Horizontal machining center bed structure

Abstract

The application discloses a horizontal machining center bed structure, and aims to solve the problem of poor heat insulation effect of the chip removal channel on the machining center bed, and the problem that the residual heat of iron chips and residues is easily transferred to the bed to affect the precision of the bed. The bed is provided with a chip removal window, and a chip removal channel is installed on the bed, the chip removal channel extends to the front side position of the chip removal window, and the left and right sides of the chip removal channel are both provided with the guide chip inclined plates which are arranged in an inclined mode, the guide chip inclined plates are both provided with the chip blocking plates which are arranged in an inclined mode, the chip blocking plates are arranged at the rear side position of the chip removal window, and the heat insulation gaps are arranged between the chip removal channel, the guide chip inclined plates, the chip blocking plates and the bed. The horizontal machining center bed structure has the advantages that the heat insulation effect of the chip removal channel on the bed is good, and the residual heat of iron chips and residues is not easily transferred to the bed to affect the precision of the bed.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and more specifically, to a horizontal machining center bed structure. Background Technology

[0002] Precision horizontal machining centers are ideal high-precision machining equipment integrating multiple technologies such as mechanics, electrical engineering, hydraulics, pneumatics, microelectronics, and information technology, featuring complex structures and integrated functions. They can perform various complex workpieces with box-shaped hole systems and multiple working surfaces in a single setup, completing multiple machining processes such as milling, boring, drilling, reaming, tapping, and machining two-dimensional and three-dimensional curved surfaces. They are also particularly suitable for turning and boring box-shaped holes. During operation, many components of the machining center generate heat, which is conducted to the machine bed, affecting machining accuracy. Existing machining centers lack adequate heat insulation in their chip removal channels, resulting in high-temperature iron filings that easily transfer heat to the machine bed, impacting its accuracy and consequently affecting machining precision. Summary of the Invention

[0003] To overcome the above shortcomings, the present invention provides a horizontal machining center bed structure with good heat insulation effect in the chip removal channel of the bed, so that the residual heat of iron chips and slag is not easily transferred to the bed and affects the accuracy of the bed.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a horizontal machining center bed structure, wherein the bed is provided with a chip removal window, a chip removal channel is installed on the bed, the chip removal channel extends to the front side of the chip removal window, inclined chip guide plates are installed on both the left and right sides of the chip removal channel, and inclined chip baffles are installed between the chip guide plates. The chip baffles are positioned behind the chip removal window, and heat insulation gaps are provided between the chip removal channel, the chip guide plates, the chip baffles and the bed.

[0005] In a horizontal machining center, chips generated during workpiece machining fall into the chip removal channel, chip guide ramp, and chip baffle, eventually entering the chip removal window. The chip guide ramp and chip baffle are inclined to facilitate rapid chip descent. Furthermore, heat insulation gaps are provided between the chip removal channel, chip guide ramp, chip baffle, and the machine bed, providing excellent insulation and preventing residual heat from the chips from being transferred to the machine bed, thus reducing thermal deformation.

[0006] The horizontal machining center bed structure of this invention has a good heat insulation effect in the chip removal channel of the bed, and the residual heat of iron chips and residues is not easily transferred to the bed and thus affects the accuracy of the bed.

[0007] Preferably, a push screw is installed in the chip removal channel, and a push motor that drives the push screw to rotate is installed at the end of the bed.

[0008] The push motor drives the push screw to push the chips in the chip removal channel to the chip removal window, which is conducive to the rapid removal of chips and avoids the chips from staying for a long time and transferring heat to the machine bed.

[0009] Preferably, the chip removal channel has a C-shaped cross-section with the opening facing upwards, and the lower ends of the two chip guide plates are connected to the two side edges of the chip removal channel, respectively.

[0010] The C-shaped chip removal channel facilitates chip collection and dispensing.

[0011] Preferably, heat insulation strips are installed on the upper edge of the chip guide plate and the upper edge of the chip baffle plate, and the heat insulation strips are fixedly connected to the bed.

[0012] The heat insulation strip has a heat insulation effect, making it difficult for heat from the chip guide plate and chip baffle plate to be transferred to the bed.

[0013] Preferably, the machine bed is provided with a recessed groove, the chip removal channel is installed in the recessed groove, and the chip removal window is located at the bottom of the recessed groove.

[0014] The chip removal channel is installed in the sinkhole to facilitate chip collection and prevent interference during workpiece processing.

[0015] Preferably, the upper edges of the upper and lower grooves on both sides of the bed are equipped with slide rails, and a workpiece clamping table that is slidably installed between the two slide rails is installed.

[0016] The workpiece clamping table slides smoothly and reliably on two slide rails.

[0017] Preferably, the back of the bed is provided with three support surfaces, each with a connecting hole. One hole is located in the middle of the front side of the bed, and the other two holes are located at the left and right ends of the back side of the bed.

[0018] The machine bed uses three-point support, so its accuracy does not depend on the foundation and is completely unaffected by changes in ground shape and time, enabling high precision. It also improves installation stability and allows for easy leveling of the machine tool, significantly reducing installation time.

[0019] As a preferred option, several weight-reduction holes are provided on the surface of the bed.

[0020] Weight-reducing holes can reduce the weight of the bed frame, lower costs, and increase the exposed area, which is beneficial for heat dissipation and reduces thermal deformation of the bed frame.

[0021] Preferably, a motor mounting base is provided at the front of the bed, and the motor mounting base has a through hole through which the push screw passes. The push motor is installed at the front end of the motor mounting base, and the output shaft of the push motor is connected to the push screw.

[0022] The motor mounting bracket is located at the front of the bed, which improves the heat dissipation of the push motor.

[0023] Preferably, an anti-blocking mechanism is installed in the chip removal window. The anti-blocking mechanism includes a fixed gear ring, a planetary carrier, a sun gear, and several planetary gears. The planetary gears are fitted between the sun gear and the fixed gear ring. The planetary gears are rotatably mounted on the planetary carrier. A push screw extends towards the chip removal window to form a transmission rod. The sun gear is mounted on the transmission rod. An axially movable reel is installed on the planetary gears. A return spring is installed between the reel and the planetary gears. A cutter is installed on the outer wall of the front end of the reel. A piston cylinder is installed on the fixed gear ring. The end of the piston cylinder's telescopic rod is connected to an arc-shaped push plate. A top plate is provided at the rear of the reel, located near the rear of the arc-shaped push plate.

[0024] Horizontal machining centers often produce relatively long chips during workpiece machining. These longer chips tend to accumulate in the chip removal window and are difficult to fall, causing blockage. In this design, the sun gear rotates along with the push screw, while the reel rotates with the planetary gears, both on its own axis and around the central axis. The chips are wound onto the reel. When the reel reaches its lowest position, the arc-shaped push plate faces the top plate, and the piston cylinder operates. The arc-shaped push plate abuts against the top plate and pushes it backward, pushing the reel backward and compressing the chips wound on it. The cutter at the end of the reel then shears the compressed chips against the planetary carrier, causing them to fall automatically. The piston cylinder's extension rod returns to its original position, and the reel returns to its original position under the action of the return spring. This structural design prevents chips from clogging the chip removal window, allowing for rapid chip discharge and avoiding prolonged chip retention that could transfer heat to the machine bed.

[0025] Compared with the prior art, the beneficial effects of the present invention are: (1) The chip removal channel of the horizontal machining center bed structure of the present invention has good heat insulation effect, and the residual heat of the iron chip residue is not easily transferred to the bed and affects the accuracy of the bed; (2) The chips can be discharged quickly and will not be blocked, shortening the residence time of the chips and making it difficult for the heat of the chips to be transferred to the bed; (3) The bed adopts three-point support, and the accuracy does not depend on the foundation, and is completely unaffected by the shape of the ground and changes over time, so it can be made with high precision; moreover, it improves the stability of installation; the horizontal adjustment of the machine tool can be easily carried out, greatly shortening the installation time. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the bed of the present invention mounted on a machining center;

[0027] Figure 2 This is a schematic diagram of the rear structure of the bed frame of the present invention;

[0028] Figure 3 This is a schematic diagram of the front structure of the bed of the present invention;

[0029] Figure 4 This is a top view of the bed in Embodiment 1 of the present invention;

[0030] Figure 5 This is a schematic diagram of the connection structure of the chip removal channel of the present invention;

[0031] Figure 6 This is a top view of the bed in Embodiment 2 of the present invention;

[0032] Figure 7 This is a schematic diagram of the anti-blocking mechanism according to Embodiment 2 of the present invention;

[0033] In the diagram: 1. Bed, 2. Chip removal window, 3. Chip removal channel, 4. Chip guide ramp, 5. Chip baffle, 6. Flanged edge, 7. Support, 8. Support rod, 9. Through hole, 10. Push screw, 11. Push motor, 12. Motor mounting base, 13. Through hole, 14. Sunken groove, 15. Slide rail, 16. Workpiece clamping table, 17. Heat insulation strip, 18. Extension edge, 19. Support surface, 20. Connecting hole, 21. Weight reduction hole, 22. Weight reduction groove, 23. 24. Anti-blocking mechanism; 25. Fixed gear ring; 26. Planetary carrier; 27. Sun gear; 28. Planetary gear; 29. ​​Transmission rod; 30. Positioning seat; 31. Clearance groove; 32. Mounting hole; 33. Rotary column; 34. Limit sleeve; 35. Limit ring; 36. Reel; 37. Return spring; 38. Cutter; 39. Protrusion; 40. Positioning block; 41. Protruding ring; 42. Piston cylinder; 43. Arc-shaped push plate; 44. Top plate; 45. Positioning switch. Detailed Implementation

[0034] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0035] Example 1: A horizontal machining center bed structure (see attached) Figure 1 To be continued Figure 5 The machine bed 1 has a chip removal window 2, and a chip removal channel 3 is installed on the machine bed, extending to the front of the chip removal window. Inclined chip guide plates 4 are installed on both sides of the chip removal channel, and inclined chip baffles 5 are installed between the chip guide plates, positioned behind the chip removal window. Insulation gaps are provided between the chip removal channel, the chip guide plates, the chip baffles, and the machine bed. The chip removal channel has an upward-opening C-shaped cross-section, with the lower ends of the two chip guide plates connected to the two side edges of the chip removal channel. Outward-facing flanges 6 are provided on both sides of the chip removal channel, with the lower ends of the chip guide plates fitting against and fixed to the flanges. Supports 7 are connected to the front and rear of the chip removal channel, with two support rods 8 connected to the supports. A through hole 9 is provided at the front of the machine bed, through which the two support rods on the front support pass and are supported on the ground. The two support rods on the rear support pass through the chip removal window and are supported on the ground. The support rods support the chip removal channel, separating the chip removal channel from the bed and improving the heat insulation effect.

[0036] A push screw 10 is installed in the chip removal channel, and a push motor 11 that drives the push screw to rotate is installed at the end of the bed. A motor mounting base 12 is provided at the front of the bed, and the motor mounting base has a through hole 13. The push screw passes through the through hole, and the push motor is installed at the front end of the motor mounting base. The output shaft of the push motor is connected to the push screw.

[0037] The machine bed has a recessed groove 14, within which a chip removal channel is installed, and a chip removal window is located at the bottom of the recessed groove. Slide rails 15 are provided on the upper edges of both sides of the recessed groove on the machine bed, and a workpiece clamping table 16 is installed between the two slide rails. Heat insulation strips 17 are installed on the upper edge of the chip guide ramp and the upper edge of the chip baffle, and these heat insulation strips are fixedly connected to the machine bed. The heat insulation strips are positioned close to the slide rails. Extended edges 18 are provided on the heat insulation strips. The ends of the upper and lower edges of the chip guide ramp and the chip baffle respectively contact the heat insulation strips, and the lower surfaces of the upper ends of the chip guide ramp and the chip baffle respectively contact and are fixed to the extended edges of the heat insulation strips. The ends of the heat insulation strips contact and are fixed to the side walls of the recessed groove.

[0038] The back of the bed has three support surfaces 19, each with a connecting hole 20. One hole is located in the middle of the front side of the bed, and the other two are located at the left and right ends of the rear side of the bed. Several weight-reducing holes 21 are provided on the surface of the bed. Weight-reducing grooves 22 are provided at the edge of the chip removal window on the back of the bed.

[0039] In a horizontal machining center, chips generated during workpiece machining fall into the chip removal channel, chip guide ramp, and chip baffle, eventually entering the chip removal window. The chip guide ramp and chip baffle are inclined to facilitate rapid chip descent. Furthermore, heat insulation gaps are provided between the chip removal channel, chip guide ramp, chip baffle, and the machine bed, providing excellent insulation and preventing residual heat from the chips from being transferred to the machine bed, thus reducing thermal deformation.

[0040] Example 2: A horizontal machining center bed structure (see appendix) Figure 6 Appendix Figure 7Its structure is similar to that of Embodiment 1, with the main difference being that an anti-blocking mechanism 23 is installed in the chip removal window in this embodiment. The anti-blocking mechanism includes a fixed gear ring 24, a planetary carrier 25, a sun gear 26, and several planetary gears 27. The planetary gears are adapted and installed between the sun gear and the fixed gear ring. In this embodiment, four planetary gears are evenly distributed. The fixed gear ring is fixedly installed on a bracket, which is installed on the ground. The inner wall of the fixed gear ring is provided with meshing teeth, and the planetary gear meshes and drives between the sun gear and the meshing teeth. The planetary gears are rotatably installed on the planetary carrier, and the push screw extends towards the chip removal window to form a transmission rod 28. The sun gear is installed on the transmission rod. The planetary carrier is rotatably installed on the fixed gear ring. A positioning seat 29 is fixedly installed on the front side of the planetary carrier, and an annular clearance groove 30 is provided on the rear side of the positioning seat. The planetary carrier is provided with mounting holes 31 corresponding to the planetary gears. A rotating column 32 is provided at the end of the planetary gear. The rotating column is rotatably installed in the mounting hole, and a limiting sleeve 33 is connected to the end of the rotating column. The limiting sleeve is limited on the front side of the planetary carrier and is placed in the clearance groove. A limiting ring 34 is connected to the front side of the fixed gear ring, and the planetary carrier is axially limited between the limiting ring and the fixed gear ring.

[0041] A axially movable spool 35 is mounted on the planetary gear. A return spring 36 is installed between the spool and the planetary gear, and the return spring is in a tensioned state. A cutter 37 is mounted on the outer wall of the front end of the spool, and the cutter is radially arranged. The front part of the spool extends into the chip removal window, and the rear part of the fixed gear ring is blocked by a chip baffle. The planetary gear has a regular hexagonal sleeve hole, and the outer wall of the spool is a regular hexagon that fits the sleeve hole. A protrusion 38 and a positioning block 39 are provided on the spool. The protrusion abuts against the rear side of the planetary gear. The return spring connects the positioning block and the rear side of the planetary gear. A protruding ring 40 is provided on the inner wall of the rear side of the fixed gear ring, and the protruding ring limits the rear side of the planetary gear. A piston cylinder 41 is mounted on the fixed gear ring. The piston cylinder is a pneumatic cylinder, and the end of the piston cylinder telescopic rod is connected to an arc-shaped push plate 42. A top plate 43 is provided at the rear of the spool, and the top plate is located near the rear of the arc-shaped push plate. A piston cylinder is installed below the fixed gear ring, and a position switch 44 is installed at the lower part of the convex ring. The position switch is a trigger switch with an elastic trigger head. The end of the elastic trigger head is hemispherical and protrudes from the front side of the convex ring. When the planetary gear rotates to the trigger switch position, the planetary gear can push the end of the elastic trigger head to move, thereby activating the position switch. The piston cylinder is activated, causing the arc-shaped push plate to push the top plate to move, which in turn pushes the reel backward, compressing the chips wound on the reel. The cutter at the end of the reel hits the planetary carrier to shear the compressed chips, which then fall automatically after shearing. Other structures are the same as in Embodiment 1.

[0042] Horizontal machining centers often produce relatively long chips during workpiece machining. These longer chips tend to accumulate in the chip removal window and are difficult to fall, causing blockage. In this design, the sun gear rotates along with the push screw, while the reel rotates with the planetary gears, both on its own axis and around the central axis. The chips are wound onto the reel. When the reel reaches its lowest position, the arc-shaped push plate faces the top plate, and the piston cylinder operates. The arc-shaped push plate abuts against the top plate and pushes it backward, pushing the reel backward and compressing the chips wound on it. The cutter at the end of the reel then shears the compressed chips against the planetary carrier, causing them to fall automatically. The piston cylinder's extension rod returns to its original position, and the reel returns to its original position under the action of the return spring. This structural design prevents chips from clogging the chip removal window, allowing for rapid chip discharge and avoiding prolonged chip retention that could transfer heat to the machine bed.

[0043] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. A horizontal machining center bed structure, characterized in that, The machine bed is equipped with a chip removal window and a chip removal channel. The chip removal channel extends to the front of the chip removal window. Inclined chip guide plates are installed on both sides of the chip removal channel, and an inclined chip baffle is installed between the chip guide plates. The chip baffle is positioned behind the chip removal window. Heat insulation gaps are provided between the chip removal channel, the chip guide plates, the chip baffle, and the machine bed. A push screw is installed inside the chip removal channel, and a push motor that drives the push screw is installed at the end of the machine bed. An anti-blocking mechanism is installed in the chip removal window. The anti-blocking mechanism includes a fixed gear ring, a planetary carrier, a sun gear, and several planetary gears. The planetary gear is fitted between the sun gear and the fixed gear ring. The planetary gear is rotatably mounted on the planet carrier. The push screw extends towards the chip removal window to form a transmission rod, and the sun gear is mounted on the transmission rod. An axially movable reel is mounted on the planetary gear. A return spring is installed between the reel and the planetary gear. A cutter is installed on the outer wall of the front end of the reel. A piston cylinder is mounted on the fixed gear ring. The end of the piston cylinder's telescopic rod is connected to an arc-shaped push plate. A top plate is set at the rear of the reel, and the top plate is located near the rear of the arc-shaped push plate. The piston cylinder is installed at the lower part of the fixed gear ring, and a position switch is installed at the lower part of the convex ring.

2. The horizontal machining center bed structure according to claim 1, characterized in that, The chip removal channel has a C-shaped cross-section with the opening facing upwards, and the lower ends of the two chip guide plates are connected to the two side edges of the chip removal channel, respectively.

3. The horizontal machining center bed structure according to claim 1, characterized in that, Heat insulation strips are installed on the upper edge of the chip guide plate and the upper edge of the chip baffle plate, and the heat insulation strips are fixedly connected to the bed.

4. The horizontal machining center bed structure according to claim 1, characterized in that, The machine bed is equipped with a recessed groove, the chip removal channel is installed in the recessed groove, and the chip removal window is located at the bottom of the recessed groove.

5. The horizontal machining center bed structure according to claim 4, characterized in that, The upper edges of the upper and lower grooves on both sides of the bed are equipped with slide rails, and a workpiece clamping table with sliding arrangement is installed between the two slide rails.

6. The horizontal machining center bed structure according to claim 1, characterized in that, The back of the bed has three support surfaces with connecting holes. One of these holes is located in the middle of the front side of the bed, and the other two are located at the left and right ends of the back side of the bed.

7. A horizontal machining center bed structure according to any one of claims 1 to 6, characterized in that, Several weight-reducing holes are set on the surface of the bed.

8. The horizontal machining center bed structure according to claim 1, characterized in that, A motor mounting base is provided at the front of the bed. The motor mounting base has a through hole through which the push screw passes. The push motor is installed at the front end of the motor mounting base, and the output shaft of the push motor is connected to the push screw.

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