Auxiliary supporting device for processing of a breechblock front plate

Abstract

The utility model relates to workpiece clamping auxiliary device technical field discloses an auxiliary support device for shooting platform front plate machining, including cushion block body, the cushion block body is set up and is used for the support block of jacking shooting platform front plate and the top holding mechanism of driving support block to go up and down, and the top holding mechanism includes the top holding piece of opposite support block transverse activity setting, the first cooperation surface of being set up on the support block, the second cooperation surface of being formed with the first cooperation surface and when the top holding piece is close to support block and will support block upward jacking of sticking to the top holding piece on the top holding piece and the adjusting assembly of driving top holding piece reciprocating activity, this auxiliary device can drive support block upward jacking through the top holding mechanism, to make shooting platform front plate workpiece satisfy the clamping requirement thereby, the height of making up for the wear of cushion block body.

Description

Technical Field

[0001] This utility model relates to the technical field of workpiece clamping auxiliary devices, and in particular to an auxiliary support device for machining the front plate of a shooting table. Background Technology

[0002] The existing injection molding machine front plate structure can be referenced from Chinese Patent Publication No. CN219883134U, which discloses an injection molding machine front plate including a plate body, a cavity on the plate body, and guide pin holes and injection holes opened on the cavity. The cavity, guide pin holes, and injection holes are usually machined using a machining center, or the guide pin holes and injection holes are machined separately on a drilling machine. Since the guide pin holes and injection holes are through holes, several equal-height pads 3 need to be placed between the injection plate 2 and the machine tool worktable 1 during clamping. Then, the injection plate 2 is clamped and pressed onto the machine tool worktable 1 by the cooperation of screws 4, pressure plates 5, and support columns 6. The above structure can be seen in the accompanying drawings of the specification. Figure 1 As shown.

[0003] Over time, the pads will wear down, resulting in inconsistent pad heights. Therefore, before officially clamping the front plate of the firing table, the operator will first place the front plate on the pads and measure the flatness of the reference surface of the front plate to identify the worn pads. Then, the operator will use a crane to lift the front plate and select the appropriate shims to insert between the front plate and the pads according to the deviation value. The operator will then lower the front plate and re-clamp and measure until the flatness deviation is within the acceptable range. Finally, the front plate will be pressed down. Therefore, when the pads are worn, the process of checking the flatness of the front plate and balancing it is cumbersome, wastes a lot of time, and has low production efficiency. Utility Model Content

[0004] To address the drawback of existing pads requiring repeated balancing during clamping to ensure workpiece flatness after wear, which leads to time-consuming clamping, the purpose of this invention is to provide an auxiliary support device for machining the front plate of a shooting table that can adjust the support height.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method: An auxiliary support device for processing the front plate of a firing table includes a pad body, a support block for lifting the front plate of the firing table and a lifting mechanism for driving the support block to rise and fall, the lifting mechanism includes a lifting member that is laterally movable relative to the support block, a first mating surface that is inclined on the support block, a second mating surface formed on the lifting member that fits with the first mating surface and lifts the support block upward when the lifting member approaches the support block, and an adjustment component that drives the lifting member to reciprocate.

[0006] Using the above scheme, the auxiliary support device in this scheme still uses the pad block body as the main body for raising, and an adjustable support block is added on this basis. During the clamping process, the operator can identify the pad block body with wear based on the flatness measurement results of the reference surface of the front plate of the firing table, and control the lifting and lowering of the support block by adjusting the component to compensate for the flatness deviation caused by the wear of the pad block in real time and accurately until the flatness meets the qualified requirements. Then, the front plate of the firing table is pressed by the pressure plate to complete the clamping. Compared to existing technologies, the advantage of this device lies in upgrading the height compensation process from the traditional method of relying on overhead crane hoisting and manual shim selection to a precise leveling operation that can be completed directly online. This not only significantly reduces the difficulty and labor intensity of operation and greatly improves the efficiency of single clamping, but also helps to alleviate the scheduling pressure on overhead cranes in the workshop, providing effective support for accelerating the production cycle.

[0007] Preferably, the adjustment assembly includes an adjustment rod connected to the top support and partially extending outside the pad body, and a threaded adjustment structure provided between the adjustment rod and the pad body.

[0008] Preferably, the threaded adjustment structure includes a threaded section provided on the outer wall of the adjustment rod and a threaded sleeve that mates with the threaded section, the threaded sleeve being fixedly mounted on the pad body.

[0009] Preferably, the threaded sleeve is integrally formed with a non-circular anti-rotation block, and the block body has a through hole for installing the threaded sleeve. The opening of the through hole is expanded to form an installation groove for inserting the anti-rotation block, and the anti-rotation block is fixed to the installation groove by fasteners.

[0010] Using the above scheme, the threaded adjustment structure can achieve precise fine-tuning. Each time the operator rotates the adjustment rod by a certain angle, it corresponds to a precise top displacement, thereby achieving fine control over the lifting height of the support block. At the same time, the inherent self-locking characteristic of the threaded connection ensures that after adjustment, the support block can be stably maintained in the predetermined position without additional locking devices, effectively preventing loosening and slippage that may occur under processing vibration environment, and ensuring the rigidity of the support and the stability of the processing process.

[0011] Preferably, the top support has a sliding groove, and the adjusting rod has a locking joint that can slide into the sliding groove and pull or push the top support.

[0012] Using the above solution, the sliding groove is a T-shaped groove with an opening on one side of the top support. During installation, the adjusting rod is simply inserted into the opening of the sliding groove to complete the connection. This design ensures that the top support can slide smoothly with the adjusting rod while reliably transmitting both pushing and pulling forces. It not only significantly improves assembly efficiency but also greatly facilitates subsequent disassembly and maintenance, effectively reducing the maintenance cost and time of the device.

[0013] Preferably, the pad body has a receiving groove for accommodating the movement of the support block and the top support, and the support block can be completely housed in the receiving groove or partially protrude from the receiving groove.

[0014] Preferably, a limiting structure is provided between the support block and the pad body to prevent the support block from over-extending.

[0015] Preferably, the limiting structure includes a limiting bolt that passes through the support block and the top holder and is fixed to the pad body. The bottom of the receiving groove is provided with a threaded hole for connecting the limiting bolt. The top holder is provided with a waist-shaped hole for avoiding the limiting bolt during sliding. The support block is provided with a countersunk hole for accommodating the large end of the limiting bolt. The countersunk part of the countersunk hole and the large end of the limiting bolt have a matching distance greater than or equal to the lifting stroke of the support block.

[0016] Using the above scheme, the limiting structure in this scheme achieves coordinated constraint on the two moving parts, the support block and the top holder, through a single limiting bolt. This structure has a dual safety function: firstly, the cooperation between the slotted hole and the limiting bolt precisely limits the sliding stroke of the top holder, thereby indirectly controlling the lifting and lowering amplitude of the support block; secondly, the gap reserved between the bottom of the countersunk hole and the bolt head directly constitutes the maximum extension hard limit of the support block, fundamentally preventing the support block from dislodging due to over-adjustment.

[0017] Preferably, the outer wall of the pad body is provided with a groove.

[0018] By adopting the above solution, the groove can reduce the overall weight of the auxiliary support device, while also providing a gripping point for the operator when picking up the auxiliary support device.

[0019] This invention, by adopting the above technical solution, has significant technical advantages: Compared with the prior art, the advantage of this device lies in upgrading the height compensation process from the traditional method of relying on overhead crane hoisting and manual selection of shims to a precise leveling operation that can be completed directly online. This not only greatly reduces the difficulty and labor intensity of operation and significantly improves the efficiency of single clamping, but also helps to alleviate the scheduling pressure on overhead cranes in the workshop, providing effective support for accelerating the production cycle. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the existing technology for mounting the front plate of the firing platform; Figure 2 This is a schematic diagram of the structure of an auxiliary support device for machining the front plate of a shooting platform in use according to this embodiment; Figure 3 This is a schematic diagram of the structure of an auxiliary support device for machining the front plate of a shooting platform according to this embodiment; Figure 4 This is a split schematic diagram of an auxiliary support device for machining the front plate of a shooting platform according to this embodiment; Figure 5 This is a top view of an auxiliary support device for machining the front plate of a shooting platform according to this embodiment; Figure 6 yes Figure 5 A sectional view of AA in the middle; Figure 7 yes Figure 6 A diagram showing the state changes of an auxiliary support device used for machining the front plate of a firing platform.

[0021] The parts referred to by the numbers in the above attached figures are as follows: 1. Machine tool worktable; 2. Front plate of the injection table; 3. Pad block; 4. Screw; 5. Pressure plate; 6. Support column; 7. Pad block body; 701. Receiving groove; 702. Groove; 8. Support block; 801. First mating surface; 9. Top support; 901. Second mating surface; 902. Sliding groove; 10. Adjusting rod; 1001. Snap connector; 1002. Threaded section; 1003. Adjusting head; 11. Threaded sleeve; 1101. Anti-rotation block; 12. Through hole; 1201. Mounting groove; 13. Fastener; 14. Screw hole; 15. Limit bolt; 16. Waist-shaped hole; 17. Countersunk hole. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0023] Example An auxiliary support device for machining the front plate 2 of a firing table, according to Figure 2 , 3 As shown, it includes a pad body 7, with a groove 702 formed on the outer wall of the pad body 7. A support block 8 for lifting the front plate 2 of the firing platform and a lifting mechanism for driving the support block 8 to rise and fall are mounted on the pad body 7. Figure 4 , 6As shown in Figure 7, the supporting mechanism includes a supporting member 9 that is laterally movable relative to the support block 8. The support block 8 has a first mating surface 801 inclinedly arranged on it, and the supporting member 9 has a second mating surface 901 that fits against the first mating surface 801. The pad body 7 has a receiving groove 701 for accommodating the movement of the support block 8 and the supporting member 9. The support block 8 can be completely housed in the receiving groove 701 or partially protrude from the receiving groove 701. The inner wall of the receiving groove 701 restricts the lateral movement of the support block 8, so that the support block can only move vertically. When the supporting member 9 approaches the support block 8, the supporting member 9 can lift the support block 8 upward by the interaction between the first mating surface 801 and the second mating surface 901.

[0024] The movement of the top support 9 is controlled by the adjustment component, according to Figure 4 , 6 As shown in Figure 7, the adjusting assembly includes an adjusting rod 10 connected to the top support 9. The adjusting rod 10 partially extends beyond the pad body 7 and engages with the top support 9. The top support 9 has a sliding groove 902, and the adjusting rod 10 has a locking connector 1001 that can slide and engage with the sliding groove 902. When the adjusting rod 10 moves, the locking connector 1001 can pull or push the top support 9 to move laterally. A threaded adjusting structure is provided between the adjusting rod 10 and the pad body 7. The threaded adjusting structure includes a threaded section 1002 provided on the outer wall of the adjusting rod 10. A threaded sleeve 11 is provided on the 002, and the threaded sleeve 11 is fixedly mounted on the pad body 7. In this embodiment, a non-circular anti-rotation block 1101 is integrally formed on the threaded sleeve 11. The pad body 7 has a through hole 12 for installing the threaded sleeve 11. The opening of the through hole 12 is expanded to form a mounting groove 1201 for inserting the anti-rotation block 1101. The anti-rotation block 1101 is fixed to the mounting groove 1201 by a fastener 13. In this embodiment, the fastener 13 is a screw. The mounting groove 1201 has a screw hole 14 for connecting the fastener 13. Figure 4 As shown, in this embodiment, the end of the adjusting rod 10 extending out of the pad body 7 is provided with an adjusting head 1003 for connecting tools, which makes it easier for the operator to adjust using a wrench or other tools, thus saving more effort.

[0025] A limiting structure is provided between the support block 8 and the pad body 7 to prevent the support block 8 from over-extending. Figure 6 , 7As shown, the limiting structure includes a limiting bolt 15 that passes through the support block 8 and the top support 9 and is fixed to the pad body 7. The bottom of the receiving groove 701 is provided with a threaded hole for connecting the limiting bolt 15. The top support 9 is provided with a waist-shaped hole 16 for avoiding the limiting bolt 15 during sliding. The support block 8 is provided with a countersunk hole 17 for accommodating the large end of the limiting bolt 15. The bottom of the countersunk hole 17 and the large end of the limiting bolt 15 are provided with a matching distance greater than or equal to the lifting stroke of the support block 8.

[0026] Based on the above structure, refer to Figures 2-7 As can be seen, the method of using the auxiliary support device for machining the front plate 2 of the shooting platform in this embodiment and the clamping process of the front plate 2 of the shooting platform are as follows.

[0027] Step 1, clamping preparation: Clean the machine tool worktable 1 and place the auxiliary support device. Then use the crane to hoist the front plate 2 of the injection table to the top of the machine tool worktable 1 and slowly lower it. Then move the auxiliary support device to the four corners of the front plate 2 of the injection table and align it with the outer wall of the front plate 2 of the injection table. Then lower the front plate 2 of the injection table and install the screw 4, pressure plate 5 and support column 6 in a position that does not interfere with the machining path. The second step is to measure the flatness: Install the dial indicator on the machine tool spindle (the dial indicator is usually magnetic and can be directly attached to the spindle). Then, the spindle is lowered until the dial indicator head contacts the reference surface of the front plate 2 of the injection table. Then, through the relative movement of the spindle and the worktable, the dial indicator head passes through each measurement point on the reference surface. If the reading of the dial indicator gradually declines when passing through each point, it can be seen that the pad body 7 corresponding to these points is worn. The third step is to adjust the auxiliary support device: The operator uses a tool to connect the adjustment head 1003 on the adjustment rod 10 and slowly turns the adjustment rod 10 to drive the support block 8 to rise and lift the front plate 2 of the injection table. At the same time, the operator observes the dial indicator reading. When the pointer rotates to a height close to that of the other points, the operator stops turning the adjustment rod 10. Then, the flatness is measured again, and the operator observes whether the change in the dial indicator reading is smooth when it passes through each measurement point. If the reading still shows a downward trend, the operator adjusts it again. The fourth step is to measure and adjust the straightness of the front plate 2 of the injection table: Adjust the dial indicator to the position where it is against the outer wall of the front plate 2 of the injection table, and then move the machine tool worktable 1 along the X and Y axes of the machine tool respectively. At this time, the dial indicator reading shows a linear trend. The operator only needs to use a copper rod to tap one end of the front plate 2 of the injection table to make the dial indicator reading gradually become smooth, thereby completing the straightness adjustment (since the improvement in this solution is not related to this step, the purpose of describing it here is to improve the clamping process, so the specific adjustment process will not be described in detail). Fifth step: After completing the above adjustments, tighten the nut so that the pressure plate 5 presses against the front plate 2 of the injection stage, and then begin processing.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An auxiliary support device for machining the front plate (2) of a firing table, comprising a pad body (7), characterized in that: The pad body (7) is provided with a support block (8) for lifting the front plate (2) of the firing platform and a top holding mechanism for driving the support block (8) to rise and fall. The top holding mechanism includes a top holding member (9) that is laterally movable relative to the support block (8), a first mating surface (801) that is inclined on the support block (8), a second mating surface (901) formed on the top holding member (9) that fits with the first mating surface (801) and lifts the support block (8) upward when the top holding member (9) approaches the support block (8), and an adjustment component that drives the top holding member (9) to reciprocate.

2. The auxiliary support device for machining the front plate (2) of the injection stage according to claim 1, characterized in that: The adjustment assembly includes an adjustment rod (10) connected to the top support (9) and partially extending outside the pad body (7), and a threaded adjustment structure provided between the adjustment rod (10) and the pad body (7).

3. The auxiliary support device for machining the front plate (2) of the injection stage according to claim 2, characterized in that: The threaded adjustment structure includes a threaded section (1002) provided on the outer wall of the adjustment rod (10) and a threaded sleeve (11) that cooperates with the threaded section (1002). The threaded sleeve (11) is fixedly installed on the pad body (7).

4. The auxiliary support device for machining the front plate (2) of the injection stage according to claim 3, characterized in that: A non-circular anti-rotation block (1101) is integrally formed on the threaded sleeve (11). The pad body (7) is provided with a through hole (12) for the threaded sleeve (11) to be installed. The opening of the through hole (12) is expanded to form an installation groove (1201) for the anti-rotation block (1101) to be inserted. The anti-rotation block (1101) is fixed to the installation groove (1201) by fasteners (13).

5. The auxiliary support device for machining the front plate (2) of the firing table according to claim 2, characterized in that: The adjusting rod (10) is engaged with the top support (9). A sliding groove (902) is formed on the top support (9). A snap-fit ​​connector (1001) is formed on the adjusting rod (10) that can slide into the sliding groove (902) and pull or push the top support (9) to move.

6. The auxiliary support device for machining the front plate (2) of the injection stage according to claim 1, characterized in that: The pad body (7) is provided with a receiving groove (701) for accommodating the movement of the support block (8) and the top support (9). The support block (8) can be completely housed in the receiving groove (701) or partially protrude from the receiving groove (701).

7. The auxiliary support device for machining the front plate (2) of the injection stage according to claim 6, characterized in that: A limiting structure is provided between the support block (8) and the pad body (7) to prevent the support block (8) from over-extending.

8. The auxiliary support device for machining the front plate (2) of the injection stage according to claim 7, characterized in that: The limiting structure includes a limiting bolt (15) that passes through the support block (8) and the top support (9) and is fixed to the pad body (7). The bottom of the receiving groove (701) is provided with a threaded hole for connecting the limiting bolt (15). The top support (9) is provided with a waist-shaped hole (16) for avoiding the limiting bolt (15) during sliding. The support block (8) is provided with a countersunk hole (17) for accommodating the large end of the limiting bolt (15). The countersunk part of the countersunk hole (17) and the large end of the limiting bolt (15) are provided with a matching distance greater than or equal to the lifting stroke of the support block (8).

9. An auxiliary support device for machining the front plate (2) of a firing table according to any one of claims 1 to 8, characterized in that: A groove (702) is provided on the outer wall of the pad body (7).

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