CN214055240U - Center-dividing scribing device - Google Patents
Center-dividing scribing device Download PDFInfo
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- CN214055240U CN214055240U CN202023161927.3U CN202023161927U CN214055240U CN 214055240 U CN214055240 U CN 214055240U CN 202023161927 U CN202023161927 U CN 202023161927U CN 214055240 U CN214055240 U CN 214055240U
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Abstract
The utility model relates to a marking device in branch, including support, rack, slide caliper rule, cylinder straight-teeth gear, axis of rotation, scriber, antifriction bearing and the nut that has zero-bit and millimeter scale. The center-dividing marking device of the utility model has simple structure, simple operation and high efficiency, can quickly divide the center and mark the workpiece, and is suitable for large-batch processing and marking production; when the device is used, the requirement on the placing mode of the workpiece is not high, the workpiece does not need to be placed vertically, and only the scribing operation space is enough; the position of the central line can be determined by utilizing the relative position of the size of the workpiece without marking tools such as a reference platform, a jack and the like; the straight gear and the rack are high in meshing transmission precision, and the size of a workpiece can be indirectly measured by utilizing scale conversion.
Description
Technical Field
The utility model belongs to the technical field of the machining technique and specifically relates to a marking device in branch that material shaping such as casting, forging were made.
Background
Scribing is a first process in machining and is also a very important process, the machining position and machining allowance of a workpiece are determined by scribing, and meanwhile, whether the shape and the size of a workpiece blank accord with drawings or not is checked. When the blank material size is not enough and the material shortage condition exists, the material borrowing is carried out through marking, meanwhile, the loss caused by batch disqualification is avoided, and the method is widely applied to single piece or small batch processing production.
When the machining position and the machining allowance of the workpiece are determined by scribing, no machining allowance exists on one side of the workpiece due to reasons of insufficient blank material shortage size, heat treatment deformation and the like, and in order to enable machining allowances to exist on two sides of the workpiece, the machining position needs to be adjusted to the other side through scribing a center line so as to perform remediation. However, the existing center-dividing scribing technology has the following disadvantages: 1. the middle marking process needs a plurality of tools, including a reference platform, a sizing block, a jack, a height vernier caliper, a marking needle and the like; 2. the operation is not simple and convenient, the workpiece needs to be centered only in the vertical direction, sometimes the workpiece needs to be placed in a standing mode, and the position of the center line is determined by utilizing the upper position and the lower position of the centered dimension and calculating the height difference through the measurement of a height vernier caliper; 3. the work efficiency is low, and the batch scribing processing production progress is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the defects in the prior art, the center-dividing scribing device is provided.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a center-parting marking device, is used for the work piece, including support, rack and adaptation in the cylinder straight-teeth gear of rack, cylinder straight-teeth gear suit cover establish antifriction bearing's axis of rotation outside the cover, antifriction bearing arranges in between cylinder straight-teeth gear and the axis of rotation its linkage. The support is used for fixing other parts of the center marking device and plays a supporting role.
The rack include first rack and second rack, first rack and second rack symmetry assembly are in the support, move on the removal track in the support and mesh with the cylinder straight-teeth gear, fixed first slide caliper rule and the second slide caliper rule that are equipped with spacing work piece respectively on first rack and the second rack, first slide caliper rule and second slide caliper rule adopt central symmetry to set up. When the first rack and the second rack which are symmetrically assembled move, the displacements in opposite directions can be generated; the first caliper and the second caliper are equal in length, and the first caliper and the second caliper which are arranged in a centrosymmetric mode can be fixed to the two sides of the workpiece respectively; when the cylindrical straight gear is rotated, the first rack and the second rack can be driven to do linear motion with opposite displacement directions and equal distance, and the first caliper and the second caliper do the same motion with the first rack and the second rack.
The rotating shaft and the rolling bearing are assembled together in a support matched with the rotating shaft, and the lower end of the rotating shaft is fixedly connected with a scriber for determining the center of a workpiece. When the slide caliper moves, the tip end of the scriber is always positioned at the center of the clamping ends of the first caliper and the second caliper, and is used for determining the center of a workpiece and carrying out center division and scribing. The outer side or the inner side of the clamping section of the caliper clamps the inner side or the outer side of the workpiece, the center of the workpiece is determined by utilizing the principle that the scriber is always positioned at the center positions of the first caliper and the second caliper, the nut is screwed, the whole center dividing and scribing device is moved back and forth, the center line is scribed on the workpiece, and the size of the workpiece can be accurately measured through the millimeter scale on the caliper.
One end of the support is screwed with a nut, and the rack can be controlled to be fixed and moved by screwing and unscrewing the nut.
The first rack and the first caliper, and the second rack and the second caliper are perpendicular to each other in the vertical direction, so that the workpiece can be fixed without displacement when the racks are displaced.
The left side and the right side of the support are communicated to form a cavity for fixing the rack and the cylindrical straight gear, the upper end of the support is provided with a hollow groove communicated with the cavity, and the lower side of the support is provided with a through hole communicated with the cavity for fixing the rotating shaft and the rolling bearing. The cylindrical straight gear and the rack are in meshed transmission, and the modulus, the tooth number and the pressure angle of the cylindrical straight gear and the modulus and the tooth number of the rack are calculated through design, so that the transmission precision can reach 0.1mm, and the center division and the lineation can be accurately performed.
The first caliper and the second caliper are provided with zero positions and millimeter scales and used for clamping two sides of a workpiece and measuring the size of the workpiece.
The utility model discloses a when marking device in branch for work piece uses, including following step:
step one, adjusting zero position: firstly, loosening a nut, and aligning the zero positions of the first caliper and the second caliper with the tip end of the scriber by moving the first rack and the second rack, wherein the three points are positioned on the same straight line;
secondly, clamping the workpiece: after the first caliper and the second caliper adjust zero positions, the cylindrical straight gear is rotated to drive the first rack and the second rack to move, so that the clamping ends of the first caliper and the second caliper clamp two sides of a workpiece (or abut against the inner contour of the workpiece) respectively;
step three, fixing a rack: after the workpiece is clamped, the nut is screwed down to prevent the first rack and the second rack from moving;
fourthly, drawing a central line: after the rack is fixed, the centering and scribing device is moved back and forth along the contact edge of the workpiece and the caliper, so that the scriber can scribe a central line on the workpiece;
and fifthly, obtaining the size: and after the central line is drawn, the scale values of the first caliper and the second caliper are read, and then the size of the workpiece is obtained through calculation.
The utility model has the advantages that:
1. the center-dividing marking device of the utility model has simple structure, simple operation and high efficiency, can quickly divide the center and mark the workpiece, and is suitable for large-batch processing and marking production;
2. the center-dividing marking device of the utility model has low requirements on the placing mode of the workpiece in the using process, does not need to stand for vertical placement, and only needs enough marking operation space;
3. the center line marking device of the utility model does not need marking tools such as a reference platform and a jack, and can determine the position of the center line by utilizing the relative position of the size of the workpiece;
4. the utility model discloses a marking device in branch, straight-gear and rack toothing transmission precision are high, have the millimeter scale on the slide caliper rule, and work piece size is measured indirectly to usable scale transform.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the present invention in its initial position;
fig. 2 is a front view of the present invention in an initial position;
FIG. 3 is a perspective view of the present invention at an initial position;
fig. 4 is a schematic view of the present invention in operation;
fig. 5 is another schematic structural diagram of the present invention during operation.
Reference numbers in the figures: 1-bracket, 2-1-first rack, 3-1-second rack, 2-first caliper, 3-2-second caliper, 4-cylindrical spur gear, 5-transmission shaft, 6-scriber, 7-rolling bearing, 8-nut, 9-workpiece.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A center-parting marking device shown in fig. 1-4 is used for a workpiece 9 and comprises a bracket 1, a rack and a cylindrical spur gear 4 matched with the rack, wherein the cylindrical spur gear 4 is sleeved outside a rotating shaft 5 sleeved with a rolling bearing 7, and the rolling bearing 7 is arranged between the cylindrical spur gear 4 and the rotating shaft 5 to enable the cylindrical spur gear 4 and the rotating shaft 5 to be linked; the rack comprises a first rack 2-1 and a second rack 3-1, the first rack 2-1 and the second rack 3-1 are symmetrically assembled in the bracket 1, move on a moving track in the bracket 1 and are meshed with the cylindrical straight gear 4, a first caliper 2-2 and a second caliper 3-2 of a limiting workpiece 9 are respectively fixed on the first rack 2-1 and the second rack 3-1, the first caliper 2-2 and the second caliper 3-2 are arranged in a central symmetry manner, and the first caliper 2-2 and the second caliper 3-2 are equal in length; the rotating shaft 5 and the rolling bearing 7 are assembled together in the support 1 matched with the rotating shaft, the lower end of the rotating shaft 5 is fixedly connected with a scriber 6 for determining the center of a workpiece 9, and one end of the support 1 is screwed with a nut 8. The first rack 2-1 and the first caliper 2-2, and the second rack 3-1 and the second caliper 3-2 are perpendicular to each other in the vertical direction. The left side and the right side of the bracket 1 are communicated to form a cavity for fixing the rack and the cylindrical straight gear 4, the upper end of the bracket is provided with a hollow groove communicated with the cavity, and the lower side of the bracket is provided with a through hole communicated with the cavity for fixing the rotating shaft 5 and the rolling bearing 7. The first caliper 2-2 and the second caliper 3-2 are provided with zero positions and millimeter scales.
When the center scribing device for the workpiece 9 is used, the center scribing device comprises the following steps:
step one, adjusting zero position: firstly, loosening the nut 8, and aligning the zero positions of the first caliper 2-2 and the second caliper 3-2 with the tip of the scriber 6 by moving the first rack 2-1 and the second rack 3-1, wherein the three points are positioned on the same straight line;
step two, clamping the workpiece 9: after the first caliper 2-2 and the second caliper 3-2 adjust zero positions, the cylindrical straight gear 4 is rotated to drive the first rack 2-1 and the second rack 3-1 to move, so that the clamping ends of the first caliper 2-2 and the second caliper 3-2 clamp two sides of a workpiece 9 respectively;
step three, fixing a rack: after the workpiece 9 is clamped, the nut 8 is screwed to prevent the first rack 2-1 and the second rack 3-1 from moving;
fourthly, drawing a central line: after the rack is fixed, the centering and scribing device is moved back and forth along the contact edge of the workpiece 9 and the caliper, so that the scribing needle 6 can scribe a central line on the workpiece 9;
and fifthly, obtaining the size: and after a central line is drawn, the scale values of the first caliper 2-2 and the second caliper 3-2 are read, and then the size of the workpiece 9 is obtained through calculation.
Example 2
A center-parting marking device as shown in fig. 1-3 and fig. 5, which is used for a workpiece 9 and comprises a bracket 1, a rack and a spur gear 4 matched with the rack, wherein the spur gear 4 is sleeved outside a rotating shaft 5 of a rolling bearing 7, and the rolling bearing 7 is arranged between the spur gear 4 and the rotating shaft 5 to enable the spur gear 4 and the rotating shaft 5 to be linked; the rack comprises a first rack 2-1 and a second rack 3-1, the first rack 2-1 and the second rack 3-1 are symmetrically assembled in the bracket 1, move on a moving track in the bracket 1 and are meshed with the cylindrical straight gear 4, a first caliper 2-2 and a second caliper 3-2 of a limiting workpiece 9 are respectively fixed on the first rack 2-1 and the second rack 3-1, the first caliper 2-2 and the second caliper 3-2 are arranged in a central symmetry manner, and the first caliper 2-2 and the second caliper 3-2 are equal in length; the rotating shaft 5 and the rolling bearing 7 are assembled together in the support 1 matched with the rotating shaft, the lower end of the rotating shaft 5 is fixedly connected with a scriber 6 for determining the center of a workpiece 9, and one end of the support 1 is screwed with a nut 8. The first rack 2-1 and the first caliper 2-2, and the second rack 3-1 and the second caliper 3-2 are perpendicular to each other in the vertical direction. The left side and the right side of the bracket 1 are communicated to form a cavity for fixing the rack and the cylindrical straight gear 4, the upper end of the bracket is provided with a hollow groove communicated with the cavity, and the lower side of the bracket is provided with a through hole communicated with the cavity for fixing the rotating shaft 5 and the rolling bearing 7. The first caliper 2-2 and the second caliper 3-2 are provided with zero positions and millimeter scales.
When the center scribing device for the workpiece 9 is used, the center scribing device comprises the following steps:
step one, adjusting zero position: firstly, loosening the nut 8, and aligning the zero positions of the first caliper 2-2 and the second caliper 3-2 with the tip of the scriber 6 by moving the first rack 2-1 and the second rack 3-1, wherein the three points are positioned on the same straight line;
step two, clamping the workpiece 9: after the first caliper 2-2 and the second caliper 3-2 adjust zero positions, the cylindrical straight gear 4 is rotated to drive the first rack 2-1 and the second rack 3-1 to move, so that clamping ends of the first caliper 2-2 and the second caliper 3-2 respectively abut against two sides of the inner contour of the workpiece 9 at the same time;
step three, fixing a rack: after the workpiece 9 is clamped, the nut 8 is screwed to prevent the first rack 2-1 and the second rack 3-1 from moving;
fourthly, drawing a central line: after the rack is fixed, the centering and scribing device is moved back and forth along the contact edge of the workpiece 9 and the caliper, so that the scribing needle 6 can scribe a central line on the workpiece 9;
and fifthly, obtaining the size: and after a central line is drawn, the scale values of the first caliper 2-2 and the second caliper 3-2 are read, and then the size of the workpiece 9 is obtained through calculation.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. A center-dividing scribing device for a workpiece (9), characterized by: comprises a bracket (1), a rack and a cylindrical straight gear (4) matched with the rack, wherein the cylindrical straight gear (4) is sleeved outside a rotating shaft (5) sleeved with a rolling bearing (7), the rolling bearing (7) is arranged between the cylindrical straight gear (4) and the rotating shaft (5) to enable the rolling bearing to be linked,
the racks comprise a first rack (2-1) and a second rack (3-1), the first rack (2-1) and the second rack (3-1) are symmetrically assembled in the bracket (1), move on a moving track in the bracket (1) and are meshed with the straight cylindrical gear (4),
a first caliper (2-2) and a second caliper (3-2) for limiting a workpiece (9) are respectively and fixedly arranged on the first rack (2-1) and the second rack (3-1), the first caliper (2-2) and the second caliper (3-2) are arranged in a centrosymmetric manner,
the rotating shaft (5) and the rolling bearing (7) are assembled together in the support (1) matched with the rotating shaft, the lower end of the rotating shaft (5) is fixedly connected with a scriber (6) for determining the center of a workpiece (9),
one end of the bracket (1) is screwed with a nut (8).
2. The center-dividing scribing apparatus according to claim 1, wherein: the first rack (2-1) is vertical to the first caliper (2-2), and the second rack (3-1) is vertical to the second caliper (3-2) in the vertical direction.
3. The center-dividing scribing apparatus according to claim 1, wherein: the left side and the right side of the support (1) are communicated to form a cavity for fixing the rack and the cylindrical straight gear (4), the upper end of the support is provided with a hollow groove communicated with the cavity, and the lower side of the support is provided with a through hole communicated with the cavity for fixing the rotating shaft (5) and the rolling bearing (7).
4. The center-dividing scribing apparatus according to claim 1, wherein: the first caliper (2-2) and the second caliper (3-2) are provided with zero positions and millimeter scales.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023161927.3U CN214055240U (en) | 2020-12-24 | 2020-12-24 | Center-dividing scribing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023161927.3U CN214055240U (en) | 2020-12-24 | 2020-12-24 | Center-dividing scribing device |
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| CN214055240U true CN214055240U (en) | 2021-08-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193423A (en) * | 2021-12-17 | 2022-03-18 | 重庆川仪调节阀有限公司 | Part bolt hole scribing and positioning method |
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2020
- 2020-12-24 CN CN202023161927.3U patent/CN214055240U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193423A (en) * | 2021-12-17 | 2022-03-18 | 重庆川仪调节阀有限公司 | Part bolt hole scribing and positioning method |
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