate, a third air pipe joint and a second floating joint are respectively installed on the film tearing cylinder, and the end of the output shaft of the film tearing cylinder is fixedly connected to a cylinder push block, one side of the cylinder push block is fixedly connected to a third guide rail slider, one side of the third guide rail slider is fixedly connected to a third linear guide, and the bottom of the third guide rail slider is fixedly connected to a positioning block fixing plate, and the top of the positioning block fixing plate is fixedly connected to a pair of film clamping position positioning adjustment blocks.

2. A substrate film tearing clamp mechanism according to claim 1, characterized in that: The adapter plates are divided into two rows and are linearly distributed at equal distances along the width direction of the film tearing mechanism fixing plate.

3. A substrate film tearing clamp mechanism according to claim 1, characterized in that: The upper film-tearing clamping jaw and the lower film-tearing clamping jaw are symmetrically distributed at the end of the output shaft of the clamping jaw cylinder.

4. A substrate film tearing clamp mechanism according to claim 1, characterized in that: The long clamping jaw mounting seat and the short clamping jaw mounting seat are symmetrically distributed at the end of the output shaft of the secondary clamping film cylinder.

5. A substrate film tearing clamp mechanism according to claim 1, characterized in that: The film clamping position positioning and adjusting blocks are symmetrically distributed at the two ends of the top of the positioning block fixing plate.

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