Clamping jig and automatic clamping machine

Abstract

The utility model relates to the technical field of clamping, in particular to a clamping jig and an automatic clamping machine, which comprises a base, a support table, a positioning structure and a rotary pressing mechanism, the positioning structure comprises a profiling carrier and two peripheral positioning blocks, and the rotary pressing mechanism comprises two rotary pressing modules. The rotary downward-pressing module comprises a rotary downward-pressing driver, a rotary downward-pressing block, a positioning column located on the outer side of the profiling carrier and a limiting block arranged on the top face of the supporting table, the rotary downward-pressing block is movably arranged above the profiling carrier, a positioning hole is formed in the rotary downward-pressing block, and the positioning hole is matched with the positioning column in a concave-convex mode; when the rotary pressing block rotates to the position above the profiling carrier, the limiting block abuts against the rotary pressing block, and the positioning hole is aligned with the positioning column. The device is simple in structure, convenient to produce and manufacture, low in cost and high in workpiece positioning precision, and the rotating position precision of the rotating lower pressing block can be guaranteed, so that it is guaranteed that the workpiece can be accurately pressed, and the workpiece cannot be crushed.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamping technical field especially is a kind of clamping fixture and automatic clamping machine. BACKGROUND

[0002] Clamping fixture refers to the device used to fix processing object (such as workpiece, etc.) in the mechanical manufacturing process, so that the processing object is in the correct position to accept processing or detection. There are many types of clamping fixtures in the prior art, and each type has different functions. In the existing patent, the Chinese patent document with application number 201921926063.4 discloses a kind of automobile parts batch quick clamping processing pneumatic hydraulic clamp, comprising a set of rotary oil cylinder, a set of clamping arm, a set of lifting cylinder, a set of parts, a set of cushion block, a set of positioning pin, fixture base and fixture support plate, the fixture support plate is arranged on the upper end face of fixture base, the set of rotary oil cylinder is arranged on the fixture support plate, the set of rotary oil cylinder and the set of clamping arm are arranged one by one, and the clamping arm is connected with the piston rod of rotary oil cylinder, the two sides of rotary oil cylinder are symmetrically provided with cushion block, and the cushion block is fixedly arranged on the fixture support plate, the set of parts and the set of cushion block are arranged one by one, and the parts are arranged on the cushion block by positioning pin, the rotary oil cylinder can drive the clamping arm to press the parts on the cushion block, the set of lifting cylinder is arranged on the end face of fixture support plate away from cushion block, the set of cushion block and the set of lifting cylinder are arranged one by one, and the lifting cylinder can pass through the fixture support plate and the cushion block and be attached to the parts. Although the automobile parts batch quick clamping processing pneumatic hydraulic clamp can clamp a large number of parts at the same time, improves work efficiency and reduces labor intensity of workers, but since the clamping arm is rotated only by the rotary oil cylinder, it is difficult to ensure the rotation position accuracy of the clamping arm. Once the rotary oil cylinder drives the clamping arm to rotate and the position deviates, the position of the clamping arm pressing the parts will deviate, which may easily cause the parts to be damaged.

[0003] Therefore, the defect is very obvious, and a solution needs to be provided. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the purpose of the utility model is to provide a kind of clamping fixture and automatic clamping machine.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The clamping jig comprises a base, a supporting table arranged on the base, a positioning structure arranged on the top surface of the supporting table, and a rotating and pressing mechanism arranged on the base, wherein the positioning structure comprises a profiling carrier arranged on the supporting table and two peripheral positioning blocks symmetrically arranged on the supporting table and located on both sides of the supporting table, and the rotating and pressing mechanism comprises two rotating and pressing modules symmetrically arranged on both sides of the supporting table, wherein each rotating and pressing module comprises a rotating and pressing driver arranged on the base, a rotating and pressing block arranged on the rotating and pressing end of the rotating and pressing driver, a positioning column arranged on the top surface of the supporting table and located on the outer side of the profiling carrier, and a limiting block arranged on the top surface of the supporting table, and the rotating and pressing block is movably arranged above the profiling carrier, the rotating and pressing block is provided with a positioning hole, and the positioning hole is matched with the positioning column in a concave-convex mode; when the rotating and pressing block is rotated to above the profiling carrier, the limiting block is in abutment with the rotating and pressing block, and the positioning hole is aligned with the positioning column.

[0007] Further, the top surface of the profiling carrier is provided with a foolproof column.

[0008] Further, the top surface of the supporting table is concavely provided with an adjusting groove, and the limiting block is slidingly arranged in the adjusting groove and locked in the adjusting groove through locking pieces.

[0009] Further, the number of the positioning structures and the number of the rotating and pressing mechanisms are both multiple, and the multiple positioning structures are arranged in one-to-one correspondence with the multiple rotating and pressing mechanisms.

[0010] Further, the multiple positioning structures are arranged in a straight line on the supporting table.

[0011] Further, the positioning structure further comprises multiple side positioning pins arranged on the supporting table, and the multiple side positioning pins are arranged around the profiling carrier.

[0012] Further, the side edge of the base is provided with a clamping groove.

[0013] The utility model further provides an automatic clamping machine, which comprises a taking and placing manipulator and the clamping jig.

[0014] Further, the automatic clamping machine further comprises a feeding disc and a collecting disc arranged on one side of the clamping jig, and the taking and placing manipulator is movably arranged above the clamping jig, the feeding disc and the collecting disc.

[0015] The utility model discloses a beneficial effect: in practical application, at the beginning, rotate and press down the block to be located at the outside of the profiling carrier, place work piece on the profiling carrier, and two peripheral positioning blocks position two sides of work piece respectively, guarantee the positional accuracy and stability of work piece, then rotate and press down the driver drive rotate and press down the block to rotate to the top of the profiling carrier, until rotate and press down the block and the limit block resist, after limiting rotate and press down the block, drive rotate and press down the block to press down, make rotate and press down the block press work piece on the profiling carrier, to realize the fixation of work piece, in the process of rotate and press down the block press down, the positioning column will insert into the positioning hole, to position rotate and press down the block, guarantee the positional accuracy and stability of rotate and press down the block, guarantee accurate press down work piece, when the positioning column can not insert into the positioning hole, prove that the position of rotate and press down the block deviates, and the positioning column will resist rotate and press down the block, make rotate and press down the block can not press down, avoid that rotate and press down the block press down work piece due to positional deviation.The utility model discloses simple structure, convenient production and manufacture, low in cost, and the positioning accuracy of work piece is high, and the rotational position accuracy of rotate and press down the block can be guaranteed, so that work piece can be pressed accurately, and work piece can not be pressed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the automatic clamping machine of the utility model.

[0017] Figure 2 It is the three-dimensional structure schematic diagram of the clamping fixture of the utility model.

[0018] BRIEF DESCRIPTION OF DRAWINGS:

[0019] 1, base, 2, support table, 3, positioning structure, 4, rotate and press down mechanism, 5, profiling carrier, 6, peripheral positioning block, 7, rotate and press down module, 8, rotate and press down driver, 9, rotate and press down block, 10, positioning column, 11, limit block, 12, positioning hole, 13, foolproof column, 14, adjusting groove, 15, side positioning pin, 16, clamping groove, 17, taking and placing manipulator, 18, feeding tray, 19, receiving tray, 20, work piece. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of those skilled in the art, the utility model is further explained below in combination with examples and drawings, and the content mentioned in the implementation manner is not the limitation of the utility model.

[0021] As Figure 1 And Figure 2The utility model provides a kind of clamping fixture, it includes base 1, is equipped in the support table 2 of base 1, is positioned structure 3 and is equipped in the rotating lower pressure mechanism 4 of base 1, positioned structure 3 includes setting in the profiling carrier 5 of support table 2 and the two peripheral positioning blocks 6 of being located at the both sides of support table 2 and being symmetrically set in support table 2, peripheral positioning block 6 is in N character type, rotating lower pressure mechanism 4 includes the two rotating lower pressure module 7 of being located at the both sides of support table 2 and being symmetrically set, rotating lower pressure module 7 includes rotating lower pressure driver 8 being equipped in base 1, rotating lower pressure block 9 being equipped in the rotating lower pressure end of rotating lower pressure driver 8, positioning column 10 being equipped in the top surface of support table 2 and being located at the outside of profiling carrier 5 and limiting block 11 being equipped in the top surface of support table 2, rotating lower pressure block 9 movably set in the above of profiling carrier 5, rotating lower pressure block 9 is equipped with positioning hole 12, positioning hole 12 and positioning column 10 concave convex adaptation;When rotating lower pressure block 9 rotates to the above of profiling carrier 5, limiting block 11 and rotating lower pressure block 9 resist, positioning hole 12 is aligned positioning column 10.

[0022] In practical application, initially, rotating lower pressure block 9 is located at the outside of profiling carrier 5, workpiece 20 is placed on profiling carrier 5, two peripheral positioning blocks 6 respectively position the two side edges of workpiece 20, guarantee the positional accuracy and stability of workpiece 20, then rotating lower pressure driver 8 drives rotating lower pressure block 9 to rotate to the above of profiling carrier 5, until rotating lower pressure block 9 and limiting block 11 resist, after limiting rotating lower pressure block 9, drive rotating lower pressure block 9 to press down, so that rotating lower pressure block 9 presses workpiece 20 tightly on profiling carrier 5, to realize the fixation of workpiece 20, in the process of pressing down rotating lower pressure block 9, positioning column 10 will be inserted into positioning hole 12, to position rotating lower pressure block 9, guarantee the positional accuracy and stability of rotating lower pressure block 9, guarantee to accurately press down workpiece 20;When positioning column 10 cannot be inserted into positioning hole 12, it proves that the position of rotating lower pressure block 9 deviates, positioning column 10 will resist rotating lower pressure block 9, so that rotating lower pressure block 9 cannot press down, avoid that rotating lower pressure block 9 breaks workpiece 20 due to positional deviation.The structure of the utility model is simple, convenient for production and manufacture, low in cost, high in positioning accuracy for workpiece 20, and can guarantee the rotational position accuracy of rotating lower pressure block 9, to ensure that workpiece 20 can be pressed tightly accurately, and workpiece 20 will not be broken.

[0023] Specifically, rotating lower pressure driver 8 can adopt rotating lower pressure cylinder.

[0024] In the embodiment, the top surface of profiling carrier 5 is convexly provided with foolproof column 13.When workpiece 20 is placed on profiling carrier 5, foolproof column 13 is inserted into the foolproof hole of workpiece 20, to play the foolproof role for workpiece 20, avoid that workpiece 20 is placed reversely on profiling carrier 5 and causes processing error.

[0025] In the embodiment, the top surface of the support table 2 is concavely provided with an adjusting groove 14, and the limiting block 11 is slidingly arranged in the adjusting groove 14 and locked in the adjusting groove 14 by a locking member. Specifically, the locking member can be a bolt. In actual application, the position of the limiting block 11 in the adjusting groove 14 can be adjusted to adjust the position of the rotating and pressing block 9.

[0026] In the embodiment, the number of the positioning structures 3 and the number of the rotating and pressing mechanisms 4 are both multiple, the multiple positioning structures 3 are arranged in one-to-one correspondence with the multiple rotating and pressing mechanisms 4, and the multiple positioning structures 3 are arranged in a straight line on the support table 2. This structural design increases the number of clamped workpieces 20.

[0027] In the embodiment, the positioning structure 3 further includes multiple side positioning pins 15 arranged on the support table 2, and the multiple side positioning pins 15 are arranged around the profiling carrier 5. This structural design is conducive to quickly placing the workpiece 20 on the profiling carrier 5.

[0028] In the embodiment, the side edge of the base 1 is provided with a clamping groove 16. In actual application, the workpiece 20 can be pressed against the present clamping jig, and then the present clamping jig is locked with the clamping groove 16 by the locking mechanism to lock the base 1 of the present clamping jig on the machine tool. Alternatively, the present clamping jig can be locked on the machine tool by the locking mechanism and the clamping groove 16 first, and then the workpiece 20 is placed on the profiling carrier 5 for pressing and fixing. The clamping groove 16 is arranged to facilitate locking and fixing the base 1 of the present clamping jig on an external structure (such as a worktable of a machine tool).

[0029] Specifically, the rotating and pressing block 9 is embedded with a touch switch (such as a microswitch) on the side close to the limiting block 11, the limiting block 11 is used to abut against the touch switch, and the touch switch is electrically connected with the rotating and pressing driver 8. When the touch switch is triggered by abutting against the limiting block 11, it proves that the rotating and pressing block 9 is rotated to the position, the touch switch feeds back a signal to the rotating and pressing driver 8, so that the rotating and pressing driver 8 drives the rotating and pressing block 9 to press down.

[0030] The utility model also provides a kind of automatic clamping machine, including taking and placing manipulator 17 and above clamping jig;Automatic clamping machine further include the feeding tray 18 and the material receiving tray 19 of being set to the side of clamping jig, taking and placing manipulator 17 movably set in the above of clamping jig, feeding tray 18 and material receiving tray 19.In practical application, taking and placing manipulator 17 picks up workpiece 20 on feeding tray 18 and places workpiece 20 on profiling carrier 5, clamping jig is fixed to workpiece 20 on profiling carrier 5 and is pressed tightly, external processing equipment can be processed to workpiece 20, after processing, clamping jig loosens workpiece 20, taking and placing manipulator 17 takes away and places this workpiece 20 after processing on material receiving tray 19, to realize the automatic feeding and discharging of workpiece 20.

[0031] All technical features in the embodiment can be freely combined according to actual needs.

[0032] The above embodiment is a preferred implementation scheme of the utility model, in addition, the utility model can be realized in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.

Claims

1. A clamping jig characterized by: The device comprises a base (1), a supporting table (2) installed on the base (1), a positioning structure (3) arranged on the top surface of the supporting table (2), and a rotating and pressing mechanism (4) installed on the base (1). The positioning structure (3) comprises a profiling carrier (5) arranged on the supporting table (2) and two peripheral positioning blocks (6) symmetrically arranged on both sides of the supporting table (2). The rotating and pressing mechanism (4) comprises two rotating and pressing modules (7) symmetrically arranged on both sides of the supporting table (2). Each rotating and pressing module (7) comprises a rotating and pressing driver (8) installed on the base (1), a rotating and pressing block (9) installed on the rotating and pressing end of the rotating and pressing driver (8), a positioning column (10) arranged on the top surface of the supporting table (2) and located outside the profiling carrier (5), and a limiting block (11) arranged on the top surface of the supporting table (2). The rotating and pressing block (9) is movably arranged above the profiling carrier (5). The rotating and pressing block (9) is provided with a positioning hole (12) which is in concave-convex matching with the positioning column (10). When the rotating and pressing block (9) is rotated to above the profiling carrier (5), the limiting block (11) is in abutment with the rotating and pressing block (9), and the positioning hole (12) is aligned with the positioning column (10).

2. The fixture of claim 1, wherein: The top surface of the profiling carrier (5) is provided with a foolproof column (13).

3. The fixture of claim 1 wherein: The top surface of the supporting table (2) is concavely provided with an adjusting groove (14), and the limiting block (11) is slidably arranged in the adjusting groove (14). The limiting block (11) is locked in the adjusting groove (14) by a locking member.

4. A fixture according to any one of claims 1 to 3, wherein: The number of the positioning structures (3) and the number of the rotating and pressing mechanisms (4) are both multiple. The multiple positioning structures (3) are arranged in one-to-one correspondence with the multiple rotating and pressing mechanisms (4).

5. The fixture of claim 4 wherein: The multiple positioning structures (3) are arranged in a straight line on the supporting table (2).

6. The fixture of claim 1 wherein: The positioning structure (3) further comprises multiple side positioning pins (15) arranged on the supporting table (2). The multiple side positioning pins (15) are arranged around the profiling carrier (5).

7. The fixture of claim 1 wherein: The side edge of the base (1) is provided with a clamping groove (16).

8. An automatic chucking machine characterized by: The device further comprises a taking and placing manipulator (17) and the clamping jig according to any one of claims 1 to 7.

9. An automatic chucking machine according to claim 8, characterized in that: The automatic clamping machine further comprises a feeding tray (18) and a collecting tray (19) arranged on one side of the clamping jig. The taking and placing manipulator (17) is movably arranged above the clamping jig, the feeding tray (18) and the collecting tray (19).

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