Indexing cutting machine for annular workpiece

Abstract

The indexing cutting machine comprises a push rod and a machining area used for containing the annular workpiece, the annular workpiece is cut and machined in the machining area, a limiting part used for abutting against the outer side of the annular workpiece is arranged on the machining area, and one end of the push rod is movably connected with a rotating shaft. A pushing part for acting on the inner side of the annular workpiece is arranged at the other end of the push rod; the push rod is in transmission connection with a first driving device; the first driving device moves in the forward direction to enable the pushing part to drive the annular workpiece to swing in the forward direction around the rotating shaft, the first driving device can achieve equal length of forward movement each time, so that the pushing rod can drive the pushing part and the annular workpiece to swing by the same angle around the rotating shaft each time, and workers do not need to measure the rotating angle of the annular workpiece; the cutting efficiency of the annular workpiece is improved, and meanwhile the situation that the yield is reduced due to measurement errors is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing of ring segment parts, in particular to a dividing cutting machine for annular workpieces. Background Art

[0002] The indexing cutting machine is a device that can cut workpieces at equal intervals. For annular workpieces, the angle of rotation of the workpiece needs to be measured during the segmented cutting process, resulting in low efficiency in the segmented cutting of annular workpieces. In addition, the spacing of the cutting of annular workpieces cannot be equidistant due to measurement accuracy problems, affecting the yield rate of the workpiece.

[0003] Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a dividing cutting machine for annular workpieces, which has a simple overall structure and does not require additional angle measurement of the annular workpiece, thereby improving the processing efficiency and yield rate of the annular workpieces.

[0005] The purpose of the utility model is achieved in this way:

[0006] A dividing cutting machine for annular workpieces comprises a push rod and a processing area for placing the annular workpiece. The annular workpiece is cut in the processing area. A limiting portion for abutting against the outer side of the annular workpiece is provided on the processing area. One end of the push rod is movably connected with a rotating shaft. The other end of the push rod is provided with a pushing portion for acting on the inner side of the annular workpiece. The push rod is transmission-connected with a first driving device. The first driving device moves forward so that the pushing portion drives the annular workpiece to swing forward around the rotating shaft.

[0007] As a specific solution, the first driving device moves in the reverse direction to cause the pushing part to swing in the reverse direction around the rotating axis and reset.

[0008] As a specific solution, a linkage part is provided in the middle section of the push rod, which is connected to the first driving device through mutual transmission. The first driving device can drive the push rod to swing forward or reverse through the linkage part, and the linkage part slides back and forth with the push rod along the length direction of the push rod.

[0009] As a specific solution, a telescopic mechanism is provided between the push rod and the push part, and the push part can move back and forth along the length direction of the push rod through the telescopic mechanism; the telescopic mechanism extends to enable the push part to move against the annular workpiece, and the telescopic mechanism contracts to enable the push part to move away from the annular workpiece.

[0010] As a specific solution, a limiting arc surface corresponding to the outer shape of the annular workpiece is provided on the side of the limiting portion facing the processing area.

[0011] As a specific solution, the limiting arc surface is in an arc shape, and the rotation axis coincides with the center position of the limiting arc surface.

[0012] As a specific solution, the outer side of the processing area is also provided with a crimping portion for abutting against the inner side of the annular workpiece. The crimping portion is connected to a second driving device, and the second driving device drives the crimping portion to reciprocate to clamp the annular workpiece between the limiting portion and the crimping portion, or to loosen the annular workpiece.

[0013] As a specific solution, an end of the crimping portion facing the processing area is provided with an abutting arc surface corresponding to the inner shape of the annular workpiece.

[0014] As a specific solution, a cutting device is provided above the processing area, and the cutting device is connected to a lifting mechanism, and the cutting device enters or leaves the processing area vertically through the lifting mechanism.

[0015] As a specific solution, the cutting device includes a cutting disc, and a hollow groove is provided on the limiting portion at a position corresponding to the position below the limiting disc, and the width of the hollow groove is greater than the width of the cutting disc.

[0016] The beneficial effects of the utility model are:

[0017] Since the first driving device can achieve equidistant length for each forward movement, the push rod can drive the pushing part and the annular workpiece to swing around the rotation axis at the same angle each time. Workers do not need to measure the rotation angle of the annular workpiece, which improves the cutting efficiency of the annular workpiece and avoids the decrease in yield rate due to measurement errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The working state of the embodiment of the utility model is shown in FIG. Figure 1 .

[0019] Figure 2 The working state of the embodiment of the utility model is shown in FIG. Figure 2 .

[0020] Figure 3 The working state of the embodiment of the utility model is shown in FIG. Figure 3 .

[0021] Figure 4 The working state of the embodiment of the utility model is shown in FIG. Figure 4 .

[0022] Figure 5 The working state of the embodiment of the utility model is shown in FIG. Figure 5 . DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1-Figure 5 The indexing cutting machine for annular workpieces includes a push rod 1 and a processing area for placing an annular workpiece 8. The annular workpiece 8 completes the cutting process in the processing area. A limiting portion 2 for abutting against the outer side of the annular workpiece 8 is provided on the processing area. A rotating shaft 11 is movably connected to one end of the push rod 1. A pushing portion 12 for acting on the inner side of the annular workpiece 8 is provided at the other end of the push rod 1. The push rod 1 is transmission-connected to a first driving device 31. The first driving device 31 moves forward so that the pushing portion 12 drives the annular workpiece 8 to swing forward around the rotating shaft 11. At this time, the push rod 1 pushes the annular workpiece 8 to rotate through the pushing portion 12. Under the joint action of the limiting portion 2 and the pushing portion 12, the annular workpiece 8 rotates a certain angle according to a preset trajectory, and then completes the cutting process.

[0025] Since the first driving device 31 can achieve equidistant length for each forward movement, the push rod 1 can drive the pushing portion 12 and the annular workpiece 8 to swing at the same angle around the rotating axis 11 each time. Workers do not need to measure the rotation angle of the annular workpiece 8, thereby improving the cutting efficiency of the annular workpiece 8 and avoiding the decrease in yield rate due to measurement errors.

[0026] In this embodiment, the forward movement of the first driving device 31 is an extension movement, and the reverse movement of the first driving device 31 is a contraction movement.

[0027] Furthermore, the first driving device 31 moves in the reverse direction to make the pushing portion 12 swing and reset in the reverse direction around the rotating shaft 11 . The push rod 1 can also be reset by the first driving device 31 to prepare for the next rotation of pushing the annular workpiece 8 .

[0028] Furthermore, a linkage part 13 is provided in the middle section of the push rod 1, and the linkage part 13 is mutually transmission-connected with the first driving device 31. The first driving device 31 can drive the push rod 1 to swing forward or reverse through the linkage part 13, and the linkage part 13 slides back and forth with the push rod 1 along the length direction of the push rod 1.

[0029] Furthermore, a telescopic mechanism 4 is provided between the push rod 1 and the push part 12, and the push part 12 can move back and forth along the length direction of the push rod 1 through the telescopic mechanism 4; the telescopic mechanism 4 is extended to make the push part 12 move to resist the annular workpiece 8, and the telescopic mechanism 4 is contracted to make the push part 12 move to separate from the annular workpiece 8, thereby preventing the push rod 1 from swinging in the opposite direction and affecting the annular workpiece 8.

[0030] Furthermore, a limiting arc surface 21 corresponding to the outer shape of the annular workpiece 8 is provided on the side of the limiting portion 2 facing the processing area. The limiting portion 2 can better connect and cooperate with the outer side of the annular workpiece 8, thereby improving the stability of the annular workpiece 8 during rotation, thereby making the processing more accurate.

[0031] Furthermore, the limiting arc surface 21 is in an arc shape, and the center position of the rotating shaft 11 coincides with the limiting arc surface 21, so that the pushing portion 12 of the push rod 1 can better act on the annular workpiece 8 and cooperate better with the limiting arc surface 21, further improving the rotation stability of the annular workpiece 8.

[0032] Furthermore, a crimping portion 5 for abutting against the inner side of the annular workpiece 8 is also provided on the outer side of the processing area. The crimping portion 5 is connected to a second driving device 32. The second driving device 32 drives the crimping portion 5 to reciprocate to clamp the annular workpiece 8 between the limiting portion 2 and the crimping portion 5, or to loosen the annular workpiece 8. The crimping portion 5 can cooperate with the limiting portion 2 to further improve the stability of the annular workpiece 8 during the processing and avoid displacement of the annular workpiece 8 during the processing.

[0033] Furthermore, one end of the crimping portion 5 facing the processing area is provided with an abutting arc surface 51 corresponding to the inner shape of the annular workpiece 8, so that the crimping portion 5 can be more closely connected with the inner side of the annular workpiece 8, further improving the stability of the processing process of the annular workpiece 8.

[0034] Furthermore, a cutting device 6 is provided above the processing area, and the cutting device 6 is connected to a lifting mechanism 7 , and the cutting device 6 enters or leaves the processing area vertically through the lifting mechanism 7 .

[0035] Furthermore, the cutting device 6 includes a cutting disc 61, and a hollow groove is provided on the limiting portion 2 at a position corresponding to the position below the limiting disc, and the width of the hollow groove is greater than the width of the cutting disc 61, so as to prevent the limiting portion 2 from affecting the normal cutting processing of the annular workpiece 8 by the cutting disc 61.

[0036] The working process of the utility model is as follows:

[0037] Step 1: Figure 1-Figure 3 As shown, the annular workpiece 8 is first placed on the processing area, the crimping portion 5 cooperates with the limiting portion 2 through the second driving device 32 to fix the annular workpiece 8, and the cutting device 6 moves downward through the lifting mechanism 7 to perform the first cutting process on the annular workpiece 8.

[0038] Step 2: The cutting device 6 is moved upward and reset through the lifting mechanism 7 , and the crimping portion 5 is reset and separated from the annular workpiece 8 through the second driving device 32 .

[0039] Step 3: If Figure 4 , Figure 5As shown, the pushing portion 12 is extended through the telescopic mechanism 4 to abut against the inner side of the annular workpiece 8, the first driving device 31 moves forward to cause the push rod 1 to drive the pushing portion 12 to swing forward around the rotating shaft 11, and the annular workpiece 8 rotates around the rotating shaft 11 at a preset angle along with the pushing portion 12 until it is in place, the crimping portion 5 cooperates with the limiting portion 2 through the second driving device 32 to fix the annular workpiece 8 in position, and the cutting device 6 moves downward through the lifting mechanism 7 to perform a second cutting process on the annular workpiece 8.

[0040] Step 4: The cutting device 6 moves upward and resets through the lifting mechanism 7, the crimping part 5 is reset and separated from the annular workpiece 8 through the second driving device 32, the pushing part 12 is separated from the inner side of the annular workpiece 8 through the telescopic mechanism 4, and the first driving device 31 moves in the reverse direction to make the push rod 1 drive the pushing part 12 to swing in the reverse direction around the rotating shaft 11 until the push rod 1 is reset.

[0041] Repeat steps three and four until the indexing cutting of the annular workpiece 8 is completed. Since the telescopic length of the first driving device 31 is fixed, the angle of rotation of the annular workpiece 8 is constant each time, and there is no need to measure the angle of the annular workpiece 8 each time.

[0042] The above embodiments are only preferred embodiments of the present invention, and the present invention may have other embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all within the scope set by the claims of this application.

Claims

1. A dividing cutting machine for annular workpieces, characterized in that: The invention comprises a push rod (1) and a processing area for placing an annular workpiece (8), wherein the annular workpiece (8) is cut in the processing area, wherein a limiting portion (2) is provided on the processing area for contacting the outer side of the annular workpiece (8), wherein one end of the push rod (1) is movably connected to a rotating shaft (11), and the other end of the push rod (1) is provided with a pushing portion (12) for acting on the inner side of the annular workpiece (8), and the push rod (1) is transmission-connected to a first driving device (31); the first driving device (31) moves in a positive direction so that the pushing portion (12) drives the annular workpiece (8) to swing in a positive direction around the rotating shaft (11).

2. The indexing cutting machine for annular workpieces according to claim 1, characterized in that: The first driving device (31) moves in the reverse direction to cause the pushing portion (12) to swing in the reverse direction around the rotating shaft (11) and reset.

3. The indexing cutting machine for annular workpieces according to claim 1, characterized in that: A linkage portion (13) is provided in the middle section of the push rod (1), and the linkage portion (13) is in transmission connection with the first drive device (31). The first drive device (31) can drive the push rod (1) to swing forward or backward through the linkage portion (13). The linkage portion (13) is in reciprocating sliding cooperation with the push rod (1) along the length direction of the push rod (1).

4. The indexing cutting machine for annular workpieces according to claim 1, characterized in that: A telescopic mechanism (4) is provided between the push rod (1) and the push portion (12), and the push portion (12) can move back and forth along the length direction of the push rod (1) through the telescopic mechanism (4); the telescopic mechanism (4) extends so that the push portion (12) moves to abut against the annular workpiece (8), and the telescopic mechanism (4) contracts so that the push portion (12) moves to detach from the annular workpiece (8).

5. The indexing cutting machine for annular workpieces according to claim 1, characterized in that: A limiting arc surface (21) corresponding to the outer shape of the annular workpiece (8) is provided on the side of the limiting portion (2) facing the processing area.

6. The indexing cutting machine for annular workpieces according to claim 5, characterized in that: The limiting arc surface (21) is in the shape of an arc, and the rotation axis (11) coincides with the center position of the limiting arc surface (21).

7. The indexing cutting machine for annular workpieces according to claim 1, characterized in that: The outer side of the processing area is also provided with a crimping portion (5) for abutting against the inner side of the annular workpiece (8), and the crimping portion (5) is connected to a second driving device (32). The second driving device (32) drives the crimping portion (5) to reciprocate, so as to clamp the annular workpiece (8) between the limiting portion (2) and the crimping portion (5), or to release the annular workpiece (8).

8. The indexing cutting machine for annular workpieces according to claim 7, characterized in that: An end of the crimping portion (5) facing the processing area is provided with an abutting arc surface (51) corresponding to the inner shape of the annular workpiece (8).

9. The indexing cutting machine for annular workpieces according to any one of claims 1 to 8, characterized in that: A cutting device (6) is provided above the processing area, and the cutting device (6) is connected to a lifting mechanism (7). The cutting device (6) enters or leaves the processing area vertically via the lifting mechanism (7).

10. The indexing cutting machine for annular workpieces according to claim 9, characterized in that: The cutting device (6) comprises a cutting blade disc (61), and a hollow groove is provided on the limiting portion (2) at a position corresponding to the position below the limiting blade disc, wherein the width of the hollow groove is greater than the width of the cutting blade disc (61).

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