Novel lathe center frame device

Abstract

The utility model discloses a novel lathe center frame device, and relates to the technical field of lathe center frames. Comprising a bottom frame and a top frame which are detachably connected. The bottom frame is arranged in a U shape, a pressing plate is installed at the bottom of the bottom frame and suitable for being installed in a lathe guide rail, and a connecting groove is formed in the bottom of the bottom frame and connected with the lathe guide rail. The bottom frame and the top frame are each provided with a jacking assembly, each jacking assembly comprises a guide sleeve, the guide sleeves are fixedly installed in the bottom frame or the top frame, adjusting pieces are installed in the guide sleeves, jacking head bodies are installed at the ends of the adjusting pieces, rolling wheels are installed on the jacking head bodies, and the rolling wheels are suitable for being movably connected with the surface of a workpiece; the top frame is downwards provided with a circular run-out detection piece which is suitable for detecting circular run-out of the surface of the workpiece. According to the utility model, the technical segmentation of circle run-out detection and cleaning in the prior art is solved, and the technical effects of workpiece surface cleaning and circle run-out detection are realized by integrating the central frame.

Description

Technical Field

[0001] The utility model relates to the technical field of a machine tool center frame, in particular to a new lathe center frame device. Background Art

[0002] The center stand is an auxiliary device that radially supports the workpiece during processing. In the machining industry, especially in the cutting of shaft workpieces, the center stand is often used. When machining shaft workpieces, in order to prevent the workpiece from bending and deformation due to the radial cutting force, the center stand is often used as an auxiliary support to increase the rigidity of the workpiece.

[0003] 1) In the prior art, the surface circular runout of shaft-type workpieces mostly needs to be detected, so it is common to set a separate circular runout detection component on the machine tool, which takes up space;

[0004] 2) Currently, most workpieces are stored on the ground inside the factory. Therefore, the surface needs to be cleaned separately during surface inspection to prevent interference from circular runout. Therefore, there is a lack of cleaning parts to clean the workpiece surface.

[0005] 3) The three evenly distributed clamping components on the traditional center frame are installed on the center frame body through threads. After long-term use, the threads of the clamping rods are easily damaged under the action of the radial cutting force on the workpiece, causing the clamping rods to loosen, resulting in the workpiece jumping during processing, which seriously affects the processing quality of the workpiece.

[0006] In view of this, the present utility model is proposed. Utility Model Content

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A new lathe center frame device comprises a bottom frame and a top frame, wherein the top frame is detachably connected to the bottom frame; the bottom frame is arranged in a U shape, and a pressing plate is installed at the bottom of the bottom frame, wherein the pressing plate is suitable for being installed in a lathe guide rail, and a connecting groove is arranged at the bottom of the bottom frame, wherein the connecting groove is connected to the lathe guide rail;

[0009] The bottom frame and the top frame are both equipped with a tightening assembly, the tightening assembly includes a guide sleeve, the guide sleeve is fixedly installed in the bottom frame or the top frame, an adjusting member is installed in the guide sleeve, a head body is installed at the end of the adjusting member, and a roller is installed on the head body, and the roller is suitable for active connection with the surface of the workpiece;

[0010] A circular runout detection member is mounted downwardly on the top frame, and the circular runout detection member is suitable for detecting the circular runout of the workpiece surface.

[0011] In a further technical solution, cleaning pieces are symmetrically installed in the bottom frame, and cleaning wheels are installed on the cleaning pieces, and the cleaning wheels are suitable for cleaning the surface of the workpiece.

[0012] In a further technical solution, fixing holes are opened on both sides of the bottom frame, and the inner walls of the fixing holes are fixedly connected to the outer wall of the guide sleeve;

[0013] The adjusting member comprises a sliding sleeve and a stop sleeve, one end of the sliding sleeve is installed in the guide sleeve, and the other end extends into the bottom frame;

[0014] The bottom end of the guide sleeve is suitable for extending outside the fixing hole, and the inside is fixedly connected with the stop sleeve, and a press-fit type injection oil cup is provided outside the guide sleeve.

[0015] In a further technical solution, the adjusting member further comprises an adjusting screw, one end of which is mounted in the sliding sleeve, and the other end of which extends out of the guide sleeve and is provided with a position hole, wherein the position hole is suitable for mounting a locking screw and a handle member is fixedly mounted therein;

[0016] The adjusting screw rod is provided with a convex shaft portion, and the stop sleeve is provided with a notch portion on a side opposite to the sliding sleeve, and the convex shaft portion is matched with the notch portion.

[0017] In a further technical solution, a threaded mounting opening is provided on one side of the sliding sleeve opposite to the stop sleeve, and the top of the adjusting screw is threadedly connected to the threaded mounting opening;

[0018] A clamping screw is installed outside the guide sleeve, and the rod of the clamping screw is inserted into the bottom frame and abuts against the sliding sleeve.

[0019] In a further technical solution, the top end of the sliding sleeve is threadedly connected to a head body, a rotary bearing is installed in the head body, a head shaft is installed in the rotary bearing, and the head shaft is connected to the roller.

[0020] In a further technical solution, the pressing plate is C-shaped and arranged downward, connecting screws are installed between the pressing plate and the bottom frame, and the ends of the connecting screws are located inside the pressing plate.

[0021] In a further technical solution, fixed clamps are installed at the tops of both ends of the bottom frame, a rotating plate is installed inside the fixed clamps, and a threaded column is fixedly installed at one end of the rotating plate;

[0022] Fixed opening blocks are provided at both ends of the top frame, and connecting holes are provided in the fixed opening blocks. The connecting holes are suitable for inserting threaded columns, and locking nuts are installed on the threaded columns to fix the fixed opening blocks outside the threaded columns.

[0023] In a further technical solution, the circular runout detection member includes a fixed plate, the fixed plate is detachably connected to the top frame, a vertical adjustment rod is provided at the bottom of the fixed plate, the vertical adjustment rod is a threaded rod, a circular runout detector is installed at the bottom of the vertical adjustment rod and a connecting bearing is installed between the vertical adjustment rod, the top of the vertical adjustment rod passes through the fixed plate and is installed with a positioning nut, and the circular runout detector is suitable for detecting the circular runout of the workpiece downward;

[0024] A threaded ring is also arranged in the fixing plate. The threaded ring is suitable for being threadedly connected with a protective sleeve. The protective sleeve is detachably connected to the threaded ring.

[0025] In a further technical solution, the cleaning member includes a stud rod and a guide rod, the guide rod is fixedly connected to the bottom frame, and one end of the guide rod is located inside the bottom frame and is provided with a baffle, and the other end extends outside the bottom frame;

[0026] One end of the stud rod extends into the bottom frame and is installed with a support plate, a cleaning wheel is installed outside the support plate, a cleaning cloth is sleeved on the cleaning wheel, the cleaning cloth is suitable for abutting against the workpiece, and the bottom of the support plate is suitable for adjusting between the baffle and the bottom frame;

[0027] A positioning plate is fixedly connected to the guide rod outside the bottom frame, and a positioning hole is opened on the positioning plate. The positioning hole and the stud rod are detachably connected by installing a fixing nut.

[0028] Beneficial effects:

[0029] 1. The utility model adopts a U-shaped bottom frame and a top frame. The connection method of the sliding sleeve and the adjusting screw adopted by the tightening component enables the sliding sleeve to slide up and down along the sliding grooves on both sides. The adjusting screw is adopted at the bottom to form a threaded connection with the inside of the sliding sleeve. The sliding sleeve is driven to slide along the sliding groove by rotating the adjusting screw, and the adjusting screw does not need to move because of the convex shaft part and the handle.

[0030] 2. The utility model realizes the detection of the circular runout of the workpiece surface downward by setting the circular runout detection part under the top frame, connects the fixed plate with the top frame, reduces the installation of the supporting parts of the circular runout detection part on one side of the machine tool in the traditional way, and the up and down adjustment by the vertical adjustment rod has a simple structure and good practicality.

[0031] 3. The utility model installs support plates on both sides, and the cleaning wheels on the support plates clean the surface of the rated shaft workpiece in the rolling state, thereby cleaning the surface in advance and reducing the interference with the circular runout detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] In the attached picture:

[0034] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0035] Figure 2 for Figure 1 A magnified view of part A;

[0036] Figure 3 It is a side view of the center frame of the utility model;

[0037] Figure 4 for Figure 3 A magnified view of part B;

[0038] Figure 5 It is a schematic diagram of a fixing plate of the utility model;

[0039] Figure 6 for Figure 3 CC cross-section diagram;

[0040] Figure 7 for Figure 6 A magnified view of the D portion;

[0041] Figure 8 This is another structural schematic diagram of the utility model.

[0042] In the figure: 1. bottom frame; 2. top frame; 3. pressure plate; 4. connecting groove; 5. guide sleeve; 6. head body; 7. roller; 8. circular runout detection part; 9. cleaning part; 10. sliding sleeve; 11. stop sleeve; 12. press-fit oil injection cup; 13. adjusting screw; 14. handle piece; 15. convex shaft part; 16. threaded mounting port; 17. clamping screw; 20. rotating bearing; 21. connecting screw; 22. fixing clamp block; 23. rotating plate; 24. threaded column; 25. fixing opening block; 26. locking nut; 27. fixing plate; 28. vertical adjustment rod; 29. ​​circular runout detector; 30. threaded ring; 31. protective sleeve; 32. stud rod; 33. guide rod; 34. baffle; 35. support plate; 36. positioning plate; 37. cleaning wheel; 100. workpiece. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0044] The application principle of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] Example 1

[0046] like Figures 1 to 7 As shown, it is an implementation scheme of the utility model, a new lathe center frame device, including a bottom frame 1 and a top frame 2, the top frame 2 is detachably connected to the bottom frame 1; the bottom frame 1 is U-shaped, and a pressing plate 3 is installed at the bottom of the bottom frame 1, the pressing plate 3 is suitable for being installed in the lathe guide rail, and a connecting groove 4 is provided at the bottom of the bottom frame 1, and the connecting groove 4 is connected to the lathe guide rail; the pressing plate 3 is C-shaped and arranged downward, and a connecting screw 21 is installed between the pressing plate 3 and the bottom frame 1, and the end of the connecting screw 21 is located in the pressing plate 3.

[0047] A tightening assembly is installed on both the bottom frame 1 and the top frame 2. The tightening assembly includes a guide sleeve 5, which is fixedly installed in the bottom frame 1 or the top frame 2. An adjusting member is installed in the guide sleeve 5. A head body 6 is installed at the end of the adjusting member. A roller 7 is installed on the head body 6. The roller 7 is suitable for active connection with the surface of the workpiece 100.

[0048] A circular runout detection member 8 is mounted downwardly on the top frame 2 , and the circular runout detection member 8 is suitable for detecting the circular runout of the surface of the workpiece 100 .

[0049] The bottom frame 1 is provided with fixing holes on both sides, and the inner wall of the fixing hole is fixedly connected to the outer wall of the guide sleeve 5; the adjusting member includes a sliding sleeve 10 and a stopper sleeve 11, one end of the sliding sleeve 10 is installed in the guide sleeve 5, and the other end extends into the bottom frame 1; the bottom end of the guide sleeve 5 is suitable for extending outside the fixing hole, and the inside is fixedly connected to the stopper sleeve 11, and a press-fitting pressure injection oil cup 12 is provided outside the guide sleeve 5. The adjusting member also includes an adjusting screw 13, one end of the adjusting screw 13 is installed in the sliding sleeve 10, and the other end of the adjusting screw 13 extends outside the guide sleeve 5 and is provided with a position hole, and the position hole is suitable for installing a locking screw and a handle 14 is fixedly installed; a convex shaft portion 15 is provided on the adjusting screw 13, and a notch portion is provided on the side of the stopper sleeve 11 relative to the sliding sleeve 10, and the convex shaft portion 15 is adapted to the notch portion. The convex shaft portion 15 and the handle 14 realize the upper and lower limit of the adjusting screw 13.

[0050] A threaded installation opening 16 is provided on one side of the sliding sleeve 10 opposite to the stopper sleeve 11, and the top of the adjusting screw 13 is threadedly connected to the threaded installation opening 16; a clamping screw 17 is installed outside the guide sleeve 5, and the rod of the clamping screw 17 is inserted into the bottom frame 1 and abuts against the sliding sleeve 10. When in use, the sliding sleeve 10 is driven to rotate and advance in the guide sleeve 5 through the threaded connection by rotating the adjusting screw 13, and the spacing between the three groups of sliding sleeves 10 is adjusted to achieve the installation of the workpiece 100 corresponding to different signals.

[0051] The top end of the sliding sleeve 10 is threadedly connected with a head body 6 , a rotary bearing 20 is installed in the head body 6 , a head shaft is installed in the rotary bearing 20 , and the head shaft is connected to the roller 7 .

[0052] The top of both ends of the bottom frame 1 is provided with a fixed clamping block 22, a rotating plate 23 is installed inside the fixed clamping block 22, and a threaded column 24 is fixedly installed at one end of the rotating plate 23; the two ends of the top frame 2 are provided with a fixed opening block 25, and a connecting hole is provided inside the fixed opening block 25, and the connecting hole is suitable for inserting the threaded column 24, and a locking nut 26 is installed on the threaded column 24 to fix the fixed opening block 25 outside the threaded column 24. During installation, the rotating plate 23 is rotated upward, and the threaded column 24 passes through the fixed opening block, and then the locking nut 26 is rotated along the threaded column 24 to lock it.

[0053] The circular runout detection part 8 includes a fixed plate 27, which is detachably connected to the top frame 2. A vertical adjustment rod 28 is provided at the bottom of the fixed plate 27. The vertical adjustment rod 28 is a threaded rod. A circular runout detector 29 is installed at the bottom of the vertical adjustment rod 28 and a connecting bearing is installed between them. The top of the vertical adjustment rod 28 passes through the fixed plate 27 and is installed with a positioning nut. The circular runout detector 29 is suitable for detecting the circular runout of the workpiece 100 downward; a threaded ring 30 is also provided in the fixed plate 27. The threaded ring 30 is suitable for being threadedly connected with a protective sleeve 31, and the protective sleeve 31 is detachably connected to the threaded ring 30.

[0054] When in use, by removing the positioning nut, adjusting the position of the vertical adjustment rod 28 on the fixed plate 27, and adjusting the height of the circular runout detector 29, different diameters of workpieces 100 can be coped with, and the protective sleeve 31 can be set to be transparent. Because it is not used continuously or part of the workpiece does not need to be used, the protective sleeve 31 can ensure the protection of the detection end of the circular runout detector.

[0055] Example 2

[0056] As shown Figure 8As shown, another embodiment of the utility model is shown. On the basis of embodiment 1, in order to clean the surface of the workpiece without manual cleaning, a cleaning member 9 is symmetrically installed in the bottom frame 1, and a cleaning wheel 37 is installed on the cleaning member 9. The cleaning wheel 37 is suitable for cleaning the surface of the workpiece 100. The cleaning member 9 should be installed in the bottom frame 1 and before the circular runout detection member 8, so as to clean the surface and reduce the interference of surface dirt on the circular runout detection.

[0057] The cleaning member 9 includes a stud rod 32 and a guide rod 33, wherein the guide rod 33 is fixedly connected to the bottom frame 1, and one end of the guide rod 33 is located inside the bottom frame 1 and is provided with a baffle 34, and the other end of the guide rod 33 extends outside the bottom frame 1;

[0058] One end of the stud rod 32 extends into the bottom frame 1 and is installed with a support plate 35. A cleaning wheel 37 is installed outside the support plate 35. A cleaning cloth is sleeved on the cleaning wheel 37. The cleaning cloth is suitable for abutting against the workpiece 100. The bottom of the support plate 35 is suitable for adjustment between the baffle 34 and the bottom frame 1. A positioning plate 36 is fixedly connected to the guide rod 33 outside the bottom frame 1. The positioning plate 36 is provided with a positioning hole. The positioning hole and the stud rod 32 are detachably connected by installing a fixing nut. Before the workpiece 100 rotates, the workpiece is positioned and installed, and the support plate 35 is adjusted so that the cleaning wheel on the support plate 35 can abut against the surface of the workpiece and be located inside the bottom frame 1, so as to achieve cleaning before the circular runout detection.

[0059] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0060] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new lathe center frame device, characterized in that: The invention comprises a bottom frame (1) and a top frame (2), wherein the top frame (2) is detachably connected to the bottom frame (1); the bottom frame (1) is arranged in a U-shape, and a pressing plate (3) is installed at the bottom of the bottom frame (1), wherein the pressing plate (3) is suitable for being installed in a lathe guide rail; and a connecting groove (4) is arranged at the bottom of the bottom frame (1), wherein the connecting groove (4) is connected to the lathe guide rail; The bottom frame (1) and the top frame (2) are both provided with a tightening assembly, the tightening assembly comprising a guide sleeve (5), the guide sleeve (5) being fixedly installed in the bottom frame (1) or the top frame (2), an adjusting member being installed in the guide sleeve (5), a head body (6) being installed at the end of the adjusting member, and a roller (7) being installed on the head body (6), the roller (7) being adapted to be movably connected to the surface of the workpiece (100); A circular runout detection member (8) is mounted downwardly on the top frame (2), and the circular runout detection member (8) is suitable for detecting the circular runout of the surface of the workpiece (100).

2. A new lathe center frame device according to claim 1, characterized in that: A cleaning piece (9) is symmetrically installed in the bottom frame (1), and a cleaning wheel (37) is installed on the cleaning piece (9). The cleaning wheel (37) is suitable for cleaning the surface of the workpiece (100).

3. A new lathe center frame device according to claim 1, characterized in that: The bottom frame (1) has fixing holes on both sides, and the inner walls of the fixing holes are fixedly connected to the outer wall of the guide sleeve (5); The adjusting member comprises a sliding sleeve (10) and a stop sleeve (11); one end of the sliding sleeve (10) is installed in the guide sleeve (5), and the other end extends into the bottom frame (1); The bottom end of the guide sleeve (5) is adapted to extend outside the fixing hole and is fixedly connected to the stop sleeve (11) inside. A press-fit oil injection cup (12) is provided outside the guide sleeve (5).

4. A new lathe center frame device according to claim 3, characterized in that: The adjusting member further comprises an adjusting screw (13), one end of which is mounted in the sliding sleeve (10), and the other end of which extends out of the guide sleeve (5) and is provided with a position hole, wherein a locking screw is installed in the position hole and a handle member (14) is fixedly installed therein; The adjusting screw rod (13) is provided with a convex shaft portion (15), and the stop sleeve (11) is provided with a notch portion on one side opposite to the sliding sleeve (10), and the convex shaft portion (15) is matched with the notch portion.

5. A new lathe center frame device according to claim 4, characterized in that: A threaded mounting opening (16) is provided on one side of the sliding sleeve (10) opposite to the stop sleeve (11), and the top of the adjusting screw (13) is threadedly connected to the threaded mounting opening (16); A clamping screw (17) is installed outside the guide sleeve (5), and the shaft of the clamping screw (17) is suitable for being inserted into the bottom frame (1) and abutting against the sliding sleeve (10).

6. A new lathe center frame device according to claim 3, characterized in that: The top end of the sliding sleeve (10) is threadedly connected to a head body (6), a rotary bearing (20) is installed in the head body (6), a head shaft is installed in the rotary bearing (20), and the head shaft is connected to a roller (7).

7. A new lathe center frame device according to claim 1, characterized in that: The pressing plate (3) is C-shaped and arranged downwardly, and a connecting screw (21) is installed between the pressing plate (3) and the bottom frame (1), and the end of the connecting screw (21) is located inside the pressing plate (3).

8. The new lathe center frame device according to claim 2 is characterized in that: Fixed clamping blocks (22) are installed at the tops of both ends of the bottom frame (1), a rotating plate (23) is installed inside the fixed clamping blocks (22), and a threaded column (24) is fixedly installed at one end of the rotating plate (23); Both ends of the top frame (2) are provided with fixed opening blocks (25), and connection holes are arranged inside the fixed opening blocks (25), and the connection holes are suitable for inserting the threaded column (24), and locking nuts (26) are installed on the threaded column (24) to fix the fixed opening blocks (25) outside the threaded column (24).

9. A new lathe center frame device according to claim 1, characterized in that: The circular runout detection member (8) comprises a fixing plate (27), the fixing plate (27) being detachably connected to the top frame (2), a vertical adjustment rod (28) being provided at the bottom of the fixing plate (27), the vertical adjustment rod (28) being a threaded rod, a circular runout detector (29) being installed at the bottom of the vertical adjustment rod (28) and a connecting bearing being installed therebetween, the top of the vertical adjustment rod (28) passing through the fixing plate (27) and being installed with a positioning nut, the circular runout detector (29) being suitable for detecting the circular runout of the workpiece (100) downwards; A threaded ring (30) is also arranged inside the fixing plate (27). The threaded ring (30) is suitable for being threadedly connected with a protective sleeve (31). The protective sleeve (31) is detachably connected to the threaded ring (30).

10. The new lathe center frame device according to claim 8, characterized in that: The cleaning member (9) comprises a stud rod (32) and a guide rod (33); the guide rod (33) is fixedly connected to the bottom frame (1), one end of the guide rod (33) is located inside the bottom frame (1) and is provided with a baffle (34), and the other end of the guide rod (33) extends outside the bottom frame (1); One end of the stud rod (32) extends into the bottom frame (1) and is installed with a support plate (35), a cleaning wheel (37) is installed outside the support plate (35), a cleaning cloth is sleeved on the cleaning wheel (37), and the cleaning cloth is suitable for abutting against the workpiece (100), and the bottom of the support plate (35) is suitable for adjusting between the baffle (34) and the bottom frame (1); A positioning plate (36) is fixedly connected to the guide rod (33) outside the bottom frame (1), and a positioning hole is provided on the positioning plate (36). The positioning hole is detachably connected to the stud rod (32) by installing a fixing nut.

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