Machine tool for punching guide rail mounting holes of needle bed base

Abstract

The utility model discloses a machine tool for punching a needle bed base guide rail mounting hole, which comprises a machine tool body, a pneumatic fixing tool, a needle bed base drilling mechanism and a drilling synchronous driving mechanism, the pneumatic fixing tool is installed on the machine tool body and can fix a needle bed base along the center line of the bed surface of the machine tool body, sliding rail sets are symmetrically arranged on the two sides of the machine tool body, the two needle bed base drilling mechanisms are symmetrically installed on the two sides of the machine tool body through the sliding rail sets, and the needle bed base drilling mechanisms are arranged on the two sides of the machine tool body. The drilling synchronous driving mechanism can simultaneously drive the two needle bed base drilling mechanisms to synchronously and horizontally move to a designated position along the sliding rail to complete drilling action. By means of the mode, the machining efficiency can be improved, the labor intensity during machining is reduced, and the use frequency of the transverse lathe in the machining process is reduced.

Description

Technical Field

[0001] The utility model relates to the field of processing of needle bed bases, in particular to a machine tool for opening guide rail mounting holes of a needle bed base. Background Art

[0002] During the processing of flat knitting machines, due to the structure of the needle bed base itself, the guide rail mounting holes need to be rotated to a specific angle for processing. Existing processing methods mostly use a horizontal lathe to hoist the needle bed base onto an angular tooling seat, install a guide rail drill jig, and then use a radial drill press to process the hole positions. Since each piece has two guide rail mounting surfaces, it needs to be hoisted twice to complete the processing. This processing method requires the installation of a drill jig, resulting in low efficiency; hoisting twice occupies the resources of the horizontal lathe; if the product specifications are changed, the position of the drill jig needs to be reset again. Summary of the Utility Model

[0003] The main technical problem to be solved by the utility model is to provide a machine tool for opening guide rail mounting holes of a needle bed base, which can improve processing efficiency and reduce labor intensity.

[0004] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a machine tool for opening guide rail mounting holes of a needle bed base, the machine tool for opening guide rail mounting holes of a needle bed base includes: a machine tool body, a pneumatic fixing tooling, a needle bed base drilling mechanism, and a drilling synchronous driving mechanism. The pneumatic fixing tooling is installed on the machine tool body and can fix the needle bed base along the midline of the bed surface of the machine tool body. Slide rail groups are symmetrically arranged on both sides of the machine tool body. There are two needle bed base drilling mechanisms, which are symmetrically installed on both sides of the machine tool body relying on the slide rail groups. The drilling synchronous driving mechanism can simultaneously drive the two needle bed base drilling mechanisms to horizontally move along the slide rail to a specified position to complete the drilling action.

[0005] In a preferred embodiment of the utility model, the pneumatic fixing tooling includes two base brackets, the two base brackets are arranged at both ends of the midline of the bed surface, the top surface contour of the base bracket is a V shape matching the bottom shape of the needle bed base, a fastening cylinder is installed at the middle position of the base bracket, and the top end of the telescopic rod of the fastening cylinder is installed with a rotating pressure head that can pass through the reserved hollow hole at the corresponding position on the needle bed base. Bracket mounting plates are installed between the base bracket and the bed surface of the machine tool body. There are two bracket mounting plates, which are respectively fixed at both ends of the bed surface. The surface of the bracket mounting plate is provided with a bracket positioning groove, and the bottom surface of the base bracket is provided with a slider matching the positioning groove. The bottom of the base bracket is also provided with corresponding fastening screw holes. There are multiple bracket positioning grooves and they are symmetrically arranged about the midline of the bed surface.

[0006] In a preferred embodiment of the present utility model, the drilling mechanism of the needle bed base includes a drilling machine, a machine position bracket, and a sliding seat. The synchronous drive mechanism includes a drive motor, two transmission lead screws, and a synchronous belt. The drilling machine is fixed on the machine position bracket at a certain inclination angle according to the requirements of the processing technology. The machine position bracket is fixed on the sliding seat. The sliding seat is provided with a chute matching the slide rail group and a lead screw nut matching the diameter of the transmission lead screw. The two transmission lead screws are symmetrically installed on both sides of the machine tool body and are parallel to the slide rail. The lead screw nuts on the sliding seats of the two needle bed base drilling mechanisms are respectively sleeved on the two transmission lead screws. One of the two transmission lead screws is an active lead screw, and the other is a passive lead screw. The drive motor is connected to one end of the active lead screw. A first synchronous pulley is provided at the other end of the active lead screw, and a second synchronous pulley is provided at the same-side end of the passive lead screw. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt. A dust-proof cover is sleeved outside the synchronous belt. There are two groups of slide rail groups, namely a surface rail group and a side rail group. The surface rail group consists of two surface rails symmetrically arranged on the two side surfaces of the bed surface. The side rail group consists of two side rails symmetrically arranged on the two side surfaces of the bed surface. The sliding seat is provided with corresponding upper chutes and side chutes. The transmission lead screws are arranged between the surface rails and the side rails.

[0007] The beneficial effects of the present utility model are as follows: When the present utility model is actually used, a pneumatic fixing tooling can be used to fix the needle bed base, and the numerical control system is used to control the dimensions. The two main shafts drill holes simultaneously, and the machining of the guide rail installation holes can be completed with one clamping. In this way, it is not necessary to install the drill die multiple times, reducing the number of hoistings and the occupation of horizontal lathe resources, effectively improving the overall machining efficiency, reducing the labor intensity, and only needing to adjust the drilling bracket on the drilling mechanism of the needle bed base when changing the product specifications, which is convenient and reliable. Description of the Drawings

[0008] Figure 1 is a schematic diagram of the working principle of a preferred embodiment of the present utility model;

[0009] Figure 2 is a three-dimensional structural schematic diagram of the shown embodiment;

[0010] Figure 3 is a partially enlarged structural schematic diagram of the shown embodiment;

[0011] The marks of each component in the drawings are as follows:

[0012] 1. Bed base, 2. Base bracket, 3. Tightening cylinder, 4. Bracket mounting plate, 5. Punching machine, 6. Machine position bracket, 7. Sliding seat, 8. Transmission lead screw, 9. Surface rail, 10. Side rail, 11. Driving motor, 12. Timing belt, 13. First synchronous pulley, 14. Second synchronous pulley, 15. Dust-proof housing; 701. Upper chute, 702. Side chute, 703. Lead screw nut. Detailed implementation manner

[0013] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0014] Please refer to Figures 1 to 3 , the embodiments of the present utility model include:

[0015] A machine tool for opening holes in the mounting holes of the bed base guide rail of a knitting machine, the machine tool for opening holes in the mounting holes of the bed base guide rail of the knitting machine includes: a machine tool body, a pneumatic fixing tooling, a bed base drilling mechanism and a drilling synchronous driving mechanism. The pneumatic fixing tooling is installed on the machine tool body and can fix the bed base 1 along the midline of the bed surface of the machine tool body. Slide rail groups are symmetrically arranged on both sides of the machine tool body. There are two bed base drilling mechanisms, which are symmetrically installed on both sides of the machine tool body relying on the slide rail groups. The drilling synchronous driving mechanism can simultaneously drive the two bed base drilling mechanisms to horizontally move along the slide rail to a specified position to complete the drilling action.

[0016] The pneumatic fixing tooling includes two base brackets 2, and the two base brackets 2 are arranged at both ends of the midline of the bed surface. The top surface contour of the base bracket 2 is a V shape matching the bottom surface shape of the bed base 1. A tightening cylinder 3 is installed at the middle position of the base bracket 2, and the top end of the telescopic rod of the tightening cylinder 3 is installed with a rotary pressing head that can pass through the corresponding reserved hollow holes on the bed base 1. In this way, after the bed base is hoisted to the fixed position by the knitting machine, the rotary pressing head on the tightening cylinder only needs to rotate 90° under the control of the cylinder after passing through the hollow hole, and then the telescopic rod contracts, so as to realize the positioning and fixing of the bed base, with fast speed and high efficiency.

[0017] A bracket mounting plate 4 is installed between the base bracket 2 and the bed surface of the machine tool body. There are two bracket mounting plates 4, which are respectively fixed at both ends of the bed surface. The surface of the bracket mounting plate 4 is provided with a bracket positioning groove. The bottom surface of the base bracket is provided with a slider that matches the positioning groove. The bottom of the base bracket 2 is also provided with corresponding fastening screw holes. There are 3 bracket positioning grooves in total, one of which coincides with the center line of the bed surface, and the other two are symmetric about the center line of the bed surface. In this way, when replacing the needle bed base 1 of different specifications, it is only necessary to linearly move and adjust the position of the base bracket 2 along the direction of the bracket positioning groove according to the specification of the needle bed base 1. After the adjustment is in place, drive fastening screws into the fastening screw holes to fix the positioning. Such adjustment is convenient, fast and efficient.

[0018] The needle bed base drilling mechanism includes a drilling machine 5, a machine position bracket 6 and a sliding seat 7. The synchronous drive mechanism includes a drive motor 11, two transmission lead screws 8 and a synchronous belt 12. The drilling machine 5 is fixed on the machine position bracket 6 at a certain inclination angle according to the requirements of the processing technology. The machine position bracket 6 is fixed on the sliding seat 7. The sliding seat 7 is provided with a chute that matches the slide rail group and a lead screw nut 703 that matches the diameter of the transmission lead screw 8. The two transmission lead screws 8 are symmetrically installed on both sides of the machine tool body and are parallel to the slide rail. The lead screw nuts 703 on the sliding seats 7 of the two needle bed base drilling mechanisms are respectively sleeved on the two transmission lead screws 8. One of the two transmission lead screws 8 is a driving lead screw, and the other is a driven lead screw. The drive motor 11 is connected to one end of the driving lead screw. A first synchronous pulley 13 is provided at the other end of the driving lead screw, and a second synchronous pulley 14 is provided at the same side end of the driven lead screw. The first synchronous pulley 13 and the second synchronous pulley 14 are connected by a synchronous belt 12. A dust cover 15 is sleeved outside the synchronous belt 12. In this way, during operation, the drive motor 11 can be controlled by the numerical control system to drive the driving lead screw and the driven lead screw to rotate synchronously, driving the two sliding seats 7 to move simultaneously, and accurately controlling the drilling position. Moreover, the dust cover sleeved outside the synchronous belt can prevent ash from entering the surface of the synchronous pulley and affecting the synchronous rotation of the transmission lead screw 8.

[0019] There are two sets of the slide rail groups, namely the surface rail group and the side rail group. The surface rail group consists of two surface rails 9 symmetrically arranged on the two side surfaces of the bed surface. The side rail group consists of two side rails 10 symmetrically arranged on the two side faces of the bed surface. Corresponding upper slide grooves 701 and side slide grooves 702 are provided on the sliding seat 7. The transmission lead screw 8 is arranged between the surface rail 9 and the side rail 10. When installed in this way, the upper slide groove 701 clamps the surface rail 9, and the side slide groove 702 clamps the side rail 10, effectively ensuring the installation stability of the drilling mechanism of the needle bed base. Moreover, the lead screw nut 703 is arranged in the middle of them. When the transmission lead screw 8 in the middle rotates, the forces on both sides are balanced, and the sliding seat 7 moves smoothly without jamming during movement.

[0020] During actual operation of this embodiment, first, the flat knitting machine hoists the needle bed base 1 above the center of the bed surface, aligns and places the needle bed base 1 on the two base brackets 2, and then starts the fastening air cylinder 3. After the rotating head rotates 90° and the telescopic rod contracts, the needle bed base 1 is fixed on the bed surface. Then, the numerical control system first controls the driving motor 11 to rotate, simultaneously translates the two sliding seats 7 to the processing position, then drives the two drilling machines 5 to perform drilling operations simultaneously. After drilling is completed, the two sliding seats 7 are simultaneously moved to the next processing position. After all the hole positions are processed, the telescopic rod of the fastening air cylinder 3 resets, and then the rotating head resets. The flat knitting machine removes the needle bed base from the bed surface to the next processing station. The entire process only requires one clamping to simultaneously complete the processing of the installation holes on both sides of the guide rail, reducing the number of hoists and lowering the overall labor intensity. Moreover, the entire device can be adjusted according to the specifications of the needle bed base 1, which is convenient and fast. The above is only an embodiment of the present invention, and it does not limit the patent scope of the present invention accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A machine tool for drilling guide rail mounting holes for a needle bed base, characterized in that: The machine tool for drilling holes in the guide rail mounting holes of the needle bed base includes: a machine tool body, a pneumatic fixing tool, a needle bed base drilling mechanism and a drilling synchronization drive mechanism. The pneumatic fixing tool is installed on the machine tool body and can fix the needle bed base along the center line of the bed surface of the machine tool body. Slide rail groups are symmetrically arranged on both sides of the machine tool body. There are two needle bed base drilling mechanisms, which are symmetrically installed on both sides of the machine tool body relying on the slide rail groups. The drilling synchronization drive mechanism can simultaneously drive the two needle bed base drilling mechanisms to move synchronously horizontally along the slide rails to the specified position to complete the drilling action.

2. The machine tool for drilling the guide rail mounting holes of the needle bed base according to claim 1, characterized in that: The pneumatic fixing tooling includes two base brackets, which are arranged at both ends of the center line of the bed surface. The top surface contour of the base bracket is a V-shape that matches the bottom surface shape of the needle bed base. A fastening cylinder is installed in the middle position of the base bracket, and a rotating pressure head that can pass through the hollow hole reserved at the corresponding position on the needle bed base is installed at the top of the telescopic rod of the fastening cylinder.

3. The machine tool for drilling the guide rail mounting holes of the needle bed base according to claim 2, characterized in that: A bracket mounting plate is installed between the base bracket and the bed surface of the machine tool body. There are two bracket mounting plates, which are respectively fixed at two ends of the bed surface. The surface of the bracket mounting plate is provided with a bracket positioning groove, and a sliding block matching the positioning groove is provided on the bottom surface of the base bracket. The bottom of the base bracket is also provided with corresponding fastening screw holes.

4. The machine tool for drilling the guide rail mounting holes of the needle bed base according to claim 3, characterized in that: There are a plurality of bracket positioning grooves which are symmetrically arranged about the center line of the bed surface.

5. The machine tool for drilling the guide rail mounting holes of the needle bed base according to claim 1, characterized in that: The needle bed base drilling mechanism includes a punch, a machine support and a sliding seat, and the synchronous drive mechanism includes a drive motor, two transmission screws and a synchronous belt; The punching machine is fixed on the machine support at a certain inclination angle according to the requirements of the processing technology, and the machine support is fixed on the sliding seat. The sliding seat is provided with a slide groove matching the slide rail group and a screw nut matching the diameter of the transmission screw. The two transmission screws are symmetrically installed on both sides of the machine tool body and parallel to the slide rails. The screw nuts on the sliding seats of the two needle bed base drilling mechanisms are respectively sleeved on the two transmission screws, one of the two transmission screws is an active screw and the other is a passive screw. The driving motor is connected to one end of the active screw, and the other end of the active screw is provided with a first synchronous wheel, and the same side end of the passive screw is provided with a second synchronous wheel, and the first synchronous wheel and the second synchronous wheel are connected by a synchronous belt.

6. The machine tool for drilling the guide rail mounting holes of the needle bed base according to claim 5, characterized in that: A dust cover is mounted on the outer side of the synchronous belt.

7. The machine tool for drilling the guide rail mounting holes of the needle bed base according to claim 5, characterized in that: There are two groups of slide rails, namely a surface rail group and a side rail group. The surface rail group consists of two surface rails symmetrically arranged on the two side surfaces of the bed surface, and the side rail group consists of two side rails symmetrically arranged on the two side surfaces of the bed surface. Corresponding upper slide grooves and side slide grooves are arranged on the sliding seat.

8. The machine tool for drilling the guide rail mounting holes of the needle bed base according to claim 7, characterized in that: The transmission screw is arranged between the surface rail and the side rail.

Images