Clamping device

Abstract

The utility model belongs to the technical field of clamps, and discloses a clamping device which comprises a mounting plate, a clamping mechanism, a guide assembly, a driving mechanism and two transmission mechanisms. The mounting plate is provided with a reference plane, the two transmission mechanisms are arranged on the reference plane, each transmission mechanism is connected with one clamping mechanism, and the two clamping mechanisms are used for clamping workpieces. The driving mechanism is arranged on the reference plane and is in driving connection with the two transmission mechanisms, and the driving mechanism can drive the two transmission mechanisms to synchronously and reversely move in the first direction. The guide assembly is arranged on the reference plane, and the transmission mechanism is slidably connected to the guide assembly and can move in the first direction. According to the clamping device, the guide assembly, the driving mechanism and the two transmission mechanisms are all arranged on the same datum plane. During installation, the guide assembly, the driving mechanism and the two transmission mechanisms are all installed with the datum plane as the datum, so that the overall structure of the clamping device is tighter.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamp technical field especially relates to a clamping device. BACKGROUND

[0002] In order to make PCB (Printed Circuit Board) have good conductive performance, need to carry out electroplating to printed circuit board. In the electroplating process, usually uses the clamping device to carry out the feeding and discharging operation to printed circuit board.

[0003] The existing clamping device usually installs two clamping mechanisms on the frame built of aluminum profile and clamps the two side edges of printed circuit board, in order to make the clamping device can clamp printed circuit board of different sizes, usually through the drive mechanism drive transmission mechanism drives two clamping mechanisms to move close or far away synchronously to adjust the interval of two clamping mechanisms, and improves the stability of the movement of clamping mechanism through the setting guide assembly.

[0004] But because the frame built of aluminum profile is low in precision, when installing, transmission mechanism and drive mechanism are difficult to install on the same straight line, transmission mechanism and guide assembly are also difficult to be parallel to each other, and then the clamping mechanism moves very easily to appear the phenomenon of jamming, resulting in abnormal stop of equipment, causing printed circuit board batch scrap, causing significant loss. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of clamping device, its overall structure is more compact, avoid the phenomenon of jamming when clamping mechanism moves, ensure normal operation of equipment.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Provide a kind of clamping device, comprising:

[0008] Mounting plate, the mounting plate has reference plane;

[0009] Two transmission mechanisms, are set on the reference plane, each transmission mechanism is connected with one clamping mechanism, and two clamping mechanisms are used to clamp workpiece;

[0010] Drive mechanism, the drive mechanism is set on the reference plane, and is drivingly connected to two transmission mechanisms, and the drive mechanism can drive two transmission mechanisms to move reversely along the first direction synchronously;

[0011] Guide assembly, the guide assembly is set on the reference plane, and the transmission mechanism is slidably connected to the guide assembly and can move along the first direction.

[0012] As a preferred scheme of the clamping device, the driving mechanism is located between the two transmission mechanisms, and the two transmission mechanisms are connected to two ends of the driving mechanism respectively.

[0013] As a preferred scheme of the clamping device, the transmission mechanism comprises a screw rod and an adjusting block, the screw rod is connected to the driving mechanism, the screw rods of the two transmission mechanisms are opposite in screw direction, each screw rod is threadedly connected with one adjusting block, and the clamping mechanism is connected to the adjusting block.

[0014] As a preferred scheme of the clamping device, the transmission mechanism further comprises a screw rod fixing seat, the screw rod fixing seat is arranged on the reference plane, the screw rod fixing seat is provided with a mounting hole, and the screw rod is rotationally connected in the mounting hole so that the axis of the screw rod is parallel to the reference plane.

[0015] As a preferred scheme of the clamping device, the driving mechanism comprises a motor, the motor is provided with two output ends, and each output end is connected with a screw rod.

[0016] As a preferred scheme of the clamping device, a groove is formed in the reference plane, and the motor is mounted in the groove, so that the axis of the output end is flush with the axis of the screw rod and parallel to the reference plane.

[0017] As a preferred scheme of the clamping device, the guide assembly comprises a sliding rail and a sliding block, the sliding rail is connected to the reference plane and extends along the first direction, the top wall of the sliding rail is parallel to the reference plane, the sliding block is slidingly connected to the sliding rail, and the adjusting block is connected to the sliding block.

[0018] As a preferred scheme of the clamping device, the sliding rail is provided with two sliding rails, the two sliding rails are parallel to each other and symmetrical about the axis of the screw rod, and the two sliding blocks are connected to two ends of the adjusting block respectively.

[0019] As a preferred scheme of the clamping device, the clamping mechanism comprises a supporting piece and a clamping piece, the supporting piece is connected to the adjusting block, and the clamping piece is connected to the supporting piece.

[0020] As a preferred scheme of the clamping device, the clamping device further comprises a protective cover, the protective cover is connected to the mounting plate, the transmission mechanism, the driving mechanism and the guide assembly are arranged in the protective cover, the protective cover is provided with a long strip through hole extending along the first direction, and the transmission mechanism partially penetrates out of the long strip through hole and is connected to the clamping mechanism.

[0021] The clamping device has the following beneficial effects:

[0022] The utility model provides a clamping device, it includes mounting plate, clamping mechanism, guide assembly, drive mechanism and two transmission mechanism. The mounting plate has reference plane, two transmission mechanisms all set up on the reference plane, each transmission mechanism is connected with a clamping mechanism, and two clamping mechanisms are used for clamping work piece. Drive mechanism sets up on the reference plane, and drives the connection in two transmission mechanisms, and drive mechanism can drive two transmission mechanisms and moves reversely along the first direction synchronously. Guide assembly sets up on the reference plane, and transmission mechanism slidingly connects in guide assembly and can move along the first direction. The clamping device sets up guide assembly, drive mechanism and two transmission mechanisms all on same reference plane. When installing, guide assembly, drive mechanism and two transmission mechanisms all install with reference plane as the reference, make the overall structure of clamping device more closely, easily make transmission mechanism and drive mechanism install on same straight line, easily make transmission mechanism and guide assembly parallel to each other, avoid the phenomenon that clamping mechanism moves and appears to be stuck, and then cause printed circuit board batch to be scrapped, ensure that equipment normally operates. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the explosion diagram of the clamping device provided by the utility model embodiment;

[0024] Figure 2 It is the structure schematic diagram of the clamping device provided by the utility model embodiment;

[0025] Figure 3 It is the local structure schematic diagram of the clamping device provided by the utility model embodiment;

[0026] Figure 4 It is the structure schematic diagram of the clamping piece provided by the utility model embodiment.

[0027] In the drawing:

[0028] 1, mounting plate; 11, recess;

[0029] 2, clamping mechanism; 21, support piece; 22, clamping piece;

[0030] 3, transmission mechanism; 31, screw fixed seat; 32, screw; 33, adjusting block;

[0031] 4, drive mechanism; 41, motor fixed seat; 42, motor;

[0032] 5, guide assembly; 51, slide rail; 52, sliding block;

[0033] 6, protective cover; 61, long strip through -hole. DETAILED DESCRIPTION

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] like Figures 1-3 As shown, this embodiment provides a clamping device, which includes a mounting plate 1, a clamping mechanism 2, a guide assembly 5, a drive mechanism 4, and two transmission mechanisms 3. The mounting plate 1 has a reference plane, and both transmission mechanisms 3 are disposed on the reference plane. Each transmission mechanism 3 is connected to a clamping mechanism 2, and the two clamping mechanisms 2 are used to clamp workpieces. The drive mechanism 4 is disposed on the reference plane and is driven and connected to the two transmission mechanisms 3. The drive mechanism 4 can drive the two transmission mechanisms 3 to move synchronously in opposite directions along a first direction. The guide assembly 5 is disposed on the reference plane, and the transmission mechanisms 3 are slidably connected to the guide assembly 5 and can move along the first direction.

[0039] The clamping device sets the guide assembly 5, the driving mechanism 4 and the two transmission mechanisms 3 on the same reference plane. During installation, the guide assembly 5, the driving mechanism 4 and the two transmission mechanisms 3 are installed based on the reference plane, so that the overall structure of the clamping device is more compact, the transmission mechanism 3 and the driving mechanism 4 are easily installed on the same straight line, the transmission mechanism 3 and the guide assembly 5 are easily parallel to each other, the phenomenon of jamming of the clamping mechanism 2 during movement is avoided, and the phenomenon of batch scrapping of printed circuit boards is caused, thereby ensuring normal operation of the equipment.

[0040] Specifically, the first direction is the X-axis direction, and the second direction is the Y-axis direction. The two clamping mechanisms 2 are clamped at two ends of the workpiece respectively, and the two clamping mechanisms 2 are driven by the transmission mechanism 3 to move close to or away from each other to adjust the distance between the two clamping mechanisms 2, thereby clamping workpieces of different sizes. In this embodiment, the clamping mechanism 2 is used to clamp a printed circuit board. By slidingly connecting the transmission mechanism 3 to the guide assembly 5, the stability of the movement of the transmission mechanism 3 is improved. In this embodiment, the reference plane is precisely milled by a milling machine to have high precision, thereby improving the installation precision of the guide assembly 5, the driving mechanism 4 and the two transmission mechanisms 3.

[0041] Optionally, the driving mechanism 4 is located between the two transmission mechanisms 3, and the two transmission mechanisms 3 are connected to the two ends of the driving mechanism 4 respectively, so that the driving mechanism 4 can drive the two transmission mechanisms 3 simultaneously.

[0042] Specifically, the mounting plate 1 extends along the first direction, and the two transmission mechanisms 3 are connected to the two ends of the driving mechanism 4 along the first direction.

[0043] Optionally, the transmission mechanism 3 comprises a lead screw 32 and an adjusting block 33, the lead screw 32 is connected to the driving mechanism 4, the lead screws 32 of the two transmission mechanisms 3 are opposite in thread direction, each lead screw 32 is threadedly connected with one adjusting block 33, the clamping mechanism 2 is connected to the adjusting block 33, by driving the lead screw 32 to rotate, the adjusting blocks 33 on the two lead screws 32 can be synchronously moved in opposite directions, thereby driving the two clamping mechanisms 2 to move in opposite directions synchronously, so as to adjust the distance between the two clamping mechanisms 2 according to the size of the printed circuit board.

[0044] Specifically, the lead screws 32 of the two transmission mechanisms 3 extend along the first direction, and one end of the lead screw 32 is connected to the driving mechanism 4. The adjusting block 33 has a block structure. The adjusting block 33 is provided with a threaded hole matched with the lead screw 32, the lead screw 32 is threadedly connected to the threaded hole, and the rotation of the lead screw 32 can drive the adjusting block 33 to move along the first direction. The bottom surface of the clamping mechanism 2 is attached to the top surface of the adjusting block 33, and is fixedly connected to the adjusting block 33 through bolts. A gap is provided between the bottom surface of the adjusting block 33 and the reference plane, so as to avoid friction between the adjusting block 33 and the mounting plate 1 during movement.

[0045] Further, the transmission mechanism 3 further comprises a screw fixing base 31, the screw fixing base 31 is arranged on the reference plane, the screw fixing base 31 is provided with a mounting hole, and the screw 32 is rotationally connected in the mounting hole so that the axis of the screw 32 is parallel to the reference plane.

[0046] Specifically, the two screw fixing bases 31 are fixedly connected to the two ends of the mounting plate 1 along the first direction by screws. Bearings are arranged in the mounting holes, and the end of the screw 32 away from the driving mechanism 4 is rotationally connected to the mounting hole through the bearing, and the end of the screw 32 away from the driving mechanism 4 is supported by the screw fixing base 31, so that the transmission is more stable, and the axis of the screw 32 is parallel to the reference plane.

[0047] Optionally, the driving mechanism 4 comprises a motor 42, the motor 42 is provided with two output ends, each output end is connected with a screw 32, and the motor 42 can drive the two screws 32 to rotate synchronously.

[0048] Specifically, the motor 42 adopts a double-head motor, and the two screws 32 are fixedly connected with the two output ends of the motor 42 through shaft couplings. The driving mechanism 4 further comprises a motor fixing base 41, the motor fixing base 41 is arranged on the reference plane and fixedly connected to the mounting plate 1 by screws. The motor fixing base 41 is a plate structure. The motor fixing base 41 is provided with a waist-shaped hole extending in the vertical direction, and the motor 42 is provided with a threaded hole, the screw is arranged in the waist-shaped hole and threadedly connected to the threaded hole, so as to fix the motor 42 to one side of the motor fixing base 41 along the first direction. By arranging the waist-shaped hole, the position of the motor 42 in the vertical direction can be adjusted, so that the axis of the output end is flush with the axis of the screw 32 and parallel to the reference plane.

[0049] Further, the reference plane is provided with a groove 11, and the motor 42 is arranged in the groove 11, so that the axis of the output end is flush with the axis of the screw 32 and parallel to the reference plane.

[0050] Specifically, the groove 11 is arranged on the mounting plate 1 corresponding to the motor 42, and the width and length of the groove 11 are greater than the size of the motor 42, so that the motor 42 can be arranged in the groove 11. By arranging the groove 11, the motor 42 has a larger adjustment range in the vertical direction, and the axis of the output end can be flush with the axis of the screw 32 and parallel to the reference plane.

[0051] Optionally, the guide assembly 5 comprises a sliding rail 51 and a sliding block 52, the sliding rail 51 is connected to the reference plane and extends along the first direction, the top wall of the sliding rail 51 is parallel to the reference plane, the sliding block 52 is slidingly connected to the sliding rail 51, and the adjusting block 33 is connected to the sliding block 52. Through the cooperation of the sliding rail 51 and the sliding block 52, the influence of the guide assembly 5 on the guiding friction of the moving direction of the adjusting block 33 can be reduced.

[0052] Specifically, the mounting plate 1 is provided with threaded holes corresponding to the two ends of the slide rail 51, screws are screwed into the threaded holes, and the screw heads abut against the ends of the slide rail 51 to fix the slide rail 51 on the mounting plate 1. The slide block 52 is provided with a sliding groove and is slidably connected with the slide rail 51. The adjusting block 33 is fixedly connected with the slide block 52 by screws.

[0053] Further, the slide rail 51 is provided with two, the two slide rails 51 are parallel to each other and symmetric about the axis of the lead screw 32, and the two slide blocks 52 are respectively connected to the two ends of the adjusting block 33. By symmetrically arranging the two slide rails 51, the movement of the adjusting block 33 is more stable.

[0054] Optionally, as shown in Figure 1 and Figure 4 , the clamping mechanism 2 comprises a supporting piece 21 and a clamping piece 22, the supporting piece 21 is connected to the adjusting block 33, and the clamping piece 22 is connected to the supporting piece 21 to clamp and fix the printed circuit board.

[0055] Specifically, the supporting piece 21 is a supporting plate extending in the second direction, the bottom surface of the supporting piece 21 is parallel to the reference plane, and the supporting piece 21 is fixedly connected with the adjusting block 33 by screws. A plurality of clamping pieces 22 are arranged on the supporting piece 21 in the second direction, and the plurality of clamping pieces 22 are respectively fixedly connected to the supporting piece 21 by screws. The structure of the specific clamping piece 22 is referred to the prior art, and this embodiment will not be described here.

[0056] Optionally, as shown in Figure 1 and Figure 2 , the clamping device further comprises a protective cover 6, the protective cover 6 is connected to the mounting plate 1, the transmission mechanism 3, the driving mechanism 4 and the guide assembly 5 are arranged in the protective cover 6, the protective cover 6 is provided with a long strip through hole 61 extending in the first direction, the transmission mechanism 3 partially penetrates the long strip through hole 61 and is connected to the clamping mechanism 2, the protective cover 6 can prevent dust from entering, and only the clamping mechanism 2 is arranged outside the protective cover 6, so that the overall structure is more compact and beautiful.

[0057] Specifically, the protective cover 6 is fixedly connected with the side wall of the mounting plate 1 by screws. Two protrusions are arranged on each adjusting block 33 in the second direction, the top surfaces of the two protrusions are parallel to the reference plane and are located on the same horizontal plane. The top of the protective cover 6 is provided with a long strip through hole 61 extending in the first direction corresponding to the position of the protrusion, the protrusion partially penetrates the long strip through hole 61, the bottom surface of the supporting piece 21 is attached to the top surfaces of the two protrusions, and the supporting piece 21 is fixed with the two protrusions by screws, so that the supporting piece 21 is parallel to the reference plane, while reducing the area of the through hole on the protective cover 6, the connecting strength between the adjusting block 33 and the supporting piece 21 is higher.

[0058] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A clamping device, characterized in that The utility model relates to a kind of workpiece clamping device, including: Mounting plate (1), the mounting plate (1) has reference plane; Two transmission mechanisms (3) are arranged on the reference plane, each transmission mechanism (3) is connected with a clamping mechanism (2), and two clamping mechanisms (2) are used to clamp workpiece; Driving mechanism (4) is arranged on the reference plane, and is drivingly connected to two transmission mechanisms (3), and the driving mechanism (4) can drive two transmission mechanisms (3) to move synchronously in the first direction in reverse; Guide assembly (5) is arranged on the reference plane, and transmission mechanism (3) is slidably connected to guide assembly (5) and can move in the first direction.

2. The clamping device of claim 1, wherein The driving mechanism (4) is located between two transmission mechanisms (3), and two transmission mechanisms (3) are respectively connected to two ends of the driving mechanism (4).

3. The clamping device of claim 2, wherein The transmission mechanism (3) includes screw rod (32) and adjusting block (33), the screw rod (32) is connected to the driving mechanism (4), the screw rod (32) of two transmission mechanisms (3) is opposite in the direction of thread, each screw rod (32) is threadedly connected with one adjusting block (33), and the clamping mechanism (2) is connected to the adjusting block (33).

4. The clamping device of claim 3, wherein The transmission mechanism (3) further includes screw rod fixing seat (31), the screw rod fixing seat (31) is arranged on the reference plane, the screw rod fixing seat (31) is provided with mounting hole, and the screw rod (32) is rotatably connected in the mounting hole so that the axis of the screw rod (32) is parallel to the reference plane.

5. The clamping device of claim 3, wherein The driving mechanism (4) includes motor (42), and the motor (42) is provided with two output ends, and each output end is connected with one screw rod (32).

6. The clamping device of claim 5, wherein The reference plane is provided with recess (11), and the motor (42) is mounted in the recess (11), so that the axis of the output end is flush with the axis of the screw rod (32) and parallel to the reference plane.

7. The clamping device of claim 3, wherein The guide assembly (5) includes slide rail (51) and sliding block (52), the slide rail (51) is connected to the reference plane and extends in the first direction, the top wall of the slide rail (51) is parallel to the reference plane, and the sliding block (52) is slidably connected to the slide rail (51), and the adjusting block (33) is connected to the sliding block (52).

8. The clamping device of claim 7, wherein The slide rail (51) is provided with two, and two slide rails (51) are parallel to each other and symmetrical about the axis of the screw rod (32), and two sliding blocks (52) are respectively connected to two ends of the adjusting block (33).

9. The clamping device of claim 3, wherein The clamping mechanism (2) includes support (21) and clamping piece (22), the support (21) is connected to the adjusting block (33), and the clamping piece (22) is connected to the support (21).

10. The clamping device according to any one of claims 1-9, characterized in that The clamping device further comprises a protective cover (6) connected to the mounting plate (1), the transmission mechanism (3), the driving mechanism (4) and the guide assembly (5) are arranged in the protective cover (6), and a long-hole through hole (61) extending along the first direction is arranged on the protective cover (6), and the transmission mechanism (3) partially penetrates through the long-hole through hole (61) and is connected to the clamping mechanism (2).

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