CN215357243U - Oblique saw carousel positioning mechanism - Google Patents
Oblique saw carousel positioning mechanism Download PDFInfo
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- CN215357243U CN215357243U CN202121409996.3U CN202121409996U CN215357243U CN 215357243 U CN215357243 U CN 215357243U CN 202121409996 U CN202121409996 U CN 202121409996U CN 215357243 U CN215357243 U CN 215357243U
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- push rod
- rotary table
- saw
- locking
- disc seat
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Abstract
The utility model provides a rotary table positioning mechanism of a miter saw, wherein a rotary table of the miter saw is pivoted on a saw disc seat, a miter saw body is arranged on the rotary table, and the miter saw body rotates relative to the saw disc seat along with the rotary table; the push arm is fixedly connected to the rotary table and horizontally extends out of the rotary table, a supporting block is fixedly arranged at the tail end of the push arm, a push rod is arranged in the supporting block in a sliding mode, and the head of the push rod can be abutted against the circumferential side wall of the saw disc seat by pushing the push rod along the radial direction of the saw disc seat so as to position the rotary table and the saw disc seat; the retaining member for lock the push rod in the backup pad, the retaining member includes briquetting and eccentric rod, sets up the locking chamber along the direction of perpendicular to push rod in the backup pad, and movable installation is in the locking intracavity and is located the top of push rod about the briquetting, and the root of eccentric rod hinges in the locking intracavity and the tail end of eccentric rod stretches out the locking chamber and forms handle portion eccentrically, and rotatory handle portion can make the eccentric rod compress tightly the briquetting, the briquetting compresses tightly the push rod. The utility model has good positioning reliability on the turntable.
Description
Technical Field
The utility model belongs to the technical field of cutting tools, and particularly relates to a positioning mechanism for a rotary table of a miter saw.
Background
The oblique cutting saw is a tool for oblique cutting or angle cutting, has wide application and can flexibly realize cutting in different shapes.
When the oblique cutting saw is used, the rotating disc needs to be rotated, so that the saw body on the rotating disc rotates relative to the base to change the cutting angle. After the rotary disc rotates, the rotary disc needs to be reliably positioned in the angle direction, and the stability and the continuity of the cutting of the saw body are guaranteed.
The existing turntable positioning mechanism usually utilizes the pressing force of an eccentric block to realize relative fixation between a turntable and a base, for example, patent document of publication No. CN208991873U discloses a miter saw locking device, which comprises a mandril, a positioning plate and a locking rod, wherein one end of the mandril is fixed on a workbench, the other end of the mandril is connected with a mandril handle, the mandril handle is provided with a locking pin, the locking pin passes through the mandril handle and is detachably fixed in the workbench after being abutted against the surface of the positioning plate, the positioning plate is detachably arranged in the workbench, the bottom of the positioning plate is detachably provided with an angle positioning block, a positioning groove matched with the angle positioning block is arranged on the workbench base, one end of the locking rod is connected with a headstock, the other end of the locking rod is detachably connected with an eccentric wheel, and the eccentric wheel is detachably connected with a locking handle. The oblique cutting saw head is locked and positioned through the locking rod, the workbench is locked through the positioning plate and the ejector rod, the structure is simple, the operation is convenient and safe, the workbench can be fixed at a designated angle according to requirements, and the working efficiency is improved. However, the locking device has many parts and a complicated structure, and since the rotation direction of the locking handle 20 is parallel to the axial direction of the locking rod 2, the eccentric 7 is easily subjected to the reverse acting force of the locking rod 2 to spin under the vibration condition, so that the pressing action of the eccentric 7 is ineffective, the turntable may shake relative to the base, and the stability and the continuity of the operation of the miter saw are affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a positioning mechanism for a rotary table of a miter saw, which has good locking and positioning effects of the rotary table and is not easy to shake, so that the miter saw has good working stability and continuity.
The utility model provides the following technical scheme:
a miter saw turntable positioning mechanism, comprising:
a saw disc seat;
the rotary table is pivoted on the saw disc seat, a miter saw body is arranged on the rotary table, and the miter saw body rotates relative to the saw disc seat along with the rotary table;
the pushing arm is fixedly connected to the rotary table and horizontally extends out of the rotary table, a supporting block is fixedly installed at the tail end of the pushing arm, a push rod is installed in the supporting block in a sliding mode, and the head of the push rod can be abutted to the circumferential side wall of the saw disc seat by pushing the push rod along the radial direction of the saw disc seat so as to position the rotary table and the saw disc seat;
the retaining member for with the push rod locking in the backup pad, the retaining member includes briquetting and eccentric bar, follow the perpendicular to in the backup pad the direction of push rod sets up the locking chamber, the briquetting install in movably from top to bottom in the locking chamber just be located the top of push rod, the root of eccentric bar articulate eccentrically in the tail end of locking intracavity and eccentric bar stretches out locking chamber and formation handle portion, and it is rotatory handle portion can make the eccentric bar compresses tightly the briquetting compresses tightly the push rod.
Preferably, the bottom in locking chamber sets up the first constant head tank that is used for fixing a position the push rod, the bottom of briquetting is equipped with the second constant head tank that is used for fixing a position the push rod, and the briquetting compresses tightly during the push rod, the push rod hugs closely first constant head tank with the second constant head tank.
Preferably, spring grooves are formed in the bottom of the locking cavity and on the left side and the right side of the first positioning groove respectively, compression springs are installed in the spring grooves, and the tops of the compression springs are abutted to the pressing block.
Preferably, the top of the pressing block is provided with an arc-shaped abutting groove, and the far shaft side of the eccentric rod is pressed into the abutting groove to lock the push rod.
Preferably, the support block is further provided with a guide groove extending in the vertical direction, the left side and the right side of the pressing block are respectively provided with a guide part matched with the guide groove, and the guide parts slide along the guide groove to guide the up-and-down movement of the pressing block.
Preferably, the pushing arm is provided with an avoiding cavity communicated with the locking cavity right above the locking cavity, and the handle part of the eccentric rod can rotate in the avoiding cavity.
Furthermore, a cushion block is arranged at the front end of the push rod, a plate spring is arranged on the side wall of the cushion block, and the plate spring is tightly attached to the saw disc seat.
Preferably, the top of the cushion block is provided with a top wall bent towards the upper part of the saw disc seat, the top wall is printed with an arrow used for indicating the relative angle between the rotary disc and the saw disc seat, and the arrow points to the scale marks on the saw disc seat.
The utility model has the beneficial effects that:
according to the utility model, the supporting block is fixedly arranged on the push arm, the push rod is slidably arranged in the supporting block, the locking part is arranged in the supporting block, and the locking part locks the push rod along the radial direction of the push rod, so that the front end of the push rod is tightly propped against the saw disc seat, thereby locking and positioning the turntable and the saw disc seat, and facilitating the oblique cutting operation of the oblique cutting saw. The utility model has simple structure, convenient operation and good locking effect.
The locking cavity is arranged in the supporting block, the eccentric rod and the pressing block are arranged in the locking cavity, the pressing block can be downwards extruded by rotating the eccentric rod, and the pressing block is tightly abutted against the push rod, so that the push rod and the supporting block are locked, and the push rod is prevented from moving back and forth.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic top view of a push rod mounting structure embodying the present invention;
FIG. 3 is a schematic front view of the present invention;
fig. 4 is a schematic sectional view of a portion a-a in fig. 3.
Labeled as: 1. a saw disc seat; 2. a turntable; 3. a push arm; 4. scale lines; 5. a support block; 6. a push rod; 7. cushion blocks; 8. a plate spring; 9. a top wall; 10. an arrow; 11. briquetting; 12. an eccentric rod; 13. a locking cavity; 14. a first positioning groove; 15. a second positioning groove; 16. a hinge shaft; 17. a handle portion; 18. a butting groove; 19. a spring slot; 20. a compression spring; 21. a guide groove; 22. a guide portion; 23. an avoidance cavity; 24. a handle is operated.
Detailed Description
As shown in fig. 1 and 2, the miter saw turntable positioning mechanism is used for locking and positioning a turntable 2 on a saw turntable seat 1. This positioning mechanism includes: the saw disc seat comprises a saw disc seat 1, a rotary disc 2, a push arm 3 and a locking piece.
The saw disc seat 1 is fixedly arranged on the workbench. The rotary table 2 is pivoted on the saw disc seat 1, the rotary table 2 and the saw disc seat 1 are coaxially installed, the oblique-cutting saw body is installed above the rotary table 2, and the oblique-cutting saw body can rotate relative to the saw disc seat 1 along with the rotary table 2. The edge of the saw disc seat 1 is printed with a circle of scale marks 4 for indicating the rotation angle of the turntable 2.
The push arm 3 is fixedly connected above the turntable 2 and horizontally extends outwards to the turntable 2, and the push arm 3 can transmit the thrust to the turntable 2 to rotate the turntable 2. The tail end of the push arm 3 is welded with a supporting block 5, a push rod 6 is installed in the supporting block 5 in a sliding mode, the push rod 6 is of a long-shaft structure, the push rod 6 is pushed along the radial direction of the saw disc seat 1, the head of the push rod 6 can abut against the circumferential side wall of the saw disc seat 1, and therefore the rotary disc 2 and the saw disc seat 1 are located.
As shown in fig. 2 and 3, a cushion block 7 is mounted at the front end of the push rod 6, a plate spring 8 is fixedly mounted on the front side wall of the cushion block 7, and the plate spring 8 protrudes towards one side of the saw disc base 1. Pressing the push rod 6 forward deforms the leaf spring 8 against the saw disc holder 1, thereby providing a reliable clamping force between the push rod 6 and the saw disc holder 1. The top of the cushion block 7 is provided with a top wall 9 bent towards the upper part of the saw disc seat 1, an arrow 10 used for indicating the relative angle of the rotary disc 2 and the saw disc seat 1 is printed on the top wall 9, and the arrow 10 points to the scale marks 4 on the saw disc seat 1, so that the reading can be observed quickly.
The locking member is used for locking the push rod 6 in the supporting block 5, as shown in fig. 4, the locking member includes a pressing block 11 and an eccentric rod 12, a locking cavity 13 is arranged in the supporting block 5 along a direction perpendicular to the push rod 6, the top of the locking cavity 13 is open, the pressing block 11 can be movably mounted in the locking cavity 13 up and down, the pressing block is located above the push rod 6 and can be tightly attached to the push rod 6, wherein a first positioning groove 14 used for positioning the push rod 6 is arranged at the bottom of the locking cavity 13, a second positioning groove 15 used for positioning the push rod 6 is arranged at the bottom of the pressing block 11, when the pressing block 11 presses the push rod 6, the push rod 6 is tightly attached to the first positioning groove 14 and the second positioning groove 15, the two positioning grooves increase the contact area between the push rod 6 and the pressing block 11 and the supporting block 5, so as to increase the friction force between the two positioning grooves, and enable the push rod 6 to be more stably locked on the supporting block 5.
A hinge shaft 16 is installed in the locking chamber 13, and the root of the eccentric rod 12 is eccentrically hinged on the hinge shaft 16, and the far shaft side of the eccentric rod can press the pressing block 11 downwards. The tail end of the eccentric rod 12 extends out of the locking cavity 13 to form a handle part 17, and the handle part 17 is rotated to enable the far shaft side of the eccentric rod 12 to press the pressing block 11, so that the pressing block 11 presses the push rod 6.
The top of the pressing block 11 is provided with an arc-shaped abutting groove 18, and the far-axis side of the eccentric rod 12 is pressed into the abutting groove 18 to lock the push rod 6, so that the eccentric rod 12 is more reliably meshed with the pressing block 11.
The bottom of locking chamber 13 still sets up spring groove 19 respectively in the left and right sides of first constant head tank, and installation compression spring 20 in the spring groove 19, compression spring 20's top butt briquetting 11, compression spring 20 applys the pressure towards eccentric rod 12 one side to briquetting 11, makes briquetting 11 support tight eccentric rod 12, prevents that eccentric rod 12 from appearing becoming flexible.
The supporting block 5 is also internally provided with a guide groove 21 extending along the up-down direction, the left side and the right side of the pressing block 11 are respectively provided with a guide part 22 matched with the guide groove 21, and the guide parts 22 slide along the guide groove 21 to guide the up-down movement of the pressing block 11, so that the pressing block 11 is prevented from deflecting in the downward movement process to press the push rod 6 in an unbalanced manner.
An avoiding cavity 23 which is communicated with the locking cavity from the right upper part of the locking cavity 13 is arranged on the push arm 3, and the handle part of the eccentric rod 12 can rotate in the avoiding cavity 23.
As shown in fig. 3, an operating handle 24 is installed at the tail end of the push rod 6 and used for pushing the push rod 6, and a plurality of anti-slip threads are arranged on the operating handle 24 along the outer wall of the circumference.
The working process of the positioning mechanism is as follows:
when the cutting angle of the oblique-cutting saw needs to be changed, the push rod 6 is pushed forwards firstly, the gasket 7 at the front end of the push rod 6 is enabled to be tightly abutted to the saw disc seat 1, then the eccentric rod 12 is pulled upwards, the pressing block 11 is enabled to be pressed against the push rod 6, the push rod 6 and the supporting block 5 are locked and fixed, then the operating handle 24 is held to rotate the rotary disc 2, the rotary disc 2 is rotated to correspond to the required cutting angle, and then the oblique-cutting saw is started to cut a workpiece.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a miter saw carousel positioning mechanism which characterized in that includes:
a saw disc seat;
the rotary table is pivoted on the saw disc seat, a miter saw body is arranged on the rotary table, and the miter saw body rotates relative to the saw disc seat along with the rotary table;
the pushing arm is fixedly connected to the rotary table and horizontally extends out of the rotary table, a supporting block is fixedly installed at the tail end of the pushing arm, a push rod is installed in the supporting block in a sliding mode, and the head of the push rod can be abutted to the circumferential side wall of the saw disc seat by pushing the push rod along the radial direction of the saw disc seat so as to position the rotary table and the saw disc seat;
the retaining member for with the push rod locking in the backup pad, the retaining member includes briquetting and eccentric bar, follow the perpendicular to in the backup pad the direction of push rod sets up the locking chamber, the briquetting install in movably from top to bottom in the locking chamber just be located the top of push rod, the root of eccentric bar articulate eccentrically in the tail end of locking intracavity and eccentric bar stretches out locking chamber and formation handle portion, and it is rotatory handle portion can make the eccentric bar compresses tightly the briquetting, and then by the briquetting compresses tightly the push rod.
2. The miter saw rotary table positioning mechanism according to claim 1, wherein a first positioning groove for positioning a push rod is formed in the bottom of the locking cavity, a second positioning groove for positioning the push rod is formed in the bottom of the pressing block, and the push rod is tightly attached to the first positioning groove and the second positioning groove when the pressing block presses the push rod.
3. The miter saw turntable positioning mechanism according to claim 2, wherein spring grooves are further formed in the bottom of the locking cavity on the left side and the right side of the first positioning groove respectively, compression springs are mounted in the spring grooves, and the tops of the compression springs abut against the pressing block.
4. The rotary table positioning mechanism of a miter saw as claimed in claim 2, wherein an arc-shaped abutting groove is formed at the top of the pressing block, and the far shaft side of the eccentric rod is pressed into the abutting groove to lock the push rod.
5. The miter saw rotary table positioning mechanism according to claim 1, wherein a guide groove extending in an up-down direction is further provided in the support block, guide portions matching with the guide groove are provided on left and right sides of the press block, respectively, and the guide portions slide along the guide groove to guide up-and-down movement of the press block.
6. The rotary table positioning mechanism of a miter saw as claimed in claim 1, wherein the push arm is provided with an avoiding cavity which is communicated with the locking cavity from the position right above the locking cavity, and the handle part of the eccentric rod can rotate in the avoiding cavity.
7. The miter saw rotary table positioning mechanism according to any of claims 1 to 6, wherein a cushion block is mounted at the front end of the push rod, and a plate spring is mounted on the side wall of the cushion block and clings to the saw table seat.
8. The miter saw rotary table positioning mechanism of claim 7, wherein the top of the pad block has a top wall bent above the saw table base, and an arrow indicating the rotation angle of the rotary table is printed on the top wall and points to the scale marks on the saw table base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121409996.3U CN215357243U (en) | 2021-06-23 | 2021-06-23 | Oblique saw carousel positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121409996.3U CN215357243U (en) | 2021-06-23 | 2021-06-23 | Oblique saw carousel positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215357243U true CN215357243U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121409996.3U Active CN215357243U (en) | 2021-06-23 | 2021-06-23 | Oblique saw carousel positioning mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN215357243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116475492A (en) * | 2023-03-07 | 2023-07-25 | 金华市亚虎工具有限公司 | Oblique fracture saw installation workbench |
-
2021
- 2021-06-23 CN CN202121409996.3U patent/CN215357243U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116475492A (en) * | 2023-03-07 | 2023-07-25 | 金华市亚虎工具有限公司 | Oblique fracture saw installation workbench |
| CN116475492B (en) * | 2023-03-07 | 2024-01-09 | 金华市亚虎工具有限公司 | Oblique fracture saw installation workbench |
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