CN210549955U - Clamping device for grinding screw tap - Google Patents
Clamping device for grinding screw tap Download PDFInfo
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- CN210549955U CN210549955U CN201921339792.XU CN201921339792U CN210549955U CN 210549955 U CN210549955 U CN 210549955U CN 201921339792 U CN201921339792 U CN 201921339792U CN 210549955 U CN210549955 U CN 210549955U
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- air inlet
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- cylinder
- groove
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Abstract
The utility model discloses a clamping device for grinding screw taps, which comprises a shell and a slide rail arranged on the inner wall of the shell, a group of symmetrical clamping arms are arranged on the slide rail, concave racks are arranged at the bottom ends of the clamping arms, a group of symmetrical duplicate gears are arranged below the concave rack, the lower gears of the duplicate gears are matched with the concave rack, a rack plate is arranged between the duplicate gears, two side walls of the rack plate are provided with symmetrical convex racks, the convex rack is respectively matched with the upper gears of the two duplicate gears, the lower end of the rack plate is connected with the piston rod of the cylinder, the cylinder is divided into an upper cavity and a lower cavity by a piston, the piston is connected with a piston rod, the upper cavity part and the lower cavity part of the cylinder are respectively provided with a force application air inlet and a force unloading air inlet, and the force adding air inlet and the force discharging air inlet are connected with a pneumatic control valve through pneumatic pipelines. The utility model discloses it is convenient to use, can be to screw tap automatic clamping and uninstallation.
Description
Technical Field
The utility model particularly relates to a clamping device for screw tap grinding.
Background
The machine tool clamp can ensure the machining quality, improve the production efficiency, reduce the labor intensity and lower the overhigh requirement on the technology of workers, and is one of important devices which are indispensable in the production process. With the development of industry and science and technology, the automation degree is continuously improved, parts with different specifications and shapes need to be processed, and correspondingly, equipment is required to be provided with clamps with different shapes.
The screw tap is a common tool for machining threads, the square tail of the screw tap needs to be clamped to grind the edge part of the screw tap in the production process of the screw tap, the screw tap is provided with multiple precision screw taps, and in the clamping process, the square tail of the multiple screw taps is easy to damage due to uncontrollable manpower or is not clamped due to insufficient pressure, and dislocation occurs in grinding. Therefore, an automatic clamping device is provided, the insertion of the screw tap can be automatically sensed, and the square tail of the screw tap is clamped through a pneumatic control device, so that manual clamping is replaced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art and provides a clamping device for grinding screw taps,
a clamping device for grinding a screw tap comprises a shell and a slide rail arranged on the inner wall of the shell, wherein a group of symmetrical clamping arms are arranged on the slide rail, the bottom ends of the clamping arms are provided with concave racks, a group of symmetrical duplicate gears is arranged below the concave racks, the lower gears of the duplicate gears are all matched with the concave racks, a rack plate is arranged between the duplicate gears, two side walls of the rack plate are provided with symmetrical convex racks which are respectively matched with the upper gears of the two duplicate gears, the lower end of the rack plate is connected with a piston rod of the cylinder, the cylinder is divided into an upper cavity and a lower cavity by a piston, the piston is connected with a piston rod, the upper cavity part and the lower cavity part of the cylinder are respectively provided with a force application air inlet and a force unloading air inlet, and the force adding air inlet and the force discharging air inlet are connected with a pneumatic control valve through pneumatic pipelines.
In order to better realize the function of automatic clamping, preferably, the inner wall of the jaw of the clamping arm is provided with a groove, a self-locking sensing assembly is arranged in the groove and comprises a wedge-shaped sliding block and a return spring for connecting the wedge-shaped sliding block with the groove, a contact nail is arranged on the side wall, facing the groove, of the wedge-shaped sliding block, and a contact sensor corresponding to the contact nail is arranged on the groove.
Preferably, the contact sensor is connected to the pneumatic control valve.
Preferably, the bottom wall of the cylinder is connected with the bottom wall of the shell.
Has the advantages that:
the utility model is simple in operation, only need insert the centre gripping mouth with the screw tap during clamping screw tap, the sliding back contact nail of wedge slider atress contacts with the contact inductor, with signal transmission to pneumatic control valve, pneumatic control valve will drive gaseous input afterburning air inlet and promote the piston downstream, and the rack board is driven downstream and drives duplicate gear and drives the tight screw tap of centre gripping arm clamp. The whole clamping process does not need human intervention, the clamping is completed in one step, and the force application and the force unloading can be controlled by the parameters preset by the pneumatic control valve, so that the requirement of automatic production is met.
Drawings
FIG. 1 is a schematic structural view of a clamping device for tap grinding;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a partial enlarged view of portion B of FIG. 1;
in the figure: 1. the device comprises a shell, 2, a sliding rail, 3, a clamping arm, 4, a concave rack, 5, a duplicate gear, 6, a lower gear, 7, a rack plate, 8, a convex rack, 9, an upper gear, 10, a piston rod, 11, a cylinder, 12, a piston, 13, an applied force air inlet, 14, a force unloading air inlet, 15, a pneumatic control valve, 16, a groove, 17, a wedge-shaped sliding block, 18, a reset spring, 19, a contact nail, 20 and a contact inductor.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
As shown in fig. 1-3, the present invention aims to solve the above deficiencies of the prior art, and provides a clamping device for grinding a screw tap, which comprises a housing 1 and a slide rail 2 arranged on the inner wall of the housing, wherein a set of symmetrical clamping arms 3 are mounted on the slide rail 2, concave racks 4 are respectively arranged at the bottom ends of the clamping arms 3, a set of symmetrical dual gears 5 are respectively arranged below the concave racks 4, lower gears 6 of the dual gears 5 are respectively matched with the concave racks 4, a rack plate 7 is arranged between the dual gears 5, two side walls of the rack plate 7 are respectively provided with symmetrical convex racks 8, the convex racks 8 are respectively matched with upper gears 9 of the two dual gears 5, the lower ends of the rack plates 8 are connected with a piston rod 10 of a cylinder 11, the cylinder 11 is divided into an upper cavity and a lower cavity by a piston 12, the piston is connected with the piston rod, an upper cavity part and a lower cavity part of the cylinder are respectively provided with a force application air inlet 13 and a force unloading air inlet 14, and the force application air inlet 13 and the force unloading air inlet 14 are both connected with a pneumatic control valve 15 through pneumatic pipelines; the bottom wall of the cylinder 11 is connected with the bottom wall of the shell 1.
A groove 16 is formed in the inner wall of a jaw of the clamping arm, a self-locking sensing assembly is arranged in the groove 16 and comprises a wedge-shaped sliding block 17 and a return spring 18 for connecting the wedge-shaped sliding block 17 with the groove 16, a contact nail 19 is arranged on the side wall of the wedge-shaped sliding block facing the groove, and a contact sensor 20 corresponding to the contact nail is arranged on the groove; the contact sensor 20 is connected to the pneumatic control valve 15.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A clamping device for grinding a screw tap is characterized by comprising a shell and a slide rail arranged on the inner wall of the shell, a group of symmetrical clamping arms are arranged on the slide rail, concave racks are arranged at the bottom ends of the clamping arms, a group of symmetrical duplicate gears are arranged below the concave rack, the lower gears of the duplicate gears are matched with the concave rack, a rack plate is arranged between the duplicate gears, two side walls of the rack plate are provided with symmetrical convex racks, the convex rack is respectively matched with the upper gears of the two duplicate gears, the lower end of the rack plate is connected with the piston rod of the cylinder, the cylinder is divided into an upper cavity and a lower cavity by a piston, the piston is connected with a piston rod, the upper cavity part and the lower cavity part of the cylinder are respectively provided with a force application air inlet and a force unloading air inlet, and the force adding air inlet and the force discharging air inlet are connected with a pneumatic control valve through pneumatic pipelines.
2. The clamping device for grinding the screw tap according to claim 1, wherein a groove is formed in the inner wall of a jaw of the clamping arm, a self-locking sensing assembly is arranged in the groove and comprises a wedge-shaped sliding block and a return spring for connecting the wedge-shaped sliding block with the groove, a contact nail is arranged on the side wall, facing the groove, of the wedge-shaped sliding block, and a contact sensor corresponding to the contact nail is arranged on the groove.
3. A holder for a tap grinding apparatus as claimed in claim 2, wherein said contact sensor is connected to a pneumatically controlled valve.
4. A holder for a tap grinding tool as claimed in claim 1, wherein the bottom wall of the cylinder is connected to the bottom wall of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921339792.XU CN210549955U (en) | 2019-08-19 | 2019-08-19 | Clamping device for grinding screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921339792.XU CN210549955U (en) | 2019-08-19 | 2019-08-19 | Clamping device for grinding screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210549955U true CN210549955U (en) | 2020-05-19 |
Family
ID=70669137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921339792.XU Active CN210549955U (en) | 2019-08-19 | 2019-08-19 | Clamping device for grinding screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210549955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328565A (en) * | 2019-08-19 | 2019-10-15 | 丹阳河工工具有限公司 | A kind of clamping device for screw tap grinding |
-
2019
- 2019-08-19 CN CN201921339792.XU patent/CN210549955U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328565A (en) * | 2019-08-19 | 2019-10-15 | 丹阳河工工具有限公司 | A kind of clamping device for screw tap grinding |
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