CN209303967U - Hold-down mechanism and fixture suitable for the workpiece received in being open - Google Patents
Hold-down mechanism and fixture suitable for the workpiece received in being open Download PDFInfo
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- CN209303967U CN209303967U CN201822101895.4U CN201822101895U CN209303967U CN 209303967 U CN209303967 U CN 209303967U CN 201822101895 U CN201822101895 U CN 201822101895U CN 209303967 U CN209303967 U CN 209303967U
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- briquetting
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- down mechanism
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Abstract
The utility model discloses a kind of suitable for the hold-down mechanism for the workpiece received in being open, including fixed tumble cylinder, the piston rod of the tumble cylinder is connected with flip-arm, scissor-type hold-down mechanism is equipped on the flip-arm, it includes the pushing tow cylinder being fixed on flip-arm, the piston rod free end of the pushing tow cylinder is towards the free end of flip-arm, the piston rod free end of the pushing tow cylinder is hinged with scissor, the piston rod of pushing tow cylinder is flexible to drive two scissors rods to open or close up, and is respectively provided with an outside briquetting in the free end of two scissors rods.Using the utility model has the beneficial effects that being designed by cleverly fixture, be both able to achieve workpiece of the split mouth with negative angle stablizes compression, in turn avoids the shortcomings that traditional method of clamping scratches workpiece surface.
Description
Technical field
The utility model relates to welding tooling equipment, and in particular to a kind of suitable for the hold-down mechanism for the workpiece received in being open
And fixture.
Background technique
After the preliminary punch forming of sheet metal component, also usually needs to be welded further processing, need when being welded to workpiece wall
Stable positioning clamping is just avoided that deformation caused by welding stress, guarantees the quality of workpiece size and welding processing.For thin
Wall-shaped and the workpiece for the necking that is open with negative opening angle, however the selection of fixture has difficulties.Conventional clamp uses cylinder
Activation lever formula press arm is clamped in a manner of holding out against or compressing, but for the workpiece for the necking that is open, if press arm is to turn
Flowing mode carries out the compression of horizontal direction, then is difficult to enter in necking or is difficult to not open.As shown in Figure 1, if in press arm
Free end setting towards press arm rotational plane outside briquetting, then open when press arm skidded off along workpiece lumen wall,
The sliding of briquetting causes scratch even to damage deformation.Therefore, it needs to rationally design novel clamp for this kind of workpiece.
Utility model content
In order to solve the above technical problems, one of the purpose of this utility model is to provide a kind of work suitable for receiving in being open
The hold-down mechanism of part.
Technical solution is as follows:
A kind of hold-down mechanism suitable for the workpiece of receipts in being open, including fixed tumble cylinder, the work of the tumble cylinder
Stopper rod is connected with flip-arm, it is critical that being equipped with scissor-type hold-down mechanism on the flip-arm；
The scissor-type hold-down mechanism includes top-pushing mechanism, which is arranged on the flip-arm, the pusher
The yoke frame of structure is stretched to the free end of flip-arm top, and the yoke frame is hinged with scissor, the yoke frame ejection or retraction
To drive the scissor to open or close up, the briquetting outside there are two difference is set in the free end of the scissor.
Using the above design, keeps scissor to close up and then enter workpiece lumen with flip-arm, scissor is opened, and scissors rod is free
The briquetting at end respectively outward presses the cavity wall of workpiece, then first closes up scissor at the end of press, then moves back with flip-arm
Workpiece lumen out had not only been able to achieve stablizing for the workpiece of split mouth negative angle and had compressed, but also prevented plowing from workpiece surface.
As optimal technical scheme, above-mentioned top-pushing mechanism is pushing tow cylinder, and the cylinder body of the pushing tow cylinder is fixed on described turn over
On pivoted arm, the piston rod of the pushing tow cylinder forms the yoke frame, and the free end of the piston rod of the pushing tow cylinder is turned over described in
The free end of pivoted arm, the piston rod free end of the pushing tow cylinder are hinged with the scissor.
Using the above design, pushing tow cylinder is convenient for manipulation.
As optimal technical scheme, above-mentioned scissor includes two scissors rods, is respectively equipped with bending on two scissors rods
Strip-shaped hole, the bending directions of two strip-shaped holes is on the contrary, be equipped with the same swivel pin in two strip-shaped holes, the hinge
Outbound is installed on the flip-arm；
The tail end of two scissors rods is hinged with the piston rod free end of the pushing tow cylinder respectively, cuts described in two
The free end of fork arm is respectively provided with an outside briquetting.
Using the above design, since swivel pin is fixed, when pushing tow cylinder top stretches or bounces back, due to the strip-shaped hole on scissors rod
Pin limit is hinged to occur mobile and rotate, easily realizes separating and closing up for scissor.
As optimal technical scheme, two scissors rods are the first scissors rod and the second scissor of mounted on top setting
Bar, the strip-shaped hole on first scissors rod are the first strip-shaped hole, and the briquetting connected on first scissors rod is first
Briquetting, the strip-shaped hole on second scissors rod are the second strip-shaped hole, and the briquetting connected on second scissors rod is the
Two briquettings；
When first scissors rod and the second scissors rod consistency from top to bottom, the front end of first strip-shaped hole and the second strip-shaped hole
It is overlapped, the rear end of first strip-shaped hole is located at the piston rod and the swivel pin of the pushing tow cylinder with first briquetting
The same side of line, the rear end of second strip-shaped hole and second briquetting be located at the piston rod of the pushing tow cylinder with it is described
The other side of the line of swivel pin.
Using the above design, scissor it is simple for structure compact, the first briquetting and the second briquetting can be to workpiece when scissor is opened
The opposite cavity wall of inner cavity applies stable pressure on top surface.
The two of the purpose of this utility model are to provide a kind of suitable for the fixture for the workpiece received in being open.
A kind of fixture is equipped with hold-down mechanism mounting base, in the compacting machine it is critical that including substrate on the substrate
It is provided with above-mentioned hold-down mechanism in structure mounting base, first briquetting is corresponded in the hold-down mechanism mounting base and is additionally provided with fixation
Supporting block；
Hold-down mechanism mounting base described in horizontal face is equipped with support base, the free end of scissors rod described in the support base face；
Second briquetting is corresponded to outside the hold-down mechanism mounting base is additionally provided with positioning compression seat.
It, can be from three directions to forming stable positioning and clamping with the workpiece that negative angle is open using the above design.
As optimal technical scheme, above-mentioned support base is equipped with supporting block, which is equipped with towards first pressure
The supporting surface of block and the second briquetting, the oblique top of the supporting surface.
Using the above design, the supporting surface of supporting block and the outer wall of workpiece are adapted, and are supported to workpiece.
As optimal technical scheme, above-mentioned positioning compression seat is equipped with manual top-pressure mechanism, right on the manual top-pressure mechanism
Second briquetting is answered to be connected with press supporting block, it is fixed towards being equipped with first on the face of second briquetting in the press supporting block
Position pin, first positioning pin stretch out horizontally outward, and first positioning pin is between the second briquetting and the supporting block；
It is also horizontal above the press supporting block to be equipped with the second positioning pin.
Using the above design, operator manipulates manual top-pressure mechanism, convenient that workpiece is positioned and supported.
As optimal technical scheme, above-mentioned manual top-pressure mechanism is manual air cylinder, and the cylinder body of the manual air cylinder is fixed on institute
It states on positioning compression seat, the piston rod free end of the manual air cylinder is equipped with top pressing board, which, should towards second briquetting
Top pressing board is equipped with the press supporting block, the first positioning pin and the second positioning pin.
Using the above design, facilitate the handle of operator's rotation manual cylinder to control press supporting block, first fixed
Position pin and the second positioning pin are to the compression and positioning of workpiece.
The utility model has the advantages that using the utility model has the beneficial effects that being both able to achieve split mouth by the design of cleverly fixture
Stablizing for workpiece with negative angle compresses, and in turn avoids the shortcomings that traditional method of clamping scratches workpiece surface.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of conventional clamp；
Fig. 2 is the structural schematic diagram one of embodiment one；
Fig. 3 is the structural schematic diagram two of embodiment one；
Fig. 4 is the structural schematic diagram one of embodiment two；
Fig. 5 is the structural schematic diagram two of embodiment two；
Fig. 6 is the enlarged drawing in the portion m in Fig. 5；
Fig. 7 is the structural schematic diagram three of embodiment two；
Fig. 8 is schematic diagram of the piece-holder on fixture.
Specific embodiment
Below with reference to embodiment and attached drawing, the utility model is described in further detail.
Embodiment one
As shown in Fig. 2, a kind of should including fixed tumble cylinder 110 suitable for the hold-down mechanism for the workpiece received in being open
The piston rod of tumble cylinder 110 is connected with flip-arm 120, and scissor-type hold-down mechanism 130 is equipped on the flip-arm 120.
As shown in figure 3, the scissor-type hold-down mechanism 130 includes top-pushing mechanism 131, which is pushing tow gas
Cylinder, the cylinder body of the pushing tow cylinder are fixed on the flip-arm 120, and the piston rod free end of the pushing tow cylinder is towards the overturning
The piston rod free end of the free end of arm 120, the pushing tow cylinder is hinged with scissor, which includes two scissors rods, two institutes
The tail end for stating scissors rod is hinged with the piston rod free end of the pushing tow cylinder respectively, is respectively equipped on two scissors rods curved
Bent strip-shaped hole, the bending direction of two strip-shaped holes is on the contrary, be equipped with the same swivel pin in two strip-shaped holes
132, which is installed on the flip-arm 120.The piston rod of the pushing tow cylinder is flexible to cut described in drive two
Fork arm is opened or is closed up, and is respectively provided with an outside briquetting in the free end of two scissors rods.
Specifically, two scissors rods are the first scissors rod 133 and the second scissors rod 134 of mounted on top setting, institute
Stating the strip-shaped hole on the first scissors rod 133 is the first strip-shaped hole 135, and the briquetting connected on first scissors rod 133 is
First briquetting 137, the strip-shaped hole on second scissors rod 134 are the second strip-shaped hole 136, are connected on second scissors rod 134
The briquetting connect is the second briquetting 138.
When first scissors rod 133 and the second 134 consistency from top to bottom of scissors rod, first strip-shaped hole 135 and Article 2
The front end in shape hole 136 is overlapped, and the rear end of first strip-shaped hole 135 and first briquetting 137 are located at the pushing tow cylinder
The same side of the line of piston rod and the swivel pin 132, the rear end of second strip-shaped hole 136 and second briquetting 138
Positioned at the other side of the line of the piston rod and swivel pin 132 of the pushing tow cylinder.
In use, the piston rod of pushing tow cylinder ejects, the rear end of first strip-shaped hole 135 and the second strip-shaped hole 136 (is leaned on
One end of nearly piston rod) it is located at the swivel pin 132, the free end of first scissors rod 133 and the second scissors rod 134 is closed
Holding together, the first briquetting 137 and the second briquetting 138 close up at this time, and the tumble cylinder 110 works, and drive flip-arm 120 to rotate, the
One briquetting 137 and the second briquetting 138 enter workpiece lumen from top.Then the piston rod of pushing tow cylinder, which bounces back, resets, and described the
The front end (one end far from piston rod) of one strip-shaped hole 135 and the second strip-shaped hole 136 is located at the swivel pin 132, and described the
The free end of one scissors rod 133 and the second scissors rod 134 is separated from each other, and first briquetting 137 and the second briquetting 138 separately divide
The other side wall to workpiece presses.After the completion of welding, the piston rod of pushing tow cylinder is ejected, and scissor closes up, and afterwards turns over cylinder
110 drive flip-arms 12 are flipped up, and the first briquetting 137 and the second briquetting 138 leave workpiece lumen.
Embodiment two
As also shown in e.g. figs. 4-7, a kind of fixture, including substrate 400 are equipped with hold-down mechanism mounting base 100 on the substrate 400,
The hold-down mechanism being provided in the hold-down mechanism mounting base 100 in embodiment one.Second scissors rod 134 falls in described turn over
On pivoted arm 120 and slide on.The cylinder body and hold-down mechanism mounting base 100 of the tumble cylinder 110 are affixed, in the compacting machine
First briquetting 137 is corresponded in structure mounting base 100 is additionally provided with fixed support block 140.
It is additionally provided with flip-arm supporting block 139 below the flip-arm 120, is supported with being formed to flip-arm 120, prevents it
Front end is by gravity sag.
Hold-down mechanism mounting base 100 described in horizontal face is equipped with support base 200, scissors rod described in 200 face of support base
Free end, the support base 200 is equipped with supporting block 210, which is equipped with towards 137 He of the first briquetting
The supporting surface 220 of second briquetting 138, the oblique top of supporting surface 220.
Second briquetting 138 is corresponded to outside the hold-down mechanism mounting base 100 is additionally provided with positioning compression seat 300.This is fixed
Position pressed seat 300 is equipped with manual top-pressure mechanism 310, corresponds to second briquetting 138 on the manual top-pressure mechanism 310 and is connected with
Supporting block 320 is pressed, it, should in the press supporting block 320 towards the first positioning pin 330 is equipped on the face of second briquetting 138
Horizontally toward second briquetting 138 stretches out first positioning pin 330, first positioning pin 330 be located at the second briquetting 138 with it is described
Between supporting block 210.The second positioning pin 340 is additionally provided with above the press supporting block 320.
The manual top-pressure mechanism 310 is manual air cylinder, and the cylinder body of the manual air cylinder is fixed on the positioning compression seat 300
On, the piston rod free end of the manual air cylinder is equipped with top pressing board 350, and the top pressing board 350 is towards second briquetting 138, the top
Pressing plate 350 is equipped with the press supporting block 320, the first positioning pin 330 and the second positioning pin 340.In use, operator uses
The handle of hand rotation manual cylinder, so that the piston rod of the manual air cylinder stretches out or retraction.
As shown in figure 8, workpiece is clamped including the first face cavity wall, the third face chamber of the second face cavity wall and connection between
Wall, wherein the first face cavity wall clamps and the second face cavity wall forms negative angle far from the edge of third face cavity wall and is open.It is described
Flip-arm 120 enters workpiece lumen from top, and then the piston rod ejection of pushing tow cylinder, scissor are opened, first briquetting 137
It separates with the second briquetting 138 and the side wall of workpiece is pressed respectively.First briquetting 137 and fixed support block 140 are by workpiece
First face cavity wall clamps, the second face cavity wall of the second briquetting 138 and press 320 clamping workpiece of supporting block, 330 He of the first positioning pin
Second positioning pin 340 penetrates the second face cavity wall, to position to workpiece.The supporting surface 220 of the support base 200 is obliquely
Side is supported third face cavity wall.
Finally, it should be noted that foregoing description is only the preferred embodiment of the utility model, the common skill of this field
Art personnel are under the enlightenment of the utility model, under the premise of without prejudice to the utility model aims and claim, can make
Multiple similar expressions, such transformation are each fallen within the protection scope of the utility model.
Claims (8)
1. it is a kind of suitable for the hold-down mechanism for the workpiece received in being open, including fixed tumble cylinder (110), the tumble cylinder
(110) piston rod is connected with flip-arm (120), it is characterised in that: scissor-type hold-down mechanism is equipped on the flip-arm (120)
(130)；
The scissor-type hold-down mechanism (130) includes top-pushing mechanism (131), which is arranged in the flip-arm
(120) on, the yoke frame of the top-pushing mechanism (131) is stretched to the free end of the flip-arm (120) top, and the yoke frame is hinged with
Scissor, yoke frame ejection or bounces back to drive the scissor to open or close up, set in the free end of the scissor there are two
Outside briquetting respectively.
2. the hold-down mechanism of the interior workpiece received according to claim 1 that is suitable for being open, it is characterised in that: the pusher
Structure (131) is pushing tow cylinder, and the cylinder body of the pushing tow cylinder is fixed on the flip-arm (120), the piston rod of the pushing tow cylinder
For the yoke frame, free end of the free end of the piston rod of the pushing tow cylinder towards the flip-arm (120), the pushing tow cylinder
Piston rod free end be hinged with the scissor.
3. the hold-down mechanism of the interior workpiece received according to claim 2 that is suitable for being open, it is characterised in that: the scissor packet
Two scissors rods are included, curved strip-shaped hole, the bending direction phase of two strip-shaped holes are respectively equipped on two scissors rods
Instead, the same swivel pin (132) are equipped in two strip-shaped holes, which is installed in the flip-arm (120)
On；
The tail end of two scissors rods is hinged with the piston rod free end of the pushing tow cylinder respectively, in two scissors rods
Free end be respectively provided with the outside briquetting.
4. the hold-down mechanism of the interior workpiece received according to claim 3 that is suitable for being open, it is characterised in that: cut described in two
Fork arm is the first scissors rod (133) and the second scissors rod (134) of mounted on top setting, on first scissors rod (133)
Strip-shaped hole is the first strip-shaped hole (135), and the briquetting connected on first scissors rod (133) is the first briquetting (137), institute
Stating the strip-shaped hole on the second scissors rod (134) is the second strip-shaped hole (136), is connected on second scissors rod (134) described
Briquetting is the second briquetting (138)；
The swivel pin (132) is vertically threaded through in first strip-shaped hole (135) and the second strip-shaped hole (136)；
When first scissors rod (133) and the second scissors rod (134) consistency from top to bottom, first strip-shaped hole (135) and second
The front end of strip-shaped hole (136) is overlapped, and the rear end of first strip-shaped hole (135) and first briquetting (137) are located at the top
The same side of the line of the piston rod of push cylinder and the swivel pin (132), the rear end of second strip-shaped hole (136) with it is described
Second briquetting (138) is located at the other side of the piston rod of the pushing tow cylinder and the line of the swivel pin (132).
5. a kind of fixture, it is characterised in that: including substrate (400), hold-down mechanism mounting base is equipped on the substrate (400)
(100), it is provided with hold-down mechanism as claimed in claim 4 in the hold-down mechanism mounting base (100), is installed in the hold-down mechanism
First briquetting (137), which is corresponded to, on seat (100) is additionally provided with fixed support block (140)；
Hold-down mechanism mounting base (100) described in horizontal face is equipped with support base (200), scissor described in support base (200) face
The free end of bar；
Second briquetting (138) is corresponded to outside in the hold-down mechanism mounting base (100) is additionally provided with positioning compression seat (300).
6. a kind of fixture according to claim 5, it is characterised in that: the support base (200) is equipped with supporting block
(210), which is equipped with the supporting surface (220) towards first briquetting (137) and the second briquetting (138), should
Supporting surface (220) oblique top.
7. a kind of fixture according to claim 5, it is characterised in that: the positioning compression seat (300) is equipped with top manually
Press mechanism (310) corresponds to second briquetting (138) on the manual top-pressure mechanism (310) and is connected with press supporting block (320),
The first positioning pin (330) are equipped with towards on the face of second briquetting (138) in the press supporting block (320), first positioning
Pin (330) stretches out horizontally outward, and first positioning pin (330) is between the second briquetting (138) and the supporting block (210)；
It is also horizontal above the press supporting block (320) to be equipped with the second positioning pin (340).
8. a kind of fixture according to claim 7, it is characterised in that: the manual top-pressure mechanism (310) is manual air cylinder,
The cylinder body of the manual air cylinder is fixed on the positioning compression seat (300), and the piston rod free end of the manual air cylinder is equipped with press
Plate (350), the top pressing board (350) are equipped with the press supporting block towards second briquetting (138), the top pressing board (350)
(320), the first positioning pin (330) and the second positioning pin (340).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822101895.4U CN209303967U (en) | 2018-12-14 | 2018-12-14 | Hold-down mechanism and fixture suitable for the workpiece received in being open |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822101895.4U CN209303967U (en) | 2018-12-14 | 2018-12-14 | Hold-down mechanism and fixture suitable for the workpiece received in being open |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209303967U true CN209303967U (en) | 2019-08-27 |
Family
ID=67677034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822101895.4U Active CN209303967U (en) | 2018-12-14 | 2018-12-14 | Hold-down mechanism and fixture suitable for the workpiece received in being open |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209303967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131272A (en) * | 2021-12-15 | 2022-03-04 | 汉中大秦机械有限公司 | Heavy adjustable rotary mechanical arm for compaction and method |
-
2018
- 2018-12-14 CN CN201822101895.4U patent/CN209303967U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131272A (en) * | 2021-12-15 | 2022-03-04 | 汉中大秦机械有限公司 | Heavy adjustable rotary mechanical arm for compaction and method |
| CN114131272B (en) * | 2021-12-15 | 2024-06-11 | 汉中大秦机械有限公司 | Heavy adjustable rotary mechanical arm for compaction |
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