CN214291888U - Thin-wall long-cylinder part end face machining clamp - Google Patents
Thin-wall long-cylinder part end face machining clamp Download PDFInfo
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- CN214291888U CN214291888U CN202023037901.8U CN202023037901U CN214291888U CN 214291888 U CN214291888 U CN 214291888U CN 202023037901 U CN202023037901 U CN 202023037901U CN 214291888 U CN214291888 U CN 214291888U
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Abstract
The utility model relates to a thin-wall long cylinder part end face machining clamp, which comprises a bottom plate and a bracket, wherein the top of the bracket is provided with a cylinder; a self-lubricating guide sleeve is arranged on the bracket; the upper base is provided with a guide rod; the guide rod penetrates through the self-lubricating guide sleeve; the lower base is fixed at the bottom of the bracket through a bolt; the axial positioning cylinder is fixed on the bracket through a cylinder connecting plate; the front end of the piston rod of the axial positioning cylinder is provided with an axial positioning block, and the control step comprises the following steps: putting a workpiece to be processed into a clamp; pushing the workpiece to an axial positioning block; the upper base portion is clamped in place; meanwhile, the positioning block of the axial positioning mechanism automatically returns; and after the workpiece is machined, the cylinder drives the upper base to return to the original position, and the positioning block extends out. The utility model discloses long section of thick bamboo class part end face machining anchor clamps of thin wall has reduced staff's intensity of labour, and the two main shaft numerical control boring machines of cooperation have realized that section of thick bamboo class part once loads and blocks and accomplish both sides end face machining, improve the processing qualification rate and the machining efficiency of work piece, have reduced the work piece cost of doing over again.
Description
Technical Field
The utility model relates to a machining appurtenance, specific theory relates to a long section of thick bamboo class part end face machining anchor clamps of thin wall.
Background
The rigidity of the thin-wall long cylinder part is poor, and the thin-wall long cylinder part is easy to deform in the machining process, so that the machining quality of the thin-wall long cylinder part is affected. Therefore, in the workpiece clamping process, the workpiece clamping stability and the compression amount are required to be ensured to be fixed, and the workpiece clamping times in the same sequence are required to be reduced as much as possible so as to ensure the consistency of the workpiece processing quality.
The tool clamp used for processing the end face of the thin-wall long-cylinder part is a flush tool, and the matching equipment is an economical numerically controlled lathe.
Under the existing tooling condition, the workpiece is pressed against a worker to manually screw an adjusting bolt, the randomness of the pressing amount is high, and the consistency of the processing quality of the workpiece is poor.
Meanwhile, the existing tool is contacted with a workpiece through the arc-shaped positioning sleeve to realize clamping, the contact area of the workpiece in the tool is reduced along with the use abrasion of the tool and the self deformation of part of the workpiece, and the clamping stability of the workpiece is reduced.
One end of the end aligning tool is a fixed axial positioning block, and is matched with an economical numerical control lathe during machining, and machining of the end face of one side needs to be finished firstly and then secondary clamping needs to be finished.
Because the axial positioning is a fixed positioning block, the double-spindle numerical control boring machine cannot be matched to finish the processing of the end surfaces at two sides by one-step clamping, the processing efficiency is low, and the consistency of the processing quality of workpieces is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
Not enough to above-mentioned prior art, the utility model provides a simple structure, convenient operation can realize once dress card and accomplish both sides terminal surface processing, improves processingquality and machining efficiency's long section of thick bamboo class part end face machining anchor clamps of thin wall.
The utility model adopts the technical proposal that:
a clamp for processing the end face of a thin-wall long-cylinder part,
comprises a bottom plate and a bracket, wherein the bracket is integrally cast;
the bracket is fixed on the bottom plate through a bolt to form a main body of the special fixture for processing the end face of the thin-wall long-cylinder part.
The top of the bracket is provided with a cylinder;
a self-lubricating guide sleeve is arranged on the bracket;
the lower end of the cylinder pull rod is connected with the upper base; so as to provide a power source, the cylinder pull rod drives the upper base to move up and down.
Four guide rods are arranged on the upper base;
the guide rod penetrates through the self-lubricating guide sleeve; the guide rod slides in the self-lubricating guide sleeve, and positioning accuracy is higher.
The lower base is fixed at the bottom of the bracket through a bolt;
the positioning copper sleeve is fixed on the upper base and the lower base through screws;
and the positioning copper sleeve directly contacts the workpiece to clamp the workpiece.
In order to accurately control the magnitude of interference, sheet adjusting gaskets are arranged on the contact surfaces of the upper base and the lower base; two pieces of the upper and the lower parts.
The clamping of workpieces with different specifications and sizes can be realized by replacing the positioning copper sleeve, the clamping magnitude of the workpieces can be adjusted by replacing the adjusting gasket, and the clamping stability and reliability of the workpieces are ensured.
The axial positioning cylinder is fixed on the bracket through a cylinder connecting plate;
the front end of the piston rod of the axial positioning cylinder is provided with an axial positioning block; the axial positioning cylinder drives the axial positioning block to axially move; when the workpiece is clamped, the axial positioning of the workpiece is provided, and when the end face of the workpiece is machined, the axial positioning block retracts, so that the end faces on two sides are not influenced to be turned simultaneously.
Four positioning pins are arranged on two sides of the lower base, and four positioning holes are arranged on two sides of the upper base; and realizing the positioning of two holes on one surface.
When the clamp clamping button is started, the cylinder drives the upper base to descend, the positioning pin on the lower base correspondingly penetrates into the positioning hole of the upper base, then the clamp automatically clamps, the upper semicircle and the lower semicircle are prevented from relative dislocation when the positioning copper sleeve is closed, and therefore the positioning accuracy of a workpiece is guaranteed.
The axis of the self-lubricating guide sleeve is arranged along the vertical direction.
The center line of the axial positioning cylinder is superposed with the center line of the positioning copper sleeve.
The positioning copper sleeve is uniformly provided with 6 air outlet grooves with the width of 4.1mm at intervals of 30 degrees, 6 phi 9-phi 5.5 stepped holes at intervals of 75 degrees and 2 phi 1.5 through holes at intervals of 45 degrees.
The utility model discloses relative prior art's beneficial effect:
the utility model discloses long section of thick bamboo class part end face machining anchor clamps of thin wall, simple structure has improved long section of thick bamboo class part end face machining efficiency of thin wall and processing qualification rate, and work piece both ends end face is beated and surface quality satisfies the technological requirement to the processing demand of different size specification work pieces can be satisfied to this frock.
The utility model discloses long section of thick bamboo class part end face machining anchor clamps of thin wall adopts mechanical device to replace the operation of partial manual clamping, and semi-automatization's design has reduced staff's intensity of labour, and the two main shaft numerical control boring machines of cooperation are successfully applied to in the long section of thick bamboo class part end face machining of thin wall, have realized that section of thick bamboo class part once loads the card and accomplishes both sides end face machining, have improved the processing qualification rate and the machining efficiency of work piece, have reduced the work piece cost of doing over again to work piece processingquality uniformity obtains improving.
Drawings
FIG. 1 is a schematic view of the end face machining fixture for thin-walled long-tube parts of the present invention;
fig. 2 is a side view schematic structure of the thin-wall long-cylinder part end face machining clamp of the utility model.
In the drawings, the main parts are illustrated by symbols:
in the figure:
1. axial positioning cylinder 2 and positioning hole
3. Cylinder connecting plate 4, guide bar
5. Cylinder 6, self-lubricating guide pin bushing
7. Bottom plate 8 and axial positioning block
9. Positioning copper sleeve 10 and bracket
11. Upper base 12, adjusting shim
13. A lower base.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples:
as shown in attached figures 1 and 2, the end face machining clamp for the thin-wall long-cylinder parts,
comprises a bottom plate 7 and a bracket 10 which is cast integrally;
the support 10 is fixed on the bottom plate 7 through bolts to form a main body of the special fixture for processing the end face of the thin-wall long-cylinder part.
The top of the bracket 10 is provided with a cylinder 5;
the self-lubricating guide sleeve 6 is arranged on the bracket 10;
the lower end of the cylinder pull rod is connected with the upper base 11; so as to provide a power source, and the cylinder pull rod drives the upper base 11 to move up and down.
Four guide rods 4 are arranged on the upper base 11;
the guide rod 4 penetrates through the self-lubricating guide sleeve 6; the guide rod 4 slides in the self-lubricating guide sleeve 6, and the positioning precision is higher.
The lower base 13 is fixed at the bottom of the bracket 10 through bolts;
the positioning copper sleeve 9 is fixed on the upper base 11 and the lower base 13 through screws;
the positioning copper sleeve 9 directly contacts the workpiece to clamp the workpiece.
In order to accurately control the magnitude of interference, 4 adjusting gaskets 12 are arranged on the contact surfaces of the upper base and the lower base; two pieces of the upper and the lower parts.
The clamping of workpieces with different specifications and sizes can be realized by replacing the positioning copper sleeve 9, the compression interference magnitude of the workpieces can be adjusted by replacing the adjusting gasket 12, and the stability and reliability of the clamping of the workpieces are ensured.
The axial positioning cylinder 1 passes through a cylinder connecting plate3Fixed on the bracket 10;
the front end of the piston rod of the axial positioning cylinder is provided with an axial positioning block 8; the axial positioning cylinder drives the axial positioning block 8 to axially move; when the workpiece is clamped, the axial positioning of the workpiece is provided, and when the end face of the workpiece is machined, the axial positioning blocks 8 retract, so that the end faces on two sides are not influenced to be turned simultaneously.
Four positioning pins are arranged on two sides of the lower base, and four positioning holes 2 are arranged on two sides of the upper base; and realizing the positioning of two holes on one surface.
When the clamp clamping button is started, the cylinder drives the upper base to descend, the positioning pin on the lower base correspondingly penetrates into the positioning hole of the upper base, then the clamp automatically clamps, the upper semicircle and the lower semicircle are prevented from relative dislocation when the positioning copper sleeve is closed, and therefore the positioning accuracy of a workpiece is guaranteed.
The axis of the self-lubricating guide sleeve 6 is arranged along the vertical direction.
The central line of the axial positioning cylinder 1 is superposed with the central line of the positioning copper sleeve 9.
The positioning copper sleeve 9 is uniformly provided with 6 air outlet grooves with the width of 4.1mm at intervals of 30 degrees, 6 phi 9-phi 5.5 stepped holes at intervals of 75 degrees and 2 phi 1.5 through holes at intervals of 45 degrees.
An operation method of a clamp for processing the end face of a thin-wall long-cylinder part comprises the following steps:
step 4, pressing down a clamp clamping button, and clamping the upper base part in place; meanwhile, the positioning block of the axial positioning mechanism automatically returns;
step 6, finishing the workpiece processing, and manually pressing a clamp release button; opening the automatic door;
and 8, taking out the machined workpiece.
The utility model discloses relative prior art's beneficial effect:
the utility model discloses long section of thick bamboo class part end face machining anchor clamps of thin wall, simple structure has improved long section of thick bamboo class part end face machining efficiency of thin wall and processing qualification rate, has reduced work piece both ends end face runout, guarantees that surface quality satisfies the technological requirement to the processing demand of different size specification work pieces can be satisfied to this frock.
The utility model discloses long section of thick bamboo class part end face machining anchor clamps of thin wall adopts mechanical device to replace the operation of partial manual clamping, and semi-automatization's design has reduced staff's intensity of labour, and the two main shaft numerical control boring machines of cooperation are successfully applied to in the long section of thick bamboo class part end face machining of thin wall, have realized that section of thick bamboo class part once loads the card and accomplishes both sides end face machining, have improved the processing qualification rate and the machining efficiency of work piece, have reduced the work piece cost of doing over again to work piece processingquality uniformity obtains improving.
The utility model discloses well anchor clamps pass through cylinder drive and realize pressing from both sides tightly and loosen the function, guarantee the repeated positioning accuracy that the frock compressed tightly through the locating pin, installation, adjustment are simple, swift.
The utility model discloses anchor clamps are semi-automatic mode, mainly by cylinder, guide arm, self-lubricating guide pin bushing, cylinder connecting plate, support, axial workpiece installation positioning mechanism, mounting plate, go up the base, down base, bottom plate, location copper sheathing, parts such as adjusting shim constitute.
The clamp is designed into an upper part and a lower part, namely a pressing plate part and a positioning seat part, wherein a pressing copper sleeve is embedded on the surface contacting with the workpiece, and an air outlet groove is processed on the surface of the copper sleeve, so that the clamping uniformity of the surface of the workpiece can be ensured; a compression amount adjusting gasket is arranged between the upper compression seat and the lower compression seat and can be used for adjusting the compression amount of the workpiece; the top pressing plate part is driven by the cylinder to move the upper pressing seat, the positioning mode adopts a mode that the guide rod slides in the guide sleeve, and the positioning precision is high.
The positioning copper bush is designed to be annular, the positioning copper bush is cut to form two semi-circles after being integrally machined, 6 air outlet grooves with the width of 4.1mm are uniformly machined on each semi-circle copper tile at intervals of 30 degrees, 6 stepped holes with the diameter of 9-5.5 are machined at intervals of 75 degrees, and 2 through holes with the diameter of 1.5 are machined at intervals of 45 degrees. The air outlet groove is machined on the positioning copper sleeve, so that the deformation of the workpiece is considered, the contact area between the positioning copper sleeve and the workpiece is increased as much as possible, and the workpiece is prevented from axial movement and rotation in the machining process under a small clamping force. 6 stepped holes phi 9-phi 5.5 are used for mounting screws to fix the positioning copper sleeve on the supporting seat. 2 through-holes of phi 1.5 are the ventholes of airtight detection, and it is in order to prevent that there is the smear metal to drop on the location copper sheathing in the course of working to increase airtight detection device to influence the positioning accuracy of work piece, fish tail work piece surface. When thin-wall cylinder parts with different dimensions are processed, only the positioning copper sleeve with the corresponding dimension needs to be replaced.
Meanwhile, in order to accurately control the magnitude of interference, 4 adjusting gaskets are additionally arranged on the contact surfaces of the upper base and the lower base, and the gaskets are designed into a set of 6 gaskets with the thickness difference of 0.05 mm. And (3) when the copper sleeve is turned and positioned, 4 gaskets with the maximum thickness are placed, the gaskets are taken down after turning is finished, and the gaskets with the specified thickness are installed according to the set interference. The two middle step holes are used for installing screw fixing gaskets, and the holes on the two sides are used for installing positioning pins, so that the repeated positioning precision of the upper part and the lower part of the clamp during clamping is ensured.
After the adjusting gasket is designed, the interference magnitude, namely the pressing force of the workpiece, can be accurately controlled, and the positioning copper tile can be reused after being detached. After the installation once more, the lathe work is turned again, and the magnitude of interference can be guaranteed by replacing the corresponding adjusting shim.
In order to ensure that the upper semicircle and the lower semicircle of the positioning copper sleeve are accurately closed when the clamp is clamped, 4 positioning pins are respectively designed on the bases on the two sides. When the clamp clamping button is started, the cylinder drives the upper base to descend, the positioning pin on the lower base correspondingly penetrates into the positioning hole of the upper base, then the clamp automatically clamps, the upper semicircle and the lower semicircle are prevented from relative dislocation when the positioning copper sleeve is closed, and therefore the positioning accuracy of a workpiece is guaranteed.
The utility model discloses long section of thick bamboo class part end face machining anchor clamps of thin wall, (1) uses the work piece excircle as the radial positioning benchmark to the work piece terminal surface is the axial positioning benchmark, has guaranteed that the location is accurate. (2) Through changing the positioning copper bush and the adjusting shim, the processing interchange of workpieces with different specifications and sizes can be realized. (3) The automatic clamping and loosening of the workpiece are realized by adopting a mode that the upper base is driven by the air cylinder, the pressing force is constant, the labor intensity of workers is reduced, the positioning mode adopts a mode that the guide rod slides in the guide sleeve, the positioning precision is high, the axial positioning block is controlled to stretch and retract by the axial positioning air cylinder, and the double-spindle numerical control boring machine can be matched to realize one-step clamping to complete the turning of end faces at two sides. (4) The compression amount is as follows: the size of the compression amount is controlled by controlling the thickness of the adjusting gasket, and the compression amount is adjustable within the range of (0.05-0.25) mm.
The utility model discloses long section of thick bamboo type part end face machining anchor clamps of thin wall has improved the processing qualification rate and the machining efficiency of the long section of thick bamboo type part of thin wall, has reduced the work piece cost of doing over again, and work piece processingquality uniformity is high, also provides the guarantee for the assembly quality of subassembly, and equipment operation is stable, has improved processingquality.
The utility model discloses long section of thick bamboo class part end face machining anchor clamps of thin wall are used with the cooperation of two main shafts numerical control boring machine, need fix a position the selection of the cooperation turning of copper sheathing and adjusting shim thickness after the installation of anchor clamps main part is accomplished, and its concrete work content is as follows.
(1) Turning of the positioning copper sleeve: and turning the positioning copper sleeve according to the outer diameter size of the workpiece and the tool identification standard, wherein the inner diameter of the workpiece needs to be turned to the size median difference as far as possible in order to meet the clamping requirements of workpieces with different outer diameter sizes. And (3) installing boring cutter bars on the main shafts on the two sides, installing an adjusting gasket with the thickness of 7mm between the upper base and the lower base of the clamp, clamping the clamp, and starting turning. After the turning is finished, an inside micrometer is used for measuring, and the device can be used when the technical requirements are met.
(2) Determination of thickness dimension of the adjusting shim: the size of the gasket is selected and adjusted according to the inner diameter size of the positioning copper sleeve, the workpiece is too loose due to too thick gasket, and the workpiece is easy to relatively rotate in the turning process, so that the machining precision is influenced; too thin a shim can result in a too tight fit of the workpiece, possibly deforming the workpiece. When a copper sleeve is positioned in a matching vehicle, an adjusting gasket with the maximum thickness (thickness of a) is installed, firstly, the adjusting gasket with the thickness of (a-0.05) mm is selected for trial machining, the workpiece compression amount is 0.05mm, 10 workpieces are subjected to trial machining observation (the selected workpiece outer diameter size covers the whole tolerance zone range), and if a part of the workpieces are slightly deflected in the machining process, the workpiece compression amount needs to be increased to ensure that the workpiece is stably clamped in the machining process. And then, continuously selecting an adjusting gasket with the thickness of (a-0.1) mm for trial machining, and repeating the steps until the workpiece is stably clamped and does not deviate in the machining process, wherein after the machining is finished, the roundness of the workpiece meets the technical requirement and the workpiece is not deformed, namely the current gasket can meet the clamping requirement of the workpiece and can be used.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. All the simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a long section of thick bamboo class part end face machining anchor clamps of thin wall which characterized in that:
comprises a bottom plate (7) and a bracket (10),
the bracket (10) is fixed on the bottom plate (7) through a bolt;
the top of the bracket (10) is provided with a cylinder (5);
a self-lubricating guide sleeve (6) is arranged on the bracket (10);
the lower end of the cylinder pull rod is connected with an upper base (11); four guide rods (4) are arranged on the upper base (11);
the guide rod (4) penetrates through the self-lubricating guide sleeve (6); the lower base (13) is fixed at the bottom of the bracket (10) through bolts;
the positioning copper sleeve (9) is fixed on the upper base (11) and the lower base (13) through screws;
4 adjusting gaskets (12) are arranged on the contact surfaces of the upper base and the lower base;
the axial positioning cylinder (1) is fixed on the bracket (10) through a cylinder connecting plate (3);
an axial positioning block (8) is arranged at the front end of the piston rod of the axial positioning cylinder; the axial positioning cylinder drives the axial positioning block (8) to axially move;
four positioning pins are arranged on two sides of the lower base, and four positioning holes (2) are arranged on two sides of the upper base.
2. The end face machining clamp for the thin-wall long-cylinder part as claimed in claim 1, wherein:
the axis of the self-lubricating guide sleeve (6) is arranged along the vertical direction.
3. The end face machining clamp for the thin-wall long-cylinder part as claimed in claim 1, wherein:
the center line of the axial positioning cylinder (1) is superposed with the center line of the positioning copper sleeve (9).
4. The end face machining clamp for the thin-wall long-cylinder part as claimed in claim 1, wherein:
the positioning copper sleeve (9) is uniformly provided with 6 air outlet grooves with the width of 4.1mm at intervals of 30 degrees, 6 phi 9-phi 5.5 stepped holes at intervals of 75 degrees and 2 phi 1.5 through holes at intervals of 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023037901.8U CN214291888U (en) | 2020-12-16 | 2020-12-16 | Thin-wall long-cylinder part end face machining clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023037901.8U CN214291888U (en) | 2020-12-16 | 2020-12-16 | Thin-wall long-cylinder part end face machining clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214291888U true CN214291888U (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023037901.8U Active CN214291888U (en) | 2020-12-16 | 2020-12-16 | Thin-wall long-cylinder part end face machining clamp |
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| CN (1) | CN214291888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU216823U1 (en) * | 2022-10-28 | 2023-03-02 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тульский государственный университет" (ТулГУ) | DEVICE FOR BASED ON LONG-DIMENSIONAL CASING THIN-WALLED BLANK |
-
2020
- 2020-12-16 CN CN202023037901.8U patent/CN214291888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU216823U1 (en) * | 2022-10-28 | 2023-03-02 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тульский государственный университет" (ТулГУ) | DEVICE FOR BASED ON LONG-DIMENSIONAL CASING THIN-WALLED BLANK |
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