CN113664577A - Clamp apparatus - Google Patents

Abstract

The invention relates to a clamp for processing a blank with a clamping boss to form a product, which comprises: the bearing piece is used for bearing at least two blank parts, and the two adjacent blank parts are marked as a first blank part and a second blank part; the first middle driver comprises a first middle clamping block which can move in a gap between the first blank piece and the second blank piece, and the first middle clamping block can simultaneously press bosses on the first blank piece and the second blank piece against the bearing piece; and the edge driver comprises an edge clamping block positioned outside the interval gap, and the edge clamping block can press the boss on the first blank piece or the second blank piece against the bearing piece. Therefore, the change frequency of the cutter feeding direction is reduced, and the product processing and forming efficiency is finally improved. Meanwhile, the first middle clamping block can clamp the two blank parts at the same time, so that the arrangement of redundant parts can be omitted, and the structure of the clamp is simplified.

Description

Clamp apparatus

Technical Field

The invention relates to the technical field of mechanical tools, in particular to a clamp.

Background

For products such as the middle frame and the rear shell of the smart phone, a numerical control machine (Computer numerical control CNC) is generally required to perform numerical control machining (CNC machining) on the blank to form the product. In the processing process, a clamp is generally adopted to stably and reliably clamp the blank, and then the blank is processed by a cutter. However, with the conventional clamp, the feed direction of the tool is usually changed with high frequency, thereby affecting the forming efficiency of the product.

Disclosure of Invention

The invention solves the technical problem of how to improve the processing and forming efficiency of products.

A jig for forming a product from a blank with a gripping boss, the jig comprising:

the bearing piece is used for bearing at least two blank parts, and the two adjacent blank parts are marked as a first blank part and a second blank part;

the first intermediate driver comprises a first intermediate clamping block which can move in a spacing gap between the first blank piece and the second blank piece, and the first intermediate clamping block can simultaneously press the bosses on the first blank piece and the second blank piece against the bearing piece; and

the edge driver comprises an edge clamping block positioned outside the interval gap, and the edge clamping block can press the boss on the first blank piece or the second blank piece against the bearing piece.

In one of them embodiment, first middle driver still includes interconnect's vertical axle and vertical axis, the vertical axle wear to establish in the carrier and can rotate around the axis that self extends along the direction of gravity, the axis of vertical axis is perpendicular the axis of vertical axis and extends along the length direction of embryo material spare, first middle clamp splice can rotate around the axis of vertical axis is relative vertical axis, first middle clamp splice with the vertical axis is followed the axis of vertical axis extends the interval and is formed with the clearance.

In one embodiment, the first intermediate driver further includes a fixing member, the vertical shaft includes an insertion portion inserted into the first intermediate clamping block, the longitudinal shaft is inserted into the insertion portion, the first intermediate clamping block is provided with a receiving hole and a fixing hole which are communicated with each other, two ends of the longitudinal shaft are respectively provided with the receiving hole correspondingly, the fixing member is fixed in the fixing hole, and an end of the fixing member is received in the receiving hole and abuts against an end of the longitudinal shaft.

In one of them embodiment, first middle driver still includes vertical axle, cross axle and revolving cylinder, vertical axle wear to establish in the carrier and with it is connected to first middle clamp splice, the perpendicular gravity direction of the axis of cross axle is followed the width direction of embryo material spare extends, revolving cylinder includes the axis of rotation that can extend around the gravity direction, the cross axle sets up on the rotation axis, vertical axle can wind the axis of cross axle is relative the rotation axis produces the rotation, vertical axle with between the rotation axis along the axis interval of rotation axis is formed with and keeps away the position interval.

In one embodiment, the bearing member is provided with an adsorption hole capable of generating vacuum and adsorbing the blank, and the caliber of the adsorption hole is less than or equal to 2 mm.

In one embodiment, the sealing device further comprises a sealing element, a sealing groove is formed in the bearing element in a recessed mode and arranged around the adsorption hole, the sealing element is matched with the sealing groove, the sealing groove comprises a first sealing section, a second sealing section and a third sealing section which are sequentially arranged along the recessed direction, and the width of the second sealing section is larger than the width of the first sealing section and the width of the third sealing section.

In one embodiment, the first middle clamping block comprises a main body part and an abutting part which are connected with each other, two abutting parts are respectively arranged at two ends of the main body part, and the two abutting parts located at the same end of the main body part respectively abut against the two bosses on the same blank.

In one embodiment, the apparatus further comprises a plurality of second intermediate drivers, each of the second intermediate drivers comprises a second intermediate clamping block capable of moving in the gap, the second intermediate clamping block is capable of pressing the boss on the first blank or the second blank against the carrier, and the plurality of second intermediate clamping blocks are separated from two opposite sides of the first intermediate clamping block.

In one embodiment, the edge driver further comprises an edge cylinder and a rotating part, one end of the edge clamping block is connected with a piston rod of the edge cylinder, one end of the rotating part is rotatably connected with a cylinder barrel of the edge cylinder, the other end of the rotating part is rotatably connected with the middle part of the edge clamping block, and the other end of the edge clamping block is provided with a pressing part abutted against the boss; or the other end of the edge clamping block is provided with two pressing parts which are respectively abutted with different bosses.

In one embodiment, at least one of the following schemes is further included:

the waste material driver comprises a rotary telescopic cylinder, a first rod body and a second rod body, wherein the first rod body is connected with the rotary telescopic shaft of the rotary telescopic cylinder, the other end of the first rod body is connected with the middle of the second rod body, and two ends of the second rod body respectively press against the middle part of the same blank;

the blank material part comprises a blank material part and is characterized by further comprising a positioning column, wherein one end of the positioning column is fixed on the bearing part, and the other end of the positioning column penetrates through the blank material part;

the blank piece is characterized by further comprising a guide post, wherein the guide post is fixed on the bearing piece and is in contact with the edge of the blank piece.

One technical effect of one embodiment of the invention is that: in view of the fact that the bearing part is provided with at least two blank parts, after the first blank part is machined, the cutter can be prevented from moving reversely to the initial position, the cutter can continue to move to the second blank part along the same direction, the second blank part can be machined, namely, the cutter can machine the at least two blank parts by the feed in the same direction, the change frequency of the cutter feed direction is reduced, and the machining and forming efficiency of the product is improved finally. Meanwhile, the first middle clamping block can clamp the two blank parts at the same time, so that the arrangement of redundant parts can be omitted, and the structure of the clamp is simplified.

Drawings

FIG. 1 is a schematic perspective view of a blank;

FIG. 2 is a schematic perspective view of a blank processed to form scrap and product;

FIG. 3 is a schematic perspective view of a clamp according to an embodiment;

FIG. 4 is an enlarged view of the fixture shown in FIG. 3 at A;

FIG. 5 is an enlarged view of the fixture of FIG. 3 at B;

FIG. 6 is a schematic top view of the fixture of FIG. 3;

FIG. 7 is a perspective view of the bearing member of the fixture of FIG. 3;

FIG. 8 is a schematic partial cross-sectional view of the carrier shown in FIG. 7;

FIG. 9 is a perspective view of a first intermediate actuator of the clamp of FIG. 3;

FIG. 10 is a schematic cross-sectional perspective view of the first intermediate drive of FIG. 9;

figure 11 is a schematic plan cross-sectional structural view of the first intermediate drive of figure 9;

FIG. 12 is a schematic perspective view of an edge driver of the fixture of FIG. 3;

FIG. 13 is a perspective view of another example edge clamp block of the edge drive of FIG. 12;

figure 14 is a perspective view of the waste driver of the clamp of figure 3.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1, 2 and 3, a clamp 10 according to an embodiment of the present invention is used for clamping a blank 20. the blank 20 may include a middle portion 23 and two edge portions 24, the middle portion 23 is connected between the two edge portions 24, and the two edge portions 24 are symmetrically disposed with respect to the middle portion 23. When the entire blank 20 is finished, the intermediate portion 23 is cut off from the edge portions 24, i.e. the intermediate portion 23 will form a discarded scrap 23a, while the two edge portions 24 form respective finished products 24 a. In order to facilitate clamping the blank 20, the two edge portions 24 each have a boss 25, the bosses 25 protrude a certain length from the side circumferential surfaces of the edge portions, for example, one edge portion is provided with six bosses 25, the side circumferential surfaces have two first unit surfaces and one second unit surface, the two first unit surfaces are oppositely disposed and extend along the length direction of the blank 20, the second unit surface is disposed away from the middle portion 23 and extends along the width direction of the blank 20, two bosses 25 are spaced on each first unit surface, and two bosses 25 are also spaced on the second unit surface.

The jig 10 includes a carrier 100, a base plate 210, a connection post 220, a seal 230, a positioning post 240, a guide post 250, a first intermediate drive 300, a second intermediate drive 400, an edge drive 500, and a scrap drive 600.

In some embodiments, the carrier 100 may have a substantially plate-like structure, the bottom plate 210 and the carrier 100 are spaced apart in a vertical direction (gravity direction), and the connection column 220 is connected between the carrier 100 and the bottom plate 210, that is, the lower end of the connection column 220 is fixed on the bottom plate 210, and the upper end of the connection column 220 is fixed on the carrier 100. At least two blank pieces 20 are carried on the carrying component 100, the two adjacent blank pieces 20 are marked as a first blank piece 21 and a second blank piece 22, the first blank piece 21 and the second blank piece 22 are arranged on the carrying component 100 at intervals along the width direction of the first blank piece 21 and the second blank piece 22, and a gap between the two adjacent first blank pieces 21 and the second blank pieces 22 is marked as a gap 26. The carrier 100 has an upper surface and a lower surface which are spaced apart in a thickness direction of the carrier 100, and the blank 20 is carried on a side where the upper surface is located.

The carrier 100 is provided with an absorption hole 110, a vacuum generator can make the absorption hole 110 form a vacuum, and when the blank 20 is prevented from covering the absorption hole 110 on the carrier 100, the blank 20 is absorbed on the carrier 100 under the action of the air pressure difference. Since the thickness of the product 24a formed on the blank 20 is about 0.273mm, the vacuum suction holes 110 are provided to improve the stability and reliability of the whole clamp 10 for clamping the blank 20, prevent the blank 20 from vibrating during processing, prevent the tool lines from being formed on the formed product 24a, and improve the forming quality of the product 24 a. The diameter of the suction hole 110 is 2mm or less, considering that the minimum diameter of the machining tool is 2mm, and the thickness of the product 24a is about 0.273mm, i.e. the product 24a has a small thickness and a small bending strength. If the diameter of the suction hole 110 is greater than 2mm, that is, the diameter of the suction hole 110 is greater than the diameter of the tool, when the tool moves to a position corresponding to the suction hole 110 during the machining process using the tool with the diameter of 2mm, the blank 20 will form a "step-on-empty phenomenon" under the pressure of the tool to bend, so that a gravure is formed on the machined product 24 a. In the embodiment, the aperture of the absorption hole 110 is smaller than or equal to 2mm, which can ensure that the aperture of the absorption hole 110 is smaller than or equal to the diameter of the cutter, thereby effectively preventing the absorption hole 110 from weakening the bending strength of the blank 20, further avoiding the blank 20 from generating a "step-on phenomenon", preventing the product 24a formed by processing from forming a gravure, and finally improving the forming quality of the product 24 a.

The sealing groove 120 is concavely formed on the carrier 100, the sealing groove 120 may be a closed ring structure and is disposed around the suction hole 110, the sealing element 230 is matched with the sealing groove 120, when the blank 20 is carried on the carrier 100, the blank 20 contacts with the sealing element 230, so as to improve the air tightness of the suction hole 110 and the vacuum degree during vacuum pumping, and improve the stable reliability of the clamping of the fixture 10 to the blank 20. The sealing groove 120 includes a first sealing segment 121, a second sealing segment 122 and a third sealing segment 123, and the first sealing segment 121, the second sealing segment 122 and the third sealing segment 123 are sequentially arranged along the recess direction, that is, the second sealing segment 122 is located between the first sealing segment 121 and the third sealing segment 123. In a popular way, the first sealing section 121 is an upper section, the second sealing section 122 is a middle section, the first sealing section 121 is a lower section, and the width of the first sealing section 121 is greater than the widths of the first sealing section 121 and the third sealing section 123. Since a part of the chips formed by processing the blank 20 will fall onto the carrier 100, when the blank 20 is unloaded, an air flow needs to be formed through the nozzle to blow off the chips on the carrier 100. If the first seal segment 121, the second seal segment 122, and the third seal segment 123 are equal in width, i.e., the cross-section of the seal slot 120 is rectangular, and the air stream blows away debris, there is a risk that the seal 230 will blow out of the seal slot 120 due to the air stream. The width of the first seal segment 121 in this embodiment is greater than the widths of the first seal segment 121 and the third seal segment 123, so that the fitting force between the seal 230 and the entire seal groove 120 can be effectively improved, and the seal 230 can be prevented from being blown out of the seal groove 120 under the action of the air flow in the process of blowing off the debris by the air flow.

In some embodiments, the lower end of the positioning pillar 240 is a fixed end and is fixed on the supporting member 100, and the upper end of the positioning pillar 240 is a free end. When the blank 20 is placed on the supporting member 100, the free end of the positioning column 240 can penetrate through the blank 20, so as to improve the positioning accuracy of the blank 20 and to some extent improve the stability and reliability of the clamping of the fixture 10 on the blank 20. The lower extreme of guide post 250 is the stiff end and fixes on bearing the piece 100, and the upper end of guide post 250 is the free end, and when stock spare 20 was placed on bearing the piece 100, guide post 250 contacted with the edge that bears the piece 100, under the effect of guide post 250, can improve stock spare 20's clamping efficiency and precision.

In some embodiments, first intermediate drive 300 includes first intermediate clamp block 310, rotary cylinder 320, vertical shaft 330, horizontal shaft 340, longitudinal shaft 350, and fixture 360.

The cylinder barrel of the rotary cylinder 320 may be fixed to the lower surface of the bearing component 100, the rotary shaft 321 of the rotary cylinder 320 may be inserted into the bearing component 100, a central axis of the rotary shaft 321 extends in the vertical direction, and the rotary cylinder 320 may drive the rotary shaft 321 to rotate around its central axis. The central axis of the transverse axis 340 is perpendicular to the vertical direction and extends along the width direction of the blank 20, and the transverse axis 340 penetrates through the vertical axis 330 and the rotating axis 321 at the same time, so that the vertical axis 330 can swing around the central axis of the transverse axis 340 at a certain angle relative to the rotating axis 321, that is, rotate less than 360 degrees; in a colloquial manner, the vertical shaft 330 can swing in a front-rear direction with respect to the rotation shaft 321, and the front-rear direction can be understood as a longitudinal direction of the blank member 20. The vertical shaft 330 is disposed coaxially with the rotation shaft 321 and is inserted into the carrier 100, i.e., the central axis of the vertical shaft 330 also extends in the vertical direction. Therefore, the vertical shaft 330 can rotate around the central axis extending in the vertical direction along with the rotation shaft 321, and at the same time, the vertical shaft 330 can swing at a certain angle in the front-rear direction with respect to the rotation shaft 321. The space-avoiding space 370 is formed between the vertical shaft 330 and the rotating shaft 321 at intervals along the central axis of the rotating shaft 321, in other words, the space-avoiding space 370 is formed between the vertical shaft 330 and the rotating shaft 321 at intervals in the vertical direction, and by setting the space-avoiding space 370, when the vertical shaft 330 swings relative to the rotating shaft 321, the rotating shaft 321 can be prevented from interfering with the swinging of the vertical shaft 330, and the vertical shaft 330 can be ensured to swing smoothly relative to the rotating shaft 321. The width of the space 370 can be adjusted so that the maximum angle at which the vertical shaft 330 swings in the front-rear direction with respect to the rotation shaft 321 can be adjusted. For example, the width of the avoiding distance 370 may be 0.1mm to 0.3mm, and for example, the specific value of the width of the avoiding distance 370 may be 0.2mm, or may also be 0.1mm or 0.3 mm.

The central axis of the longitudinal axis 350 is perpendicular to the vertical direction and extends along the length direction of the blank 20, and the longitudinal axis 350 is simultaneously inserted through the vertical axis 330 and the first middle clamping block 310, so that the first middle clamping block 310 can swing around the central axis of the longitudinal axis 350 relative to the vertical axis 330 by a certain angle, that is, rotate by less than 360 degrees; in a colloquial manner, the first middle clamping block 310 may swing in a left-right direction with respect to the vertical shaft 330, which may be understood as a width direction of the blank member 20. When the rotating shaft 321 drives the vertical shaft 330 to rotate around the central axis extending in the vertical direction, the vertical shaft 330 can drive the first middle clamping block 310 to rotate along the central axis extending in the vertical direction; when the vertical shaft 330 swings back and forth relative to the rotating shaft 321, the vertical shaft 330 can drive the first middle clamping block 310 to swing back and forth. Therefore, the first middle clamping block 310 has three degrees of freedom of movement, i.e., can swing in the front-back direction, can swing in the left-right direction, and can rotate around a central axis extending in the vertical direction.

The clearance gaps 380 are formed between the vertical shaft 330 and the first middle clamping block 310 at intervals along the central axis of the vertical shaft 330, in other words, the clearance gaps 380 are formed between the vertical shaft 330 and the first middle clamping block 310 at intervals along the vertical direction, and by arranging the clearance gaps 380, when the first middle clamping block 310 swings relative to the vertical shaft 330, the vertical shaft 330 can be prevented from interfering with the swinging of the first middle clamping block 310, and the first middle clamping block 310 can be ensured to swing smoothly relative to the vertical shaft 330. The width of the clearance gap 380 can be adjusted so that the maximum angle of the first middle clamping block 310 swinging in the left-right direction with respect to the vertical shaft 330 can be adjusted. For example, the width of the clearance gap 380 may be 0.1mm to 0.3mm, and for example, the specific value of the width of the clearance gap 380 may be 0.2mm, or may also be 0.1mm or 0.3 mm.

The vertical shaft 330 comprises an insertion part 331, the insertion part 331 is inserted in the middle of the first middle clamping block 310, the longitudinal shaft 350 is inserted in the insertion part 331, the first middle clamping block 310 is provided with a fixing hole 311 and two accommodating holes 312, the number of the accommodating holes 312 is two, the two accommodating holes 312 are coaxially arranged, the central axes of the two accommodating holes 312 and the central axis of the longitudinal shaft 350 can be mutually overlapped, one end of each accommodating hole 312 is communicated with the fixing hole 311, the other end of each accommodating hole 312 is communicated with the outside, and each accommodating hole 312 is used for installing the longitudinal shaft 350, namely, the longitudinal shaft 350 can be inserted in the insertion part 331 through the accommodating hole 312. Meanwhile, the two ends of the longitudinal shaft 350 are accommodated in the accommodating holes 312, which means that the longitudinal shaft 350 penetrates through the first middle clamping block 310, the number of the fixing holes 311 is also two, the accommodating holes 312 and the fixing holes 311 form a one-to-one correspondence relationship, the central axis of the fixing hole 311 extends in the vertical direction, the lower end of the fixing hole 311 is communicated with the accommodating holes 312, and the upper end of the fixing hole 311 is communicated with the outside. The fixing member 360 may be a bolt, etc., the fixing member 360 is disposed in the fixing hole 311, the fixing member 360 may be in a threaded connection with the first middle clamp block 310, and a lower end of the fixing member 360 is received in the receiving hole 312 and abuts against an end of the longitudinal shaft 350. Therefore, both ends of the longitudinal shaft 350 can be pressed against the fixing members 360, and it can be understood that the longitudinal shaft 350 is sandwiched between the two fixing members 360, and the longitudinal shaft 350 is prevented from sliding along the extending direction of the central axis thereof. When the first intermediate block 310 is damaged, the fixing member 360 may be removed from the fixing hole 311 to remove interference with the longitudinal shaft 350, so that the longitudinal shaft 350 is removed from the receiving hole 312 to release the first intermediate block 310 from the vertical shaft 330, so that the damaged first intermediate block 310 may be detached from the vertical shaft 330 for subsequent mounting of a new first intermediate block 310 on the vertical shaft 330.

The first intermediate block 310 includes a main body portion 313 and an abutting portion 314, the main body portion 313 is connected to the vertical shaft 330, two abutting portions 314 are provided at one end of the abutting portion 314, and the two abutting portions 314 are provided at intervals in the width direction of the main body portion 313. The two abutting portions 314 abut against two different bosses 25 of the first blank 21, that is, the abutting portions 314 apply a pressing force to the bosses 25 from top to bottom, so that the bosses 25 are pressed on the supporting member 100, and the first blank 21 is clamped. Similarly, two contact portions 314 are provided at the other end of the contact portion 314, and the two contact portions 314 are also provided at intervals in the width direction of the body portion 313. The two abutting portions 314 abut against two different bosses 25 on the second blank 22, that is, the abutting portions 314 apply a pressing force to the bosses 25 from top to bottom, so as to press the bosses 25 against the supporting member 100, thereby clamping the second blank 22. In short, the number of the abutting portions 314 is four, and two abutting portions 314 located at the same end of the main body portion 313 respectively press against two bosses 25 on the same blank 20.

The boss 25 has an abutment surface in contact with the abutment 314, and the distance of the abutment surface from the upper surface of the carrier 100 can be understood as the height of the boss 25. The two bosses 25 on the first blank 21 are identified as a first boss 25a and a second boss 25 b. The two bosses 25 on the second blank 22 are denoted as a third boss 25c and a fourth boss 25d, and the four abutting portions 314 on the first intermediate clamping block 310 abut against the first boss 25a, the second boss 25b, the third boss 25c and the fourth boss 25d, respectively. The first bosses 25a and the second bosses 25b are provided at intervals in the length direction (front-rear direction) of the blank 20, the third bosses 25c and the fourth bosses 25d are provided at intervals in the length direction (front-rear direction) of the blank 20, the first bosses 25a and the third bosses 25c are provided at intervals in the width direction (left-right direction) of the blank 20, and the second bosses 25b and the fourth bosses 25d are provided at intervals in the width direction (left-right direction) of the blank 20. In other words, the first boss 25a, the second boss 25b, the third boss 25c, and the fourth boss 25d are located at four right angles of one rectangle, respectively.

When the heights of the above-described four bosses 25 are equal, it is possible to make the four bosses 25 make good contact with the respective abutments 314 of the first intermediate block 310. When the heights of the four bosses 25 are not equal due to a machining error, for example, the heights of the first boss 25a and the second boss 25b are equal, the heights of the third boss 25c and the fourth boss 25d are equal, and the heights of the first boss 25a and the third boss 25c are not equal, at this time, the first middle clamping block 310 can swing by a certain angle around the longitudinal axis 350 in the left-right direction relative to the vertical axis 330, and it is ensured that the four abutting portions 314 and the four bosses 25 can all form good contact, so that the two blank members 20 are simultaneously pressed on the bearing member 100 to achieve stable and reliable clamping. For another example, when the heights of the first boss 25a and the third boss 25c are equal, the heights of the second boss 25b and the fourth boss 25d are equal, and the heights of the first boss 25a and the second boss 25b are not equal, at this time, the vertical shaft 330 can swing around the horizontal shaft 340 in the front-back direction relative to the rotating shaft 321 by a certain angle, so that the four abutting portions 314 and the four bosses 25 can all form good contact, and the two blank members 20 can be stably and reliably clamped. Therefore, in view of the front-back and left-right swinging of the first middle clamping block 310, even if the heights of the bosses 25 of the two blank members 20 are not equal due to the processing error, the abutting portion 314 of the first middle clamping block 310 can be ensured to simultaneously press the two blank members 20, so as to clamp the two blank members 20.

When the pressing relationship between the first middle clamping block 310 and the blank 20 needs to be released, the rotary cylinder 320 drives the vertical shaft 330 to rotate by a certain angle through the rotary shaft 321, and then the abutting portion 314 of the first middle clamping block 310 is separated from the two blanks 20 at the same time, so that the product 24a formed by the blanks 20 is unloaded from the carrier 100, and the blank 20 to be processed is placed on the carrier 100. When the rotary cylinder 320 drives the vertical shaft 330 to rotate by a certain angle through the rotating shaft 321, the abutting portion 314 of the first middle clamping block 310 can simultaneously press two blank pieces 20, so as to clamp the blank pieces 20.

In some embodiments, the second intermediate driver 400 includes a rotation cylinder 410 and a second intermediate clamp block 420, and the rotation cylinder 410 can drive the second intermediate clamp block 420 to rotate around a central axis extending in a vertical direction. The cylinder of the rotary cylinder 410 is fixed to the lower surface of the carrier 100, and the second middle clamp block 420 is located on the side of the upper surface of the carrier 100. The number of the second intermediate drivers 400 may be plural, so that the number of the second intermediate clamp blocks 420 is also plural, and the plural second intermediate clamp blocks 420 are interposed at opposite sides of the first intermediate block; for example, the number of the second middle clamping blocks 420 is four, two of the second middle clamping blocks 420 are located at the front side of the first middle clamping block 310, and the other two second middle clamping blocks 420 are located at the rear side of the first middle clamping block 310. One of the second middle clamping blocks 420 at the front side presses against the boss 25 on the first blank 21, and the other second middle clamping block 420 at the front side presses against the boss 25 on the second blank 22. One of the second middle clamping blocks 420 at the rear side abuts against the boss 25 on the first blank 21, and the other second middle clamping block 420 at the rear side abuts against the boss 25 on the second blank 22. Therefore, the second intermediate clamping block 420 can only press against the boss 25 on one blank 20, and the stability and reliability of clamping the blank 20 can be further improved by arranging the second intermediate driver 400.

In some embodiments, the edge driver 500 further includes an edge cylinder 510, an edge clamp block 520, and a rotation member 530. The edge cylinder 510 is fixed on the carrier 100, one end of the edge clamping block 520 is connected to the piston rod of the edge cylinder 510, one end (lower end) of the rotating member 530 is rotatably connected to the cylinder of the edge cylinder 510, and the other end (upper end) of the rotating member 530 is rotatably connected to the middle of the edge clamping block 520. The edge clamp block 520 may be equivalent to a lever and the rotating member 530 may serve as a fulcrum for the edge clamp block 520. When the piston rod of the edge cylinder 510 extends and retracts back and forth in the vertical direction, the other end of the edge clamping block 520 can be driven to move close to or away from the boss 25. When the edge clamping block 520 moves close to the boss 25 until the edge clamping block abuts against the boss 25, the blank part 20 can be clamped; the loading and unloading of the blank 20 onto the carrier 100 is also accomplished after the edge clamp blocks 520 have moved a distance away from the bosses 25.

The edge clamp block 520 is positioned outside the gap 26 between the first blank 21 and the second blank 22 so that the edge clamp block 520 can only press against the boss 25 on one of the blanks 20. The number of the edge drivers 500 is plural, so the number of the edge clamping blocks 520 is also plural, wherein a part of the edge clamping blocks 520 is used for pressing against the bosses 25 on the first blank member 21, and another part of the edge clamping blocks 520 is used for pressing against the bosses 25 on the second blank member 22. One end of the edge clamping block 520 away from the piston rod of the edge cylinder 510 may have a pressing portion 521, where the pressing portion 521 is used to press against the boss 25; the end of the edge clamping block 520 away from the piston rod of the edge cylinder 510 may have two pressing portions 521, and the two pressing portions 521 are used for pressing against two different bosses 25 on the same blank 20. When the edge clamping block 520 has two pressing portions 521, one edge driver 500 can be pressed against two bosses 25, and one edge driver 500 can be prevented from being pressed against only one boss 25, so that the arrangement of the edge driver 500 is reduced, and the structure of the clamp 10 is finally simplified.

In some embodiments, the waste driver 600 includes a rotary telescopic cylinder 610, a first rod 621, and a second rod 622, wherein one end of the first rod 621 is connected to a rotary telescopic shaft 611 of the rotary telescopic cylinder 610, and the rotary telescopic shaft 611 can perform telescopic movement in a vertical direction and can rotate around a central axis extending in the vertical direction. The other end of the first rod 621 is connected to the middle of the second rod 622, and the two ends of the second rod 622 respectively press against the middle portion 23 of the same blank 20. The cylinder of the waste driver 600 is fixed to the lower surface of the carrier 100, and the first rod 621 is simultaneously inserted through the carrier 100 and the intermediate portion 23. When the waste material driver 600 drives the second rod body 622 to rotate by a certain angle through the first rod body 621, the second rod body 622 can be located above the middle portion 23, and when the waste material driver 600 drives the second rod body 622 to move downwards through the first rod body 621 and enables the second rod body 622 to abut against the middle portion 23, the middle portion 23 can be clamped. When the waste driver 600 drives the second rod 622 to move upward through the first rod 621, and the second rod 622 is away from the middle portion 23, and the second rod 622 rotates a certain angle, the interference of the second rod 622 can be eliminated, so that the middle portion 23 is unloaded from the supporting member 100, and the blank 20 to be processed can also be placed on the supporting member 100. The scrap driver 600 clamps the middle part 23, so that the stability and reliability of clamping the blank 20 can be improved.

If the fixture 10 can only clamp one blank 20 at a time, after one blank 20 is machined, and another blank 20 is clamped on the fixture 10 to wait for the tool to be machined, the tool moves in the opposite direction and returns to the initial position, so that the feed direction of the tool can only machine one blank 20, which results in the change of the frequency in the feed direction of the tool and is not beneficial to the improvement of the machining and forming efficiency of the product 24 a. In the fixture 10 of the above embodiment, in view of at least two blank members 20 on the supporting member 100, after the first blank member 21 is processed, the reverse movement of the tool to the initial position can be avoided, so that the tool continues to move to the second blank member 22 along the same direction, so as to process the second blank member 22, that is, the feeding in the same direction can process at least two blank members 20, thereby reducing the frequency of the change in the feeding direction of the tool, and finally improving the processing and forming efficiency of the product 24 a. Meanwhile, the first middle clamping block 310 can clamp the two blank members 20 at the same time, and the arrangement of redundant parts can be omitted, so that the structure of the clamp 10 is simplified.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A fixture for forming a product from a blank having a clamping boss, the fixture comprising:

the bearing piece is used for bearing at least two blank parts, and the two adjacent blank parts are marked as a first blank part and a second blank part;

the first intermediate driver comprises a first intermediate clamping block which can move in a spacing gap between the first blank piece and the second blank piece, and the first intermediate clamping block can simultaneously press the bosses on the first blank piece and the second blank piece against the bearing piece; and

the edge driver comprises an edge clamping block positioned outside the interval gap, and the edge clamping block can press the boss on the first blank piece or the second blank piece against the bearing piece.

2. The fixture according to claim 1, wherein the first intermediate driver further comprises a vertical shaft and a longitudinal shaft connected with each other, the vertical shaft is inserted into the bearing member and can rotate around the central axis extending in the gravity direction, the central axis of the longitudinal shaft is perpendicular to the central axis of the vertical shaft and extends in the length direction of the blank member, the first intermediate clamping block can rotate around the central axis of the longitudinal shaft relative to the vertical shaft, and clearance gaps are formed between the first intermediate clamping block and the vertical shaft along the central axis of the vertical shaft.

3. The clamp according to claim 2, wherein the first intermediate driver further comprises a fixing member, the vertical shaft comprises an insertion portion inserted into the first intermediate clamping block, the longitudinal shaft is inserted into the insertion portion, the first intermediate clamping block is provided with a receiving hole and a fixing hole which are communicated with each other, two ends of the longitudinal shaft are respectively provided with the receiving hole, the fixing member is fixed in the fixing hole, and an end of the fixing member is received in the receiving hole and abuts against an end of the longitudinal shaft.

4. The fixture according to claim 1, wherein the first intermediate driver further comprises a vertical shaft, a horizontal shaft and a rotary cylinder, the vertical shaft is arranged in the bearing member in a penetrating manner and is connected with the first intermediate clamping block, the central axis of the horizontal shaft is perpendicular to the gravity direction and extends along the width direction of the blank member, the rotary cylinder comprises a rotary shaft capable of rotating around the central axis extending in the gravity direction, the horizontal shaft is arranged on the rotary shaft, the vertical shaft can rotate around the central axis of the horizontal shaft relative to the rotary shaft, and a clearance space is formed between the vertical shaft and the rotary shaft along the central axis of the rotary shaft.

5. The clamp of claim 1, wherein the carrier has an absorption hole for absorbing the blank by vacuum, and the aperture of the absorption hole is smaller than or equal to 2 mm.

6. The clamp according to claim 5, further comprising a sealing element, wherein a sealing groove is formed in the bearing element in a recessed manner and disposed around the suction hole, the sealing element is engaged with the sealing groove, the sealing groove comprises a first sealing section, a second sealing section and a third sealing section, which are sequentially disposed along a recessed direction, and a width of the second sealing section is greater than a width of the first sealing section and a width of the third sealing section.

7. The clamping apparatus according to claim 1, wherein the first intermediate clamping block comprises a main body portion and an abutting portion connected to each other, two abutting portions are respectively disposed at two ends of the main body portion, and two abutting portions located at the same end of the main body portion respectively abut against two bosses on the same blank.

8. The fixture of claim 1, further comprising a plurality of second intermediate drivers, each of the second intermediate drivers comprising a second intermediate clamping block movable in the spacing gap, the second intermediate clamping blocks capable of pressing the boss on the first or second blank against the carrier, the plurality of second intermediate clamping blocks being on opposite sides of the first intermediate clamping block.

9. The clamp of claim 1, wherein the edge driver further comprises an edge cylinder and a rotating member, one end of the edge clamping block is connected to a piston rod of the edge cylinder, one end of the rotating member is rotatably connected to a cylinder barrel of the edge cylinder, the other end of the rotating member is rotatably connected to a middle portion of the edge clamping block, and the other end of the edge clamping block is provided with a pressing portion abutting against the boss; or the other end of the edge clamping block is provided with two pressing parts which are respectively abutted with different bosses.

10. The clamp of claim 1, further comprising at least one of:

the waste material driver comprises a rotary telescopic cylinder, a first rod body and a second rod body, wherein the first rod body is connected with the rotary telescopic shaft of the rotary telescopic cylinder, the other end of the first rod body is connected with the middle of the second rod body, and two ends of the second rod body respectively press against the middle part of the same blank;

the blank material part comprises a blank material part and is characterized by further comprising a positioning column, wherein one end of the positioning column is fixed on the bearing part, and the other end of the positioning column penetrates through the blank material part;

the blank piece is characterized by further comprising a guide post, wherein the guide post is fixed on the bearing piece and is in contact with the edge of the blank piece.

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