Automatic Marking Indexer

Abstract

The present invention discloses an automatic marking type indexing instrument, which comprises a top support assembly fixed on a workpiece, a connecting rod connected to the top support assembly, a sliding plate slidably arranged on the connecting rod, and a marking assembly. The marking assembly includes a marking column slidably penetrating through the sliding plate and a rotating sleeve rotatably arranged on the sliding plate. The rotating sleeve is sleeved outside the marking column. A support plate is installed on one side of the sliding plate away from the rotating sleeve. An elastic member is telescopically arranged between the marking column and the support plate along the sliding direction of the marking column. A turntable is rotatably arranged on the support plate. A baffle is arranged on the marking column. A push rod for pushing against the baffle is arranged on the turntable. A protrusion is convexly arranged on the outer wall of the marking column. A guide groove matched with the protrusion is concavely arranged on the inner wall of the rotating sleeve. When the push rod pushes against the baffle, the protrusion can slide along the guide groove, and when the rotating sleeve is rotated, the protrusion can be clamped into one end of the guide groove. The indexing instrument of the present invention can save labor and has high marking quality.

Description

Technical Field

[0001] The present invention relates to the technical field of indexing instrument marking, and in particular, to an automatic marking type indexing instrument. Background Art

[0002] During the machining process, especially for circular workpieces, before drilling, in order to ensure the accuracy of the drilling position, it is usually necessary to perform a marking process at the pre-drilling position on the circumferential surface of the workpiece. Currently, the most commonly used marking method is to first determine the marking position through an indexing instrument, and then drive the marking column to move by means of hammering to leave a concave pit on the surface of the workpiece. This method requires a large amount of manpower, and long-term hammering operations are prone to fatigue. Moreover, since the hammering force applied each time of marking is different, the depth and size of the concave pits left are also different, thus affecting the marking quality. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: In order to overcome the above-mentioned defects existing in the prior art, there is provided an automatic marking type indexing instrument that can save labor and has high marking quality.

[0004] The technical solution adopted by the present invention to solve its technical problems is: An automatic marking type indexing instrument includes a top support assembly fixed on the workpiece, a connecting rod connected to the top support assembly, a sliding plate slidably disposed on the connecting rod, and a marking assembly. The marking assembly includes a marking column slidably penetrating the sliding plate and a rotating sleeve rotatably disposed on the sliding plate. The rotating sleeve is sleeved outside the marking column. A support plate is installed on one side of the sliding plate away from the rotating sleeve. An elastic member is telescopically disposed between the marking column and the support plate along the sliding direction of the marking column. A turntable is rotatably disposed on the support plate. A baffle is disposed on the marking column. A push rod for pushing against the baffle is disposed on the turntable. A protrusion is convexly provided on the outer wall of the marking column. A guide groove cooperating with the protrusion is concavely provided on the inner wall of the rotating sleeve. When the push rod pushes against the baffle, the protrusion can slide along the guide groove, and when the rotating sleeve is rotated, the protrusion can be snapped into one end of the guide groove.

[0005] Further, the rotating sleeve has a cylindrical structure with both ends penetrating. The guide groove has an "L" shape structure. The guide groove includes a sliding groove and a locking groove communicating with each other. The sliding groove extends along the axial direction of the rotating sleeve, and the locking groove extends along the circumferential direction of the rotating sleeve. The protrusion can slide along the sliding groove and be snapped into the locking groove.

[0006] Further, the width of the locking groove along the axial direction of the rotating sleeve is greater than the width of the protrusion along the axial direction of the rotating sleeve.

[0007] Further, a fixed sleeve is fixedly installed on the sliding plate. The fixed sleeve is sleeved outside the rotating sleeve. A bearing is arranged between the fixed sleeve and the rotating sleeve. A groove is formed in the side wall of the fixed sleeve along the circumferential direction of the fixed sleeve. A pull rod is installed on the outer wall of the rotating sleeve. One end of the pull rod passes through the groove and extends outside the fixed sleeve. The pull rod is slidably connected with the groove.

[0008] Further, a through hole is formed in the sliding plate. The marking post is fitted and inserted into the through hole. A clamping groove is recessed on the hole wall of the through hole. A clamping strip is protruded on the outer wall of the marking post. The clamping strip is slidably connected with the clamping groove. An avoidance groove is recessed on the inner wall of the rotating sleeve close to the sliding plate side. The clamping strip can move in the avoidance groove.

[0009] Further, the cross section of the support plate is in an "L" shape structure. The support plate includes a top plate and a side plate which are connected to each other. The top plate is fixedly connected with the sliding plate. One end of the elastic member is fixedly connected with and elastically abuts against one end of the marking post. The other end of the elastic member is fixedly connected with and elastically abuts against the side plate.

[0010] Further, the elastic member is a spring.

[0011] Further, a scale is slidably inserted at one end of the marking post away from the elastic member. A marking head is protruded at the end of the scale. One side of the marking head close to the scale is set as an arc surface structure which is matched with the end of the marking post. A sharp angle is arranged on the other side of the marking head relative to the arc surface structure.

[0012] Further, the top support assembly includes a dial, a rotating shaft rotatably penetrating through the dial, a rotating disc installed at the lower end of the rotating shaft, three claw catches slidable along the radial direction of the dial and evenly arranged on the lower end surface of the dial, and an adjusting disc rotatably sleeved outside the rotating shaft and located above the dial. The connecting rod is fixedly connected with the adjusting disc. A scale is arranged on the outer peripheral wall of the dial. A pointer for pointing to the scale is arranged on the outer wall of the adjusting disc. A spiral groove is arranged on the upper end surface of the rotating disc. The lower end surface of the claw catch is meshed with the spiral groove.

[0013] Further, a plurality of jacks are formed on the upper end surface of the adjusting disc. A limiting post is arranged on the rotating shaft. The lower end of the limiting post can be selectively inserted into any one of the jacks.

[0014] The beneficial effects of the present invention are as follows: The automatic marking indexing instrument provided by the present invention does not require the user to mark by means of hammering. Only by controlling the rotation of the rotating sleeve and the turntable can the locking and unlocking functions of the marking column be realized, saving labor. Moreover, since the unlocking position of the marking column is the same each time, the force with which the marking column impacts the surface of the workpiece is the same, and the depth and size of the pits left on the workpiece are uniform, thereby improving the marking quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 is a schematic structural diagram (in use state) of the automatic marking indexing instrument of the present invention;

[0017] Figure 2 is Figure 1 a partial enlarged view of part A in the automatic marking indexing instrument shown;

[0018] Figure 3 is Figure 2 a sectional view along B-B in;

[0019] Figure 4 is Figure 2 a schematic structural diagram of the rotating sleeve in;

[0020] Figure 5 is Figure 4 a sectional view along C-C of the rotating sleeve shown,;

[0021] Figure 6 is Figure 1 a top view of the adjusting disk in the automatic marking indexing instrument shown.

[0022] The names and numbers of the components in the figure are as follows:

[0023] Workpiece 1, top support assembly 10, scale disk 11

[0024] Rotating shaft 12, rotating part 121, connecting plate 122

[0025] Waist-shaped groove 123, limit post 124, turntable 13

[0026] Spiral groove 131, claw 14, adjusting disk 15

[0027] Pointer 151, jack 152, connecting rod 20

[0028] Sliding plate 30, through hole 31, card slot 311

[0029] Sliding ring 32, marking assembly 40, marking column 41

[0030] Baffle 411, protrusion 412, card strip 413

[0031] Ruler 414, marking head 415, arc surface structure 416

[0032] Sharp corner 417, rotating sleeve 42, guide groove 421

[0033] Sliding groove 4211, locking groove 4212, pull rod 422

[0034] Avoidance groove 423, support plate 43, top plate 431

[0035] Side plate 432, elastic member 44, turntable 45

[0036] Push rod 451, bracket 452, fixed sleeve 46

[0037] Bearing 461, groove 462 Detailed implementation manner

[0038] The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, so it only shows the components related to the present invention.

[0039] Please refer to Figure 1 、 Figure 2 , the present invention provides an automatic marking type indexing instrument for marking a workpiece 1. The automatic marking type indexing instrument includes a top support assembly 10, a connecting rod 20, a sliding plate 30 and a marking assembly 40. The top support assembly 10 is fixedly installed on the workpiece 1, the connecting rod 20 is connected to the top support assembly 10, the sliding plate 30 is slidably disposed on the connecting rod 20, the marking assembly 40 includes a marking column 41 that slidably penetrates the sliding plate 30 and a rotating sleeve 42 that is rotatably disposed on the sliding plate 30. The rotating sleeve 42 is sleeved outside the marking column 41. A support plate 43 is installed on a side of the sliding plate 30 away from the rotating sleeve 42. An elastic member 44 is telescopically disposed between the marking column 41 and the support plate 43 along the sliding direction of the marking column 41. A turntable 45 is rotatably disposed on the support plate 43. A baffle 411 is disposed on the marking column 41. A push rod 451 for pushing against the baffle 411 is disposed on the turntable 45. A protrusion 412 is convexly provided on the outer wall of the marking column 41. A guide groove 421 that cooperates with the protrusion 412 is concavely provided on the inner wall of the rotating sleeve 42. Pushing the baffle 411 by the push rod 451 can cause the protrusion 412 to slide along the guide groove 421, and when the rotating sleeve 42 is rotated, the protrusion 412 is clamped into one end of the guide groove 421.

[0040] During use, rotate the turntable 45 counterclockwise by 45°, driving the push rod 451 to deflect and then push against the baffle 411 to the right, forcing the marking post 41 to move to the right. During this process, the protrusion 412 slides along the guide groove 421, and the elastic member 44 is gradually compressed. When the marking post 41 moves to the right to one end of the guide groove 421, rotate the rotating sleeve 42, and the protrusion 412 can be snapped into one end of the guide groove 421. At this time, continue to rotate the turntable 45. Even if the push rod 451 is separated from the baffle 411, since the protrusion 412 is still snapped into one end of the guide groove 421, the marking post 41 will not reset, and the marking post 41 is locked. When marking is required, fixedly install the top support assembly 10 on the workpiece 1 and adjust it to the position to be marked. Rotate the rotating sleeve 42 in the reverse direction to release the locking relationship between the protrusion 412 and one end of the guide groove 421. The marking post 41 will then reset under the elastic force of the elastic member 44 and then impact the circumferential surface of the workpiece 1 to leave a pit. In this way, the marking operation of one point is completed.

[0041] The automatic marking type indexing instrument of the present invention does not require the user to perform marking by means of hammering. Only by controlling the rotation of the rotating sleeve 42 and the turntable 45 can the locking and unlocking functions of the marking post 41 be realized, saving labor. Moreover, since the unlocking position of the marking post 41 is the same each time, the force with which the marking post 41 impacts the surface of the workpiece 1 is the same, and the depth and size of the pits left on the workpiece 1 are consistent, thereby improving the marking quality.

[0042] Please refer to Figure 5 , in this embodiment, the rotating sleeve 42 has a cylindrical structure with through holes at both ends, and the guide groove 421 has an "L" shape. The guide groove 421 includes a sliding groove 4211 and a locking groove 4212 that communicate with each other. The sliding groove 4211 extends along the axial direction of the rotating sleeve 42, and the locking groove 4212 extends along the circumferential direction of the rotating sleeve 42. The protrusion 412 can slide along the sliding groove 4211 and be snapped into the locking groove 4212. Specifically, during use, when the push rod 451 pushes the baffle 411 to move to the right, the protrusion 412 slides along the sliding groove 4211. When the protrusion 412 moves to align with the notch of the locking groove 4212, rotate the rotating sleeve 42, and the protrusion 412 can be snapped into the locking groove 4212, thereby locking the marking post 41 on the rotating sleeve 42; when the rotating sleeve 42 is rotated in the reverse direction, the protrusion 412 can be disengaged from the locking groove 4212, thereby unlocking the marking post 41.

[0043] Furthermore, the width of the locking groove 4212 along the axial direction of the rotating sleeve 42 is greater than the width of the protrusion 412 along the axial direction of the rotating sleeve 42. In this way, during the process of the push rod 451 pushing the baffle 411, the protrusion 412 can move a certain position along the axial direction of the rotating sleeve 42 within the locking groove 4212 to ensure that the protrusion 412 can be smoothly snapped into the locking groove 4212 when the rotating sleeve 42 is rotated.

[0044] Please refer to again Figure 2 Figure 2 , in a specific embodiment, a fixing sleeve 46 is fixedly installed on the sliding plate 30. The fixing sleeve 46 is sleeved outside the rotating sleeve 42. A bearing 461 is arranged between the fixing sleeve 46 and the rotating sleeve 42. A groove 462 is formed in the side wall of the fixing sleeve 46 along the circumferential direction of the fixing sleeve 46. A pull rod 422 is installed on the outer wall of the rotating sleeve 42. One end of the pull rod 422 passes through the groove 462 and extends outside the fixing sleeve 46. The pull rod 422 is slidably connected with the groove 462. By arranging the bearing 461, the stability of the rotating sleeve 42 can be promoted, and the rotating sleeve 42 can be prevented from shifting. When in use, the user rotates the pull rod 422 to realize the forward and reverse rotation of the rotating sleeve 42, and the operation is simple and convenient. In this embodiment, there are two bearings 461, and the two bearings 461 are respectively arranged at opposite ends of the rotating sleeve 42, and the groove 462 is located between the two bearings 461.

[0045] Please refer to Figure 3 、 Figure 4 Figure 4 , in this embodiment, a through hole 31 is formed in the sliding plate 30. The marking post 41 is fitted through the through hole 31. A clamping groove 311 is recessed on the hole wall of the through hole 31. A clamping strip 413 is protruded on the outer wall of the marking post 41 along the axial direction of the marking post 41. The clamping strip 413 is slidably connected with the clamping groove 311. An avoidance groove 423 is recessed on the inner wall of the rotating sleeve 42 close to the sliding plate 30. The clamping strip 413 can move in the avoidance groove 423. By arranging the cooperation of the clamping strip 413 and the clamping groove 311, the marking post 41 is forced to be able to slide only along its own axis and cannot rotate relative to the sliding plate 30. At the same time, the avoidance groove 423 can avoid the part of the clamping strip 413 located outside the through hole 31 from moving, so as to facilitate the rotation of the rotating sleeve 42 relative to the marking post 41.

[0046] Please refer to again Figure 1 Figure 1 , in a specific embodiment, the cross section of the support plate 43 is in an "L" - shaped structure. The support plate 43 includes a top plate 431 and a side plate 432 which are connected to each other. The top plate 431 is fixedly connected with the sliding plate 30. One end of the elastic member 44 is fixedly connected with and elastically abuts against one end of the marking post 41, and the other end of the elastic member 44 is fixedly connected with and elastically abuts against the side plate 432.

[0047] In this embodiment, the elastic member 44 is a spring. It can be understood that in other embodiments not shown, the elastic member 44 can also be an element with rigidity and elasticity such as a stainless - steel elastic sheet or a copper - made elastic sheet, which is not limited herein.

[0048] Please refer to again Figure 2, a scale 414 is slidably inserted at one end of the marking post 41 away from the elastic member 44. A marking head 415 protrudes from the end of the scale 414. On one side of the marking head 415 close to the scale 414, there is an arc surface structure 416 that cooperates with the end of the marking post 41. On the side of the marking head 415 opposite to the arc surface structure 416, there is a sharp corner 417. During use, the scale 414 can be pulled out by the user. The scale 414 is used to adjust the distance between the outer circumferential surface of the workpiece 1 and the marking head 415, so that when the turntable 45 rotates counterclockwise, it can drive the push rod 451 to repeatedly push against the baffle 411, thereby enabling the marking post 41 to repeatedly move to the right. After the distance of the marking head 415 is adjusted, the scale 414 is inserted into the marking post 41. At this time, the marking post 41 can be released by rotating the rotating sleeve 42. Finally, the sharp corner 417 of the marking head 415 impacts the workpiece 1, leaving a pit.

[0049] Please refer to again Figure 1 , in this embodiment, two brackets 452 are fixedly connected to the top plate 431. The two ends of the central axis of the turntable 45 are rotatably connected to the brackets 452. In addition, the turntable 45 can be rotated manually or by a motor-driven method, which is not limited here.

[0050] In this embodiment, a sliding ring 32 is installed on the top of the sliding plate 30. The sliding ring 32 is slidably sleeved outside the connecting rod 20. A locking bolt (not shown in the figure) is threadedly connected to the side wall of the sliding ring 32. One end of the locking bolt passes through the side wall of the sliding ring 32 and can abut against the outer wall of the connecting rod 20, thereby realizing the locking function of the sliding plate 30 after the adjustment position is completed.

[0051] In addition, in other embodiments not shown, the sliding plate 30 can also be designed as a telescopic rod structure. For example, the sliding plate 30 includes an inner sleeve and an outer sleeve that is slidably sleeved outside the inner sleeve. The outer sleeve is slidably connected to the connecting rod 20, and the marking assembly 40 is installed on the inner sleeve. In this way, the height of the marking can be adjusted by adjusting the length of the sliding plate 30.

[0052] The top support assembly 10 includes a dial 11, a rotating shaft 12 that rotatably penetrates the dial 11, a rotating disk 13 installed at the lower end of the rotating shaft 12, three claws 14 that are slidable along the radial direction of the dial 11 and are evenly arranged on the lower end surface of the dial 11, and an adjusting disk 15 that is rotatably sleeved outside the rotating shaft 12 and is located above the dial 11. The connecting rod 20 is fixedly connected to the adjusting disk 15. A scale is provided on the outer peripheral wall of the dial 11, and a pointer 151 for pointing to the scale is provided on the outer wall of the adjusting disk 15. A spiral groove 131 is provided on the upper end surface of the rotating disk 13, and the lower end surface of the claw 14 meshes with the spiral groove 131.

[0053] When it is necessary to fix the top support assembly 10 on the workpiece 1, hold the dial 11 and place the three jaws 14 into the inner cavity at the center of the workpiece 1. Then, rotate the rotating shaft 12 relative to the dial 11 to drive the rotating disk 13 to rotate synchronously, thereby driving the jaws 14 to slide radially outward along the dial 11. Finally, the three jaws 14 are clamped on the inner wall of the workpiece 1 to achieve the fixing effect. When it is necessary to adjust the angle of the marking assembly 40, just rotate the adjusting disk 15 relative to the dial 11. The user can know the magnitude of the rotation angle by observing the alignment between the scale on the dial 11 and the pointer 151.

[0054] To facilitate the rotation of the rotating shaft 12, a rotating portion 121 is provided at the top of the rotating shaft 12. The rotating portion 121 can be a slotted drive or a Phillips head slot. The user only needs to use a matching tool (for example, a screwdriver) to rotate the rotating shaft 12 through the rotating portion 121.

[0055] Please also refer to Figure 1 、 Figure 6 , in this embodiment, a plurality of jacks 152 are provided on the upper end surface of the adjusting disk 15. The plurality of jacks 152 are divided into multiple groups. Each group of jacks 152 has a plurality of them and is evenly arranged on the same circumference with the rotation center of the adjusting disk 15 as the center of the circle. The number of each group of jacks 152 is different. A connecting plate 122 is connected to the rotating shaft 12. A waist-shaped slot 123 is provided radially on the connecting plate 122 relative to the adjusting disk 15. A limiting post 124 is inserted through the waist-shaped slot 123. The lower end of the limiting post 124 can be selectively inserted into any one of the jacks 152. In each group of jacks 152, the deflection angle between two adjacent jacks 152 is the same. In this way, it can be ensured that during marking, the deflection angle between every two adjacent marking points is the same. After the limiting post 124 is inserted into the jack 152, the adjusting disk 15 can be locked on the rotating shaft 12 to prevent the adjusting disk 15 from rotating easily.

[0056] Inspired by the above ideal embodiments according to the present invention, through the above description, relevant staff can make various changes and modifications completely within the scope not deviating from the present invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An automatic marking type indexing instrument, characterized in that: It includes a top support assembly fixed on a workpiece, a connecting rod connected to the top support assembly, a sliding plate slidably disposed on the connecting rod, and a marking assembly. The marking assembly includes a marking post slidably penetrating through the sliding plate and a rotating sleeve rotatably disposed on the sliding plate. The rotating sleeve is sleeved outside the marking post. A support plate is installed on a side of the sliding plate away from the rotating sleeve. An elastic member is telescopically disposed between the marking post and the support plate along the sliding direction of the marking post. A turntable is rotatably disposed on the support plate. A baffle is disposed on the marking post. A push rod for pushing against the baffle is disposed on the turntable. A protrusion is convexly provided on an outer wall of the marking post. A guide groove for cooperating with the protrusion is concavely provided on an inner wall of the rotating sleeve. Pushing the baffle by the push rod can cause the protrusion to slide along the guide groove and engage the protrusion into one end of the guide groove when the rotating sleeve is rotated. The rotating sleeve has a cylindrical structure with both ends penetrating. The guide groove has an "L" shape structure. The guide groove includes a sliding groove and a locking groove communicating with each other. The sliding groove extends along the axial direction of the rotating sleeve. The locking groove extends along the circumferential direction of the rotating sleeve. The protrusion can slide along the sliding groove and be engaged into the locking groove. A through hole is formed on the sliding plate. The marking post is cooperatively inserted through the through hole. A clamping groove is recessed on a hole wall of the through hole. A clamping strip is convexly provided on an outer wall of the marking post. The clamping strip is slidably connected with the clamping groove. An avoidance groove is recessed on an inner wall of the rotating sleeve close to the sliding plate. The clamping strip can move in the avoidance groove.

2. The automatic marking type indexing instrument according to claim 1, characterized in that: The width of the locking groove along the axial direction of the rotating sleeve is greater than the width of the protrusion along the axial direction of the rotating sleeve.

3. The automatic marking type indexing instrument according to claim 1, characterized in that: A fixed sleeve is fixedly installed on the sliding plate. The fixed sleeve is sleeved outside the rotating sleeve. A bearing is disposed between the fixed sleeve and the rotating sleeve. A groove is formed on a side wall of the fixed sleeve along the circumferential direction of the fixed sleeve. A pull rod is installed on an outer wall of the rotating sleeve. One end of the pull rod passes through the groove and extends outside the fixed sleeve. The pull rod is slidably connected with the groove.

4. The automatic marking type indexing instrument according to claim 1, wherein: The cross section of the support plate has an "L" shape structure. The support plate includes a top plate and a side plate connected to each other. The top plate is fixedly connected with the sliding plate. One end of the elastic member is fixedly connected with one end of the marking post and elastically abuts against it. The other end of the elastic member is fixedly connected with the side plate and elastically abuts against it.

5. The automatic marking type indexing instrument according to claim 4, wherein: The elastic member is a spring.

6. The automatic marking type dividing instrument according to claim 4, characterized in that: A scale is slidably inserted at an end of the marking post away from the elastic member. A marking head is convexly provided at an end of the scale. A side of the marking head close to the scale is provided with an arc surface structure for cooperating with the end of the marking post. A sharp angle is provided on a side of the marking head opposite to the arc surface structure.

7. The automatic marking type indexing instrument according to any one of claims 1-6, characterized in that: The top support assembly includes a dial, a rotating shaft rotatably passing through the dial, a rotating disk installed at the lower end of the rotating shaft, three clamping claws slidable along the radial direction of the dial and evenly arranged on the lower end face of the dial, and an adjusting disk rotatably sleeved outside the rotating shaft and located above the dial. The connecting rod is fixedly connected to the adjusting disk. A scale is provided on the outer peripheral wall of the dial, a pointer for pointing to the scale is provided on the outer wall of the adjusting disk, a spiral groove is provided on the upper end face of the rotating disk, and the lower end face of the clamping claw is engaged with the spiral groove.

8. The automatic marking type indexing instrument according to claim 7, wherein: A plurality of jacks are provided on the upper end face of the adjusting disk, a limiting post is provided on the rotating shaft, and the lower end of the limiting post can be selectively inserted into any one of the jacks.

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