Concrete pump truck boom machining device

Abstract

The utility model belongs to the technical field of machining, disclose a kind of concrete pump truck jib machining device, including the bed platform component for supporting fixed on machine tool, still include the base component for being used for connecting support installed on bed platform component, base component is provided with two, respectively install in bed platform component both ends, base component is provided with the positioning component for limiting fixed and the clamping component for being used for pressure fixed, one of base component and bed platform component between place is used for adjusting the pad of height;Positioning component includes front positioning mechanism and rear positioning mechanism, respectively set on two base seat;Clamping component includes the side pressure mechanism for laterally pressure tight pump truck jib and the down pressure mechanism for being used for down pressure pump truck jib fixed.The utility model of a kind of concrete pump truck jib machining device, by the base component of two ends independently adjustable cooperation pad, the quick positioning fixed of different length jib is realized, adapt to the processing demand of multiple specifications pump truck jib.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and in particular relates to a machining device for a concrete pump truck boom. Background Technology

[0002] Since the first hydraulically driven boom concrete pump truck was introduced in the 1960s, this equipment has undergone iterative upgrades from three-section to seven-section booms. Modern booms utilize a composite structure of high-strength boron steel (such as BS700MC) and aluminum alloy, with a yield strength exceeding 700MPa. While ensuring lightweight construction, they also boast a fatigue life exceeding 200,000 cycles. Industry data from 2024 shows that booms with five or more sections accounted for 73% of all models, with the maximum placing height exceeding 86 meters, breaking the record for ultra-high-rise concrete pumping. As a core piece of equipment in modern construction, the boom system of the concrete pump truck undertakes the crucial task of concrete delivery. The machining precision of the concrete pump truck boom directly affects the equipment's durability, construction safety, and delivery efficiency.

[0003] Comparing with Chinese Patent CN216029447U, a positioning and clamping structure for machining concrete pump truck booms is disclosed, including a machining mechanism and a pre-machining mechanism. The machining mechanism includes a machine tool and a machine tool positioning part mounted on the machine tool, with the positioning part parallel to the machine tool's centerline. The pre-machining mechanism includes a pre-machining worktable, a pre-machining positioning part, a clamping part, and a tightening part. The pre-machining worktable is the same size as the machine tool. The pre-machining positioning part is positioned on the pre-machining worktable corresponding to the machine tool positioning part and is the same size as the positioning part. The clamping part is positioned on the pre-machining worktable, and its machining surface coincides with the reference surface of the pre-machining positioning part so that the clamping part is parallel to the centerline of the pre-machining worktable. The tightening part is located on the side of the clamping part away from the pre-machining positioning part. This allows for rapid positioning and clamping of the concrete pump truck boom.

[0004] However, the aforementioned patent uses an integrated structure, which cannot be adjusted according to booms of different lengths, thus reducing applicability and increasing the difficulty and cost of positioning. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this utility model is to provide a machining device for the boom of a concrete pump truck to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A concrete pump truck boom machining device includes a machine tool with a bed assembly for support and fixation, and a base assembly for connecting and supporting the support, mounted on the bed assembly. Two base assemblies are provided, respectively installed at both ends of the bed assembly. Each base assembly has a positioning component for limiting and fixing, and a clamping component for clamping and fixing. A height adjustment pad is placed between one of the base assemblies and the bed assembly. The base assembly includes a base connecting plate with four first through slots evenly distributed at its four corners, and a base seat is provided on the base connecting plate. The positioning component includes a front positioning mechanism and a rear positioning mechanism, respectively mounted on the two base seats. The clamping component includes a side-pressing mechanism for laterally pressing the pump truck boom and a downward-pressing mechanism for pressing down and fixing the pump truck boom.

[0008] Furthermore: the bed assembly includes a worktable, on which several limiting grooves are evenly distributed, and several limiting bolts are provided in the limiting grooves, with limiting nuts installed on the limiting bolts.

[0009] Furthermore, both the limiting groove and the limiting bolt adopt a T-shaped structure.

[0010] Further: the front positioning mechanism includes a front base plate fixed to the top surface of the base, a front side plate is provided on one side of the front base plate, and a front positioning plate is provided at the outer end of the front base plate; the rear positioning mechanism includes a rear base plate fixed to the top surface of the base, and a rear side plate is provided on one side of the rear base plate.

[0011] Furthermore: the front base plate and the rear base plate are the same size, and the front side plate, the rear side plate, and the front positioning plate are the same size.

[0012] Furthermore: the side pressing mechanism includes a telescopic cylinder fixedly installed on the side of the base, and a side pressing plate is installed on the telescopic end of the telescopic cylinder; the downward pressing mechanism includes two downward pressing screws symmetrically arranged on the base, a downward pressing plate is installed between the downward pressing screws, and a downward pressing nut is installed on the downward pressing screw.

[0013] Furthermore, the lower pressure plate is symmetrically provided with two second through slots at both ends.

[0014] Furthermore, both the first through groove and the second through groove adopt a U-shaped groove.

[0015] Compared with existing technologies, the beneficial effects are:

[0016] 1. By using an independently adjustable base assembly at both ends in conjunction with pads, it enables rapid positioning and fixing of booms of different lengths, adapting to the processing needs of various specifications of pump truck booms; it solves the problems of inaccurate positioning and unstable clamping caused by differences in workpiece size in traditional methods, and is suitable for batch processing scenarios, improving production efficiency while ensuring processing quality;

[0017] 2. The front / rear positioning mechanism (front positioning plate, front / rear side plates, and bottom plate) is used to achieve three-dimensional positioning of boom length, width, and height, ensuring uniform processing benchmarks and reducing clamping errors; standardized components (such as front / rear bottom plates of the same specification and side plates of uniform size) reduce the types of parts and facilitate maintenance and replacement.

[0018] 3. The linkage clamping of the side pressure mechanism (telescopic cylinder + side pressure plate) and the lower pressure mechanism (lower pressure screw + lower pressure plate) effectively suppresses processing vibration, avoids workpiece displacement, and improves processing accuracy; the split clamping design (lateral pneumatic clamping + vertical mechanical pressing) takes into account both dynamic response and static rigidity, ensuring clamping reliability under complex working conditions.

[0019] 4. High-precision machining of large booms can be achieved by modifying general-purpose machine tools (adding special positioning / clamping components), reducing the investment cost of special equipment; the reusable pad adjustment mechanism reduces the need for customized chemical equipment, further saving production costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a concrete pump truck boom machining device described in this utility model;

[0021] Figure 2 This is a schematic diagram of the bed assembly of a concrete pump truck boom machining device according to the present invention;

[0022] Figure 3 This is a schematic diagram of the tail end base assembly of a concrete pump truck boom machining device described in this utility model;

[0023] Figure 4 This is a schematic diagram of the front end base assembly of a concrete pump truck boom machining device described in this utility model;

[0024] Figure 5 This is a schematic diagram of the lower pressure plate of a concrete pump truck boom machining device described in this utility model.

[0025] In the attached diagram, the following are the reference numerals: 101, worktable; 102, limiting groove; 103, limiting bolt; 104, limiting nut; 201, base connecting plate; 202, first through groove; 203, base; 301, rear base plate; 302, rear side plate; 303, front base plate; 304, front side plate; 305, front positioning plate; 401, telescopic cylinder; 402, side pressure plate; 403, downward pressure screw; 404, downward pressure plate; 405, second through groove; 406, downward pressure nut; 5, pad block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 A concrete pump truck boom machining device includes a bed assembly for support and fixation on a machine tool, and a base assembly for connecting and supporting installed on the bed assembly. Two base assemblies are provided and installed at both ends of the bed assembly respectively. The base assembly is provided with a positioning component for limiting and fixing and a clamping component for pressing and fixing. A pad 5 for adjusting the height is placed between one of the base assemblies and the bed assembly.

[0028] In this embodiment: the bed assembly includes a workbench 101, on which several limiting grooves 102 are evenly distributed, and several limiting bolts 103 are provided in the limiting grooves 102, with limiting nuts 104 installed on the limiting bolts 103; both the limiting grooves 102 and the limiting bolts 103 adopt a T-shaped structure; during installation, the two base assemblies are first placed at both ends of the workbench 101 according to the length of the pump truck boom, and then the limiting bolts 103 are slid along the limiting grooves 102 through the first through groove 202, and the limiting nuts 104 are tightened to press and fix the base connecting plate 201 on the workbench 101;

[0029] In this embodiment: the base assembly includes a base connecting plate 201, four first through slots 202 are evenly distributed at the four corners of the base connecting plate 201, and a base 203 is provided on the base connecting plate 201; the first through slots 202 are U-shaped slots; the limiting bolts 103 slide through the first through slots 202 along the limiting slots 102 and tighten the limiting nuts 104 to press and fix the base connecting plate 201 on the workbench 101, and the base 203 fixes and supports the positioning assembly and the clamping assembly;

[0030] In this embodiment: the positioning components include a front positioning mechanism and a rear positioning mechanism, which are respectively set on two bases 203; the front positioning mechanism includes a front base plate 303 fixed to the top surface of the base 203, a front side plate 304 is provided on one side of the front base plate 303, and a front positioning plate 305 is provided at the outer end of the front base plate 303; the rear positioning mechanism includes a rear base plate 301 fixed to the top surface of the base 203, and a rear side plate 302 is provided on one side of the rear base plate 301; the front base plate 303 and the rear base plate 301 are the same size, and the front side plate 304, the rear side plate 302 and the front positioning plate 305 are the same size; when positioning and clamping, the pump truck boom is hoisted onto the base 203, and the front base plate 303 and the rear base plate 301 support the positioning height direction, and the front end of the pump truck boom is pressed against the positioning surface of the front positioning plate 305 in the positioning length direction, and the pump truck boom is pressed against the positioning surfaces of the front side plate 304 and the rear side plate 302 in the positioning width direction;

[0031] In this embodiment: the clamping assembly includes a side-pressing mechanism for laterally pressing the pump truck boom and a downward-pressing mechanism for fixing the pump truck boom; the side-pressing mechanism includes a telescopic cylinder 401 fixedly installed on the side of the base 203, and a side-pressing plate 402 is installed on the telescopic end of the telescopic cylinder 401; the downward-pressing mechanism includes two downward-pressing screws 403 symmetrically arranged on the base 203, a downward-pressing plate 404 installed between the downward-pressing screws 403, and a downward-pressing nut 406 installed on the downward-pressing screws 403; the two ends of the downward-pressing plate 404 are symmetrical. Two second through slots 405 are provided, and the second through slots 405 are U-shaped slots. The telescopic cylinders 401 on the two bases 203 extend and push the side pressure plates 402 to press the pump truck boom onto the positioning surfaces of the front side plate 304 and the rear side plate 302 from the side. Then, the lower pressure plates 404 are inserted through the second through slots 405 between the lower pressure screws 403 on each base 203, and the lower pressure nuts 406 are tightened to push the lower pressure plates 404 to press and fix the pump truck boom onto the front base plate 303 and the rear base plate 301.

[0032] Working principle: During installation, first place the two base components at both ends of the workbench 101 according to the length of the pump truck boom. Then slide the limiting bolt 103 at the front end through the first through groove 202 along the limiting groove 102 and tighten the limiting nut 104 to press and fix the base connecting plate 201 on the workbench 101. Then place an appropriate pad 5 under the base connecting plate 201 at the rear end, adjust the positioning surfaces, and press and fix the base connecting plate 201 on the workbench 101 according to the above steps.

[0033] During positioning and clamping, the pump truck boom is hoisted onto the base 203. The front base plate 303 and the rear base plate 301 support the boom in the positioning height direction, and the front end of the boom is pressed against the positioning surface of the front positioning plate 305 in the positioning length direction. Then, the telescopic cylinders 401 on the two bases 203 extend to push the side pressure plates 402 to press the boom onto the positioning surfaces of the front side plate 304 and the rear side plate 302 from the side in the positioning width direction. Then, the lower pressure plate 404 is inserted into the lower pressure screws 403 on each base 203 through the second through slot 405, and the lower pressure nut 406 is tightened to push the lower pressure plate 404 to press and fix the boom onto the front base plate 303 and the rear base plate 301.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machining device for a concrete pump truck boom, comprising a machine tool bed assembly for supporting and fixing, characterized in that: It also includes a base assembly for connection and support installed on the bed frame assembly. There are two base assemblies, which are respectively installed at both ends of the bed frame assembly. The base assembly is provided with a positioning component for limiting and fixing and a clamping component for pressing and fixing. A pad (5) for adjusting the height is placed between one of the base assemblies and the bed frame assembly. The base assembly includes a base connecting plate (201), and four first through slots (202) are evenly distributed at the four corners of the base connecting plate (201). A base pedestal (203) is provided on the base connecting plate (201). The positioning component includes a front positioning mechanism and a rear positioning mechanism, which are respectively disposed on the two bases (203); The clamping assembly includes a side-pressing mechanism for laterally pressing the pump truck boom and a downward-pressing mechanism for pressing down and fixing the pump truck boom.

2. The concrete pump truck boom machining device according to claim 1, characterized in that: The bed assembly includes a worktable (101), on which a plurality of limiting grooves (102) are evenly distributed, and a plurality of limiting bolts (103) are provided in the limiting grooves (102), and limiting nuts (104) are installed on the limiting bolts (103).

3. The concrete pump truck boom machining device according to claim 2, characterized in that: Both the limiting groove (102) and the limiting bolt (103) adopt a T-shaped structure.

4. The concrete pump truck boom machining device according to claim 1, characterized in that: The front positioning mechanism includes a front base plate (303) fixed to the top surface of the base (203), a front side plate (304) is provided on one side of the front base plate (303), and a front positioning plate (305) is provided at the outer end of the front base plate (303); the rear positioning mechanism includes a rear base plate (301) fixed to the top surface of the base (203), and a rear side plate (302) is provided on one side of the rear base plate (301).

5. The concrete pump truck boom machining device according to claim 4, characterized in that: The front base plate (303) and the rear base plate (301) are the same size, and the front side plate (304), the rear side plate (302), and the front positioning plate (305) are the same size.

6. The concrete pump truck boom machining device according to claim 1, characterized in that: The side-pressing mechanism includes a telescopic cylinder (401) fixedly installed on the side of the base (203), and a side-pressing plate (402) is installed on the telescopic end of the telescopic cylinder (401); the downward-pressing mechanism includes two downward-pressing screws (403) symmetrically arranged on the base (203), a downward-pressing plate (404) is installed between the downward-pressing screws (403), and a downward-pressing nut (406) is installed on the downward-pressing screws (403).

7. The concrete pump truck boom machining device according to claim 6, characterized in that: The lower pressure plate (404) has two second through slots (405) symmetrically arranged at both ends.

8. A concrete pump truck boom machining device according to claim 7, characterized in that: Both the first through groove (202) and the second through groove (405) are U-shaped grooves.

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