CN212095404U - Clamp apparatus - Google Patents
Clamp apparatus Download PDFInfo
- Publication number
- CN212095404U CN212095404U CN202020161356.4U CN202020161356U CN212095404U CN 212095404 U CN212095404 U CN 212095404U CN 202020161356 U CN202020161356 U CN 202020161356U CN 212095404 U CN212095404 U CN 212095404U
- Authority
- CN
- China
- Prior art keywords
- hole
- workpiece
- positioning column
- clamp
- positioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model relates to a fixture, fixture includes: the base is provided with a slide hole and is used for bearing a workpiece. The positioning column is arranged in the sliding hole in a sliding mode, a material discharging through hole which extends along the axial direction of the positioning column and is communicated with the outside is formed in the positioning column, and the material discharging through hole is used for being matched with a part to be machined of a workpiece. An elastic member; the elastic piece is positioned in the sliding hole and sleeved on the positioning column, and can apply pressure to the positioning column. And waste materials generated at the part to be processed of the workpiece are discharged to the outside from the discharge through hole. Cutting fluid and waste material both do not have the chance with the elastic component contact, and cutting fluid and waste material direct discharge are to the external world, prevent that cutting fluid and waste material gathering from influencing its elasticity function on the surface of elastic component, guarantee that the portion of treating of work piece can be smoothly with the row's of reference column material through-hole cooperation, improve the precision, reliability and the efficiency of reference column to the work piece location to ensure the clamping precision and the reliability of anchor clamps use.
Description
Technical Field
The utility model relates to a mechanical tooling technical field especially relates to an anchor clamps.
Background
When a CNC (computerized numerical control) process is adopted for machining a hole structure on a die casting, the die casting needs to be positioned through an elastic positioning pin on a clamp, and then the clamp clamps a workpiece so as to facilitate machining. However, with the conventional fixture, cutting fluid and waste materials generated in the hole machining process gradually gather around the spring of the elastic positioning pin, so that the positioning and clamping of the fixture are affected, and finally the machining precision of the hole on the subsequent die casting is affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem how to improve the clamping precision and the reliability of anchor clamps use.
A clamp for clamping a workpiece, comprising:
the base is provided with a sliding hole and is used for bearing a workpiece;
the positioning column is arranged in the sliding hole in a sliding mode, a material discharging through hole which extends along the axial direction of the positioning column and is communicated with the outside is formed in the positioning column, and the material discharging through hole is used for being matched with a part to be machined of a workpiece; and
an elastic member; the elastic piece is positioned in the sliding hole and sleeved on the positioning column, and can apply abutting force to the positioning column;
and waste materials generated at the part to be processed of the workpiece are discharged to the outside from the discharge through hole.
In one embodiment, the positioning column includes a main body portion and an extension portion, the main body portion has a limiting surface located at an end portion, the extension portion is disposed on the limiting surface and protrudes relative to the limiting surface, the discharge through hole is located on the main body portion and the extension portion, and the elastic member is sleeved on the extension portion and can be abutted against the limiting surface.
In one embodiment, the slide hole comprises a first unit hole and a second unit hole which are communicated with each other, the caliber of the second unit hole is larger than that of the first unit hole, and the base is provided with a step surface at the communication position of the first unit hole and the second unit hole; the main part includes interconnect's location section and direction section, spacing face is located the direction section, the cross section size of direction section is the biggest and connect the location section with extend between the section, the location section with first unit hole sliding fit, the direction section with second unit hole sliding fit and can with the step face supports and presses mutually, the elastic component holding is in the second unit hole.
In one embodiment, the discharge through hole comprises a positioning unit hole used for being matched with a part to be processed of a workpiece, and the cross section of the positioning unit hole is gradually increased along the central axis of the positioning column and in the direction away from the workpiece.
In one embodiment, the clamp further includes a locking plate connected to the base, the locking plate is provided with an installation hole for communicating the outside with the sliding hole, the positioning column is inserted into the installation hole, and the elastic member is pressed between the locking plate and the positioning column.
In one embodiment, the locking plate is bolted to the base.
In one embodiment, the resilient member comprises a cylindrical spring.
In one embodiment, the workpiece pressing device further comprises a support and a pressing assembly, wherein the support is connected with the base, and the pressing assembly is arranged on the support and is used for pressing a workpiece on the base.
In one embodiment, the pressing assembly comprises an air cylinder and a pressing rod, a cylinder barrel of the air cylinder is fixed on the support, one end of the pressing rod is connected with a piston rod of the air cylinder, and the other end of the pressing rod is used for abutting against a workpiece.
In one embodiment, the compressing assembly further comprises a rotating frame, one end of the rotating frame is rotatably connected with the cylinder barrel of the air cylinder, the other end of the rotating frame is rotatably connected with the middle of the pressing rod, and one end of the pressing rod is rotatably connected with the piston rod of the air cylinder.
The utility model discloses a technical effect of an embodiment is: because establish the elastic component cover on the reference column, discharge's in-process in the row's material through-hole of reference column is followed to cutting fluid and waste material, both do not have the chance with the elastic component contact between cutting fluid and the waste material, cutting fluid and waste material directly discharge to the external world, prevent that cutting fluid and waste material gathering from influencing its elastic function on the surface of elastic component, guarantee that the portion of treating the work piece can smoothly cooperate with the row's material through-hole of reference column, improve the precision, reliability and the efficiency of reference column to the work piece location, thereby guarantee the clamping precision and the reliability of anchor clamps use.
Drawings
Fig. 1 is a schematic perspective view of a clamp according to an embodiment;
FIG. 2 is a schematic cross-sectional view of the fixture of FIG. 1;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
FIG. 4 is a schematic cross-sectional view of a positioning post of the fixture shown in FIG. 1;
fig. 5 is a schematic perspective view of a positioning post in the fixture shown in fig. 1.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1, fig. 2 and fig. 3, the clamp 10 according to an embodiment of the present invention is used for a workpiece 20, the workpiece 20 is provided with a portion to be processed 21, the portion to be processed 21 protrudes by a certain length relative to other portions of the workpiece 20, and after the clamp 10 clamps the workpiece 20, a through hole 22 is processed on the portion to be processed 21 by a CNC machining process. The clamping apparatus 10 includes a bracket 400, a base 100, a positioning column 200, an elastic member 300, and a pressing assembly 500.
In some embodiments, the bracket 400 is connected to the base 100, the bracket 400 includes a bottom plate 410 and two side plates 420, the bottom plate 410 is disposed horizontally, the side plates 420 are disposed vertically perpendicular to the bottom plate 410, and the two side plates 420 are disposed on the same side of the bottom plate 410 and are parallel to each other. The lower end of the side plate 420 is connected to the bottom plate 410, and the upper end of the side plate 420 is connected to the base 100 such that the base 100 spans above the bottom plate 410. The workpiece 20 is supported on a base 100, and the base 100 is provided with a slide hole 110 penetrating through upper and lower surfaces thereof.
The pressing assembly 500 comprises an air cylinder 510 and a pressing rod 520, wherein a cylinder barrel 511 of the air cylinder 510 is fixed on the bottom plate 410, one end of the pressing rod 520 is connected with a piston rod 512 of the air cylinder 510, and the other end of the pressing rod 520 is used for pressing the workpiece 20. When the piston rod 512 of the cylinder 510 moves upward so that the other end of the pressing rod 520 is away from the workpiece 20, the workpiece 20 can be placed on the base 100 or the workpiece 20 can be unloaded from the base 100. When the piston rod 512 of the air cylinder 510 moves downwards, the other end of the pressing rod 520 is close to press against the workpiece 20, so that the workpiece 20 is clamped between the pressing rod 520 and the base 100, and the workpiece 20 is clamped by the clamp 10.
In some embodiments, the pressing assembly 500 further includes a rotating frame 530, a lower end of the rotating frame 530 is rotatably connected to the cylinder 511 of the air cylinder 510, an upper end of the rotating frame 530 is rotatably connected to a middle portion of the pressing rod 520, and one end of the pressing rod 520 is rotatably connected to the piston rod 512 of the air cylinder 510. Thus, the pressing rod 520 can act like a lever, the pressing rod 520 can move left like a seesaw by taking the rotating frame 530 as a fulcrum, and the pressing rod 520, the rotating frame 530 and the piston rod 512 of the cylinder 510 form a link mechanism. When the piston rod 512 of the cylinder 510 moves upward, the end of the pressing rod 520 connected to the piston rod 512 moves from bottom to top, and the end of the pressing rod 520 abutted to the workpiece 20 moves from top to bottom until abutting against the workpiece 20, so as to clamp the workpiece 20, and meanwhile, the rotating frame 530 gradually deflects to a vertical state toward the base 100. When the piston rod 512 of the cylinder 510 moves downward, the end of the pressing rod 520 connected with the piston rod 512 moves from top to bottom, and the end of the pressing rod 520 abutted with the workpiece 20 moves from bottom to top and is far away from the workpiece 20, so as to realize the loading or unloading of the workpiece 20 on the base 100, and simultaneously, the rotating frame 530 gradually deflects from the vertical state towards the piston rod 512 of the cylinder 510.
Referring to fig. 3, 4 and 5, in some embodiments, the positioning column 200 is slidably disposed in the sliding hole 110, a material discharging through hole 240 extending along an axial direction of the positioning column 200 is formed on the positioning column 200, and two ends of the material discharging through hole 240 are both communicated with the outside. When the workpiece 20 is carried on the base 100, the part to be processed 21 of the workpiece 20 is matched with the discharge through hole 240, that is, the part to be processed 21 of the workpiece 20 is inserted into the discharge through hole 240, so that the accurate positioning of the positioning column 200 on the workpiece 20 can be realized.
The positioning column 200 includes a main body 201 and an extension 230, the main body 201 has a limiting surface 221 at an end thereof, and the extension 230 is disposed on the limiting surface 221 and protrudes a certain length relative to the limiting surface 221 in an axial direction of the main body 201. Of course, the discharge through-hole 240 is located on both the main body portion 201 and the extension 230. The main body portion 201 comprises a positioning section 210 and a guiding section 220 which are connected with each other, the positioning section 210, the guiding section 220 and the extending section 230 can be all in the shape of a cylindrical rod, the guiding section 220 is arranged in the center, namely the upper end of the guiding section 220 is connected with the positioning section 210, the lower end of the guiding section 220 is connected with the extending section 230, the cross section of the guiding section 220 is largest, the cross section of the positioning section 210 is second, and the cross section of the extending section 230 is smallest. The discharge through hole 240 further includes a positioning unit hole 241, the positioning unit hole 241 is disposed on the positioning section 210, the positioning unit hole 241 is a tapered hole, and the cross-sectional size of the positioning unit hole 241 gradually increases along the central axis of the positioning column 200 and in a direction away from the workpiece 20, i.e., in a downward direction. Through the arrangement, the part to be processed 21 of the workpiece 20 can be smoothly matched with the positioning unit hole 241, and the positioning column 200 is ensured to quickly position the workpiece 20.
The slide hole 110 includes a first unit hole 111 and a second unit hole 112, a diameter of the second unit hole 112 is larger than a diameter of the first unit hole 111, the first unit hole 111 and the second unit hole 112 are communicated with each other, the first unit hole 111 is located at an upper portion of the base 100, and the second unit hole 112 is located at a lower portion of the base 100. The first unit hole 111 may have a size slightly larger than the diameter of the positioning section 210 so that the positioning section 210 and the first unit hole 111 can form a sliding fit relationship. Likewise, the second unit hole 112 may be sized slightly larger than the diameter of the guide section 220 so that the guide section 220 and the second unit hole 112 can form a slip fit relationship. The extension 230 is located in the second cell hole 112. In fact, the sliding hole 110 is a stepped hole, that is, the base 100 forms a stepped surface 120 at the communication between the first unit hole 111 and the second unit hole 112, and the stepped surface 120 is a top wall surface of the stepped hole.
The clamping apparatus 10 further includes a locking plate 430, the locking plate 430 may be fixed on the base 100 by means of bolts, a mounting hole 431 is formed in the locking plate 430, the mounting hole 431 communicates with the outside and the second unit hole 112, and the extension 230 may slide in the mounting hole 431 of the locking plate 430. The elastic member 300 may be a cylindrical spring, the elastic member 300 is located in the second unit hole 112 and sleeved on the extending section 230 of the positioning column 200, the upper end of the elastic member 300 abuts against the limiting surface 221 of the guiding section 220, and the lower end of the elastic member 300 abuts against the locking plate 430. By arranging the elastic piece 300, when the workpiece 20 exerts a pressing force on the positioning column 200 in the positioning process, the positioning column 200 moves downwards, and the elastic piece 300 is compressed to store energy; when the workpiece 20 is completely machined and unloaded, the elastic member 300 releases energy, so that the positioning column 200 moves upward and automatically resets. Meanwhile, in the process that the positioning column 200 moves upwards, the guide section 220 abuts against the step surface 120, and the limit distance of the upward movement of the positioning column 200 can be limited through the limit action of the step surface 120. By providing the locking plate 430 and bolting the locking plate 430 to the base 100, the positioning post 200 and the elastic member 300 can be smoothly assembled and disassembled in the sliding hole 110.
For the conventional fixture 10, the spring is directly abutted between the end of the positioning column 200 and the base 100, when the through hole 22 is processed on the portion 21 to be processed of the workpiece 20, the cutting fluid and the waste generated by the through hole 22 in the processing process are discharged through the discharge through hole 240 on the positioning column 200, and the discharged part of the cutting fluid and the waste are adhered to the spring, so that more cutting fluid and more waste are gradually gathered on the surface of the spring, thereby affecting the elastic function of the spring, causing the spring to have the function of 'suppressing' due to the elastic weakening setting loss elasticity, affecting the positioning effect of the positioning column 200, and affecting the clamping accuracy and reliability of the fixture 10.
In the fixture 10 in the above embodiment, the elastic member 300 is directly sleeved on the surface of the extending section 230 of the positioning column 200, and in the process of discharging the cutting fluid and the waste from the discharging through hole 240 of the positioning column 200, the cutting fluid and the waste are directly discharged outside the base 100, and there is no chance that the cutting fluid and the waste contact the elastic member 300, that is, the cutting fluid and the waste cannot be gathered on the surface of the elastic member 300 to affect the elastic function thereof, so that the portion to be processed 21 of the workpiece 20 can be smoothly matched with the discharging through hole 240 of the positioning column 200, the precision, reliability and efficiency of positioning the workpiece 20 by the positioning column 200 are improved, and the clamping precision and reliability of the fixture 10 in the use process are ensured.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A clamp for clamping a workpiece, comprising:
the base is provided with a sliding hole and is used for bearing a workpiece;
the positioning column is arranged in the sliding hole in a sliding mode, a material discharging through hole which extends along the axial direction of the positioning column and is communicated with the outside is formed in the positioning column, and the material discharging through hole is used for being matched with a part to be machined of a workpiece; and
an elastic member; the elastic piece is positioned in the sliding hole and sleeved on the positioning column, and can apply abutting force to the positioning column;
and waste materials generated at the part to be processed of the workpiece are discharged to the outside from the discharge through hole.
2. The fixture according to claim 1, wherein the positioning post comprises a main body portion and an extension portion, the main body portion has a limiting surface located at an end portion, the extension portion is disposed on the limiting surface and protrudes relative to the limiting surface, the discharge through hole is located on the main body portion and the extension portion, and the elastic member is sleeved on the extension portion and can abut against the limiting surface.
3. The clamp of claim 2, wherein the slide hole includes a first unit hole and a second unit hole communicating with each other, the second unit hole having a larger caliber than that of the first unit hole, the base having a stepped surface where the first unit hole and the second unit hole communicate with each other; the main part includes interconnect's location section and direction section, spacing face is located the direction section, the cross section size of direction section is the biggest and connect the location section with extend between the section, the location section with first unit hole sliding fit, the direction section with second unit hole sliding fit and can with the step face supports and presses mutually, the elastic component holding is in the second unit hole.
4. The clamp of claim 1, wherein the discharge through hole comprises a positioning unit hole for cooperating with a portion to be machined of a workpiece, the positioning unit hole having a cross-sectional dimension that gradually increases along a central axis of the positioning post and in a direction away from the workpiece.
5. The clamp of claim 1, further comprising a locking plate connected to the base, wherein the locking plate is provided with a mounting hole for communicating the outside with the sliding hole, the positioning post is inserted into the mounting hole, and the elastic member is pressed between the locking plate and the positioning post.
6. The clamp of claim 5, wherein the locking plate is bolted to the base.
7. The clamp of claim 1, wherein the resilient member comprises a cylindrical spring.
8. The clamp of claim 1, further comprising a bracket coupled to the base and a hold-down assembly disposed on the bracket for holding down a workpiece on the base.
9. The clamp of claim 8, wherein the pressing assembly comprises an air cylinder and a pressing rod, a cylinder barrel of the air cylinder is fixed on the support, one end of the pressing rod is connected with a piston rod of the air cylinder, and the other end of the pressing rod is used for pressing a workpiece.
10. The clamp according to claim 9, wherein the compressing assembly further comprises a rotating frame, one end of the rotating frame is rotatably connected with the cylinder barrel of the cylinder, the other end of the rotating frame is rotatably connected with the middle part of the pressing rod, and one end of the pressing rod is rotatably connected with the piston rod of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020161356.4U CN212095404U (en) | 2020-02-11 | 2020-02-11 | Clamp apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020161356.4U CN212095404U (en) | 2020-02-11 | 2020-02-11 | Clamp apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212095404U true CN212095404U (en) | 2020-12-08 |
Family
ID=73627648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020161356.4U Active CN212095404U (en) | 2020-02-11 | 2020-02-11 | Clamp apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212095404U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719644A (en) * | 2020-12-15 | 2021-04-30 | 西安中科微精光子制造科技有限公司 | Thin workpiece tool clamp and laser processing device |
| CN113245958A (en) * | 2021-04-27 | 2021-08-13 | 东科克诺尔商用车制动技术有限公司 | Quick clamping device for rack piston grinding raceway clamp of steering engine |
-
2020
- 2020-02-11 CN CN202020161356.4U patent/CN212095404U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719644A (en) * | 2020-12-15 | 2021-04-30 | 西安中科微精光子制造科技有限公司 | Thin workpiece tool clamp and laser processing device |
| CN112719644B (en) * | 2020-12-15 | 2022-07-01 | 西安中科微精光子科技股份有限公司 | Thin workpiece tool clamp and laser processing device |
| CN113245958A (en) * | 2021-04-27 | 2021-08-13 | 东科克诺尔商用车制动技术有限公司 | Quick clamping device for rack piston grinding raceway clamp of steering engine |
| CN113245958B (en) * | 2021-04-27 | 2024-05-17 | 东科克诺尔商用车制动技术有限公司 | Quick clamping device for rack piston mill raceway of steering machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212095404U (en) | Clamp apparatus | |
| CN214393330U (en) | Tensioner for clamping thin-walled workpiece | |
| CN102248417B (en) | Multi-workpiece assembling counter gear groove cutting fixture | |
| EP3981546A1 (en) | Pneumatic clamp for plates with tilting jaws | |
| CN116786669A (en) | Stamping and molding integrated device for clutch production | |
| CN217096774U (en) | Machining mechanism capable of achieving rapid clamping and positioning | |
| CN214719996U (en) | Copper sheathing processing positioning mechanism that punches a hole | |
| CN211889165U (en) | Tool for machining inclined groove of eccentric shaft | |
| CN210908862U (en) | Piston pin press-fitting device | |
| CN208840298U (en) | The punching tool of thin-wall workpiece | |
| CN115673838A (en) | High-speed universal joint material loading fine positioning seat | |
| CN108705337B (en) | Clamping jig capable of automatically feeding | |
| CN109158910B (en) | Shell clamping tool | |
| CN212071130U (en) | Automobile engine frame processing mistake proofing frock | |
| CN215788193U (en) | Pressing type hole boring device | |
| CN212963264U (en) | Hole site detection mechanism of stamping die part | |
| CN214978635U (en) | Connecting rod bidirectional elastic clamping mechanism matched with manipulator feeding and discharging | |
| CN218312186U (en) | A quick clamping device for machining | |
| CN212192253U (en) | Numerical control lathe processingequipment | |
| CN220463021U (en) | Lathe tool for special-shaped binding clip of crimping pliers | |
| CN217571863U (en) | Machining clamp for drilling lever parts | |
| CN221019755U (en) | Tool for rough turning of workpiece surface | |
| CN217551864U (en) | Clamping seat for batch precision parts | |
| CN212122450U (en) | Linear shaft drilling and positioning tool | |
| CN219254177U (en) | Compressed pneumatic clamping jaw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230920 Address after: No. 48 Yangyonglingbei Street, Dalang Town, Dongguan City, Guangdong Province, 523000 Patentee after: Dongguan Anmeitai Technology Co.,Ltd. Address before: 523799 no.639 Meijing West Road, xiniupi Industrial Zone, Dalang Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN EVERWIN PRECISION TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |