A workbench rapid positioning device and a trolley

Abstract

The utility model discloses a kind of workbench quick positioning device and trolley, including positioning support, pedestal, rotary block and lock bar, pedestal is installed on positioning support, the circumferential groove of several continuous arrangements is equipped on the upper end of pedestal, the rotary block is equipped in the upper portion of pedestal, the handle is equipped in the one side of rotary block, the pressing plate is equipped in the upper portion of rotary block, the convex platform of several continuous arrangements is equipped in the lower end axial of rotary block;Pedestal inside is equipped with sleeve, sleeve upper end is connected with rotary block, lock bar is fixedly connected in the inside of sleeve, the lower end of lock bar is connected with T type sliding block by passing through pedestal and positioning support, T type sliding block is installed in the T type sliding slot of workbench surface.This utility model is by rotating handle, using the matching surface of rotary block and pedestal, drive lock bar and T type sliding block to rise, reduce the gap between T type sliding block and positioning support, realized the quick clamping of quick positioning device on workbench surface, without repeatedly screwing bolt, improve the efficiency of quick positioning device dismounting, adjustment.

Description

Technical Field

[0001] This utility model belongs to the field of positioning devices, and specifically relates to a rapid positioning device for a workbench and a trolley. Background Technology

[0002] In the automotive manufacturing industry, exterior body panels (such as side panels, door panels, and fenders) are key components of the vehicle body, and their molding quality directly affects the overall appearance and structural strength of the vehicle. During the pre-molding production preparation stage, blanks are typically neatly stacked on dedicated racks for efficient transfer between different production lines using forklifts and other handling equipment. In this process, the positional accuracy of the blanks is crucial for ensuring subsequent processing quality, reducing scrap rates, and improving production efficiency. Therefore, the accuracy and stability of the blanks' positioning are paramount when they are transferred to the workbench and placed on the worktable.

[0003] However, existing positioning methods in the industry have significant limitations. One commonly used method involves using locating pins fixed to the worktable and pre-designed pin holes on the material rack for guiding positioning. While this method is simple in principle and intuitive to operate, it requires a strict one-to-one correspondence between the locating pins on the worktable and the pin holes on the material rack. Any dimensional deviation or misalignment can lead to positioning failure, thus affecting the normal operation of the production line. Furthermore, with the rapid development of the automotive manufacturing industry towards flexibility and intelligence, stamping workshops need to frequently change material racks of various sizes to adapt to the needs of different car models or production batches. The existing fixed locating pin design clearly cannot meet this changing demand; its adaptability is weak, and it is difficult to achieve precise matching with material racks of different sizes, thus severely restricting the flexibility and efficiency of the production line.

[0004] Existing positioning devices also include a T-shaped slider and bolt positioning method. This positioning method adjusts the position of the T-shaped slider and fixes it with bolts. Although this positioning method can achieve positioning of material racks of different specifications, it has obvious efficiency problems. Specifically, because it requires turning the bolts many times to complete the disassembly and adjustment of the positioning device, the operation process is cumbersome and time-consuming, which seriously affects the overall efficiency of the production line, especially in production scenarios where material rack specifications need to be frequently changed. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a workbench quick positioning device and trolley to solve the problems of frequent disassembly and adjustment, low efficiency, and inability to match and position material racks of different sizes in existing positioning devices.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A quick positioning device for a workbench includes a positioning bracket, a base, a rotating block, and a locking rod. The base is mounted on the positioning bracket. The upper end of the base has several continuously arranged grooves. The rotating block is located on the upper part of the base. A handle is located on one side of the rotating block. A pressure plate is located on the upper part of the rotating block. The lower end of the rotating block has several continuously arranged bosses arranged axially, and the bosses match the grooves. A sleeve is located inside the base. The upper end of the sleeve is connected to the rotating block. A locking rod is fixedly connected inside the sleeve. The lower end of the locking rod passes through the base and the positioning bracket and is connected to a T-shaped slider. The T-shaped slider is installed in a T-shaped groove on the workbench surface.

[0008] Furthermore, the positioning bracket is provided with a guide positioning ramp on the side near the material rack.

[0009] Furthermore, the locking rod is a screw rod, which is threadedly connected to the sleeve. The lower end of the locking rod is threadedly connected to the T-shaped slider. The upper part of the rotating block is provided with a countersunk hole, and the upper end of the sleeve is provided with a flange. The sleeve is placed inside the countersunk hole. The middle part of the pressure plate is provided with a through hole, the diameter of which is smaller than the diameter of the flange. The upper part of the screw rod is provided with several locking nuts for locking the locking rod and the sleeve and preventing loosening.

[0010] Furthermore, the lower part of the base is provided with an installation groove, and the two sides of the installation groove are provided with first slots; the lower part of the sleeve is provided with second slots on both sides, and the installation groove is provided with an anti-rotation retaining ring, the outer side of the anti-rotation retaining ring is provided with a first protrusion that engages with the first slot, and the inner side of the anti-rotation retaining ring is provided with a second protrusion that engages with the second slot.

[0011] Furthermore, the base has a stepped hole inside, and a spring is provided at the upper part of the stepped hole, with the upper end of the spring abutting against the lower surface of the rotating block.

[0012] A trolley includes a trolley body, on which a worktable is provided. The worktable is provided with a plurality of T-shaped grooves arranged in a crisscross pattern. The aforementioned worktable quick positioning device is installed in the T-shaped grooves, and the material rack is placed in the positioning space enclosed by the quick positioning device.

[0013] The beneficial effects of this utility model are:

[0014] 1) By rotating the handle, the locking rod and T-shaped slider are driven to rise by the mating surface between the rotating block and the base, reducing the gap between the T-shaped slider and the positioning bracket, and firmly locking it on the worktable. This achieves quick locking and fixing of the quick positioning device without the need to repeatedly tighten the bolts. The handle can be rotated in the opposite direction to unlock it, which improves the efficiency of disassembly, assembly and adjustment of the quick positioning device.

[0015] 2) A guide positioning ramp is installed on the side near the material rack. When the material rack is placed on the workbench, it automatically slides onto the workbench along the guide positioning ramp and completes the positioning, which reduces the difficulty of placing the material rack.

[0016] 3) The locking rod adopts a screw structure, which realizes the adjustment of the gap between the T-shaped slider and the positioning bracket, ensuring the locking effect of the quick positioning device, adapting to T-shaped grooves of different depths, and enhancing the flexibility of the quick positioning device.

[0017] 4) The base and sleeve are fixed by using anti-rotation retaining rings, which prevents the base and sleeve from rotating relative to each other when the quick positioning device is locked.

[0018] 5) A spring is installed inside the base. When clamped, the spring pushes the rotating block upward, increasing the clamping force between the T-shaped slider and the positioning bracket, thus ensuring the locking effect of the quick positioning device on the worktable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a rapid positioning device for a workbench according to this utility model.

[0020] Figure 2 This is a schematic diagram of the positioning bracket structure.

[0021] Figure 3 This is an exploded view of a rapid positioning device.

[0022] Figure 4 This is a schematic diagram of the rotating block.

[0023] Figure 5 This is a bottom view of the base.

[0024] Figure 6 This is a cross-sectional view of a workbench quick positioning device according to this utility model.

[0025] Figure 7 This is a schematic diagram of the trolley structure.

[0026] Figure 8 This is a diagram showing the usage status of the vehicle.

[0027] In the diagram, 1. Positioning bracket; 11. Guide positioning inclined plate; 2. Base; 21. Groove; 22. Mounting groove; 23. First slot; 24. Spring; 3. Rotating block; 31. Boss; 32. Handle; 33. Countersunk hole; 4. Sleeve; 41. Second slot; 42. Flanged edge; 5. Pressure plate; 51. Through hole; 6. Locking rod; 61. Locking nut; 62. T-shaped slider; 7. Anti-rotation retaining ring; 71. First protrusion; 72. Second protrusion; 8. Trolley body; 81. Worktable surface; 82. T-shaped slide; 9. Material rack. Detailed Implementation

[0028] The following will be combined with the appendix Figures 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not 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 limitations on this utility model.

[0030] like Figure 1 As shown, a quick positioning device for a workbench includes a positioning bracket 1, a base 2, a rotating block 3, and a locking rod 6. The base 2 is mounted on the positioning bracket 1, as shown. Figure 3 As shown, the upper end of the base 2 is provided with several continuously arranged grooves 21. A rotating block 3 is provided on the upper part of the base 2. A handle 32 is provided on one side of the rotating block 3. A pressure plate 5 is provided on the upper part of the rotating block 3. Figure 4 As shown, the lower end of the rotating block 3 is provided with several continuously arranged bosses 31, and the bosses 31 match the grooves 21; as Figure 6 As shown, the base 2 is provided with a sleeve 4 inside. The upper end of the sleeve 4 is connected to the rotating block 3. A locking rod 6 is fixedly connected inside the sleeve 4. The lower end of the locking rod 6 passes through the base 2 and the positioning bracket 1 and is connected to a T-shaped slider 62. The T-shaped slider 62 is installed in the T-shaped groove 82 of the worktable 81.

[0031] Initial relaxation state: The top surface of the boss 31 of the rotating block 3 is in contact with the bottom surface of the groove 21 of the base 2. At this time, there is a large gap between the T-shaped slider 62 and the positioning bracket 1 to ensure that the quick positioning device can slide on the worktable 81.

[0032] Clamping state: When the handle 32 is turned, the rotating block 3 rotates relative to the base 2. The boss 31 of the rotating block 3 slides along the groove 21 of the base 2 until the top surface of the boss 31 of the rotating block is in contact with the top surface of the groove 21 of the base 2. At this time, it is equivalent to the rotating block 3 being displaced along the axial direction of the base 2. The rotating block 3 drives the sleeve 4, the locking rod 6 and the T-shaped slider 62 to rise, reducing the gap between the T-shaped slider 62 and the positioning bracket 1. The T-shaped slider 62 and the positioning bracket 1 are clamped in the T-shaped groove 82 of the worktable, realizing the quick locking and fixing of the quick positioning device. There is no need to repeatedly tighten the bolts. The handle 32 can be rotated in the opposite direction to unlock, which improves the efficiency of the quick positioning device for disassembly, assembly and adjustment.

[0033] like Figure 2 As shown, the positioning bracket 1 is provided with a guide positioning ramp 11 on the side near the material rack 9. When the operator uses a forklift to place the material rack 9 on the workbench 81, the periphery of the material rack 9 automatically slides onto the workbench along the guide positioning ramp 11 and completes the positioning, reducing the difficulty of placing the material rack 9.

[0034] like Figure 3 , Figure 6 As shown, the locking rod 6 is a screw rod, which is threadedly connected to the sleeve 4. The lower end of the locking rod 6 is threadedly connected to the T-shaped slider 62. The upper part of the rotating block 3 is provided with a countersunk hole 33, and the upper end of the sleeve 4 is provided with a flange 42. The sleeve 4 is placed inside the countersunk hole 33. The middle part of the pressure plate 5 is provided with a through hole 51, the diameter of which is smaller than the diameter of the flange 42. The upper part of the screw rod is provided with several locking nuts 61, which are used to lock the locking rod 6 and the sleeve 4 and prevent loosening, thus avoiding loosening and rotation between the sleeve 4 and the locking rod 6. The screw rod realizes the adjustment of the gap between the T-shaped slider 62 and the positioning bracket 1, ensuring the locking effect of the quick positioning device.

[0035] like Figure 5 As shown, the lower part of the base 2 is provided with a mounting groove 22, and the two sides of the mounting groove 22 are provided with first slots 23; as Figure 3 As shown, the lower part of the sleeve 4 is provided with second slots 41 on both sides, and the mounting groove 22 is provided with anti-rotation retaining ring 7. The outer side of the anti-rotation retaining ring 7 is provided with a first protrusion 71 that engages with the first slot 23, and the inner side of the anti-rotation retaining ring 7 is provided with a second protrusion 72 that engages with the second slot 41. The anti-rotation retaining ring 7 prevents the base 2 and the sleeve 4 from rotating relative to each other when the quick positioning device is locked.

[0036] like Figure 6 As shown, the base 2 has a stepped hole inside, and a spring 24 is provided at the upper part of the stepped hole. The upper end of the spring 24 abuts against the lower surface of the rotating block 3. In the clamping state, the spring 24 pushes the rotating block 3 upward, which increases the clamping force between the T-shaped slider 62 and the positioning bracket 1, and ensures the locking effect of the quick positioning device on the worktable 81.

[0037] like Figure 7 , Figure 8 As shown, this utility model also discloses a trolley, including a trolley body 8, a worktable 81 on the trolley body 8, a plurality of T-shaped slides 82 arranged in a crisscross pattern on the worktable 81, the aforementioned worktable quick positioning device is installed in the T-shaped slides 82, and the material rack 9 is placed in the positioning space enclosed by the quick positioning device.

[0038] The above content is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the utility model, they should all fall within the protection scope of this utility model.

Claims

1. A rapid positioning device for a workbench, comprising a positioning bracket, a base, a rotating block, and a locking rod, characterized in that, The base is mounted on the positioning bracket. The upper end of the base has several continuously arranged grooves. The upper part of the base has a rotating block with a handle on one side. The upper part of the rotating block has a pressure plate. The lower end of the rotating block has several continuously arranged bosses that match the grooves. The base has a sleeve inside. The upper end of the sleeve is connected to the rotating block. A locking rod is fixedly connected inside the sleeve. The lower end of the locking rod passes through the base and the positioning bracket and is connected to a T-shaped slider. The T-shaped slider is installed in a T-shaped groove on the worktable.

2. The rapid positioning device for a workbench according to claim 1, characterized in that, The positioning bracket is equipped with a guide positioning ramp on the side near the material rack.

3. The rapid positioning device for a workbench according to claim 1, characterized in that, The locking rod is a screw rod, which is threadedly connected to the sleeve. The lower end of the locking rod is threadedly connected to the T-shaped slider. The upper part of the rotating block is provided with a countersunk hole, and the upper end of the sleeve is provided with a flange. The sleeve is placed inside the countersunk hole. The middle part of the pressure plate is provided with a through hole, the diameter of which is smaller than the diameter of the flange. The upper part of the screw rod is provided with several locking nuts for locking the locking rod and the sleeve and preventing loosening.

4. The rapid positioning device for a workbench according to claim 1, characterized in that, The base has a mounting groove at its lower part, and first slots are provided on both sides of the mounting groove; the sleeve has second slots on both sides at its lower part, and an anti-rotation retaining ring is provided in the mounting groove. The outer side of the anti-rotation retaining ring has a first protrusion that engages with the first slot, and the inner side of the anti-rotation retaining ring has a second protrusion that engages with the second slot.

5. A rapid positioning device for a workbench according to claim 3, characterized in that, The base has a stepped hole inside, and a spring is installed at the top of the stepped hole. The upper end of the spring abuts against the lower surface of the rotating block.

6. A trolley, characterized in that, The device includes a trolley body, on which a worktable is provided. The worktable is provided with a plurality of T-shaped grooves arranged in a crisscross pattern. The T-shaped grooves are equipped with a worktable quick positioning device as described in any one of claims 1-5. The material rack is placed in the positioning space enclosed by the positioning device.

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