Workpiece slip support device

Abstract

The application belongs to the technical field of numerical control machining center, and discloses a workpiece sliding support device applied to a numerical control double-sided boring and milling machining center. The numerical control double-sided boring and milling machining center comprises a fixed workbench and first and second main shafts oppositely arranged on the two sides of the fixed workbench. The workpiece sliding support device comprises a base fixedly arranged on the fixed workbench, a sliding base slidingly arranged on the base and used for clamping a workpiece to be machined, and a locking mechanism arranged on the base and used for selectively locking the sliding base on the base and / or the fixed workbench to limit the relative movement of the sliding base and the base. The sliding direction of the sliding base relative to the base is parallel to the connecting direction of the first and second main shafts. The application aims to solve the technical problem that the existing technology needs secondary clamping and alignment, increases the workload of clamping and alignment, reduces the production efficiency, and the secondary clamping is prone to positioning error, which affects the machining precision.

Description

Technical Field

[0001] This invention belongs to the technical field of CNC machining centers, and particularly relates to a workpiece sliding support device. Background Technology

[0002] A CNC double-sided boring and milling machining center can machine both sides of a large workpiece simultaneously. However, the distance between the two spindles of a CNC double-sided boring and milling machining center is fixed. When the workpiece width is less than the distance between the two spindles, after the workpiece is clamped to the worktable, only one end can be machined. The other end cannot be machined, requiring secondary clamping and alignment. This increases the workload of clamping and alignment, reduces production efficiency, and secondary clamping is prone to positioning errors, affecting machining accuracy. Summary of the Invention

[0003] The purpose of this invention is to provide a workpiece sliding support device to solve the technical problems in the prior art that require secondary clamping and alignment, which increases the workload of clamping and alignment, reduces production efficiency, and easily causes positioning errors during secondary clamping, affecting machining accuracy.

[0004] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0005] In a first aspect, the present invention provides a workpiece sliding support device applied to a CNC double-sided boring and milling machining center. The CNC double-sided boring and milling machining center includes a fixed worktable and a first spindle and a second spindle disposed opposite to each other on both sides of the fixed worktable. The workpiece sliding support device includes: a base, which is fixedly disposed on the fixed worktable; a slide, which is slidably disposed on the base for clamping the workpiece to be processed; and a locking mechanism, which is disposed on the base for selectively locking the slide to the base and / or the fixed worktable to limit the relative movement of the slide and the base; wherein the sliding direction of the slide relative to the base is parallel to the line connecting the first spindle and the second spindle.

[0006] Furthermore, the base is provided with at least two guide rails, and a slider is slidably mounted on the guide rails, with the slide block and the slider being fixedly connected; wherein, the extension direction of the guide rails is parallel to the line connecting the first spindle and the second spindle.

[0007] Furthermore, the locking mechanism includes: at least one threaded hole, the threaded hole being formed in the slide; a locking bolt, the locking bolt being threaded into the threaded hole, and the end of the locking bolt passing through the threaded hole and abutting against the base to lock the slide to the base.

[0008] Furthermore, the locking mechanism also includes: a fixed worktable with multiple T-slots arranged in sequence; a slide with a first protrusion and a first through hole, the fastener passing through the first through hole and connecting to one of the T-slots to lock the slide to the fixed worktable; wherein the sliding direction of the slide relative to the base is perpendicular to the extension direction of the T-slot.

[0009] Furthermore, the upper surface of the slide has multiple mounting holes arranged along the sliding direction of the slide; the pressure plate is fixedly connected to one of the mounting holes by fasteners, and the pressure plate is used to press and fix the workpiece to be processed onto the slide.

[0010] Furthermore, the fixed worktable has multiple T-slots arranged in sequence; the base has a second protrusion with a second through hole, and the fastener passes through the second through hole and connects to one of the T-slots to lock the base to the fixed worktable.

[0011] Furthermore, it also includes: a fixed base, which is located on a fixed workbench and serves as a force support point for the traction device.

[0012] Furthermore, a pull lug is rotatably provided on the top of the fixed base. The pull lug is used to connect the traction device and serve as a force support point when the traction device drives the slide to slide.

[0013] Furthermore, a T-slot is provided on the fixed worktable; a retaining plate is provided at the bottom of the fixed seat, and the retaining plate engages with the T-slot to fix the fixed seat to the fixed worktable.

[0014] Beneficial effects

[0015] This invention utilizes a sliding slide block on a fixed worktable, with the slide direction parallel to the line connecting the first and second spindles. This allows the workpiece to move relative to the spindles in a single clamping operation. Specifically, when one end of the workpiece is being machined deeply or the tool travel is insufficient, the workpiece's position relative to the spindle is adjusted by sliding the slide block, enabling the tool to perform machining without secondary clamping, thus improving machining efficiency. A locking mechanism secures the slide block, ensuring workpiece stability during machining. This workpiece sliding support device avoids alignment errors caused by secondary clamping, eliminating the need for secondary clamping and alignment, improving production efficiency, and ensuring workpiece machining accuracy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional view of a workpiece sliding support device provided by the present invention;

[0018] Figure 2 This is a schematic diagram of the slide block provided by the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the base and the fixed workbench provided by the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of a workpiece sliding support device provided by the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the fixing base provided by the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the workpiece to be processed provided by the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Workpiece sliding support device; 11. Base; 111. Guide rail; 112. Slider; 113. Second protrusion; 114. Second through hole; 12. Slide block; 121. Threaded hole; 122. First protrusion; 123. First through hole; 124. Mounting hole; 125. First fixing hole group; 2. Fixing seat; 21. Pull lug; 22. Clamping plate; 3. Fixed worktable; 31. T-slot; 4. Workpiece to be processed. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0026] Example 1:

[0027] This embodiment provides a workpiece sliding support device 1, applied to a CNC double-sided boring and milling machining center. The CNC double-sided boring and milling machining center includes a fixed worktable 3 and a first spindle and a second spindle disposed opposite to each other on both sides of the fixed worktable 3. Figure 1As shown, the workpiece sliding support device 1 includes a base 11, a slide 12, and a locking mechanism; the base 11 is fixedly mounted on the fixed worktable 3; the slide 12 is slidably mounted on the base 11 for clamping the workpiece 4 to be processed; the locking mechanism is located on the base 11 for selectively locking the slide 12 to the base 11 and / or the fixed worktable 3 to limit the relative movement of the slide 12 and the base 11; wherein, the sliding direction of the slide 12 relative to the base 11 is parallel to the line connecting the first spindle and the second spindle.

[0028] Specifically, the CNC double-sided boring and milling machining center includes a first main machine and a second main machine arranged opposite to each other. The first main machine is equipped with a first spindle, and the second main machine is equipped with a second spindle. The first spindle and the second spindle are arranged opposite to each other. A fixed worktable 3 is located between the first main machine and the second main machine, and its extension direction is perpendicular to the line connecting the first spindle and the second spindle.

[0029] Specifically, the base 11 is fixedly mounted on the fixed worktable 3, and the slide 12 is slidably mounted on the base 11. The sliding direction of the slide 12 relative to the base 11 is parallel to the line connecting the first spindle and the second spindle, so that the workpiece 4 to be processed can move along the line connecting the first spindle and the second spindle in one clamping, thereby adjusting the position of the workpiece 4 to be processed relative to the spindle.

[0030] Specifically, the workpiece 4 to be processed is clamped in the slide 12 for alignment, and the slide 12 is locked to the base 11 and / or the fixed worktable 3 by the locking mechanism. Then, one end of the workpiece 4 is processed. When one end of the workpiece 4 is finished or the tool stroke is insufficient, the locking mechanism is released, and the workpiece 4 and the slide 12 are slid along the guide rail 111 to another processing position by the traction device. Then, the locking mechanism is locked again, and then the other end of the workpiece 4 is processed. Using the workpiece sliding support device 1, there is no need to clamp the workpiece 4 twice, which avoids alignment errors and improves processing efficiency and accuracy.

[0031] It should be noted that in this embodiment, the workpiece 4 to be processed is a transition section irregular boom, such as... Figure 6 As shown.

[0032] Furthermore, such as Figure 3 As shown, the base 11 is provided with at least two guide rails 111, and a slider 112 is slidably arranged on the guide rails 111. The slider 112 is fixedly connected to the slide block 112. The extension direction of the guide rails 111 is parallel to the line connecting the first spindle and the second spindle.

[0033] Specifically, the upper surface of the base 11 is provided with at least two parallel guide rails 111, the extension direction of the guide rails 111 is parallel to the line connecting the first main shaft and the second main shaft; the guide rails 111 are specifically linear guide rails 111; the slider 112 is disposed on the guide rails 111 and cooperates with the guide rails 111 through balls or rollers to form a sliding connection.

[0034] Preferably, in this embodiment, the base 11 is provided with two parallel guide rails 111, and each guide rail 111 is provided with four sliders 112, which are spaced apart.

[0035] Specifically, the slide 12 is provided with a plurality of first fixing hole groups 125, and the slider 112 is provided with a second fixing hole group. The positions of the first fixing hole group 125 and the second fixing hole group are corresponding. The slide 12 is fixedly connected to the base 11 by bolts passing through the first fixing hole group 125 and the second fixing hole group in sequence.

[0036] Furthermore, such as Figure 2 As shown, the locking mechanism includes at least one threaded hole 121 and a locking bolt; the threaded hole 121 is formed in the slide 12; the locking bolt is threaded into the threaded hole 121, and the end of the locking bolt passes through the threaded hole 121 and abuts against the base 11 to lock the slide 12 to the base 11.

[0037] Specifically, a through-hole 121 is provided on the side of the slide 12, specifically on the side wall of the slide 12 extending in the sliding direction. The through-hole 121 is a through hole, and the locking bolt is threaded into the through-hole 121. When the slide 12 needs to be locked, the locking bolt is turned to move it toward the base 11. The end of the locking bolt passes through the through-hole 121 and abuts against the side of the base 11. Through the friction between the end of the locking bolt and the base 11, the slide 12 is locked onto the base 11. When the slide 12 needs to slide, the locking bolt is turned in the opposite direction to disengage its end from the base 11, thereby releasing the lock on the slide 12. At this time, the slide 12 can slide along the guide rail 111.

[0038] Preferably, in this embodiment, multiple threaded holes 121 are designed on both sides of the slide block 12. The threaded holes 121 on each side are arranged at intervals along the sliding direction. The number and distribution of the threaded holes 121 are determined according to the length of the slide block 12 and the weight of the workpiece, so that the slide block 12 does not move after locking.

[0039] Furthermore, the locking mechanism also includes: a plurality of T-slots 31 are provided on the fixed worktable 3, and the plurality of T-slots 31 are arranged in sequence; a first protrusion 122 is provided on the slide 12, and a first through hole 123 is provided on the first protrusion 122, and a fastener passes through the first through hole 123 and connects to one of the T-slots 31 to lock the slide 12 to the fixed worktable 3; wherein, the sliding direction of the slide 12 relative to the base 11 is perpendicular to the extension direction of the T-slots 31.

[0040] It should be noted that multiple T-slots 31 are provided on the fixed worktable 3 along its length direction. The multiple T-slots 31 are arranged in parallel in sequence along the width direction of the fixed worktable 3, and the cross-section of the T-slots 31 is T-shaped.

[0041] Specifically, the slide 12 is provided with a first protrusion 122, which is a lug structure extending outward from the side wall of the slide 12. A first through hole 123 is provided on the first protrusion 122. The fasteners are bolts and nuts. When the slide 12 needs to be locked, the bolt is passed through the first through hole 123 and the T-slot 31 below, and threadedly connected to the nut provided in the T-slot 31. The bolt is tightened to lock the slide 12 onto the fixed worktable 3. When the slide 12 needs to slide, the bolt is turned in the opposite direction to separate it from the nut, thereby releasing the lock on the slide 12.

[0042] Specifically, multiple T-slots 31 are arranged along the width direction of the fixed worktable 3, and the sliding direction of the slide block 12 relative to the base 11 is perpendicular to the extension direction of the T-slots 31. Therefore, when the slide block 12 slides to different positions, it can be locked in different positions by cooperating with the T-slots 31 at different positions through the first through hole 123.

[0043] It should be noted that the locking mechanism locks the slide 12 to the base 11 through the threaded hole 121 and the locking bolt; or the locking mechanism locks the slide 12 to the fixed worktable 3 through the first through hole 123 and the T-slot 31; or the slide 12 is locked to the base 11, and the first through hole 123 and the T-slot 31 cooperate to lock the slide 12 to both the base 11 and the fixed worktable 3, thereby achieving double locking.

[0044] Furthermore, the upper surface of the slide 12 is provided with a plurality of mounting holes 124, which are arranged along the sliding direction of the slide 12; the pressure plate is fixedly connected to one of the mounting holes 124 by fasteners, and the pressure plate is used to press and fix the workpiece 4 to be processed onto the slide 12.

[0045] Specifically, the upper surface of the slide 12 is a plane for placing the workpiece 4 to be processed; the upper surface of the slide 12 has multiple mounting holes 124, which are arranged at intervals along the sliding direction of the slide 12. The corresponding mounting hole 124 can be selected according to the length of the workpiece 4 to be processed and the clamping position; when clamping the workpiece 4 to be processed, first place the shim on the upper surface of the slide 12, then place the workpiece 4 to be processed on the shim, and then press and fix the workpiece 4 to be processed by the pressure plate, screw and nut to ensure that the workpiece 4 to be processed does not move during the processing.

[0046] Preferably, in this embodiment, two sets of threaded holes 121 are provided on the upper surface of the slide block 12, and the two sets of threaded holes 121 are arranged at intervals along the sliding direction of the slide block 12.

[0047] Furthermore, such as Figure 4 As shown, the fixed worktable 3 has multiple T-slots 31 arranged in sequence; the base 11 has a second protrusion 113, and the second protrusion 113 has a second through hole 114. The fastener passes through the second through hole 114 and connects to one of the T-slots 31 to lock the base 11 to the fixed worktable 3.

[0048] Specifically, the base 11 is provided with a second protrusion 113, which is a lug structure extending outward from the side wall of the base 11. A second through hole 114 is provided on the second protrusion 113. The fasteners are bolts and nuts. The bolts pass through the second through hole 114 and the T-slot 31 directly below, and are threadedly connected to the nuts provided in the T-slot 31. Tightening the bolts will fix the base 11 on the fixed workbench 3.

[0049] Preferably, in this embodiment, two workpiece sliding support devices 1 are provided on the fixed worktable 3. The two workpiece sliding support devices 1 are arranged in parallel, and the distance between the two workpiece sliding support devices 1 is determined according to the workpiece 4 to be processed.

[0050] Furthermore, such as Figure 5 As shown, the workpiece sliding support device 1 also includes a fixed seat 2, which is located on the fixed worktable 3 and serves as the force support point for the traction device.

[0051] It should be noted that in this embodiment, a traction device applies a traction force to the workpiece 4 to be processed, thereby realizing the movement of the workpiece 4. Preferably, the traction device is a hand-operated hoist.

[0052] Specifically, the fixed seat 2 is set on the fixed workbench 3 and is located in the middle between the two workpiece sliding support devices 1, so as to serve as the force support point when the traction device applies force; one end of the traction device is connected to the fixed seat 2 and the other end is connected to the workpiece 4 to be processed. By operating the traction device, the workpiece 4 to be processed is pulled with the fixed seat 2 as the fulcrum, so that the workpiece 4 to be processed and the slide 12 move together.

[0053] Furthermore, a pull lug 21 is rotatably provided on the top of the fixed base 2. The pull lug 21 is used to connect the traction device and serve as a force support point when the traction device drives the slide block 12 to slide.

[0054] Specifically, the top of the fixed base 2 is provided with a neck, one end of the pull ear 21 is provided with a connecting hole, and the other end is sleeved on the neck of the fixed base 2 and can rotate around the axis of the fixed base 2, thereby realizing the adjustment of the angle of the pull ear 21; the connecting hole of the pull ear 21 is used to connect the traction device.

[0055] Furthermore, a T-slot 31 is provided on the fixed workbench 3; a retaining plate 22 is provided at the bottom of the fixed seat 2, and the retaining plate 22 is engaged with the T-slot 31 to fix the fixed seat 2 to the fixed workbench 3.

[0056] Specifically, the bottom of the fixed base 2 is provided with a retaining plate 22, which engages with the T-slot 31 on the fixed worktable 3, thereby fixing the fixed base 2 on the fixed worktable 3.

[0057] Example 2:

[0058] This embodiment provides a specific operating method applicable to the workpiece sliding support device 1 as in Embodiment 1.

[0059] It should be noted that in this embodiment, the workpiece 4 to be processed is a transition section irregular boom, and the traction device is a hand chain hoist, but the scope of protection of the present invention is not limited to this specific application.

[0060] The operation method is as follows:

[0061] The first step is to set the bases 11 of the two workpiece sliding support devices 1 on the fixed worktable 3 respectively and fix them with fasteners; install the fixed seat 2 in the middle position between the two sliding support devices, so that the clamping plate 22 at the bottom of the fixed seat 2 engages with the T-slot 31 of the fixed worktable 3; wherein, the two workpiece sliding support devices 1 are arranged in parallel, and the extension direction of the guide rail 111 is parallel to the line connecting the first spindle and the second spindle, and the distance between the two workpiece sliding support devices 1 is determined according to the transition section irregular boom.

[0062] The second step is to place a shim on the upper surface of the slide block 12, hoist the transition section irregular boom onto the upper surface of the slide block 12 of the workpiece sliding support device 1, and place the joint at the bottom of the transition section irregular boom on the shim. The transition section irregular boom is then pressed and fixed onto the slide block 12 by the pressure plate and fasteners. Then, the alignment is performed to ensure that the workpiece position is accurate. After clamping, the slide block 12 is locked to the base 11 and the fixed worktable 3 by the locking mechanism.

[0063] The third step involves using the first spindle of a CNC double-sided boring and milling machining center to machine one side of the transition section of the irregular boom.

[0064] Fourth step: After the processing of one side of the transition section irregular boom is completed, unlock the slide 12 from the base 11; wrap one end of the hand chain hoist around the unprocessed side of the transition section irregular boom, and connect the hook of the other end to the connecting hole of the pull lug 21 of the fixed seat 2. Pull the chain of the hand chain hoist, and with the fixed seat 2 as the force support point, pull the transition section irregular boom and the two slides 12 to slide.

[0065] Fifth step: After the transition section of the irregular boom is moved into place, the slide 12 is locked to the base 11 and the fixed worktable 3 by the locking mechanism; the second spindle of the CNC double-sided boring and milling machining center is used to process one side of the transition section of the irregular boom.

[0066] Using the above operating method, the workpiece 4 can be processed on both sides in one clamping, without the need for secondary clamping and alignment, thus avoiding errors caused by secondary clamping and improving production efficiency and processing accuracy.

[0067] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "up," "down," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to explain the relative positional relationship and movement between components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. These terms are used only for the convenience of describing the invention and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention.

[0068] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0069] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0070] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A workpiece sliding support device, applied to a CNC double-sided boring and milling machining center, the CNC double-sided boring and milling machining center comprising a fixed worktable and a first spindle and a second spindle disposed opposite to each other on both sides of the fixed worktable, characterized in that, The workpiece sliding support device includes: A base, which is fixedly mounted on the fixed workbench; A slide block, which is slidably disposed on the base, is used to clamp the workpiece to be processed; A locking mechanism, disposed on the base, is used to selectively lock the slide to the base and / or the fixed worktable to restrict the relative movement of the slide and the base; The sliding direction of the slide relative to the base is parallel to the line connecting the first main shaft and the second main shaft.

2. The workpiece sliding support device according to claim 1, characterized in that, The base is provided with at least two guide rails, and a slider is slidably disposed on the guide rails. The slider is fixedly connected to the slide block. The extension direction of the guide rail is parallel to the line connecting the first spindle and the second spindle.

3. The workpiece sliding support device according to claim 1, characterized in that, The locking mechanism includes: At least one threaded hole is provided in the slide; A locking bolt is threaded into the threaded hole, and the end of the locking bolt passes through the threaded hole and abuts against the base to lock the slide block to the base.

4. The workpiece sliding support device according to claim 1, characterized in that, The locking mechanism further includes: The fixed workbench is provided with multiple T-slots, which are arranged in sequence. The slide block is provided with a first protrusion, and the first protrusion has a first through hole. The fastener passes through the first through hole and connects to one of the T-slots to lock the slide block to the fixed worktable. The sliding direction of the slide relative to the base is perpendicular to the extension direction of the T-slot.

5. The workpiece sliding support device according to claim 1, characterized in that, The upper surface of the slide block is provided with a plurality of mounting holes, which are arranged along the sliding direction of the slide block; The pressure plate is fixedly connected to one of the mounting holes by fasteners, and the pressure plate is used to press and fix the workpiece to be processed to the slide.

6. The workpiece sliding support device according to claim 1, characterized in that, The fixed workbench is provided with multiple T-slots, which are arranged in sequence. The base has a second protrusion with a second through hole. A fastener passes through the second through hole and connects to one of the T-slots to lock the base to the fixed workbench.

7. The workpiece sliding support device according to claim 1, characterized in that, Also includes: A fixed base is provided on the fixed workbench and is used as a force support point for the traction device.

8. The workpiece sliding support device according to claim 7, characterized in that, The top of the fixed base is rotatably provided with a pull lug, which is used to connect to the traction device and serve as a force support point when the traction device drives the slide to slide.

9. The workpiece sliding support device according to claim 7, characterized in that, The fixed workbench is provided with a T-slot; The bottom of the fixed base is provided with a retaining plate, which engages with the T-slot to fix the fixed base to the fixed workbench.

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