Four-axis rotary table clamping device

Abstract

The utility model relates to the technical field of machining, and discloses a four-axis rotary table clamping device which comprises an installation base, a fixing base is fixedly connected to the installation base, a connecting plate is arranged on the fixing base, a cushion block is fixedly connected to the center of the connecting plate, a plurality of clamping pieces are evenly arranged on the connecting plate in the circumferential direction, and the clamping pieces are fixedly connected to the cushion block. The clamping pieces are slidably connected with the connecting plate, driving discs are slidably connected to the outer walls of the multiple clamping pieces, driving pieces for driving the driving discs to rotate to control the multiple clamping pieces to be close to or away from the cushion blocks synchronously are arranged on the mounting base, the mounting base is slidably connected with a pressing plate, and the pressing plate is located over the cushion blocks. And a driving assembly for controlling the pressing plate to reciprocate in the vertical direction is arranged on the mounting base. The clamping device can clamp long workpieces and special-shaped workpieces, and has the advantages of being simple in structure and good in clamping effect.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a four-axis turntable clamping device. Background Art

[0002] A four-axis turntable refers to a turntable with four movement directions. The servo drive controls the rotation of the servo motor and moves through the lead screw. It is suitable for sports occasions with very high control precision. The speed will not affect the walking control accuracy. It is one of the commonly used accessories for industrial machinery.

[0003] On the existing four-axis turntable, one end of the workpiece is generally fixed by a clamping claw. When the workpiece is long, it is only clamped and fixed at one end, which is not firm enough and will affect subsequent processing. At the same time, the existing clamping device cannot clamp the end of the special-shaped workpiece, and its applicability is not high. Utility Model Content

[0004] The utility model aims to provide a four-axis turntable clamping device, which can clamp longer workpieces and special-shaped workpieces and has the advantages of simple structure and good clamping effect.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a four-axis turntable clamping device, including a mounting base, a fixed base fixedly connected to the mounting base, a connecting plate arranged on the fixed base, a cushion block fixedly connected to the center of the connecting plate, a plurality of clamping members evenly arranged on the circumferential upper edge of the connecting plate, the clamping members are slidably connected to the connecting plate, a plurality of driving disks are slidably connected to the outer walls of the plurality of clamping members, a driving member for driving the driving disk to rotate and control the plurality of clamping members to synchronously approach or move away from the cushion block is arranged on the mounting base, a clamping plate is slidably connected to the mounting base, the clamping plate is located directly above the cushion block, and a driving assembly for controlling the reciprocating motion of the clamping plate in the vertical direction is arranged on the mounting base.

[0006] By adopting the above technical solution, one end of the workpiece is placed on the pad, and the driving component controls multiple clamping components to approach the pad, so as to clamp and fix one end of the workpiece. The driving component controls the clamping plate to descend, so as to clamp and fix the end of the long workpiece away from the clamping component, so that the workpiece can be firmly fixed and clamped, which is convenient for subsequent processing.

[0007] The utility model is further configured as follows: a plurality of arc grooves are provided in the driving disk, the number of the arc grooves is the same as the number of the clamping members, the plurality of arc grooves form a cavity, the cavity wall of the cavity is in contact with the clamping member and the cavity and the clamping member are slidably connected.

[0008] By adopting the above technical solution, when the driving disk rotates, the clamping member contacts the arc groove, and at this time, the clamping member is driven to move toward the pad, and multiple arc grooves control multiple clamping members to move synchronously, thereby completing the clamping and fixing of the end of the workpiece.

[0009] The utility model is further configured as follows: the connecting plate is fixedly connected with a plurality of sector blocks along the circumferential direction, the center of the sector block coincides with the center of the connecting plate, a slideway is provided between two adjacent sector blocks, the clamping piece is embedded in the slideway, and the clamping piece is slidably connected to the slideway.

[0010] By adopting the above technical solution, the clamping member contacts the arc groove, and when the driving disk rotates, the clamping member only moves along the slideway direction under the restriction of the slideway, thereby ensuring the clamping effect of the clamping member on the workpiece.

[0011] The utility model is further configured as follows: a limit block is arranged on the upper surface of the sector block, the limit block is located at the arc of the sector block, the limit block is arc-shaped, a limit cavity is formed between several of the limit blocks, the drive disk is embedded in the limit cavity and the drive disk is slidably connected to the limit block, a mounting plate is fixedly connected to the top of several of the limit blocks, a circular hole is opened in the mounting plate, and the clamping piece is located in the hole.

[0012] By adopting the above technical solution, a plurality of limit blocks form a limit cavity, the drive disk is embedded in the limit cavity and slidably connected with the limit cavity, so that the drive disk is controlled to rotate only around the center of the circle.

[0013] The utility model is further configured as follows: a driving rod along the radial direction is fixedly arranged on the outer wall of the driving disk, the driving rod is located on the fan-shaped block, and the driving rod is slidably connected to the output end of the driving member.

[0014] By adopting the above technical solution, the driving member controls the driving rod to drive the driving disk to rotate, thereby controlling the synchronous movement of the clamping member.

[0015] The utility model is further configured as follows: the driving member is a cylinder or an electric push rod, a strip groove is provided on the driving rod, a connecting member is fixedly connected to the output end of the driving member, the connecting member is embedded in the strip groove and the connecting member is slidably connected to the strip groove.

[0016] By adopting the above technical solution, the driving member controls the driving rod through the connecting member to drive the driving disk to rotate, and the design of the strip groove enables the driving member to smoothly push the driving rod to drive the driving disk to rotate.

[0017] The utility model is further configured as follows: a first spring is fixedly connected between the clamping member and the cushion block.

[0018] By adopting the above technical solution, the design of the first spring can control the clamping member to always be in contact with the arc groove on the driving disk, thereby ensuring that the clamping member can release and clamp the workpiece.

[0019] The utility model is further configured as follows: a plurality of support rods are slidably connected to the clamping member, the support rods are horizontally arranged, one end of the support rod away from the clamping member is fixedly connected to a clamping block, the clamping block is close to the cushion block, a second spring is sleeved on the support rod, one end of the second spring is connected to the clamping member, and the other end is connected to the clamping block.

[0020] By adopting the above technical solution, when the clamping member approaches the workpiece to clamp the workpiece under the action of the driving disk, the second spring can control the clamping block to always contact the edge of the workpiece, thereby clamping and fixing the special-shaped workpiece.

[0021] The utility model is further configured as follows: the driving assembly includes a "door"-shaped support frame installed on a fixed base, a clamping plate is slidably connected to the support frame, a vertical screw is fixedly connected to the top center of the clamping plate, the screw passes through the support frame, a driving ring is rotatably connected to the support frame, the screw passes through the driving ring, and the driving ring is threadedly connected to the screw.

[0022] By adopting the above technical solution, the drive ring is rotated to control the screw rod to drive the clamping plate to move up and down, thereby controlling the clamping plate to clamp and fix the end of the workpiece away from the clamping piece.

[0023] The utility model is further configured as follows: a plurality of mounting holes are provided on the mounting base.

[0024] By adopting the above technical solution, the mounting base is fixed on the four-axis turntable through the mounting holes.

[0025] The beneficial effects of the utility model are:

[0026] 1. The utility model realizes the effect of multiple clamping parts synchronously clamping and fixing the workpiece by designing the driving disk and the clamping parts, and the clamping effect is good.

[0027] 2. The clamping plate designed in the utility model can firmly clamp a longer workpiece through the cooperation of the clamping parts, thereby preventing the longer workpiece from falling due to unstable clamping during the processing.

[0028] 3. The utility model is provided with a support rod, a clamping block and a second spring on the clamping member, which can realize the clamping of special-shaped workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the structure of the utility model.

[0031] Figure 2 It is an exploded view of the structure of the utility model.

[0032] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure in the middle.

[0033] Figure 4 yes Figure 2 Enlarged schematic diagram of the structure at point C in the middle.

[0034] Figure 5 It is a top view schematic diagram of the utility model.

[0035] Figure 6 yes Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0036] In the figure, 1, mounting base; 2, fixing seat; 3, connecting plate; 4, cushion block; 5, clamping member; 6, driving disk; 61, arc groove; 62, cavity; 7, driving member; 8, fan-shaped block; 9, slideway; 10, limit block; 11, mounting plate; 12, driving rod; 13, strip groove; 14, connecting member; 15, first spring; 16, supporting rod; 17, clamping block; 18, second spring; 19, clamping plate; 20, driving assembly; 201, supporting frame; 202, screw rod; 203, driving ring; 21, mounting hole. DETAILED DESCRIPTION

[0037] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Example: See Figure 1-6A four-axis turntable clamping device includes a mounting base 1, a fixing base 2 is fixedly connected to the mounting base 1, a connecting plate 3 is arranged on the fixing base 2, a cushion block 4 is fixedly connected to the center of the connecting plate 3, a plurality of clamping members 5 are evenly arranged along the circumferential direction on the connecting plate 3, the clamping members 5 are slidably connected to the connecting plate 3, a driving disk 6 is slidably connected to the outer wall of the plurality of clamping members 5, a driving member 7 is arranged on the mounting base 1 to drive the driving disk 6 to rotate and control the plurality of clamping members 5 to synchronously approach or move away from the cushion block 4, and the mounting base 1 A clamping plate 19 is slidably connected and is located directly above the pad 4. A driving component 20 for controlling the reciprocating movement of the clamping plate 19 in the vertical direction is provided on the mounting base 1. One end of the workpiece is placed on the pad 4, and the driving component 7 controls multiple clamping components 5 to approach the pad 4, thereby clamping and fixing one end of the workpiece. The driving component 20 controls the clamping plate 19 to descend, thereby clamping and fixing the end of the long workpiece away from the clamping component 5, so that the workpiece can be firmly clamped, which is convenient for subsequent processing.

[0039] Furthermore, a plurality of arc grooves 61 are provided in the driving disk 6, and the number of the arc grooves 61 is the same as the number of the clamping members 5. The plurality of arc grooves 61 form a cavity 62, and the cavity wall of the cavity 62 is in contact with the clamping member 5 and the cavity 62 is slidably connected with the clamping member 5. When the driving disk 6 rotates, the clamping member 5 is in contact with the arc groove 61. At this time, the clamping member 5 is driven to move toward the pad 4, and the plurality of arc grooves 61 control the synchronous movement of the plurality of clamping members 5, thereby completing the clamping and fixation of the end of the workpiece.

[0040] Furthermore, the connecting plate 3 is fixedly connected with a plurality of sector blocks 8 along the circumferential direction, the center of the sector block 8 coincides with the center of the connecting plate 3, a slideway 9 is provided between two adjacent sector blocks 8, the clamping member 5 is embedded in the slideway 9, and the clamping member 5 is slidingly connected to the slideway 9, the clamping member 5 is in contact with the arc groove 61, and when the driving disk 6 rotates, the clamping member 5 only moves along the direction of the slideway 9 under the restriction of the slideway 9, thereby ensuring the clamping effect of the clamping member 5 on the workpiece.

[0041] Furthermore, a limit block 10 is provided on the upper surface of the sector block 8, and the limit block 10 is located at the arc of the sector block 8. The limit block 10 is arc-shaped, and a limit cavity is formed between several limit blocks 10. The drive disk 6 is embedded in the limit cavity and the drive disk 6 is slidably connected to the limit block 10. A mounting plate 11 is fixedly connected to the top of several limit blocks 10, and a circular hole is opened in the mounting plate 11. The clamping piece 5 is located in the hole, and multiple limit blocks 10 form a limit cavity. The drive disk 6 is embedded in the limit cavity and is slidably connected to the limit cavity, thereby controlling the drive disk 6 to rotate only around the center of the circle.

[0042] Furthermore, a driving rod 12 is fixedly provided along the radial direction on the outer wall of the driving disk 6. The driving rod 12 is located on the fan-shaped block 8. The driving rod 12 is slidingly connected to the output end of the driving member 7. The driving member 7 controls the driving rod 12 to drive the driving disk 6 to rotate, thereby controlling the synchronous movement of the clamping member 5.

[0043] Furthermore, the driving member 7 is a cylinder or an electric push rod, a strip groove 13 is provided on the driving rod 12, and a connecting member 14 is fixedly connected to the output end of the driving member 7. The connecting member 14 is embedded in the strip groove 13 and the connecting member 14 is slidably connected to the strip groove 13. The driving member 7 controls the driving rod 12 to drive the driving disk 6 to rotate through the connecting member 14. The design of the strip groove 13 enables the driving member 7 to smoothly push the driving rod 12 to drive the driving disk 6 to rotate.

[0044] Furthermore, a first spring 15 is fixedly connected between the clamping member 5 and the cushion block 4. The design of the first spring 15 can control the clamping member 5 to always contact with the arc groove 61 on the driving disk 6, ensuring that the clamping member 5 can release and clamp the workpiece.

[0045] Furthermore, the clamping member 5 is slidably connected to a plurality of support rods 16, which are horizontally arranged. One end of the support rod 16 away from the clamping member 5 is fixedly connected to a clamping block 17, which is close to the cushion block 4. A second spring 18 is sleeved on the support rod 16, and one end of the second spring 18 is connected to the clamping member 5, and the other end is connected to the clamping block 17. When the clamping member 5 approaches the workpiece to clamp the workpiece under the action of the driving disk 6, the second spring 18 can control the clamping block 17 to always contact the edge of the workpiece, thereby achieving the clamping and fixation of the special-shaped workpiece.

[0046] Furthermore, the driving assembly 20 includes a "door"-shaped support frame 201 installed on a fixed base, a clamping plate 19 is slidably connected to the support frame 201, a vertical screw 202 is fixedly connected to the top center of the clamping plate 19, the screw 202 penetrates the support frame 201, a driving ring 203 is rotatably connected to the support frame 201, the screw 202 penetrates the driving ring 203, and the driving ring 203 is threadedly connected to the screw 202, and the driving ring 203 is rotated to control the screw 202 to drive the clamping plate 19 to move up and down, thereby controlling the clamping plate 19 to clamp and fix the end of the workpiece away from the clamping member 5.

[0047] Furthermore, a plurality of mounting holes 21 are formed on the mounting base 1 , and the mounting base 1 is fixed on the four-axis turntable through the mounting holes 21 .

[0048] Working principle of this utility model:

[0049] One end of the workpiece is placed on the pad 4, and the driving member 7 controls the driving rod 12 through the connecting member 14 to drive the driving disk 6 to rotate. The arc groove 61 in the driving disk 6 controls several clamping members 5 to approach the pad 4 synchronously, thereby clamping one end of the workpiece, and then the driving ring 203 is rotated, and the screw 202 controls the clamping plate 19 to descend, so as to clamp and fix the other end of the workpiece.

Claims

1. A four-axis turntable clamping device, comprising a mounting base (1), characterized in that: The mounting base (1) is fixedly connected to a fixing base (2), a connecting plate (3) is provided on the fixing base (2), a cushion block (4) is fixedly connected to the center of the connecting plate (3), a plurality of clamping members (5) are evenly arranged along the circumference of the connecting plate (3), the clamping members (5) are slidably connected to the connecting plate (3), a plurality of driving disks (6) are slidably connected to the outer walls of the clamping members (5), a driving member (7) is provided on the mounting base (1) for driving the driving disk (6) to rotate and control the plurality of clamping members (5) to synchronously approach or move away from the cushion block (4), a pressing plate (19) is slidably connected to the mounting base (1), the pressing plate (19) is located directly above the cushion block (4), and a driving assembly (20) is provided on the mounting base (1) for controlling the reciprocating motion of the pressing plate (19) in the vertical direction.

2. The four-axis turntable clamping device according to claim 1, characterized in that: The driving disk (6) is provided with a plurality of arcuate grooves (61), the number of the arcuate grooves (61) being the same as the number of the clamping members (5), and the plurality of arcuate grooves (61) forming a cavity (62), the cavity wall of the cavity (62) being in contact with the clamping member (5), and the cavity (62) and the clamping member (5) being slidably connected.

3. The four-axis turntable clamping device according to claim 2, characterized in that: The connecting plate (3) is fixedly connected to a plurality of sector blocks (8) along the circumferential direction, the center of the sector block (8) coincides with the center of the connecting plate (3), a slideway (9) is provided between two adjacent sector blocks (8), the clamping member (5) is embedded in the slideway (9), and the clamping member (5) is slidably connected to the slideway (9).

4. The four-axis turntable clamping device according to claim 3 is characterized in that: A limiting block (10) is arranged on the upper surface of a plurality of adjacent sector blocks (8), the limiting block (10) is located at the arc of the sector block (8), the limiting block (10) is arc-shaped, a limiting cavity is formed between the plurality of limiting blocks (10), the driving disk (6) is embedded in the limiting cavity and the driving disk (6) is slidably connected to the limiting block (10), a mounting plate (11) is fixedly connected to the top of the plurality of limiting blocks (10), a circular hole is opened in the mounting plate (11), and the clamping member (5) is located in the hole.

5. The four-axis turntable clamping device according to claim 4, characterized in that: A driving rod (12) is fixedly arranged on the outer wall of the driving disk (6) along the radial direction. The driving rod (12) is located on the sector block (8). The driving rod (12) is slidably connected to the output end of the driving member (7).

6. The four-axis turntable clamping device according to claim 5, characterized in that: The driving member (7) is a cylinder or an electric push rod, the driving rod (12) is provided with a strip groove (13), the output end of the driving member (7) is fixedly connected with a connecting member (14), the connecting member (14) is embedded in the strip groove (13) and the connecting member (14) is slidably connected to the strip groove (13).

7. The four-axis turntable clamping device according to claim 1, characterized in that: A first spring (15) is fixedly connected between the clamping member (5) and the cushion block (4).

8. The four-axis turntable clamping device according to claim 7, characterized in that: A plurality of support rods (16) are slidably connected to the clamping member (5), the support rods (16) are arranged horizontally, one end of the support rod (16) away from the clamping member (5) is fixedly connected to a clamping block (17), the clamping block (17) is close to the cushion block (4), and a second spring (18) is sleeved on the support rod (16), one end of the second spring (18) is connected to the clamping member (5), and the other end is connected to the clamping block (17).

9. The four-axis turntable clamping device according to claim 1, characterized in that: The driving assembly (20) comprises a "door"-shaped support frame (201) mounted on a fixed base, a clamping plate (19) being slidably connected to the support frame (201), a vertical screw rod (202) being fixedly connected to the top center of the clamping plate (19), the screw rod (202) passing through the support frame (201), a driving ring (203) being rotatably connected to the support frame (201), the screw rod (202) passing through the driving ring (203), and the driving ring (203) being threadedly connected to the screw rod (202).

10. The four-axis turntable clamping device according to claim 1, characterized in that: The mounting base (1) is provided with a plurality of mounting holes (21).

Images