Adjustable center frame

Abstract

The present application relates to an adjustable center frame, and to the technical field of clamping and positioning equipment; the adjustable center frame includes a base, an abutment frame and a plurality of support seats, the plurality of support seats are respectively located at the two ends of the base along its own length direction, each of the support seats is slidably connected to the base, and the sliding direction of each of the support seats is the length direction of the base. The present application has the following effects: relevant personnel can change the gap between the support seats by adjusting the position of the support seats, thereby changing the abutment position of the support seats on the workpiece, adapting to workpieces of different sizes, so that the machining centers of workpieces of different sizes can be maintained at the same height, and then the center frame of the present application can process workpieces of different sizes, so that relevant personnel do not need to replace the center frame, thereby ensuring the processing efficiency of the workpiece, facilitating the operation of relevant personnel, and also saving manpower, material and financial resources.

Description

Technical Field

[0001] The present application relates to the technical field of clamping and positioning equipment, and in particular to an adjustable center frame. Background Art

[0002] With the continuous development of social economy and the increasing level of science and technology, my country's manufacturing industry is also booming. Machine tools and other processing equipment, as equipment for manufacturing workpieces in the manufacturing industry, play a major role in the construction of national economic modernization. In machining, especially in the cutting of longer workpieces such as bearings, in order to prevent the workpiece from bending and deforming under the action of radial cutting force, a center frame is often used as an auxiliary support to ensure the quality and accuracy of the workpiece after machining.

[0003] There is a center frame in the prior art, which includes a base, which is used to be installed on the processing equipment, and two support seats are fixedly connected to the base by welding. The two support seats are respectively located on both sides of the base along its own length direction, and each support seat is provided with a material stripping part on one end close to the other support seat. The base is also provided with an abutment frame, which is located above the support seat and is used to abut against the top of the workpiece. When in use, the workpiece to be processed is first placed between the two support seats so that the support part abuts against the bottom of the workpiece, and then the bottom end of the abutment frame abuts against the top of the workpiece to achieve three-point fixation of the workpiece, so that the center of the workpiece (machining center) corresponds to the moving axis or rotation axis of the tool in the machine tool and other manufacturing equipment.

[0004] Regarding the related technologies mentioned above, since the positions of the two support seats are fixed in the prior art, when workpieces of different sizes need to be processed, the machining center on which the workpiece is placed on the support seat will change, making it difficult for the workpiece to match the existing center frame, which greatly increases the difficulty of processing the workpiece, and thus requires relevant personnel to replace the center frame in order to process workpieces of different sizes, which reduces the processing efficiency of the workpiece. Utility Model Content

[0005] In order to enable the center frame to adapt to workpieces of different sizes, the present application provides an adjustable center frame.

[0006] The present application provides an adjustable center frame, which adopts the following technical solution:

[0007] An adjustable center frame comprises a base, an abutment frame and a plurality of support seats, wherein the plurality of support seats are respectively located at two ends of the base along its own length direction, each of the support seats is slidably connected to the base, and the sliding direction of each of the support seats is the length direction of the base.

[0008] By adopting the above technical scheme, compared with the setting method of fixing the support seat on the base in the prior art, the present application sets the sliding connection of the support seat, so that relevant personnel can adjust the position of the support seat, change the gap between the support seats, and change the abutment position of the support seat on the workpiece, so as to adapt to workpieces of different sizes, so that the machining centers of workpieces of different sizes can be maintained at the same height, and then the center frame of the present application can process workpieces of different sizes, reducing the difficulty of machining the workpiece, so that relevant personnel do not need to replace the center frame, thereby ensuring the machining efficiency of the workpiece, facilitating the operation of relevant personnel, and also saving manpower, material and financial resources.

[0009] Preferably, the base is further provided with an elevated frame, the top of which is higher than the supporting seat, the elevated frame is further provided with a bogie, the bogie is rotatably connected to the elevated frame, and the abutment frame is provided on the elevated frame.

[0010] By adopting the above technical solution, the raising frame and the bogie are arranged so that when the workpiece needs to be placed on the support seat, the relevant personnel can rotate the bogie to move the raising frame from above the support seat to other positions, thereby making way for the workpiece, thereby facilitating the placement of the workpiece by the relevant personnel.

[0011] Preferably, an adjusting screw is further provided on the steering frame, the bottom end of the adjusting screw passes through the bogie and is threadedly connected to the bogie, and the bottom end of the adjusting screw is rotatably connected to the abutment frame.

[0012] By adopting the above technical solution and setting the adjusting screw, relevant personnel can rotate the adjusting screw to cause the adjusting screw to move along its own axis, thereby driving the abutment frame to move, thereby adjusting the height of the abutment frame, so that the bottom end of the abutment frame can abut against the top end of workpieces of different sizes, thereby achieving auxiliary fixation of the workpiece at the top.

[0013] Preferably, a knob is also provided on the top end of the adjusting screw.

[0014] By adopting the above technical solution and setting the knob, relevant personnel can drive the adjusting screw connected to the knob to rotate by rotating the knob, thereby realizing the driving of the adjusting screw, effectively facilitating the rotation of the adjusting screw by relevant personnel and increasing the efficiency of relevant personnel in adjusting the abutment frame.

[0015] Preferably, a slide rail is further provided on the base, and the extension direction of the slide rail is the length direction of the base, and each of the supporting seats is slidably connected to the base via the slide rail.

[0016] By adopting the above technical solution, the slide rail is set so that each support seat can be slidably connected to the base through the slide rail, thereby increasing the stability of the support seat when sliding. At the same time, the presence of the slide rail can also reduce the wear of the support seat when sliding, thereby further ensuring the stability of the support seat when sliding.

[0017] Preferably, a plurality of transverse positioning holes are provided on a side wall of the support seat along the width direction of the base, the transverse positioning holes are connected to the side wall of the slide rail, and a thread is provided on the inner side wall of each of the transverse positioning holes.

[0018] By adopting the above technical solution and setting the transverse positioning hole, relevant personnel can screw the bolt into the transverse positioning hole and make the end of the bolt abut against the side wall of the slide rail, thereby achieving the fixation between the support seat and the slide rail, and then achieving the locking of the support seat, reducing the chance of accidental slippage of the support seat.

[0019] Preferably, the support seat is further provided with an extension portion on one side along the width direction of the base, a plurality of longitudinal positioning grooves are penetrated through the top wall of the extension portion, and a plurality of connecting holes are also provided on the top wall of the base, and the connecting holes correspond to the longitudinal positioning grooves.

[0020] By adopting the above technical solution, the longitudinal positioning groove and the connecting hole are set, so that relevant personnel can install screws in the longitudinal positioning groove and the connecting hole, so that the extension part and the base frame are directly fixedly connected by the screws in the longitudinal positioning groove and the connecting hole, and the support seat is limited, thereby further increasing the stability of the support seat after fixation and reducing the probability of accidental slippage of the support seat.

[0021] Preferably, an additional frame is provided on the top of the supporting seat, and the additional frame is tilted downward. A contact gasket is also provided on the additional frame, and the contact gasket is used to abut against the bottom of the workpiece.

[0022] By adopting the above-mentioned technical solution and setting up an additional frame, when fixing a smaller workpiece, relevant personnel can increase the support height by installing the additional frame on the support seat, so that the bottom of the workpiece is against the contact gasket, thereby supporting the smaller workpiece, so that the machining center of the smaller workpiece can still be on the moving axis or the rotating axis of the tool in the machining equipment, thereby increasing the scope of application and practicality of the present application.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The setting of the sliding connection of the support seat enables the relevant personnel to adjust the position of the support seat, change the gap between the support seats, and change the abutment position of the support seat on the workpiece, so as to adapt to workpieces of different sizes, so that the machining centers of workpieces of different sizes can be maintained at the same height, and then the center frame of the present application can process workpieces of different sizes, reducing the difficulty of machining the workpiece, so that the relevant personnel do not need to replace the center frame, thereby ensuring the machining efficiency of the workpiece, facilitating the operation of the relevant personnel, and saving manpower, material and financial resources;

[0025] 2. The setting of the heightening frame and the bogie frame enables the relevant personnel to rotate the bogie frame to move the heightening frame from above the support frame to other positions when the workpiece needs to be placed on the support seat, thereby making way for the workpiece, thereby facilitating the placement of the workpiece by the relevant personnel;

[0026] 3. The setting of the additional frame enables relevant personnel to increase the support height by installing the additional frame on the support seat when fixing smaller workpieces, so that the bottom of the workpiece is against the contact gasket, thereby supporting the smaller workpiece, so that the machining center of the smaller workpiece can still be on the moving axis or rotating axis of the tool in the machining equipment, thereby increasing the scope of application and practicality of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram used to illustrate the overall structure of the adjustable center frame in the embodiment of the present application.

[0028] Figure 2 It is a structural schematic diagram used to reflect the fixing hole in the embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram used to reflect the extension part in the embodiment of the present application.

[0030] Figure 4 It is a structural schematic diagram used to reflect the additional rack in the embodiment of the present application.

[0031] Explanation of the accompanying drawings: 1. base; 11. connecting hole; 2. abutment frame; 3. support seat; 31. inclined surface; 32. transverse positioning hole; 4. slide rail; 5. extension part; 51. longitudinal positioning groove; 6. heightening frame; 7. bogie; 8. adjusting screw; 81. knob; 9. additional frame; 91. contact gasket. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] Embodiment 1:

[0034] Embodiment 1 of the present application discloses an adjustable center frame. Figure 1 The adjustable center frame includes a base 1, an abutment frame 2 and a plurality of support seats 3. The plurality of support seats 3 are respectively located at both ends of the base 1 along its own length direction. Each support seat 3 is slidably connected to the base 1, and the sliding direction of each support seat 3 is the length direction of the base 1.

[0035] Reference Figure 1 , a fixing frame is also provided at one end of the base 1 along its own length, the frame is fixedly connected to the base 1 by bolts, and the frame is used to be installed on a processing equipment such as a machine tool to achieve the installation of the base 1. In the embodiment of the present application, the number of the support seats 3 is set to two, and the two support seats 3 are respectively located at the two ends of the base 1 along its own length direction. In other embodiments, the support seats 3 can also be arranged into several groups, each group is provided with two support seats 3, so as to increase the support effect on the workpiece.

[0036] Reference Figure 1 and Figure 2 On the top of each support seat 3, the side close to the other support seat 3 is tilted downward to form an inclined surface 31 to contact and abut against the bottom of the workpiece. In the embodiment of the present application, the material of the support seat 3 is set to be hard alloy, so that the surface of the support seat 3 has a wear-resistant effect, and at the same time, the flatness of the inclined surface 31 is improved, reducing the adverse effect on the quality of the workpiece.

[0037] Reference Figure 1 and Figure 2 The base 1 is provided with a slide rail 4, the extension direction of the slide rail 4 is the length direction of the base 1, and the slide rail 4 is fixedly connected to the top of the base 1 by bolts. Each support seat 3 is slidably connected to the base 1 through the slide rail 4, and the sliding direction of each support seat 3 is the extension direction of the slide rail 4.

[0038] Reference Figure 1 and Figure 2 , each support seat 3 is provided with a plurality of transverse positioning holes 32 on one side wall along the width direction of the base 1. In the embodiment of the present application, the number of transverse positioning holes 32 on each support seat 3 is set to three, and the three transverse positioning holes 32 are arranged equidistantly along the extension direction of the slide rail 4. A thread is provided on the inner side wall of each transverse positioning hole 32, so that relevant personnel can connect a bolt with the transverse positioning hole 32, and make the end of the bolt abut against the side wall of the slide rail 4, so as to lock the support seat 3.

[0039] Reference Figure 1 and Figure 3An extension portion 5 is provided on one side of each support seat 3 away from the transverse positioning hole 32. The extension portion 5 is fixedly connected to the side wall of the corresponding support seat 3. The bottom wall of the extension portion 5 is at the same height as the bottom wall of the support seat 3 to increase the stability of the support seat 3 when sliding.

[0040] Reference Figure 1 and Figure 3 , a plurality of longitudinal positioning grooves 51 are formed on the top wall of each extension portion 5, and the cross section of each longitudinal positioning groove 51 is a rectangle with four rounded chamfered corners, so that after adjusting the position of the support seat 3, the fixing screws can still be located in the longitudinal positioning grooves 51, thereby achieving the effect of reducing the number of holes corresponding to the longitudinal positioning grooves 51 on the base 1. In the embodiment of the present application, the number of longitudinal positioning grooves 51 on each support seat 3 is set to two, and the two longitudinal positioning grooves 51 are respectively located at the two ends of the extension portion 5 along the extension direction of the slide rail 4.

[0041] Reference Figure 1 and Figure 3 A plurality of connection holes 11 are also provided on the top wall of the base 1. In the embodiment of the present application, the number of the connection holes 11 is set to four, and the connection holes 11 correspond to the longitudinal positioning grooves 51 one by one, so that the screws can reach the connection holes 11 from the longitudinal positioning grooves 51, thereby realizing a direct connection between the extension portion 5 and the base 1, thereby limiting the support seat 3.

[0042] Reference Figure 1 The base 1 is also provided with a heightening frame 6 at one end along its length direction, and the bottom end of the heightening frame 6 is fixedly connected to the side wall of the base 1 by a plurality of bolts. In other embodiments, the heightening frame 6 can also be fixedly connected to the base 1 by welding. The top end of the heightening frame 6 extends vertically upward, and the top end of the heightening frame 6 is higher than the top end of the support seat 3.

[0043] Reference Figure 1 A bogie 7 is also provided on the heightening frame 6, one end of the bogie 7 is rotatably connected to the heightening frame 6 through a pin, and the abutment frame 2 is provided on the other end of the bogie 7. An adjusting screw 8 is also provided on the bogie 7, and the axis of the adjusting screw 8 is vertically arranged, and the axis of the adjusting screw 8 intersects with the center line of the gap between the two supporting seats 3.

[0044] Reference Figure 1The top end of the adjusting screw 8 is located above the bogie 7 and is provided with a knob 81, which is fixedly connected to the adjusting screw 8. The knob 81 may be provided with protrusions or stripes to increase friction. The bottom end of the adjusting screw 8 extends vertically downward, passes through the bogie 7, and is threadedly connected to the bogie 7 (the thread is not drawn in the attached figure). The bottom end of the adjusting screw 8 is inserted into the top of the abutment frame 2 and is rotatably connected to the abutment frame 2 through a bearing. The center of the bottom end of the abutment frame 2 is vertically recessed upward to accommodate a cylindrical or disc-shaped workpiece (similar to a bearing), and the bottom end of the abutment frame 2 abuts against the top of the workpiece to assist in fixing the workpiece at the top.

[0045] The implementation principle of the adjustable center frame in Example 1 of the present application is as follows: when in use, the base 1 is first fixed to a processing device such as a lathe, and then the bogie 7 is rotated so that the abutment frame 2 on the bogie 7 is away from the top of the base 1. Secondly, the positions of the two support seats 3 are adjusted to adapt to the size specifications of the workpiece.

[0046] After the adjustment is completed, screw the bolt into the transverse positioning hole 32, and make the bolt abut against the side wall of the slide rail 4 to achieve the fixation between the support seat 3 and the slide rail 4. Then, the bolt is passed from the longitudinal positioning groove 51 to the connecting hole 11, so as to achieve the fixation between the support seat 3 and the base 1. Next, place the workpiece on the two support seats 3, and then rotate the bogie 7 to reset the bogie 7 and make the abutment frame 2 located directly above the workpiece. Then, rotate the knob 81 again, so that the adjustment screw 8 drives the abutment frame 2 to move downward and abut against the top surface of the workpiece to achieve the fixation of the workpiece.

[0047] Embodiment 2:

[0048] The difference between the second embodiment of the present application and the first embodiment is that: Figure 4 , an additional frame 9 is arranged on the inclined surface 31 of each support seat 3, and the additional frame 9 is fixedly connected to the corresponding support seat 3 by bolts, and the top wall of each additional frame 9 is arranged parallel to the inclined surface 31. A contact gasket 91 is arranged on the top wall of each additional frame 9, and the contact gasket 91 is integrally formed with the additional frame 9. The contact gasket 91 protrudes from the additional frame 9, and the top wall of the contact gasket 91 is arranged parallel to the top wall of the additional frame 9 to abut against the bottom of the workpiece to support the workpiece.

[0049] Reference Figure 4 In the embodiment of the present application, the material of the additional frame 9 and the contact gasket 91 are both set to be hard alloy, so that the surface of the contact gasket 91 has a wear-resistant effect, and at the same time the flatness of the contact gasket 91 is improved, thereby reducing the adverse effect on the quality of the workpiece.

[0050] Reference Figure 4In other embodiments, the contact gasket 91 may also be made of rubber or other soft rubber materials, and the contact gasket 91 is fixedly connected to the top wall of the additional frame 9 by gluing.

[0051] The implementation principle of an adjustable center frame in Example 2 of the present application is as follows: when fixing a smaller workpiece, relevant personnel can increase the support height by installing an additional frame 9 on the support seat 3, so that the bottom of the workpiece is against the contact gasket 91, thereby supporting the smaller workpiece, so that the machining center of the smaller workpiece can still be on the moving axis or the rotating axis of the tool in the machining equipment, thereby increasing the scope of application and practicality of the present application.

[0052] 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. An adjustable center frame, comprising a base (1), an abutment frame (2) and a plurality of support seats (3), characterized in that: The plurality of support seats (3) are respectively located at two ends of the base (1) along its own length direction, each support seat (3) is slidably connected to the base (1), and the sliding direction of each support seat (3) is the length direction of the base (1).

2. The adjustable center frame according to claim 1, characterized in that: The base (1) is also provided with an elevated frame (6), the top end of which is higher than the supporting seat (3), the elevated frame (6) is also provided with a bogie (7), the bogie (7) is rotatably connected to the elevated frame (6), and the abutment frame (2) is provided on the elevated frame (6).

3. The adjustable center frame according to claim 2, characterized in that: The steering is also provided with an adjusting screw (8), the bottom end of which passes through the bogie (7) and is threadedly connected to the bogie (7), and the bottom end of which is rotatably connected to the abutment frame (2).

4. The adjustable center frame according to claim 3, characterized in that: A knob (81) is also provided on the top end of the adjusting screw (8).

5. The adjustable center frame according to claim 1, characterized in that: The base (1) is also provided with a slide rail (4), the extension direction of the slide rail (4) is the length direction of the base (1), and each of the support seats (3) is slidably connected to the base (1) via the slide rail (4).

6. The adjustable center frame according to claim 5, characterized in that: A plurality of transverse positioning holes (32) are also provided on a side wall of the support seat (3) along the width direction of the base (1), and the transverse positioning holes (32) are connected to the side wall of the slide rail (4), and a thread is provided on the inner side wall of each transverse positioning hole (32).

7. The adjustable center frame according to claim 1, characterized in that: The support seat (3) is also provided with an extension portion (5) on one side along the width direction of the base (1), and a plurality of longitudinal positioning grooves (51) are formed through the top wall of the extension portion (5). The top wall of the base (1) is also provided with a plurality of connection holes (11), and the connection holes (11) correspond to the longitudinal positioning grooves (51).

8. The adjustable center frame according to claim 1, characterized in that: An additional frame (9) is also provided on the top of the support seat (3), and the additional frame (9) is arranged to be inclined downward. A contact gasket (91) is also provided on the additional frame (9), and the contact gasket (91) is used to abut against the bottom of the workpiece.

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