Bidirectional grinding device suitable for anti-collision beam

Abstract

The bidirectional grinding device comprises a workbench and two grinding mechanisms symmetrically arranged on the workbench, and each grinding mechanism comprises a fixing assembly, a telescopic driving unit, a grinding assembly, a lifting driving assembly and a mounting base mounted at the top end of the lifting driving assembly; the fixing assembly is used for fixedly supporting the end of a to-be-polished workpiece, and the lifting driving assembly is used for controlling the polishing degree of the polishing assembly to the to-be-polished workpiece. Inclined guide slideways are formed in the two inner side faces of the mounting base, the guide slideways are in sliding fit with the polishing assembly, and the inclination degree of the guide slideways is the same as the radian of the machining face of the to-be-polished workpiece; the fixed end of the telescopic driving unit is rotationally connected with the center position of the workbench, the movable end of the telescopic driving unit is rotationally connected with the bottom of the grinding assembly, and the telescopic driving unit is used for driving the grinding assembly to reciprocate on the machining face of the to-be-ground workpiece along the guide sliding way.

Description

Technical Field

[0001] This invention relates to the technical field of automotive crash beam processing equipment, and in particular to a bidirectional grinding device suitable for crash beams. Background Technology

[0002] A crash beam is a device used to absorb collision energy when a vehicle is involved in a collision. It consists of a main beam, an energy-absorbing box, and a mounting plate that connects to the car. Both the main beam and the energy-absorbing box can effectively absorb collision energy when a vehicle is involved in a low-speed collision, minimizing the damage to the longitudinal beams of the vehicle body and thus protecting the vehicle.

[0003] During the manufacturing process of automotive crash beams, welding is required at the ends of the initially formed beams. However, after the previous galvanizing process, a galvanized layer remains on the surface, which can negatively impact subsequent welding, such as producing toxic gases, affecting weld quality, and increasing welding difficulty. Therefore, the edges of the crash beams need to be ground. Current grinding methods typically involve operators using handheld grinders, which suffers from low efficiency, high processing costs, and low grinding precision.

[0004] Therefore, based on the above-mentioned technical problems, this application proposes a bidirectional grinding device suitable for anti-collision beams that improves grinding efficiency, ensures grinding accuracy, and reduces processing costs. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bidirectional grinding device suitable for anti-collision beams that improves grinding efficiency, ensures grinding accuracy, and reduces processing costs.

[0006] To achieve the above objectives, the present invention provides a bidirectional grinding device suitable for anti-collision beams. The device includes a worktable and two grinding mechanisms symmetrically arranged on the worktable. Each grinding mechanism includes a fixing component, a telescopic drive unit, a grinding component, a lifting drive component, and a mounting base installed on the top of the lifting drive component. The lifting drive component and the fixing component are arranged side-by-side along the wide side of the worktable. The fixing component provides fixed support to the end of the workpiece to be ground, and the lifting drive component controls the grinding stroke of the grinding component on the workpiece. The mounting base has a U-shaped structure, and inclined guide slides are provided on both inner sides of the mounting base. The guide slides are slidably engaged with the grinding assembly, wherein the inclination of the guide slides is the same as the curvature of the workpiece surface to be ground; the mounting base is used to guide the movement direction of the grinding assembly; the fixed end of the telescopic drive unit is rotatably connected to the center position of the worktable, and the movable end of the telescopic drive unit is rotatably connected to the bottom of the grinding assembly. The telescopic drive unit is used to drive the grinding assembly to reciprocate along the guide slides on the workpiece surface to be ground.

[0007] Furthermore, a rotating support is installed at the center of the top of the workbench, and the rotating support is used to rotatably connect with the fixed end of the telescopic drive unit.

[0008] Furthermore, the telescopic drive unit is preferably cylinder driven.

[0009] Furthermore, the fixing component includes a fixing frame, a support pad, and a snap-fit ​​block. The support pad and the snap-fit ​​block are detachably mounted on the top of the fixing frame, and the top of the support pad and the snap-fit ​​block are both inclined block structures extending from the side end of the worktable towards its center. The snap-fit ​​block is used to engage with a fixing hole pre-set at the end of the workpiece. The support pad is located below the machining surface of the workpiece to be ground and is used to provide support to the machining surface of the workpiece to be ground.

[0010] Furthermore, the top of the snap-fit ​​block is provided with a fixing protrusion that engages with a fixing hole pre-set at the end of the workpiece to be ground.

[0011] Furthermore, the lifting drive assembly includes an upper limit seat, a lower limit seat, a primary hinge frame, and a secondary hinge frame. The upper limit seat has primary movable parts on both sides of its wide side, and the lower limit seat has secondary movable parts on both sides of its wide side. The primary hinge frame and the secondary hinge frame are hinged to each other by a pre-set pin to form an X-shaped lifting structure. The sliding end of the primary hinge frame is slidably connected to one end of the primary movable part, and its fixed end is fixed to one end of the secondary movable part. The sliding end of the secondary hinge frame is slidably connected to the other end of the secondary movable part, and its fixed end is fixed to the other end of the primary movable part.

[0012] Furthermore, the lifting drive assembly also includes a primary connector and a secondary connector. The two ends of the primary connector are connected to the sliding end of the primary hinge frame, and the two ends of the secondary connector are connected to the fixed end of the secondary hinge frame.

[0013] Furthermore, the primary connector has a threaded hole extending and penetrating along its width direction, and the secondary connector has a through hole extending and penetrating along its width direction, wherein the through hole and the threaded hole are arranged coaxially.

[0014] Furthermore, the lifting drive assembly also includes a lifting adjustment component, wherein the end of the lifting adjustment component is provided with a thread; after the lifting adjustment component passes through the through hole of the secondary connector in sequence, it is threadedly engaged with the threaded hole of the primary connector; the lifting adjustment component controls the raising or lowering of the lifting drive assembly by rotation.

[0015] Furthermore, the grinding assembly includes a sliding seat, a power unit, and a grinding wheel. The power unit is mounted on the top of the sliding seat, and the grinding wheel is mounted on the movable end of the power unit. The power unit is used to drive the rotation of the grinding wheel. The bottom end of the sliding seat is provided with a primary connecting part for hinged connection with the movable end of the telescopic drive unit and at least one secondary connecting part. Sliding components for sliding connection with guide slides are installed on the outer side of each secondary connecting part.

[0016] The present invention adopts the above-described solution, and its beneficial effects are as follows: By setting up a lifting drive component and controlling the relative distance between the grinding end of the grinding component and the workpiece surface to be ground, the grinding accuracy can be precisely controlled. By setting up a mounting base, the telescopic drive unit reciprocates to push the grinding component back and forth along its inclined guide slide, achieving the purpose of grinding (polishing) the workpiece surface. This completely removes the galvanized layer from the surface, ensuring the quality of subsequent welding and the safety of the welding process. Furthermore, this bidirectional grinding device has two symmetrically arranged grinding mechanisms, which can grind both ends of the workpiece simultaneously, avoiding repeated positioning that would reduce processing accuracy and improving grinding efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the bidirectional polishing device in this embodiment.

[0018] Figure 2 This is a schematic diagram of the bidirectional polishing device in this embodiment.

[0019] Figure 3 This is a schematic diagram of the bidirectional polishing device in this embodiment.

[0020] Figure 4 for Figure 3 A magnified view of part A in the diagram.

[0021] Figure 5 This is a schematic diagram of the fixing component in this embodiment.

[0022] Figure 6 This is a schematic diagram of the mounting base in this embodiment.

[0023] Figure 7 This is a schematic diagram of the lifting drive component in this embodiment.

[0024] Figure 8 This is a schematic diagram of the lifting drive component in this embodiment.

[0025] Figure 9 This is a schematic diagram of the upper limit seat and the lower limit seat in this embodiment.

[0026] Figure 10 This is a side view of the upper limit seat and the lower limit seat in this embodiment.

[0027] Figure 11 This is a schematic diagram of the grinding component and the telescopic drive unit in this embodiment.

[0028] Figure 12 This is a side view of the grinding assembly and the telescopic drive unit in this embodiment.

[0029] Figure 13 This is a bottom view of the grinding component and the telescopic drive unit in this embodiment.

[0030] Among them, 1-worktable, 11-rotating support, 2-fixed component, 21-fixed frame, 22-support pad, 23-clamping block, 231-fixed protrusion, 3-telescopic drive unit, 4-grinding component, 41-sliding seat, 411-first-level connection, 412-second-level connection, 4121-clearance, 42-power unit, 43-grinding wheel, 44-sliding component, 45-bearing seat, 5-lifting drive component, 51-upper limit seat, 511-first-level movable part, 52-lower limit seat, 521-second-level movable part, 53-first-level hinge frame, 54-second-level hinge frame, 55-first-level connector, 551-screw hole, 56-second-level connector, 561-through hole, 57-third-level connector, 58-fourth-level connector, 59-lifting adjustment component, 6-mounting seat, 61-guide slide, 7-workpiece, 71-fixed hole, 72-machined surface. Detailed Implementation

[0031] To facilitate understanding of the present invention, a more complete description is given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0032] See appendix Figure 1-13 As shown in this embodiment, a bidirectional grinding device suitable for anti-collision beams includes a worktable 1 and two grinding mechanisms symmetrically arranged on the worktable 1. Each grinding mechanism includes a fixing component 2, a telescopic drive unit 3, a grinding component 4, a lifting drive component 5, and a mounting base 6 installed on the top of the lifting drive component 5. The lifting drive component 5 and the fixing component 2 are arranged side by side along the wide side of the worktable 1. The fixing component 2 is used to fix and support the end of the workpiece 7 to be ground. The part is fixedly supported, and the lifting drive component 5 is used to control the grinding degree of the grinding component 4 on the workpiece 7 to be ground. That is, by adjusting the distance in the height direction between the grinding end of the grinding component 4 and the processing surface 72 of the workpiece 7 to be ground, the grinding degree of the workpiece 7 to be ground can be controlled. The grinding degree can be adjusted according to the thickness of the galvanized layer on the processing surface 72 to ensure the grinding quality. In addition, since there are two grinding mechanisms and they are symmetrically arranged on the worktable 1, the processing surfaces 72 at both ends of the workpiece 7 to be ground can be ground simultaneously, improving the overall grinding efficiency.

[0033] See appendix Figure 6 As shown, in this embodiment, the mounting base 6 has a U-shaped cross-section, and inclined guide slides 61 are provided on both inner sides of the mounting base 6. The guide slides 61 slide in cooperation with the grinding assembly 4. The inclination of the guide slides 61 is the same as the curvature of the machining surface 72 of the workpiece 7 to be ground (here, depending on the actual situation, guide slides 61 that do not penetrate along their width direction or guide slots that penetrate along their width direction can be provided on the two inner sides of the mounting base 6). The mounting base 6 is used to guide the movement direction of the grinding assembly 4. Specifically, the mounting base 6 consists of a base plate and two opposing support plates (the guide slides 61 are provided on the inner sides of the support plates). At least two mounting holes penetrating along their height direction are provided at the top of each support plate, through which pre-set bolts are passed to detachably and spacedly install the support plates on the top of the base plate. The spaced structure provides movement space for the grinding assembly 4 and can accommodate different curvatures of the machining surface 72 of the workpiece 7 to be ground. See appendix Figure 4-5As shown, in this embodiment, the fixing component 2 includes a fixing frame 21, a support pad 22, and a snap-fit ​​block 23; both the support pad 22 and the snap-fit ​​block 23 are detachably mounted on the top of the fixing frame 21, and the top of the support pad 22 is an inclined block structure extending obliquely from the side end of the worktable 1 towards its center (see attached figure). Figure 5 As shown, the snap-fit ​​block 23 can be set to the same inclined block structure as the support pad block 22 according to the actual situation. Specifically, the two are arranged at intervals along the long side of the fixing frame 21. Furthermore, the support pad block 22 and the snap-fit ​​block 23 are installed in a detachable manner, and can be replaced according to the curvature of the machining surface 72 of the workpiece 7 to be ground according to different specifications. This allows the support pad block 22 and the snap-fit ​​block 23 to cooperate with each other to provide a support surface that matches the curvature of the machining surface 72 of the workpiece 7 to be ground, ensuring a stable fixing effect on the workpiece 7 to be ground.

[0034] See appendix Figure 4-5 As shown, the snap-fit ​​block 23 is used to snap into the pre-set fixing hole 71 at the end of the workpiece 7 to be ground. The support pad 22 is located below the processing surface 72 of the workpiece 7 to be ground (in order to provide support for the processing surface 72 and avoid deformation of the workpiece 7 during grinding due to lack of support for the processing surface 72, which would affect the grinding effect, i.e., failure to completely remove the galvanized layer of the processing surface 72, thus affecting the subsequent welding effect). The support pad 22 is used to provide support for the processing surface 72 of the workpiece 7 to be ground. Furthermore, the top of the snap-fit ​​block 23 is provided with a fixing protrusion 231 that snaps into the pre-set fixing hole 71 at the end of the workpiece 7 to be ground. The symmetrically arranged fixing protrusions 231 achieve two-point fixation of the workpiece 7 to be ground. With the snap-fit ​​block 23 and the support pad 22, the workpiece 7 to be ground is stably fixed, ensuring the grinding quality.

[0035] See appendix Figure 1-13 As shown, in this embodiment, the fixed end of the telescopic drive unit 3 is rotatably connected to the center position of the worktable 1 (i.e., serving as the fixed point of the telescopic drive unit 3, making it easier to reciprocate and push the movement of the grinding component 4), and the movable end of the telescopic drive unit 3 is rotatably connected to the bottom of the grinding component 4. The telescopic drive unit 3 is preferably driven by a cylinder (its specific specifications and models can be set according to actual conditions, and are not specifically limited here). The telescopic drive unit 3 is used to cooperate with the lifting drive component 5 to drive the grinding component 4 along the guide slide 61 to reciprocate on the processing surface 72 of the workpiece 7 according to the curvature of the surface 72 to be ground, so that the grinding component 4 can repeatedly grind / polish the surface 72 of the workpiece 7. Furthermore, the operator can set parameters such as the number of grinding times / grinding time / movement time of the grinding component 4 according to the specific conditions of the workpiece 7 to be ground, thereby ensuring the output quality of the workpiece 7 after grinding.

[0036] It should be noted that the workpiece 7 mentioned in this embodiment is an automobile anti-collision beam. In the conventional processing of automobile anti-collision beams, it is necessary to weld the ends of the initially processed anti-collision beam. However, after the previous galvanizing process, there is a galvanized layer on the surface of the anti-collision beam. This galvanized layer will have a certain impact on the subsequent welding process of the anti-collision beam, such as generating toxic gases, affecting welding quality, and increasing welding difficulty. Therefore, it is necessary to grind the edges of the anti-collision beam. The existing grinding method is generally to have the operator hold a grinder to grind the anti-collision beam, which has the disadvantages of low grinding efficiency, high processing cost, and low grinding accuracy.

[0037] In this embodiment, by setting up the lifting drive component 5, the relative distance between the grinding end of the grinding component 4 and the processing surface 72 of the workpiece 7 to be ground is controlled to achieve precise control of the grinding accuracy. By setting up the mounting base 6, the telescopic drive unit 3 is made to push the grinding component 4 back and forth along the guide slide 61 arranged on its inclined side to achieve the purpose of grinding (polishing) the processing surface 72 of the workpiece 7 to be ground, thereby completely removing the galvanized layer of the processing surface 72, ensuring the quality of subsequent welding and the safe progress of the welding process.

[0038] See appendix Figure 1 As shown, a rotating support 11 is further installed at the center of the top of the workbench 1 (which is installed by a preset bolt). The rotating support 11 is used to rotately connect with the fixed end of the telescopic drive unit 3, thereby providing the fixed end of the telescopic drive unit 3 with a function that allows relative rotation, making it more adaptable to the inclined guide slide 61, and realizing the reciprocating pushing and grinding assembly 4 moving along the guide slide 61.

[0039] See appendix Figure 7-10 As shown, in this embodiment, the lifting drive assembly 5 includes an upper limit seat 51, a lower limit seat 52, a primary hinge frame 53, and a secondary hinge frame 54. The upper limit seat 51 has primary movable parts 511 on both sides of its wide side, and the lower limit seat 52 has secondary movable parts 521 on both sides of its wide side. The specific structure of these movable parts is that they first extend downwards along the height direction of the limit seat, and then extend towards the center along its width direction (i.e., refer to the attached diagram). Figure 10As shown, both have a concave structure. The middle part of each primary hinge frame 53 and the middle part of the corresponding secondary hinge frame 54 are hinged to each other by a preset pin to form an X-shaped lifting structure. The primary hinge frame 53 and the secondary hinge frame 54 are hinged to each other by a preset pin. The sliding end of the primary hinge frame 53 is slidably connected to one end of the primary movable part 511, and its fixed end is fixed to one end of the secondary movable part 521. The sliding end of the secondary hinge frame 54 is slidably connected to the other end of the secondary movable part 521, and its fixed end is fixed to the other end of the primary movable part 511. Furthermore, the above-mentioned pin structure can be set according to the actual situation, and no specific limitation is made here. In addition, the hinge between the primary hinge frame 53 and the secondary hinge frame 54 can be replaced by riveting, and no specific limitation is made here.

[0040] See appendix Figure 7-10 As shown, the lifting drive assembly 5 further includes a primary connector 55, a secondary connector 56, a tertiary connector 57, and a quaternary connector 58. The two ends of the primary connector 55 are connected to the sliding ends of the primary hinge frame 53. The two ends of the secondary connector 56 are connected to the fixed ends of the secondary hinge frame 54. The two ends of the tertiary connector 57 are connected to the sliding ends of the secondary hinge frame 54. The two ends of the quaternary connector 58 are connected to the fixed ends of the primary hinge frame 53. The secondary connector 56 is used to improve the support / stability of the fixed ends of the secondary hinge frame 54, and the quaternary connector 58 is used to improve the support / stability of the fixed ends of the primary hinge frame 53. The two ends of the primary connector 55 (after being connected to the sliding ends of the primary hinge frame 53) protrude along its length. There is a primary mounting shaft, and the two ends of the tertiary connector 57 (after being connected to the sliding end of the secondary hinge frame 54) are formed with secondary mounting shafts protruding along their length. Primary sliding wheels are slidably mounted on both the primary and secondary mounting shafts so that the primary sliding wheels can slide and engage with the primary movable part 511 or the secondary movable part 521. This achieves sliding engagement of the sliding end of the primary hinge frame 53 in the primary movable part 511 (and the secondary hinge frame 54 in the secondary movable part 521) while relatively reducing sliding wear (i.e. reducing wear on the sliding end of the hinge frame and the inner wall of the movable part). Furthermore, the primary sliding wheels are replaceable. In case of damage, only the primary sliding wheels can be replaced to avoid replacing the entire hinge frame, thus reducing maintenance costs.

[0041] See appendix Figure 7-10As shown, further, the primary connector 55 has a threaded hole 551 extending and penetrating along its width direction, and the secondary connector 56 has a through hole 561 extending and penetrating along its width direction. The through hole 561 and the threaded hole 551 are arranged coaxially to facilitate the passage of the lifting adjustment member 59. The lifting drive assembly 5 also includes a lifting adjustment member 59, the end of which is threaded (not shown in the figure). After passing through the through hole 561 of the secondary connector 56, the lifting adjustment member 59 engages with the threaded hole 551 of the primary connector 55, allowing the primary connector 55 to move closer to or further away from the secondary connector 56 as the lifting adjustment member 59 rotates. Simultaneously, based on the X-axis between the primary hinge frame 53 and the secondary hinge frame 54... The lifting structure allows the primary hinge frame 53 and the secondary hinge frame 54 to extend or retract, thereby realizing the lifting function of the lifting drive assembly 5. When the operator prepares to place the workpiece 7 to be polished, the lifting adjustment component 59 is adjusted to control the lifting drive assembly 5 to raise the polishing assembly 4, ensuring sufficient height for the operator to place the workpiece 7. After placement, the lifting adjustment component 59 is adjusted in the opposite direction to control the lifting drive assembly 5 to lower the height of the polishing assembly 4. The height of the polishing assembly 4 can be further adjusted according to specific polishing needs (or after completing one polishing process) to ensure that the polishing assembly 4 can perform precise polishing (polishing) of the workpiece 7 and improve the polishing quality.

[0042] See appendix Figure 11-13 As shown, in this embodiment, the grinding assembly 4 includes a sliding seat 41, a power unit 42, and a grinding wheel 43. The power unit 42 is mounted on the top of the sliding seat 41, and the grinding wheel 43 is mounted on the movable end of the power unit 42. The power unit 42 is used to drive the rotation of the grinding wheel 43. The bottom end of the sliding seat 41 is provided with a primary connecting part 411 for hinged to the movable end of the telescopic drive unit 3 and at least one, preferably two, secondary connecting parts 412. The primary connecting part 411 is preferably a non-rotatable pin hinged to the movable end of the telescopic drive unit 3 (i.e., The outer circumferential surface of the pin is a non-circular structure to avoid the phenomenon that the sliding seat 41 will shift and not move along the guide slide 61 when the telescopic drive unit 3 pushes the sliding seat 41, thus ensuring the realization of the reciprocating movement function of the grinding component 4. Secondly, it is preferable to set the primary connecting part 411 at the center of the bottom end of the sliding seat 41, and it is preferable to set the secondary connecting parts 412 on both sides of the primary connecting part 411. Among them, the connecting part near the telescopic drive unit 3 is provided with a clearance opening 4121 for avoiding the movable end of the telescopic drive unit 3 (see attached figure). Figure 13 As shown), this avoids the movable end of the telescopic drive unit 3, allowing it to be movably hinged to the primary connecting part 411.

[0043] See appendix Figure 11-13 As shown, furthermore, sliding components 44 for sliding connection with guide slide 61 are installed on both ends of the secondary connecting part 412. The sliding component 44 includes a secondary connecting pin and a secondary sliding wheel fitted on the other end of the connecting pin. By setting the sliding component 44, the sliding wheel and guide slide 61 can be slidably engaged while relatively reducing sliding wear (i.e., reducing wear on the inner wall of guide slide 61). In addition, the grinding component 4 also includes a bearing seat 45 installed on the sliding seat 41. The bearing seat 45 is used to provide support for the movable end of the power unit 42 (so that the movable end of the power unit 42 can pass through it), and there is a bearing between the bearing seat 45 and the movable end of the power unit 42 to avoid wear on the bearing seat 45 caused by the rotation of the movable end of the power unit 42, and to ensure the normal operation of the power unit 42 (the specific specifications and models of the power unit 42 and the grinding wheel 43 can be set according to the actual situation, and are not specifically limited here).

[0044] Furthermore, the lifting adjustment component 59 can be externally connected to a preset rotating motor (which can be controlled at the rear end; not shown in the figure). By driving the rotating motor to rotate, the lifting drive component 5 can be raised or lowered, making it easier for the operator to control the grinding degree of multiple bidirectional grinding devices at the same time.

[0045] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any modifications or variations made by those skilled in the art, without departing from the scope of the present invention, using the disclosed technical content, are equivalent embodiments of the present invention. Therefore, all equivalent changes made based on the concept of the present invention without departing from the scope of the present invention should be covered within the protection scope of the present invention.

Claims

1. A bidirectional grinding device suitable for anti-collision beams, characterized in that: The device includes a worktable (1) and two grinding mechanisms symmetrically arranged on the worktable (1). Each grinding mechanism includes a fixing component (2), a telescopic drive unit (3), a grinding component (4), a lifting drive component (5), and a mounting base (6) mounted on the top of the lifting drive component (5). The lifting drive component (5) and the fixing component (2) are arranged side by side along the wide side of the worktable (1). The fixing component (2) is used to fix and support the end of the workpiece (7) to be ground. The lifting drive component (5) is used to control the grinding degree of the workpiece (7) by the grinding component (4). The mounting base (6) has a U-shaped structure. The two inner sides of the workpiece (7) are provided with inclined guide slides (61), which slide in cooperation with the grinding assembly (4). The inclination of the guide slides (61) is the same as the curvature of the machining surface (72) of the workpiece (7) to be ground. The mounting base (6) is used to guide the movement direction of the grinding assembly (4). The fixed end of the telescopic drive unit (3) is rotatably connected to the center position of the worktable (1), and the movable end of the telescopic drive unit (3) is rotatably connected to the bottom of the grinding assembly (4). The telescopic drive unit (3) is used to drive the grinding assembly (4) to move back and forth along the guide slides (61) on the machining surface (72) of the workpiece (7) to be ground.

2. The bidirectional grinding device for anti-collision beams according to claim 1, characterized in that: A rotating support (11) is installed at the center of the top of the workbench (1), and the rotating support (11) is used to rotately connect with the fixed end of the telescopic drive unit (3).

3. The bidirectional grinding device for anti-collision beams according to claim 1, characterized in that: The telescopic drive unit (3) is preferably cylinder driven.

4. The bidirectional grinding device for anti-collision beams according to claim 1, characterized in that: The fixing component (2) includes a fixing frame (21), a support pad (22), and a snap-fit ​​block (23). The support pad (22) and the snap-fit ​​block (23) are detachably installed on the top of the fixing frame (21). The top of the support pad (22) and the snap-fit ​​block (23) are inclined block structures that extend from the side end of the worktable (1) toward its center. The snap-fit ​​block (23) is used to snap-fit ​​with the fixing hole (71) pre-set at the end of the workpiece (7). The support pad (22) is located below the processing surface (72) of the workpiece (7) to be ground, and the support pad (22) is used to provide support to the processing surface (72) of the workpiece (7) to be ground.

5. A bidirectional grinding device for anti-collision beams according to claim 4, characterized in that: The top of the snap-fit ​​block (23) is provided with a fixing protrusion (231) that engages with the fixing hole (71) pre-set at the end of the workpiece (7) to be ground.

6. The bidirectional grinding device for anti-collision beams according to claim 1, characterized in that: The lifting drive assembly (5) includes an upper limit seat (51), a lower limit seat (52), a primary hinge frame (53), and a secondary hinge frame (54). The upper limit seat (51) has a primary movable part (511) on both sides of its wide side, and the lower limit seat (52) has a secondary movable part (521) on both sides of its wide side. The primary hinge frame (53) and the secondary hinge frame (54) are hinged to each other by a preset pin to form an X-shaped lifting structure. The sliding end of the primary hinge frame (53) is slidably connected to one end of the primary movable part (511), and its fixed end is fixed to one end of the secondary movable part (521). The sliding end of the secondary hinge frame (54) is slidably connected to the other end of the secondary movable part (521), and its fixed end is fixed to the other end of the primary movable part (511).

7. A bidirectional grinding device for anti-collision beams according to claim 6, characterized in that: The lifting drive assembly (5) also includes a primary connector (55) and a secondary connector (56). The two ends of the primary connector (55) are connected to the sliding end of the primary hinge frame (53), and the two ends of the secondary connector (56) are connected to the fixed end of the secondary hinge frame (54).

8. A bidirectional grinding device for anti-collision beams according to claim 7, characterized in that: The primary connector (55) has a threaded hole (551) extending and penetrating along its width direction, and the secondary connector (56) has a through hole (561) extending and penetrating along its width direction, wherein the through hole (561) and the threaded hole (551) are arranged on the same axis.

9. A bidirectional grinding device for anti-collision beams according to claim 8, characterized in that: The lifting drive assembly (5) further includes a lifting adjustment component (59), wherein the end of the lifting adjustment component (59) is provided with a thread; after the lifting adjustment component (59) passes through the through hole (561) of the secondary connector (56) in sequence, it is threadedly engaged with the screw hole (551) of the primary connector (55); the lifting adjustment component (59) controls the lifting drive assembly (5) to rise or fall by rotating.

10. A bidirectional grinding device for anti-collision beams according to claim 1, characterized in that: The grinding assembly (4) includes a sliding seat (41), a power unit (42), and a grinding wheel (43). The power unit (42) is mounted on the top of the sliding seat (41), and the grinding wheel (43) is mounted on the movable end of the power unit (42). The power unit (42) is used to drive the rotation of the grinding wheel (43). The bottom end of the sliding seat (41) is provided with a primary connecting part (411) for hinged to the movable end of the telescopic drive unit (3) and at least one secondary connecting part (412). The outer side of the secondary connecting part (412) is equipped with a sliding assembly (44) for sliding connection with the guide slide (61).

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