CN215200693U - Automatic clamping shoveling and milling clamp - Google Patents
Automatic clamping shoveling and milling clamp Download PDFInfo
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- CN215200693U CN215200693U CN202121175192.1U CN202121175192U CN215200693U CN 215200693 U CN215200693 U CN 215200693U CN 202121175192 U CN202121175192 U CN 202121175192U CN 215200693 U CN215200693 U CN 215200693U
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Abstract
The utility model provides an automatic press from both sides tight shovel milling fixture, including the anchor clamps body and set up the positioning mechanism on the anchor clamps body, auxiliary supporting mechanism and hold-down mechanism, positioning mechanism is used for carrying out horizontal and longitudinal positioning to the work piece, and auxiliary supporting mechanism is used for supporting the work piece, and hold-down mechanism is used for carrying out vertical compressing tightly to the work piece, and hold-down mechanism is including pressing claw and drive unit, and the end of pressing the claw is articulated with drive unit's output, drives the rotation of pressing the claw during drive unit reciprocating motion so that its front end is along vertical pushing down or lifting. The utility model discloses an automatic work piece that compresses tightly of hold-down mechanism through the supporting work piece of auxiliary bearing mechanism, and it is reliable to have realized that the foundry goods when milling fixes a position, has guaranteed to mill the foundry goods quality, has improved production efficiency, has reduced the acquisition cost and has reduced workman intensity of labour, ensures product quality stable, improves the foundry goods qualification rate, has simple structure, operates swiftly, advantage that the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of the foundry goods shaping, especially, relate to an automatic clamping shovel milling fixture.
Background
The casting structures of the cylinder body and cylinder cover products are complex, the requirements on production efficiency and quality qualification rate are high, and the cast castings need to be cleaned as soon as possible, so that the casting device is convenient for processing and assembling in subsequent procedures. The castings of the cylinder body and the cylinder cover are generally provided with mud cores, and the mud cores are subjected to a hot core box core making process and dozens of procedures to finally form blank castings of the cylinder body and the cylinder cover. Due to various factors, cast products have thick flash, casting flash is cleaned manually, labor intensity is increased, production efficiency is extremely low, subsequent procedure processing and product quality are affected, manual cleaning damage is more, manufacturing cost is increased, and product yield is reduced.
The shovel that adopts manual closing device to make mills anchor clamps at present, presss from both sides tightly the foundry goods to rely on the manual work to mill the foundry goods overlap, because the manual work compresses tightly the atress inhomogeneous, has the foundry goods not hard up, presses uneven phenomenon such as uneven in process of production, leads to producing the foundry goods defective goods, has great influence to shovel milling quality and production efficiency, and has the potential safety hazard, and increases operation personnel intensity of labour. Therefore, a shovel milling clamp with a clamping function is needed to be designed, so that the operation convenience is improved, and the production efficiency is improved.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model aims to provide an automatic clamping shovel mills anchor clamps for the shovel that relies on manual closing device to make among the solution prior art mills anchor clamps influence production efficiency and product quality's problem.
In order to realize above-mentioned purpose and other relevant purposes, the utility model provides an automatic clamping shovel milling fixture for the automatic clamping work piece, automatic clamping shovel milling fixture includes: the clamping device comprises a clamp body, and a positioning mechanism, an auxiliary supporting mechanism and a pressing mechanism which are arranged on the clamp body, wherein the positioning mechanism is used for transversely and longitudinally positioning a workpiece, the auxiliary supporting mechanism is used for supporting the workpiece, the pressing mechanism is used for vertically pressing the workpiece, the pressing mechanism comprises a pressing claw and a driving unit, the tail end of the pressing claw is hinged with the output end of the driving unit, and the driving unit drives the pressing claw to rotate when reciprocating so as to enable the front end of the pressing claw to be pressed down or lifted up vertically.
Furthermore, the pressing mechanism further comprises a pressing claw connecting plate and a pressing claw supporting seat, the pressing claw supporting seat is fixed on the clamp body, and two ends of the pressing claw connecting plate are hinged with the pressing claw and the pressing claw supporting seat respectively.
Furthermore, a connector is further arranged between the pressing claw and the output end of the driving unit, and the connector is sleeved on the output end of the driving unit and is hinged to the pressing claw.
Further, the connector is rotatably connected with the output end of the driving unit.
Further, the driving unit adopts a linear cylinder, and the motion direction of the linear cylinder is perpendicular to the upper surface of the fixture body.
Furthermore, the front end of the pressing claw is provided with a wedge-shaped part, the bottom of the pressing claw is a plane, and the workpiece is pressed through the bottom of the pressing claw.
Furthermore, the positioning mechanism comprises a stop block, a positioning block and a limiting block, wherein the stop block is transversely arranged along the upper surface of the clamp body and is used for transversely positioning the workpiece; the positioning blocks and the limiting blocks are arranged in a staggered mode along the longitudinal direction of the upper surface of the clamp body and are used for longitudinally positioning the workpiece.
Furthermore, the auxiliary supporting mechanism comprises a supporting seat, a supporting column, an elastic part and a locking part, the supporting seat is fixed on the clamp body, the supporting column is arranged in the supporting seat, the elastic part is positioned below the supporting column and supports the movement of the supporting column, the front end of the locking part transversely penetrates through the supporting seat and tightly supports the supporting column, and the locking part is rotated to enable the supporting column to rise or fall.
Furthermore, retaining member and bearing threaded connection, the outer wall of support post is seted up the locking groove of slope, just the tank bottom in locking groove is along the inside extension of the outer wall of following the support post of the direction that is close to the elastic component, the front end of retaining member be provided with the locking portion that the locking groove matches.
Further, the positioning mechanism, the auxiliary supporting mechanism and the pressing mechanism are provided in plurality.
As described above, the utility model discloses following beneficial effect has:
the workpiece is transversely and longitudinally positioned through the positioning mechanism, the auxiliary supporting mechanism supports the workpiece, and the workpiece is vertically and automatically compressed through the compressing mechanism, so that the positioning is reliable when the casting is milled, the quality of the milled casting is ensured, the production efficiency is improved, the acquisition cost is reduced, the labor intensity of workers is reduced, the stable product quality is ensured, the qualified rate of the casting is improved, and the device has the advantages of simple structure, quickness in operation and high practicability.
Drawings
Fig. 1 is a schematic structural diagram provided in an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
fig. 4 is an enlarged view of a in fig. 3.
Description of reference numerals
10-a clamp body;
20-a positioning mechanism; 21-a stopper; 22-a positioning block; 23-a limiting block;
30-auxiliary support means; 31-a support base; 311-limit step; 32-a support column; 321-locking grooves; 322-limit shaft shoulder; 33-an elastic member; 34-a locking member; 341-locking part;
40-a pressing mechanism; 41-a drive unit; 42-a connector; 43-pressing claw; 44-pressing claw connecting plates; 45-pressing claw supporting seat.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Please refer to fig. 1 to 3, the present invention provides an automatic clamping type milling and shoveling clamp, which is used for automatically clamping a workpiece, and comprises: the clamping fixture comprises a clamping fixture body 10, and a positioning mechanism 20, an auxiliary supporting mechanism 30 and a pressing mechanism 40 which are arranged on the clamping fixture body 10, wherein the positioning mechanism 20 is used for positioning a workpiece transversely and longitudinally, the auxiliary supporting mechanism 30 is used for supporting the workpiece, the pressing mechanism 40 is used for pressing the workpiece vertically, the pressing mechanism 40 comprises a pressing claw 43 and a driving unit 41, the tail end of the pressing claw 43 is hinged with the output end of the driving unit 41, and the driving unit 41 drives the pressing claw 43 to rotate when reciprocating so as to enable the front end of the pressing claw 43 to be pressed or lifted vertically.
Specifically, the upper surface of the fixture body 10 is provided with a positioning surface, and in the assembling and debugging processes, the casting is lifted to the fixture body 10 and stably placed on the positioning surface, so that the casting is ensured to be parallel to the fixture body 10; the casting is automatically compressed by the compressing mechanism 40 after being positioned, the casting is stable during automatic compression, the casting is reliably positioned during milling, and the cast flash after milling is in a process range, so that the normal processing of the subsequent procedure is ensured. In the embodiment, a casting to be milled by shoveling and milling adopts a 4H cylinder cover as an example for explanation.
Wherein, according to the shape of the casting and the technological requirements (milling the upper and lower surfaces or the air inlet surfaces or the front and rear end surfaces), the size (length, width and height) of the clamp body 10 is determined and the clamp body 10 is designed; determining a positioning distance and height and designing a positioning mechanism 20 according to the positioning datum point of the casting, so that the casting is stably placed on the positioning surface of the fixture body 10; according to the rotation direction of the cutter head of the equipment (special milling machine) and the working stroke of the equipment carriage, a stop block 21 is designed, and the parts (on the plane of the casting, the parts avoiding flash, bosses, ribs and bonded sand) of the casting are selected in principle. The positioning mechanism 20 is required to be reliably positioned, and is required to be consistent with the size inspection of the subsequent casting datum point in principle during design, so that the size allowance of the upper surface and the lower surface is consistent during milling. The pressing mechanism 40 is required to be safe and reliable, and ensures that the casting is stable and firmly pressed in the casting milling process, the casting is not damaged by a cutter head, and the milling flash is in a process range.
The bottom of the fixture body 10 is provided with a positioning key groove, the fixture body is fixed by a positioning key on the equipment carriage, and the fixture body 10 can be firmly fixed on the equipment carriage by firmly pressing the four press grooves through the press plate. The center line of the fixture body 10 needs to be consistent with the center line of the workpiece, so that accurate positioning of the workpiece on the fixture body 10 and accurate subsequent milling are guaranteed. In order to ensure reliable positioning and pressing, the positioning mechanism 20, the auxiliary supporting mechanism 30 and the pressing mechanism 40 are provided in plurality.
The hold-down mechanism 40 is designed according to the face of the casting where the flash is milled. The pressing mechanism 40 comprises a driving unit 41, a pressing claw 43, a pressing claw connecting plate 44 and a pressing claw supporting seat 45, the tail end of the pressing claw 43 is hinged with the output end of the driving unit 41, the pressing claw supporting seat 45 is fixed on the clamp body 10, two ends of the pressing claw connecting plate 44 are respectively hinged with the pressing claw 43 and the pressing claw supporting seat 45, and the driving unit 41 drives the pressing claw 43 to rotate when reciprocating so that the front end of the pressing claw is vertically pressed down or lifted up. Specifically, two sides of the pressing claw supporting seat 45 are symmetrically provided with one pressing claw connecting plate 44, and the pressing claw connecting plate 44 is arranged between the pressing claw supporting seat 45 and the two pressing claw connecting plates 44 in a penetrating mode through a pin so that the pressing claw connecting plate 44 is hinged to the pressing claw supporting seat 45. Accordingly, the other end of each pressing claw connecting plate 44 is hinged to the pressing claw 43. The structure enables the driving unit 41 to drive the tail end of the pressing claw 43 to move along the vertical direction, and the pressing claw connecting plate 44 is hinged with the middle part of the pressing claw 43. In the initial state, the driving unit 41 drives the tail end of the pressing claw 43 to move downwards, and the pressing claw 43 rotates to lift the front end of the pressing claw 43; when the workpiece is set, the drive unit 41 drives the distal end of the pressing claw 43 to move upward, and the pressing claw 43 rotates to drop its leading end to press the workpiece.
Preferably, a connector 42 is further disposed between the pressing claw 43 and the output end of the driving unit 41, and the connector 42 is sleeved on the output end of the driving unit 41 and is hinged to the pressing claw 43. Wherein, the connector 42 is rotatably connected with the output end of the driving unit 41. With the structure, the pressing position of the pressing claw 43 on the workpiece can be conveniently adjusted according to the actual pressing requirement of the workpiece. By rotating the coupling head 42, thereby rotating the position of the pressing claw 43, accordingly, the position of the pressing claw support 45 on the clamp body 10 can also be appropriately adjusted to be compatible with the pressing claw 43.
In this embodiment, the driving unit 41 employs a linear cylinder, and the linear cylinder moves in a direction perpendicular to the upper surface of the clamp body 10. The linear cylinder is fixed on the base of the fixture body 10 through a cylinder base. The linear air cylinder is low in cost and simple to control, the air pipe is connected with the air cylinder, the air passage on-off of the air pipe is controlled through the control valve, and the control process is efficient and rapid. Preferably, the movement of the driving units 41 can be controlled simultaneously to achieve synchronous pressing.
In order to facilitate the pressing claw 43 to press the workpiece, in this embodiment, the front end of the pressing claw 43 has a wedge-shaped portion, the bottom of the pressing claw 43 is a plane, and the workpiece is pressed by the bottom of the pressing claw 43. The structure ensures reliable compression and ensures the stability of the casting in the milling process.
In this embodiment, 5 pressing mechanisms 40 are provided, wherein 3 pressing mechanisms 40 are located on the front side of the workpiece, and the other 2 pressing mechanisms 40 are located on the rear side of the workpiece, so that the workpiece is pressed from both sides.
The positioning mechanism 20 comprises a stop block 21, a positioning block 22 and a limiting block 23, wherein the stop block 21 is transversely arranged along the upper surface of the clamp body 10 and used for transversely positioning a workpiece; the positioning blocks 22 and the limiting blocks 23 are arranged in a staggered manner along the longitudinal direction of the upper surface of the fixture body 10 and are used for longitudinally positioning a workpiece. Specifically, the position and the height of a positioning block 22 are designed according to a positioning reference point of a casting, and a positioning column is arranged in the middle of the positioning block; designing the position and height of the limiting block 23 according to the limiting position of the workpiece; and determining the direction and position of the stop block 21 according to the rotation direction of the equipment cutter head and the working stroke of the equipment dragging plate. In this embodiment, 1 stopper 21 is longitudinally provided on the left side of the workpiece, 1 positioning block 22 is transversely provided on the left front side of the workpiece, 1 positioning block 22 is longitudinally provided on the right front side of the workpiece, 1 positioning block 22 is transversely provided on the right rear side of the workpiece, and 1 stopper 23 is transversely provided on each of the left rear side and the right rear side of the workpiece. The stop block 21, the positioning block 22 and the limiting block 23 are detachably connected with the positioning surface of the fixture body 10 and can be connected with the fixture body 10 through bolts.
Referring to fig. 4, the auxiliary supporting mechanism 30 is used to support the workpiece, so as to balance the pressing force of the pressing mechanism 40 and prevent the workpiece from being damaged. The auxiliary supporting mechanism 30 comprises a supporting seat 31, a supporting column 32, an elastic member 33 and a locking member 34, the supporting seat 31 is fixed on the clamp body 10, the supporting column 32 is arranged in the supporting seat 31, the elastic member 33 is positioned below the supporting column 32 and supports the movement of the supporting column 32, the front end of the locking member 34 transversely penetrates through the supporting seat 31 and tightly supports the supporting column 32, and the supporting column 32 can be lifted or lowered by rotating the locking member 34. In this embodiment, 3 auxiliary support mechanisms 30 are provided in total, and are distributed on the front side, the left rear side, and the right rear side of the workpiece. The elastic member 33 is a spring, and the supporting column 32 is supported by the elastic force of the spring. The supporting seat 31 is internally provided with a mounting hole for accommodating the elastic piece 33, the elastic piece 33 is positioned in the mounting hole, the inner wall of the mounting hole is provided with a limiting step 311, correspondingly, the outer wall of the supporting column 32 is provided with a limiting shaft shoulder 322, and when the supporting column 32 performs lifting motion, the limiting shaft shoulder 322 is clamped on the limiting step 311 to realize axial limiting of the supporting column 32 so as to prevent the supporting column 32 from rushing out of the supporting seat 31.
The locking member 34 is in threaded connection with the supporting seat 31, an inclined locking groove 321 is formed in the outer wall of the supporting column 32, the bottom of the locking groove 321 extends inwards from the outer wall of the supporting column 32 along the direction close to the elastic member 33, and a locking portion 341 matched with the locking groove 321 is arranged at the front end of the locking member 34. In this embodiment, a handle is disposed at the rear end of the locking member 34 for facilitating the locking operation. The locking member 34 can be rotated to adjust the direction of movement of the support post 32 to raise or lower it as desired.
When the utility model is used for clamping, firstly, a casting is placed on the equipment supporting plate, an operator uses a special lifting hook to lift the casting, holds the casting with one hand, presses a cantilever crane button with the other hand, and then stably places the casting on the positioning surface of the automatic clamping shoveling and milling fixture; and then, controlling the pressing mechanism 40 to start to realize automatic pressing of the workpiece.
Through tests, the casting flash is manually ground in the past, and only 6 (6U) cylinder bodies can be ground in 1 hour; adopt self-holding to shovel and mill anchor clamps, 15 are shoveled and milled in 1 hour, and production efficiency improves 1 time at least, and intensity of labour reduces, and the product percent of pass improves, and operation personnel convenient operation is laborsaving, and the back process quality is normal.
To sum up, the embodiment of the utility model provides an among the automatic clamping shovel milling fixture, carry out horizontal and longitudinal positioning to the work piece through positioning mechanism, through the supporting work piece of auxiliary supporting mechanism, carry out vertical automatic pressing to the work piece through hold-down mechanism, it is reliable to have realized that the foundry goods is milled the time location, the foundry goods quality of milling has been guaranteed, and the production efficiency is improved, reduced the acquisition cost and reduced workman intensity of labour, ensure product quality stability, improve the foundry goods qualification rate, and the clamp has the advantages of simple structure, the operation is swift, the practicality is strong.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An automatic clamping shovel milling fixture for automatically clamping a workpiece, comprising: the clamping device comprises a clamp body, and a positioning mechanism, an auxiliary supporting mechanism and a pressing mechanism which are arranged on the clamp body, wherein the positioning mechanism is used for transversely and longitudinally positioning a workpiece, the auxiliary supporting mechanism is used for supporting the workpiece, the pressing mechanism is used for vertically pressing the workpiece, the pressing mechanism comprises a pressing claw and a driving unit, the tail end of the pressing claw is hinged with the output end of the driving unit, and the driving unit drives the pressing claw to rotate when reciprocating so as to enable the front end of the pressing claw to be pressed down or lifted up vertically.
2. The automatic clamping shoveling and milling clamp of claim 1, wherein: the pressing mechanism further comprises a pressing claw connecting plate and a pressing claw supporting seat, the pressing claw supporting seat is fixed on the clamp body, and two ends of the pressing claw connecting plate are hinged with the pressing claw and the pressing claw supporting seat respectively.
3. The automatic clamping shoveling and milling clamp of claim 1, wherein: the connecting head is further arranged between the pressing claw and the output end of the driving unit, is sleeved on the output end of the driving unit and is hinged to the pressing claw.
4. The automatic clamping shoveling and milling clamp of claim 3, wherein: the connector is rotationally connected with the output end of the driving unit.
5. The automatic clamping shoveling and milling clamp of claim 1, wherein: the driving unit adopts a linear cylinder, and the motion direction of the linear cylinder is perpendicular to the upper surface of the clamp body.
6. The automatic clamping shoveling and milling clamp of claim 1, wherein: the front end of the pressing claw is provided with a wedge-shaped part, the bottom of the pressing claw is a plane, and a workpiece is pressed through the bottom of the pressing claw.
7. The automatic clamping shoveling and milling clamp of claim 1, wherein: the positioning mechanism comprises a stop block, a positioning block and a limiting block, wherein the stop block is transversely arranged along the upper surface of the clamp body and is used for transversely positioning the workpiece; the positioning blocks and the limiting blocks are arranged in a staggered mode along the longitudinal direction of the upper surface of the clamp body and are used for longitudinally positioning the workpiece.
8. The automatic clamping shoveling and milling clamp of claim 1, wherein: the auxiliary supporting mechanism comprises a supporting seat, a supporting column, an elastic piece and a locking piece, the supporting seat is fixed on the clamp body, the supporting column is arranged in the supporting seat, the elastic piece is located below the supporting column and supports the movement of the supporting column, the front end of the locking piece transversely penetrates through the supporting seat and tightly supports the supporting column, and the locking piece is rotated to enable the supporting column to rise or fall.
9. The automatic clamping shoveling and milling clamp of claim 8, wherein: the locking piece is in threaded connection with the supporting seat, the outer wall of the supporting column is provided with an inclined locking groove, the bottom of the locking groove extends inwards from the outer wall of the supporting column along the direction close to the elastic piece, and the front end of the locking piece is provided with a locking part matched with the locking groove.
10. The automatic clamping shoveling and milling clamp of claim 1, wherein: the positioning mechanism, the auxiliary supporting mechanism and the pressing mechanism are arranged in a plurality of numbers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121175192.1U CN215200693U (en) | 2021-05-28 | 2021-05-28 | Automatic clamping shoveling and milling clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121175192.1U CN215200693U (en) | 2021-05-28 | 2021-05-28 | Automatic clamping shoveling and milling clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215200693U true CN215200693U (en) | 2021-12-17 |
Family
ID=79421706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121175192.1U Active CN215200693U (en) | 2021-05-28 | 2021-05-28 | Automatic clamping shoveling and milling clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215200693U (en) |
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2021
- 2021-05-28 CN CN202121175192.1U patent/CN215200693U/en active Active
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