Circular ring type workpiece clamp for vertical lathe

Abstract

The utility model relates to the technical field of vertical lathe machining, in particular to an annular workpiece clamp for a vertical lathe, which comprises a fixed base, an abutting piece and a fastening piece. A first through hole is formed in the fixed base in a penetrating mode in the first direction, a plurality of positioning grooves are formed in the fixed base in the circumferential direction of the fixed base, the positioning grooves communicate with the first through hole, and the straight line where the length direction of the positioning grooves is located coincides with the radial extension line of the fixed base; one end of the abutting piece is located in the positioning groove, the other end of the abutting piece is located above the fixed base, and the abutting piece is slidably connected to the fixed base along the groove wall of the positioning groove. The positioning groove is provided with a plurality of adjusting holes for positioning the abutting piece in the first direction, the adjusting holes are evenly formed in the length direction of the positioning groove at intervals, and the fastening piece is connected to the adjusting holes in a threaded mode after penetrating through the abutting piece. The workpiece fixing device has the effect of improving the accuracy of the workpiece fixing position.

Description

Technical Field

[0001] The present application relates to the technical field of vertical lathe processing, and in particular to a ring-type workpiece fixture for a vertical lathe. Background Art

[0002] Vertical lathes are mainly used to process workpieces with large diameters and short lengths, and workpieces that are not easy to clamp on horizontal lathes. During the vertical lathe processing, the fixture is an important device for fixing the workpiece, and is used to process the inner and outer rotating surfaces and end faces of the workpiece. However, traditional fixtures are usually only suitable for one size of circular workpieces. When it is necessary to process circular workpieces of different sizes, the corresponding fixtures need to be replaced, which not only increases the processing cost, but also reduces the processing efficiency. In order to solve the above problems, some manufacturers try to design adjustable size fixtures.

[0003] In the related technology, a vertical lathe clamp disclosed in a Chinese patent with application number CN201621280843.2 includes a workbench, a plurality of guide grooves arranged on the upper surface of the workbench, a clamping block slidably connected to the guide grooves, and a first fixing mechanism for fixing the clamping block. It also includes a support plate arranged on the side of the clamping block close to the workpiece for increasing the contact area between the clamping block and the workpiece, and an adjustment mechanism connected to the support plate for adjusting the curvature of the support plate; when in use, the workpiece is placed on the workbench, the workpiece is clamped by the sliding of the clamping block along the guide groove, and the clamping block is fixed by the first fixing mechanism.

[0004] With regard to the above-mentioned related technologies, when the clamping block slides along the guide groove, after the workpiece is placed on the workbench, the personnel adjust the position of the clamping block according to the size of the workpiece. During this process, it cannot be ensured that the workpiece is in the center position of the workbench, which will affect the subsequent processing of the workpiece and further affect the quality of the workpiece. Therefore, there is an urgent need for a clamp that can improve the accuracy of the workpiece fixing position. Utility Model Content

[0005] In order to improve the accuracy of workpiece fixing position, the present application provides a ring-type workpiece fixture for a vertical lathe.

[0006] The present application provides a ring-type workpiece fixture for a vertical lathe, which adopts the following technical solution:

[0007] A circular ring workpiece fixture for a vertical lathe, comprising a fixed base, a fastening member and a fastening member;

[0008] The fixed base is provided with a first through hole along a first direction, and the fixed base is provided with a plurality of positioning grooves along its circumference, the positioning grooves are connected with the first through hole, and the straight line where the length direction of the positioning grooves is located coincides with the radial extension line of the fixed base;

[0009] One end of the abutting member is located in the positioning groove, and the other end is located above the fixed base, and the abutting member is slidably connected to the fixed base along the wall of the positioning groove;

[0010] The positioning groove is provided with a plurality of adjustment holes for positioning the abutting member along a first direction, and the plurality of adjustment holes are evenly spaced along a length direction of the positioning groove. The fastener is threadedly connected to the adjustment holes after passing through the abutting member.

[0011] By adopting the above technical scheme, when it is necessary to clamp the circular workpiece, the workpiece is placed on the fixed base, and the clamping piece is located on the inner side of the workpiece, and the clamping piece is slid along the wall of the positioning groove so that the clamping piece abuts the workpiece, or the abutting piece is located on the outer side of the workpiece so that the workpiece is clamped by the abutting piece, and the clamping piece and the fixed base are fixed by fasteners. The circular workpiece is generally located at the center of the fixed base during processing. In order to improve the accuracy of the workpiece position, a plurality of adjustment holes are evenly spaced along the length direction of the positioning groove in the positioning groove. Since each positioning groove is provided with an adjustment hole, the personnel can judge the position of the clamping piece in the positioning groove according to the adjustment hole. If the position of the clamping piece in the positioning groove is different, it can be adjusted so that the workpiece is located as much as possible in the center of the fixed base.

[0012] Optionally, the clamping member includes a sliding portion and a clamping portion, the clamping portion is connected to the sliding portion, the sliding portion is located in the positioning groove, the clamping portion is located on a side of the sliding portion away from the positioning groove, and the width of the clamping portion is greater than the width of the sliding portion.

[0013] By adopting the above technical solution, in order to maximize the contact area between the clamping part and the workpiece, the clamping part includes a sliding part and a clamping part, and the width of the clamping part is greater than the width of the sliding part, so that the contact area between the clamping part and the workpiece is increased, further improving the fixing effect of the clamping part on the workpiece.

[0014] Optionally, the pressing portion is slidably connected to the sliding portion along the first direction, so that a clamping area is formed by the pressing portion and the sliding portion in the first direction.

[0015] By adopting the above technical solution, when processing the workpiece, due to the small thickness of some workpieces, the contact between the clamping part and the side wall of the workpiece may cause deformation of the workpiece. For this reason, the clamping part is slidably connected to the movable part along the first direction to adjust the height of the clamping area. The workpiece can be placed in the clamping area, and the top wall of the workpiece is abutted and fixed by the clamping part, thereby avoiding deformation of the workpiece.

[0016] Optionally, it further includes a first adjustment component, wherein the first adjustment component includes a telescopic member and a locking nut;

[0017] The telescopic member is parallel to the first direction, the telescopic member is located between the pressing portion and the sliding portion, the telescopic member includes a movable portion and a fixed portion, the movable portion is fixedly connected to the pressing portion, the fixed portion is connected to the movable portion, the movable portion is slidably connected to one end close to the fixed portion, and the locking nut is used to fix the movable portion and the fixed portion.

[0018] By adopting the above technical solution, in order to make the pressing part slide along the first direction, a telescopic part is arranged between the pressing part and the sliding part, and the pressing part is driven to slide by the sliding of the telescopic part along the first direction. When the pressing part slides to the clamping height, the fixed part and the movable part of the telescopic part are fixed by the locking nut, thereby further realizing the fixation of the pressing part.

[0019] Optionally, the height of the sliding portion is not higher than the height of the positioning groove.

[0020] By adopting the above technical solution, when the clamping part slides along the first direction to the clamping height, in order to enable the workpiece to be firmly placed on the fixed base, the height of the sliding part is not higher than the height of the positioning groove to avoid blocking the workpiece after the sliding part extends out of the positioning groove.

[0021] Optionally, the fixed portion of the telescopic member is slidably connected to the sliding portion along the length direction of the positioning groove.

[0022] By adopting the above technical solution, since the multiple adjustment holes in the positioning groove are evenly arranged, that is, in order to fix the sliding part, the sliding part can only move accordingly according to the positions of the adjustment holes, which further limits the movable distance of the sliding part. To this end, the fixed part is connected to the sliding part by sliding along the length direction of the positioning groove to ensure that when the sliding part is fixed, the telescopic part can still be moved along the length direction of the positioning groove, thereby achieving fine adjustment of the position of the clamping part relative to the sliding part, thereby further adapting to workpieces of different sizes.

[0023] Optionally, it also includes a second adjusting component, which includes a screw and a slider, the sliding part is provided with a slide groove along the length direction of the positioning groove, the screw is parallel to the length direction of the positioning groove, one end of the screw is located in the slide groove, and the other end is located outside the sliding part after passing through the slide groove, the screw is rotatably connected to the sliding part, the rotation axis of the screw along the sliding part is parallel to the length direction of the positioning groove, the end of the fixed part away from the movable part is fixedly connected to the slider, the slider is sleeved on the screw, the outer peripheral wall of the slider is in contact with the wall of the slide groove, and the fixed part slides along the length direction of the screw.

[0024] By adopting the above technical solution, in order to make the telescopic part slide along the length direction of the positioning groove, a screw rod and a slider are set, and the screw rod is rotated to drive the slider to slide along the length direction of the screw rod, and the telescopic part further drives the clamping part to slide along the length direction of the positioning groove.

[0025] Optionally, two parallel sides of the abutting portion are arc-shaped, and the arc-shaped opening faces a side close to the first through hole.

[0026] By adopting the above technical solution, since the workpiece is in a circular ring shape, in order to further improve the fixing effect of the clamping part on the workpiece, the two parallel sides of the clamping part are arc-shaped, so that the contact area between the arc-shaped clamping part and the workpiece is larger, thereby further improving the fixing effect of the workpiece.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The present application provides evenly spaced adjustment holes in the positioning groove. When the abutting piece is slid along the positioning groove, the personnel can judge whether the workpiece is in the center of the fixed base by observing the position of the abutting piece in the positioning groove. If the adjustment holes of the abutting piece in the positioning groove are not consistent, the personnel can adjust the corresponding abutting piece to improve the accuracy of the workpiece position.

[0029] 2. The present application connects the abutting portion to the movable portion by sliding along the first direction, so that the abutting portion abuts against the top wall of the thinner workpiece to prevent deformation of the workpiece;

[0030] 3. By setting up a second adjustment component, the present application can fine-tune the position of the pressing part while the position of the sliding part is fixed, thereby expanding the movement range of the pressing part. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the ring-type workpiece fixture for the vertical lathe of the present application;

[0032] Figure 2 It is an exploded view of the fastening member of the present application;

[0033] Figure 3 It is a schematic diagram of the structure of the first adjustment component and the second adjustment component of the present application;

[0034] Figure 4 This is an enlarged view of part A.

[0035] Explanation of the reference numerals: 1. fixed base; 11. first through hole; 12. positioning groove; 121. adjustment hole; 2. fastening member; 21. sliding portion; 211. second locking hole; 212. slide groove; 22. fastening member; 221. first locking hole; 222. clamping area; 3. fastener; 4. first adjustment component; 41. telescopic member; 411. fixed portion; 412. movable portion; 42. locking nut; 5. second adjustment component; 51. screw; 52. slider. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The present application embodiment discloses a ring-type workpiece fixture for a vertical lathe. Figure 1 The annular workpiece fixture for a vertical lathe includes a fixed base 1 and a plurality of abutting members 2. The fixed base 1 is provided with a first through hole 11 along a first direction. The central axis of the first through hole 11 coincides with the central axis of the fixed base 1. The fixed base 1 is provided with positioning grooves 12 at intervals along its circumference. The straight line in the length direction of the positioning groove 12 coincides with the radial extension line of the fixed base 1. The abutting member 2 includes a sliding portion 21 and a abutting portion 22. The abutting portion 22 is connected to the sliding portion 21. The sliding portion 21 is located in the positioning groove 12. The abutting portion 22 is located in the radial extension line of the fixed base 1. At the end of the sliding portion 21 away from the positioning groove 12, the width of the clamping member 2 is greater than the width of the sliding portion 21, and the end of the clamping member 22 close to the sliding portion 21 is abutted against the top wall of the fixed base 1. In this embodiment, the fixed base 1 is in the shape of a circular plate; when in use, the inner wall of the workpiece is pressed against the side wall of the clamping member 22 to fix the workpiece by the clamping member 22. According to the size of the workpiece, the sliding portion 21 is slid along the groove wall of the positioning groove 12, driving the clamping member 22 to slide along the length direction of the positioning groove 12, so that workpieces of different sizes can be clamped and fixed by the clamping member 2.

[0038] Reference Figure 2 In order to fix the position of the clamping member 2 on the fixed base 1, the annular workpiece clamp for the vertical lathe also includes a fastener 3. A plurality of adjustment holes 121 are opened in the positioning groove 12. A plurality of adjustment holes 121 are arranged at intervals along the length direction of the positioning groove 12. The clamping portion 22 is penetrated by a first locking hole 221 along the first direction, and the sliding portion 21 is penetrated by a second locking hole 211 along the first direction. The clamping member 2 is fixedly connected to the fixed base 1 through the fastener 3. Specifically, the fastener 3 passes through the first locking hole 221, the second locking hole 211 and the adjusting hole 121 in sequence. The fastener 3 is threadedly connected to the adjusting hole 121. When the sliding portion 21 slides to a fixed position along the groove wall of the positioning groove 12, the first locking hole 221, the second locking hole 211 and the adjusting hole 121 are aligned, and then fixed through the fastener 3. In this embodiment, the fastener 3 can be a screw or a bolt.

[0039] Reference Figure 2 In this embodiment, the adjusting holes 121 are evenly spaced along the length direction of the positioning groove 12, and a plurality of adjusting holes 121 are spaced perpendicular to the length direction of the positioning groove 12, and the first locking hole 221 is correspondingly arranged with the second locking hole 211. In some embodiments, one or more first locking holes 221 can be provided. In this embodiment, four first locking holes 221 are provided, wherein two first locking holes 221 are spaced along the length direction of the positioning groove 12, and the remaining two first locking holes 221 are spaced perpendicular to the length direction of the positioning groove 12; since each positioning groove 12 is provided with evenly arranged adjusting holes 121, after placing the workpiece on the fixed base 1, the personnel can further judge whether the workpiece is in the center position of the fixed base 1 according to the position of the sliding part 21 in the adjusting hole 121, thereby further improving the accuracy of the clamping position of the workpiece; if the position of the fastening member 2 in the positioning groove 12 is different, it can be adjusted so that the workpiece is in the center position of the fixed base 1 as much as possible.

[0040] Reference Figure 2 and Figure 3 In some embodiments, the clamping portion 22 can be a rectangular plate or a plate with no special shape limitation. Since the workpiece is in a circular shape, in order to further increase the contact area between the clamping portion 22 and the side wall of the workpiece to achieve a more secure fixing effect, in this embodiment, the two parallel sides of the clamping portion 22 in contact with the side wall of the workpiece are arc-shaped, and the arc-shaped opening faces the side close to the first through hole 11, so that the arc-shaped side of the clamping portion 22 can better fit the side wall of the workpiece.

[0041] Reference Figure 3 Since there are some workpieces with smaller thickness, when the clamping portion 22 abuts against the side wall of the workpiece, the side wall of the workpiece may be deformed. Therefore, the top wall of the workpiece can be clamped, and the workpiece can also be fixed. To this end, the clamping portion 22 is slidably connected to the sliding portion 21 along a first direction, so that a clamping area 222 is provided between the clamping portion 22 and the sliding portion 21. The clamping portion 22 slides in the first direction to adjust the height of the clamping area 222 so that the workpiece is located in the clamping area 222, and the clamping portion 22 contacts the top wall of the workpiece, thereby clamping and fixing the workpiece through the clamping portion 22 and the sliding portion 21.

[0042] Reference Figure 3 and Figure 4In order to make the pressing part 22 slide along the first direction, the annular workpiece clamp for the vertical lathe also includes a first adjusting component 4, the first adjusting component 4 includes a telescopic member 41 and a locking nut 42, the telescopic member 41 is arranged parallel to the first direction, the telescopic member 41 includes a fixed part 411 and a movable part 412, the movable part 412 is fixedly connected to the bottom wall of the pressing part 22, the telescopic part is connected to one end of the sliding part 21 close to the pressing part 22, the movable part 412 is slidably connected to one end close to the fixed part 411, and the movable part 412 is sleeved on The fixed portion 411, the movable portion 412 and the fixed portion 411 are fixedly connected by a locking nut 42. Specifically, in the present embodiment, the locking nut 42 is passed through and threadedly connected to the movable portion 412. After the locking nut 42 passes through the movable portion 412, it is pressed against the side wall of the fixed portion 411. By sliding the movable portion 412 along the first direction, the pressing portion 22 is driven to slide along the first direction. One end of the workpiece contacts the sliding portion 21, and the other end contacts the pressing portion 22, so that the sliding portion 21 and the pressing portion 22 clamp and fix the workpiece.

[0043] Reference Figure 4 When the clamping portion 22 needs to be pressed against the top wall of the workpiece, the sliding portion 21 can be fixed to the fixed base 1 by the fastener 3, so that the position of the clamping portion 22 on the fixed base 1 is positioned and fixed. In order to allow the workpiece to be placed stably on the fixed base 1, the height of the sliding member is not higher than the height of the positioning groove 12, so that the workpiece can be placed stably in the clamping area 222.

[0044] Reference Figure 3 and Figure 4 Since the adjustment holes 121 are evenly arranged along the length direction of the positioning groove 12, and when the sliding part 21 is fixed to the fixed base 1, the adjustment hole 121 needs to be aligned with the second locking hole 211, that is, the sliding part 21 can only move a specific distance in the sliding groove 212, and the sizes of the workpieces are different. In order to further enable the pressing part 22 to adapt to workpieces of different sizes, the fixed part 411 of the telescopic member 41 is slidably connected to the sliding part 21 along the length direction of the positioning groove 12, so as to further drive the pressing part 22 to slide along the length direction of the positioning groove 12, that is, when the position of the sliding part 21 in the positioning groove 12 is determined, the position of the pressing part 2 relative to the sliding part 21 can be fine-tuned by sliding the telescopic member 41 along the sliding part 21, thereby further increasing the movement range of the pressing part 2 so that the pressing part 2 can adapt to workpieces of different sizes.

[0045] Reference Figure 4In some embodiments, in order to enable the telescopic member 41 to slide along the sliding portion 21, it can be achieved by the cooperation of the slide groove and the slider, or by the rotational connection between the telescopic member 41 and the screw rod. As long as the driving method extended on the basis of the present application is within the protection scope of the present application, as a preference, the annular workpiece clamp for a vertical lathe also includes a second adjusting component 5, the second adjusting component 5 includes a screw rod 51 and a slider 52, the sliding portion 21 is provided with a slide groove 212 along the length direction of the positioning groove 12, the screw rod 51 is parallel to the length direction of the positioning groove 12, one end of the screw rod 51 is located in the slide groove 212, and the other end passes through the slide groove 2 12 is located outside the sliding part 21, the screw rod 51 is rotatably connected to the sliding part 21, the screw rod 51 is parallel to the length direction of the screw rod 51 along the rotation axis of the sliding part 21, and the end of the fixed part 411 away from the movable part 412 is fixedly connected with a sliding block 52, the sliding block 52 is sleeved on the screw rod 51, the outer peripheral wall of the sliding block 52 is in contact with the groove wall of the sliding groove 212, and the sliding block 52 is slidably connected to the sliding part 21 along the rod length direction of the screw rod 51. The person drives the sliding block 52 to slide by rotating the screw rod 51, and further drives the retaining member 2 to slide through the fixed part 411 and the movable part 412, so that when the sliding member is fixed, the retaining member 2 can be moved to achieve fine adjustment.

[0046] Reference Figure 4 When the clamping member 2 contacts the side wall of the workpiece, the clamping member 2 is driven to slide along the length direction of the positioning groove 12 by rotating the screw 51, so that the clamping member 2 can clamp workpieces of different sizes; when the clamping member 2 contacts the top wall of the workpiece, the clamping member 2 is driven to slide along the length direction of the positioning groove 12 by rotating the screw 51, which can further increase the contact area between the clamping member 2 and the workpiece, so that the clamping member 2 has a better fixing effect on the workpiece.

[0047] The embodiment of the present application is a ring-type workpiece clamp for a vertical lathe, and the implementation principle of the screw rod is as follows: the workpiece is placed above the fixed base 1, and the sliding part 21 is slid according to the size of the workpiece to drive the pressing part 22 to slide along the length direction of the positioning groove 12, so that the pressing part 22 presses against the inner wall of the workpiece, and the pressing part 2 is fixed to the fixed base 1 by the fastener 3;

[0048] When the workpiece is thin, the personnel moves the clamping part 22 along the length direction of the telescopic part 41 to increase the height of the clamping area 222, so that the fastener 3 passes through the second locking hole 211 and the adjustment hole 121 in sequence to fix the sliding part 21 to the fixed base 1, and rotate the screw rod 51 to further drive the clamping part 2 to slide along the rod length direction of the screw rod 51 toward the side close to the workpiece through the telescopic part 41, so that the workpiece is clamped and fixed by the clamping part 22.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A ring-type workpiece fixture for a vertical lathe, characterized in that: It comprises a fixed base (1), a fastening member (2) and a fastening member (3); The fixed base (1) is provided with a first through hole (11) penetrating along a first direction, and the fixed base (1) is provided with a plurality of positioning grooves (12) along its circumference, the positioning grooves (12) are connected to the first through hole (11), and the straight line where the length direction of the positioning grooves (12) is located coincides with the radial extension line of the fixed base (1); One end of the retaining member (2) is located in the positioning groove (12), and the other end is located above the fixed base (1); the retaining member (2) is slidably connected to the fixed base (1) along the groove wall of the positioning groove (12); The positioning groove (12) is provided with a plurality of adjustment holes (121) for positioning the abutting member (2) along a first direction, and the plurality of adjustment holes (121) are evenly spaced along the length direction of the positioning groove (12); the fastener (3) is threadedly connected to the adjustment holes (121) after being passed through the abutting member (2).

2. The annular workpiece fixture for a vertical lathe according to claim 1, characterized in that: The pressing member (2) comprises a sliding portion (21) and a pressing portion (22), wherein the pressing portion (22) is connected to the sliding portion (21), the sliding portion (21) is located in the positioning groove (12), the pressing portion (22) is located on a side of the sliding portion (21) away from the positioning groove (12), and the width of the pressing portion (22) is greater than the width of the sliding portion (21).

3. The annular workpiece fixture for a vertical lathe according to claim 2, characterized in that: The abutting portion (22) is slidably connected to the sliding portion (21) along the first direction, so that a clamping area (222) is formed by the abutting portion (22) and the sliding portion (21) in the first direction.

4. The annular workpiece fixture for a vertical lathe according to claim 3, characterized in that: It also includes a first adjustment component (4), wherein the first adjustment component (4) includes a telescopic member (41) and a locking nut (42); The telescopic member (41) is parallel to the first direction. The telescopic member (41) is located between the abutting portion (22) and the sliding portion (21). The telescopic member (41) comprises a movable portion (412) and a fixed portion (411). The movable portion (412) is fixedly connected to the abutting portion (22). The fixed portion (411) is connected to the movable portion (412). One end of the movable portion (412) close to the fixed portion (411) is slidably connected. The locking nut (42) is used to fix the movable portion (412) and the fixed portion (411).

5. The annular workpiece fixture for a vertical lathe according to claim 4, characterized in that: The height of the sliding portion (21) is not higher than the height of the positioning groove (12).

6. The annular workpiece fixture for a vertical lathe according to claim 5, characterized in that: The fixing portion (411) of the telescopic member (41) is slidably connected to the sliding portion (21) along the length direction of the positioning groove (12).

7. The annular workpiece fixture for a vertical lathe according to claim 6, characterized in that: The invention also comprises a second adjusting component (5), wherein the second adjusting component (5) comprises a screw rod (51) and a sliding block (52), wherein the sliding portion (21) is provided with a sliding groove (212) along the length direction of the positioning groove (12), the screw rod (51) is parallel to the length direction of the positioning groove (12), one end of the screw rod (51) is located in the sliding groove (212), and the other end of the screw rod (51) is located outside the sliding portion (21) after passing through the sliding groove (212), and the screw rod (51) is rotatably connected to the sliding portion (21) On the sliding part (21), the screw rod (51) is parallel to the length direction of the positioning groove (12) along the rotation axis of the sliding part (21), and the end of the fixed part (411) away from the movable part (412) is fixedly connected to the sliding block (52), and the sliding block (52) is sleeved on the screw rod (51), and the outer peripheral wall of the sliding block (52) is in contact with the groove wall of the sliding groove (212), and the fixed part (411) slides along the rod length direction of the screw rod (51).

8. The annular workpiece fixture for a vertical lathe according to claim 2, characterized in that: The two parallel sides of the abutting portion (22) are arc-shaped, and the arc-shaped opening faces the side close to the first through hole (11).

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