Adjustable clamping plate frame

Abstract

The utility model relates to the field of automatic production of circuit boards, in particular to an adjustable clamping plate frame. According to the clamping plate frame, locking between the movable frame strips and the side frame strips is achieved through the upper helical racks and the lower helical racks which are matched with each other, even if a carried circuit board is heavy, the upper helical racks and the lower helical racks are not prone to dislocating, and the larger the borne gravity is, the firmer the combination of the upper helical racks and the lower helical racks is; and the clamping plate frame is automatically locked through the first elastic piece, automatic unlocking is achieved by arranging a simple unlocking inclined face, unlocking can be achieved only by abutting against the unlocking inclined face, automatic locking can be achieved by canceling abutting against the unlocking inclined face, and automatic production is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automatic production of circuit board, especially a kind of adjustable clamping plate frame. BACKGROUND

[0002] In the automatic production of PCB, clamping plate frame is a common tool, which is used to clamp and fix PCB, to facilitate the automatic transfer and automatic production of PCB. In order to adapt to the clamping of PCB of different sizes, the clamping plate frame is usually provided with an adjustable structure to adjust the size of the clamping area of the clamping plate frame to adapt to PCB of different sizes. However, the size adjusting structure of the existing clamping plate frame can only be used for manual adjustment, which is not conducive to the use of automatic production. When the weight of the PCB is large, the adjustable structure of the clamping plate frame that clamps the PCB will loosen and slide down during the production and transfer process of the PCB, which will affect the subsequent automatic production. SUMMARY

[0003] In order to overcome the above problems, the utility model provides an adjustable clamping plate frame, and the utility model solves the technical problems thereof by adopting the technical scheme of:

[0004] An adjustable clamping plate frame, comprising two mutually parallel side frame strips, the side frame strips comprising clamping sections and adjusting sections arranged in an up-down position, the upper end of the clamping section being connected by a fixed frame strip, the lower end of the adjusting section being connected by a limiting frame strip, to form a closed clamping plate frame structure; a sliding frame strip is arranged between the adjusting sections, and clamping plate assemblies are arranged on the clamping sections, the fixed frame strip and the sliding frame strip; wherein, first sliding grooves are arranged on the inner sides of the adjusting sections, and the side edges of the first sliding grooves are provided with upwardly inclined upper inclined racks with tooth tips; first sliding feet and locking members are arranged at both ends of the sliding frame strip, the locking members slide towards / away from the first sliding grooves along the first sliding feet, the sliding frame strip slides up and down along the first sliding grooves through the first sliding feet, and the locking members are provided with downwardly inclined lower inclined racks with tooth tips; the locking members are provided with first elastic members and unlocking slopes, the first elastic members drive the lower inclined racks to approach and lock the upper inclined racks, and the unlocking slopes drive the lower inclined racks to move away and unlock the upper inclined racks under stress.

[0005] Further, the angle of the upwardly inclined tooth tips of the upper inclined rack and the angle of the downwardly inclined tooth tips of the lower inclined rack are the same, to ensure the accurate engagement of the lower inclined rack and the upper inclined rack.

[0006] Further, the locking member is sleeved on the first sliding foot, to ensure the stable sliding of the locking member along the first sliding foot; the upper inclined racks are symmetrically arranged on both sides of the first sliding groove, and the lower inclined racks are correspondingly and symmetrically arranged on the locking member, to ensure the stable engagement of the lower inclined rack and the upper inclined rack.

[0007] Further, the first sliding foot top end is provided with a roller, and the roller rolls along the first sliding groove.

[0008] Further, a separation frame strip parallel to the side frame strip is arranged between the fixed frame strip and the limiting frame strip to separate the sub-clamping plate area.

[0009] Further, the separation frame strip is provided with a clamping plate assembly.

[0010] Further, the separation frame strip is provided with a second sliding groove parallel to the first sliding groove, and the sliding frame strip is provided with a second sliding foot, which slides up and down along the second sliding groove.

[0011] Further, the second sliding foot top end is provided with a roller, and the roller rolls along the second sliding groove.

[0012] Further, the separation frame strip is further provided with a stabilizing groove parallel to the second sliding groove, and the stabilizing groove is symmetrically arranged on both sides of the second sliding groove, and the sliding frame strip is fixedly connected with a stabilizing strip, which slides along the stabilizing groove to ensure stable sliding of the sliding frame strip.

[0013] Further, the clamping section, the fixed frame strip, the sliding frame strip and the separation frame strip are all provided with a bottom plate strip located in the same plane, and the clamping plate assembly is clamped on the bottom plate strip to ensure that the plates in the sub-clamping plate area are located in the same plane.

[0014] The utility model discloses the beneficial effect has:

[0015] The clamping frame uses the upper and lower inclined racks matched to realize the locking between the moving frame strip and the side frame strip, even if the circuit board carried is heavy, the upper and lower inclined racks will not be easily dislocated, and the greater the gravity, the more firm the combination, and the clamping frame uses the first elastic member to realize automatic locking, and realizes automatic unlocking through the simple unlocking slope, and the unlocking slope is cancelled to realize automatic locking, which is convenient for automatic production. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings and specific embodiments, wherein:

[0017] Figure 1 It is the perspective view and partial enlarged view of the clamping frame;

[0018] Figure 2 It is the explosion view and partial enlarged view of the clamping frame;

[0019] Figure 3 It is the explosion view and partial enlarged view of the sliding frame strip end and the side frame strip connection position;

[0020] Figure 4 It is the perspective view of the locking member.

[0021] Figure number mark:

[0022] 100, side frame strip; 101, clamping section; 102, adjusting section; 103, first sliding groove; 104, upper inclined rack;

[0023] 200, fixed frame strip;

[0024] 300, limiting frame strip;

[0025] 400, sliding frame strip; 401, first sliding foot; 402, locking part; 403, lower inclined rack; 404, first elastic part; 405, unlocking inclined surface; 406, second sliding foot; 407, stabilizing strip;

[0026] 500, clamping plate assembly; 501, bottom plate strip;

[0027] 600, partition frame strip; 601, sub-clamping plate area; 602, second sliding groove; 603, stabilizing groove. DETAILED DESCRIPTION

[0028] In order to better understand the purpose, structure and function of the utility model, the specific embodiments of the utility model "adjustable clamping plate frame" are described in further detail below in conjunction with the drawings.

[0029] Reference Figures 1-4In the embodiment, the adjustable clamping frame includes two mutually parallel side frame strips 100, the side frame strips 100 include clamping sections 101 and adjusting sections 102 arranged in an up-down position, the upper end of the clamping section 101 is fixedly connected through a fixed frame strip 200, the lower end of the adjusting section 102 is fixedly connected through a limiting frame strip 300, thereby forming a closed clamping frame structure. The inner side of the adjusting section 102 is provided with a vertical first sliding groove 103, the side of the first sliding groove 103 is provided with an upper inclined rack 104 with a tooth tip inclined upward. The adjusting sections 102 are provided with a sliding frame strip 400 parallel to the fixed frame strip 200, the sliding frame strip 400 is provided with a first sliding foot 401 and a locking member 402 at both ends, the sliding frame strip 400 slides up and down along the first sliding groove 103 through the first sliding foot 401, so as to be close to or away from the fixed frame strip 200, thereby adjusting the size of the clamping PCB area of the clamping frame, facilitating clamping of PCBs of different sizes in automatic production. The locking member 402 is provided with a lower inclined rack 403 with a tooth tip inclined downward, the locking member 402 slides close to / away from the first sliding groove 103 along the first sliding foot 401, thereby making the lower inclined rack 403 close to and lock / away from and unlock the upper inclined rack 104; the locking member 402 is provided with a first elastic member 404 and an unlocking inclined surface 405, the first elastic member 404 is preferably a spring, the first elastic member 404 has a tendency to drive the lower inclined rack 403 to slide close to and lock the upper inclined rack 104, the unlocking inclined surface 405 can drive the lower inclined rack 403 to be away from and unlock the upper inclined rack 104 after being forced; the clamping section 101, the fixed frame strip 200 and the sliding frame strip 400 are all provided with a clamping plate assembly 500 for clamping and fixing the four edges of the PCB, thereby realizing stable clamping of the PCB.

[0030] In the automatic production process, the size information of the circuit board to be clamped is obtained through a scanning device, then a mechanical hand or other automatic instrument device abuts against the unlocking inclined surface 405, the unlocking inclined surface 405 is forced to overcome the elastic force of the first elastic member 404 and drive the locking member 402 to slide inward, so that the lower inclined rack 403 is disengaged from the upper inclined rack 104, the locking between the sliding frame strip 400 and the side frame strip 100 is released, then the mechanical hand or other automatic instrument device can drive the sliding frame strip 400 to slide upward or downward along the first sliding groove 103, until the position of accurately clamping the circuit board is reached, then the mechanical hand or other automatic instrument device abuts against the unlocking inclined surface 405, at this time the first elastic member 404 drives the locking member 402 to slide toward the first sliding groove 103, the lower inclined rack 403 is engaged with the upper inclined rack 104, the sliding frame strip 400 and the side frame strip 100 are locked, then the mechanical hand or other automatic instrument device opens the clamping plate assembly 500, and the mechanical hand automatically clamps the board.

[0031] More specifically, in the embodiment, the angle of the tooth tip of the upper inclined rack 104 is inclined upward and the angle of the tooth tip of the lower inclined rack 403 is inclined downward, so as to ensure that the lower inclined rack 403 and the upper inclined rack 104 are accurately engaged and prevent loosening; the locking member 402 is sleeved on the first sliding foot 401, so as to ensure that the locking member 402 stably slides along the first sliding foot 401; the upper inclined rack 104 is symmetrically arranged on both sides of the first sliding groove 103, and the lower inclined rack 403 is symmetrically arranged on the locking member 402, so as to ensure that the lower inclined rack 403 and the upper inclined rack 104 are stably engaged, and the locking is more firm and stable.

[0032] In some embodiments, the top end of the first sliding foot 401 is provided with a roller, and the roller rolls along the first sliding groove 103, so as to reduce the resistance when the sliding frame strip 400 slides along the first sliding groove 103, and make the adjustment of the position of the sliding frame strip 400 more smooth.

[0033] Further referring to Figure 1 and Figure 2 In the embodiment, the separation frame strip 600 is vertically arranged between the fixed frame strip 200 and the limiting frame strip 300 and is parallel to the side frame strip 100, so as to separate the sub-clamping plate area 601, so that one clamping frame can clamp two or more PCBs; and in order to ensure the stability of the clamping of the sub-clamping plate area 601, the clamping assembly 500 is also arranged on the separation frame strip 600.

[0034] Further referring to Figure 2 In the embodiment, the second sliding groove 602 parallel to the first sliding groove 103 is arranged on the separation frame strip 600, and the second sliding foot 406 is arranged on the sliding frame strip 400, and the second sliding foot 406 slides up and down along the second sliding groove 602, so as to increase the stability of the sliding frame strip 400 when sliding up and down in the case of multiple sub-clamping plate areas 601. In some embodiments, the top end of the second sliding foot 406 is provided with a roller, and the roller rolls along the second sliding groove 602, so as to further reduce the frictional resistance of the sliding frame strip 400 when sliding up and down.

[0035] More specifically, in the embodiment, the separation frame strip 600 is further provided with the stabilizing groove 603 parallel to the second sliding groove 602, and the stabilizing groove 603 is symmetrically arranged on both sides of the second sliding groove 602, and the stabilizing strip 407 is fixedly connected to the sliding frame strip 400, and the stabilizing strip 407 slides along the stabilizing groove 603, so as to ensure the stability of the sliding frame strip 400 when sliding up and down and prevent shaking.

[0036] Further referring to Figure 1In the embodiment, the clamping section 101, the fixed frame strip 200, the sliding frame strip 400 and the partition frame strip 600 are all provided with the bottom plate strip 501 in the same plane, and the clamping plate assembly 500 clamps and fixes the PCB on the bottom plate strip 501, so that the circuit boards clamped in the sub-clamping plate area 601 are all clamped in the same plane, and the circuit boards are prevented from being bent on the clamping plate frame.

[0037] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

[0038] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

Claims

1. An adjustable clamping frame, characterized in that, The structure includes two parallel side frame strips (100), each side frame strip (100) comprising a clamping section (101) and an adjusting section (102) positioned vertically. The upper ends of the clamping sections (101) are connected by a fixed frame strip (200), and the lower ends of the adjusting sections (102) are connected by a limiting frame strip (300), forming a closed clamping frame structure. A sliding frame strip (400) is provided between the adjusting sections (102), and clamping plate assemblies (500) are provided on the clamping sections (101), the fixed frame strip (200), and the sliding frame strip (400). The inner side of the adjustment section (102) is provided with a first slide groove (103), and the side of the first slide groove (103) is provided with an upwardly inclined toothed rack (104) with the tooth tip tilted upward. The sliding frame (400) is provided with a first sliding foot (401) and a locking member (402) at both ends. The locking member (402) slides along the first sliding foot (401) to approach / move away from the first slide groove (103). The sliding frame (400) slides up and down along the first slide groove (103) through the first sliding foot (401). The locking member (402) is provided with a downward inclined toothed rack (403) with the tooth tip tilted downward. The locking member (402) is provided with a first elastic member (404) and an unlocking ramp (405). The first elastic member (404) drives the lower inclined rack (403) to approach and lock the upper inclined rack (104). The unlocking ramp (405) is driven by force to move the lower inclined rack (403) away from and unlock the upper inclined rack (104).

2. The adjustable clamping frame according to claim 1, characterized in that, The upward tilt angle of the upper inclined rack (104) and the downward tilt angle of the lower inclined rack (403) are the same to ensure that the lower inclined rack (403) and the upper inclined rack (104) mesh accurately.

3. An adjustable clamping frame according to claim 2, characterized in that, The locking member (402) is sleeved on the first sliding foot (401) to ensure that the locking member (402) slides stably along the first sliding foot (401); the upper inclined rack (104) is symmetrically arranged on both sides of the first sliding groove (103), and the lower inclined rack (403) is symmetrically arranged on the locking member (402) to ensure that the lower inclined rack (403) and the upper inclined rack (104) are stably engaged.

4. An adjustable clamping frame according to claim 1, characterized in that, The top of the first sliding foot (401) is provided with a roller, which rolls along the first sliding groove (103).

5. An adjustable clamping frame according to any one of claims 1-4, characterized in that, A partition strip (600) parallel to the side strip (100) is provided between the fixed frame strip (200) and the limiting frame strip (300) to separate the sub-clamp area (601).

6. An adjustable clamping frame according to claim 5, characterized in that, The clamping plate assembly (500) is provided on the dividing frame (600).

7. An adjustable clamping frame according to claim 6, characterized in that, The dividing frame (600) is provided with a second slide groove (602) parallel to the first slide groove (103), and the sliding frame (400) is provided with a second sliding foot (406), which slides up and down along the second slide groove (602).

8. An adjustable clamping frame according to claim 7, characterized in that, The second sliding foot (406) is provided with a roller at its top end, and the roller rolls along the second sliding groove (602).

9. An adjustable clamping frame according to claim 7, characterized in that, The dividing frame (600) is also provided with a stabilizing groove (603) parallel to the second sliding groove (602). The stabilizing groove (603) is symmetrically arranged on both sides of the second sliding groove (602). A stabilizing strip (407) is fixedly connected to the sliding frame (400). The stabilizing strip (407) slides along the stabilizing groove (603) to ensure that the sliding frame (400) slides stably.

10. An adjustable clamping frame according to claim 7, characterized in that, The clamping section (101), the fixed frame strip (200), the sliding frame strip (400) and the dividing frame strip (600) are all provided with a base plate strip (501) located on the same plane. The clamping plate assembly (500) clamps on the base plate strip (501) to ensure that the plates of the sub-clamping plate area (601) are located on the same plane.

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