CN218461983U

CN218461983U - Workpiece clamping device

Info

Publication number: CN218461983U
Application number: CN202222782613.8U
Authority: CN
Inventors: 赵金龙; 高恩宇; 周鑫
Original assignee: Beijing MinoSpace Technology Co Ltd; Anhui Minospace Technology Co Ltd; Beijing Guoyu Xingkong Technology Co Ltd; Hainan Minospace Technology Co Ltd; Shaanxi Guoyu Space Technology Co Ltd
Current assignee: Beijing MinoSpace Technology Co Ltd; Anhui Minospace Technology Co Ltd; Beijing Guoyu Xingkong Technology Co Ltd; Hainan Minospace Technology Co Ltd; Shaanxi Guoyu Space Technology Co Ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-02-10
Anticipated expiration: 2032-10-21

Abstract

The utility model relates to the technical field of clamping devices, in particular to a workpiece clamping device, which comprises an installation platform; the lifting assembly is arranged on the mounting table; the clamping frame is arranged on the lifting assembly and provided with a clamping opening, and the lifting assembly can drive the clamping frame to lift relative to the mounting table; the clamping assembly is arranged on the clamping frame and is positioned at the clamping opening, the clamping assembly is used for clamping a workpiece, and the clamping assembly can rotate relative to the clamping frame; the butt component is arranged on the clamping frame along the extending direction of the clamping frame and is positioned in the clamping opening, and the butt component is used for butting the workpiece. The utility model discloses when can stabilizing the clamping to axle type part, be convenient for measure.

Description

Workpiece clamping device

Technical Field

The utility model relates to a clamping device technical field especially relates to a work piece clamping device.

Background

The mechanical designer needs to adjust the size and the precision of the machined workpiece, finally determines the machining process card, needs to adjust and feed back each workpiece for multiple times during the machining process, the existing design table is basically not provided with a workpiece holding structure, the designer can only adopt hands or place the existing design table on a workbench for inspection, the inspection is inconvenient, small defects are easily omitted, and the measurement of the size is not facilitated. Especially to axle type part, present anchor clamps are mostly triangle claw dish, can press from both sides the tip of work piece, will influence the measurement of axle work piece length like this, and the work piece can not move about again after the clamping moreover, leads to measurement inconvenient, wastes time and energy.

Therefore, a work holding apparatus is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a work piece clamping device when can stabilizing the clamping to axle type part, is convenient for measure.

To achieve the purpose, the utility model adopts the following technical proposal:

a workpiece holding device comprising:

an installation table;

the lifting assembly is arranged on the mounting table;

the clamping frame is arranged on the lifting assembly, the clamping frame is provided with a clamping opening, and the lifting assembly can drive the clamping frame to lift relative to the mounting table;

the clamping assembly is arranged on the clamping frame and positioned at the clamping opening, the clamping assembly is used for clamping a workpiece, and the clamping assembly can rotate relative to the clamping frame;

the butt component is arranged on the clamping frame along the extending direction of the clamping frame and is positioned in the clamping opening, and the butt component is used for butting a workpiece.

Further, lifting unit includes barrel and support column, the barrel sets up on the mount table, the support column wears to establish in the barrel, and one end is relative the barrel stretches out, the holding frame sets up the support column is relative the barrel stretches out one end.

Furthermore, the lifting assembly further comprises an elastic buffer assembly, and the elastic buffer assembly is arranged at the insertion position of the cylinder body and the supporting column and used for buffering the movement of the supporting column relative to the cylinder body.

Further, the elastic buffering subassembly includes go-between and joint ring, the outer peripheral face of barrel is fitted with a contraceptive ring and is equipped with first retainer ring, the go-between cover is established on the barrel, and supports and be in on the first retainer ring, joint ring cover is established on the barrel, and with the lower terminal surface of go-between is connected, the joint ring with the go-between and first retainer ring encloses to establish and forms the installation ring chamber, be provided with the buffering ring in the installation ring chamber, the support column with go-between threaded connection.

Further, a second positioning ring is arranged on the connecting ring along the circumferential direction of the connecting ring, and the clamping ring is connected with the second positioning ring through a fixing piece.

Further, the clamping ring comprises a first half ring part, a second half ring part and a locking part, and the first half ring part and the second half ring part are connected through the locking part to form the clamping ring.

Further, the both ends of first semi-ring portion are provided with first joint portion, the both ends of second semi-ring portion are provided with second joint portion, and locking portion joint is being located with one side first joint portion with on the second joint portion.

Further, the centre gripping subassembly is provided with two sets ofly, two sets of the centre gripping subassembly sets up relatively, the centre gripping subassembly includes first adjusting screw, first adjusting screw spiro union is in on the holding frame, just first end of first adjusting screw is arranged in the centre gripping mouth, the first end activity of first adjusting screw is provided with presss from both sides tight piece.

Furthermore, one end, departing from the first adjusting screw, of the clamping block is an arc-shaped surface.

Further, the butt joint subassembly includes second adjusting screw and top, second adjusting screw with the holding frame threaded connection, just the first end of second adjusting screw is located in the centre gripping mouth, the top sets up on the first end of second adjusting screw.

The utility model has the advantages that:

the utility model provides a work piece clamping device is provided with lifting unit on the mount table, the last holding frame that is provided with of lifting unit, the holding frame has the centre gripping mouth, be provided with centre gripping subassembly and butt subassembly in centre gripping mouth department, carry out the centre gripping to the work piece through the centre gripping subassembly, utilize the butt subassembly to carry out the butt to the work piece to effectively fix a position the work piece, utilize lifting unit can adjust the height of centre gripping frame, adjust centre gripping subassembly and butt subassembly simultaneously, thereby adapt to different work pieces. And the clamping assembly can rotate relative to the clamping frame, and after the clamping assembly rotates in place, the abutting assembly is abutted to the workpiece, so that positioning is completed. Through the mode, the measuring angle of the shaft part can be adjusted as required while the shaft part is stably clamped, so that the measurement is convenient.

Drawings

Fig. 1 is a schematic view of a workpiece holding apparatus of the present invention;

FIG. 2 is a partial cross-sectional view of a barrel and a resilient cushioning element of a workpiece holding device according to the present invention;

FIG. 3 is a schematic view of a cylinder and an elastic buffer assembly of a workpiece clamping device according to the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

In the figure:

1. an installation table; 2. a lifting assembly; 21. a barrel; 211. a first positioning ring; 22. a support pillar; 3. a clamping frame; 4. a clamping assembly; 41. a first adjusting screw; 42. a clamping block; 43. a first turntable; 5. an abutment assembly; 51. a second adjusting screw; 52. ejecting the head; 53. a second turntable; 6. an elastic buffer component; 61. a connecting ring; 611. a second positioning ring; 62. a snap ring; 621. a first semi-ring portion; 622. a second half ring portion; 623. a second clamping part; 624. a first clamping part; 63. a locking portion; 7. a buffer ring; 8. and a fixing member.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection or a detachable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

When measuring the work piece, in order to be convenient for measure when can stablizing the clamping to axle type part, as shown in fig. 1-4, the utility model provides a work piece clamping device. The workpiece clamping device comprises an installation table 1, a lifting assembly 2, a clamping frame 3, a clamping assembly 4 and an abutting assembly 5.

Wherein, the lifting component 2 is arranged on the mounting table 1; the clamping frame 3 is fixedly arranged on the lifting assembly 2, the clamping frame 3 is provided with a clamping opening, and the lifting assembly 2 can drive the clamping frame 3 to lift relative to the mounting table 1; the clamping assembly 4 is arranged on the clamping frame 3 and is positioned at the clamping opening, the clamping assembly 4 is used for clamping a workpiece, and the clamping assembly 4 can rotate relative to the clamping frame 3; the abutting assembly 5 is arranged on the clamping frame 3 along the extending direction of the clamping frame 3, the abutting assembly 5 is located in the clamping opening, and the abutting assembly 5 is used for abutting the workpiece.

Carry out the centre gripping to the work piece through centre gripping subassembly 4, utilize butt subassembly 5 to carry out the butt to the work piece to effectively fix a position the work piece, utilize lifting unit 2 can adjust the height of clamping frame 3, adjust centre gripping subassembly 4 and butt subassembly 5 simultaneously, thereby adapt to different work pieces. The clamp assembly 4 is rotatable relative to the clamp holder 3, and after the rotation in place, the abutment assembly 5 abuts against the workpiece, thereby completing the positioning. Through the mode, the measuring angle of the shaft part can be adjusted as required while the shaft part is stably clamped, so that the measurement is convenient.

Further, lifting unit 2 includes barrel 21 and support column 22, and barrel 21 is fixed to be set up on mount table 1, and support column 22 wears to establish in barrel 21, and the relative barrel 21 of one end of support column 22 stretches out, and holding frame 3 is fixed to be set up on the relative barrel 21 of support column 22 stretches out one end. The height of the supporting column 22 can be adjusted by adjusting the extending height of the supporting column 22 relative to the cylinder 21, so that the height of the clamping frame 3 is adjusted, and clamping of workpieces of different sizes can be met.

Further, the lifting assembly 2 further comprises an elastic buffer assembly 6, and the elastic buffer assembly 6 is arranged at the insertion joint of the cylinder 21 and the supporting column 22 and is used for buffering the movement of the supporting column 22 relative to the cylinder 21. Through setting up elastic buffer assembly 6, can cushion the relative motion between barrel 21 and the support column 22 to guarantee that height-adjusting goes on smoothly.

Specifically, the elastic buffer assembly 6 includes a connection ring 61 and a clamping ring 62, a first positioning ring 211 is disposed on the outer peripheral surface of the cylinder 21, the connection ring 61 is sleeved on the cylinder 21 and supported on the first positioning ring 211, the clamping ring 62 is sleeved on the cylinder 21 and connected to the lower end surface of the connection ring 61, the clamping ring 62, the connection ring 61 and the first positioning ring 211 are surrounded to form a mounting ring cavity, a buffer ring 7 is disposed in the mounting ring cavity, and the support column 22 is in threaded connection with the connection ring 61. When the workpiece is adjusted, the clamping frame 3 may be driven to move upwards, so as to drive the supporting column 22 to impact upwards, and at this time, the connecting ring 61 generates an upward impact, and the impact is converted into a force for extruding the buffer ring 7, so that the buffer protection effect is achieved.

Further, a second positioning ring 611 is fixedly arranged on the connecting ring 61 along the circumferential direction of the connecting ring 61, and the snap ring 62 is connected with the second positioning ring 611 through the fixing member 8. Specifically, in this embodiment, a clamping interface is formed on the second positioning ring 611, the fixing member 8 is a clamping pin, the fixing member 8 is disposed on the clamping ring 62, and the head of the fixing member 8 is clamped at the clamping interface, so as to be fixed on the second positioning ring 611. In order to improve the connection strength between the clamping ring 62 and the second positioning ring 611, a plurality of fixing members 8 are arranged at intervals along the circumferential direction of the clamping ring 62, a plurality of clamping interfaces are clamped on the second positioning ring 611, and the clamping interfaces and the fixing members 8 are arranged in a one-to-one correspondence manner.

Further, the snap ring 62 comprises a first half ring portion 621, a second half ring portion 622 and a locking portion 63, wherein the first half ring portion 621 and the second half ring portion 622 are connected by the locking portion 63 to form the snap ring 62. Through setting up joint ring 62 into two semi-ring portions, the joint ring 62 cover of being convenient for is established on barrel 21, then connects through locking portion 63, forms complete joint ring 62.

Further, the two ends of the first half ring portion 621 are fixedly provided with a first clamping portion 624, the two ends of the second half ring portion 622 are fixedly provided with a second clamping portion 623, and the locking portion 63 is clamped on the first clamping portion 624 and the second clamping portion 623 which are located on the same side. In this way, the assembly of the first half ring portion 621 and the second half ring portion 622 is facilitated.

Further, the clamping assemblies 4 are provided with two groups, the two groups of clamping assemblies 4 are arranged oppositely, each clamping assembly 4 comprises a first adjusting screw 41, the first adjusting screw 41 is in threaded connection with the clamping frame 3, the first end of each first adjusting screw 41 is located in the clamping opening, and a clamping block 42 is movably arranged at the first end of each adjusting screw. In order to adjust the first adjusting screw 41 conveniently, a first rotating disc 43 is arranged on the first adjusting screw 41, and the first adjusting screw 41 can be driven to rotate by rotating the first rotating disc 43, so that the length of the first adjusting screw 41 in the clamping opening is adjusted, and clamping of workpieces with different sizes is met. By movably arranging the clamping block 42 on the first adjusting screw rod 41, the angle of the workpiece can be conveniently adjusted according to requirements, so that the measurement is facilitated.

Further, the end of the clamping block 42 facing away from the first adjusting screw 41 is an arc-shaped surface. Through setting up the arcwall face, be convenient for carry out the centre gripping to axle type part, guarantee the intensity of centre gripping moreover.

Further, the abutment assembly 5 comprises a second adjusting screw 51 and a plug 52, the second adjusting screw 51 is in threaded connection with the clamping frame 3, and a first end of the second adjusting screw 51 is located in the clamping opening, and the plug 52 is arranged on the first end of the second adjusting screw 51. Specifically, the diameter of the plug 52 is much smaller than the diameter of the workpiece, so as to ensure that most of the end surface of the workpiece is not shielded, thereby facilitating measurement. The second turntable 53 is arranged on the second adjusting screw 51, and the second adjusting screw 51 can be driven to rotate by rotating the second turntable 53, so that the length of the second adjusting screw 51 in the clamping opening is adjusted, and the second adjusting screw is suitable for abutting of workpieces with different sizes.

Through the centre gripping subassembly 4 that adopts both sides to press from both sides tightly to and the butt subassembly 5 of tip butt, with the measuring workpiece that can be very convenient behind the centre gripping of axle type work piece, when examining the work piece, can remove butt subassembly 5 (only adopt the clamping mode that both sides pressed from both sides), the work piece can rotate, and the user can be the arbitrary angle, the adjustment work piece of optional position, is convenient for observe and measure.

It is to be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Workpiece holding device, characterized by, includes:

an installation table (1);

the lifting assembly (2), the lifting assembly (2) is arranged on the mounting table (1);

the clamping frame (3) is arranged on the lifting assembly (2), the clamping frame (3) is provided with a clamping opening, and the lifting assembly (2) can drive the clamping frame (3) to lift relative to the mounting table (1);

the clamping assembly (4) is arranged on the clamping frame (3) and is positioned at the clamping opening, the clamping assembly (4) is used for clamping a workpiece, and the clamping assembly (4) can rotate relative to the clamping frame (3);

the butt joint component (5), the butt joint component (5) is followed the extending direction of clamping frame (3) sets up on the clamping frame (3), just the butt joint component (5) are located in the centre gripping mouth, butt joint component (5) are used for carrying out the butt to the work piece.

2. The workpiece holding device according to claim 1, characterized in that the lifting assembly (2) comprises a cylinder (21) and a supporting column (22), the cylinder (21) is arranged on the mounting table (1), the supporting column (22) is arranged in the cylinder (21) in a penetrating way, one end of the supporting column protrudes relative to the cylinder (21), and the holding frame (3) is arranged on one end of the supporting column (22) protruding relative to the cylinder (21).

3. The workpiece holding device of claim 2, wherein the lifting assembly (2) further comprises an elastic buffer assembly (6), and the elastic buffer assembly (6) is arranged at the joint of the cylinder (21) and the supporting column (22) and is used for buffering the movement of the supporting column (22) relative to the cylinder (21).

4. The workpiece clamping device according to claim 3, wherein the elastic buffer assembly (6) comprises a connecting ring (61) and a clamping ring (62), a first positioning ring (211) is annularly arranged on the outer peripheral surface of the cylinder body (21), the connecting ring (61) is sleeved on the cylinder body (21) and supported on the first positioning ring (211), the clamping ring (62) is sleeved on the cylinder body (21) and connected with the lower end face of the connecting ring (61), the clamping ring (62) is surrounded by the connecting ring (61) and the first positioning ring (211) to form a mounting ring cavity, a buffer ring (7) is arranged in the mounting ring cavity, and the supporting column (22) is in threaded connection with the connecting ring (61).

5. Workpiece holding device according to claim 4, characterised in that a second positioning ring (611) is arranged on the connecting ring (61) in the circumferential direction of the connecting ring (61), the clamping ring (62) being connected to the second positioning ring (611) by means of a fixing element (8).

6. The workpiece holding device according to claim 4, characterized in that the snap ring (62) comprises a first half ring part (621), a second half ring part (622), and a locking part (63), the first half ring part (621) and the second half ring part (622) being connected by the locking part (63) to form the snap ring (62).

7. The workpiece holding device according to claim 6, wherein both ends of the first half ring portion (621) are provided with first engaging portions (624), both ends of the second half ring portion (622) are provided with second engaging portions (623), and the locking portions (63) are engaged with the first engaging portions (624) and the second engaging portions (623) on the same side.

8. The workpiece clamping device as recited in claim 1, characterized in that two sets of the clamping assemblies (4) are provided, two sets of the clamping assemblies (4) are oppositely arranged, the clamping assemblies (4) comprise first adjusting screws (41), the first adjusting screws (41) are screwed on the clamping frame (3), a first end of the first adjusting screws (41) is located in the clamping opening, and a clamping block (42) is movably arranged at a first end of the first adjusting screws (41).

9. Workpiece clamping device according to claim 8, characterised in that the end of the clamping block (42) facing away from the first adjusting screw (41) is an arc-shaped surface.

10. Workpiece clamping device according to claim 1, characterized in that the abutment assembly (5) comprises a second adjusting screw (51) and a head (52), the second adjusting screw (51) being in threaded connection with the clamping frame (3) and a first end of the second adjusting screw (51) being located in the clamping mouth, the head (52) being arranged on the first end of the second adjusting screw (51).