Clamping device for drilling of top cross beam of new energy bus

Abstract

The utility model discloses a clamping device for drilling a top cross beam of a new energy bus, which belongs to the technical field of mechanical equipment clamps and comprises a clamp fixing base, a lever air cylinder is arranged at one end of the lower portion of the clamp fixing base, an air cylinder lengthening plate is arranged at the end of the lever air cylinder and is connected with an air cylinder connecting rod, and the air cylinder connecting rod is connected with the lever air cylinder. The cylinder connecting rod is connected with the movable jaw; the lever air cylinder is communicated with one end of an air inlet pipe, an exhaust pipe is arranged on the side portion of the air inlet pipe, one end of the exhaust pipe is communicated with the lever air cylinder, and the other end of the air inlet pipe and the other end of the exhaust pipe are communicated with a pneumatic foot switch. The top cross beam can be rapidly clamped, operation is convenient, and the drilling efficiency is improved. And the clamping device is also suitable for clamping top cross beams with different sizes and is simple in structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical equipment clamps, and in particular relates to a clamping device used for drilling holes in a roof crossbeam of a new energy passenger car. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] In the process of drilling the wire holes of the top cross beam of new energy buses, especially in the design process of a new model, design changes or temporary changes in the position of the wire holes often occur, resulting in the need to increase or change the number of wire holes in the top cross beam. The wire holes of the top cross beam are usually drilled with a vertical drilling machine, and a machine vise is installed on the vertical drilling machine as a clamp for the workpiece. However, the work efficiency of the machine vise is low, and the time to tighten and loosen the workpiece exceeds the drilling time, which greatly reduces the work efficiency. The more wire holes there are, the lower the work efficiency.

[0004] The inventor of the utility model found that the existing new energy bus top cross beam wire holes are drilled using a vertical drilling machine in conjunction with a machine vise. Usually two construction workers are required to operate: one to manually clamp and loosen the workpiece with a machine vise, and one to drill. Generally, there are two top cross beam wire holes, and special models also have 3-4. The staff needs to manually clamp and loosen the machine vise many times, which wastes time, seriously affects the work rhythm and construction efficiency of bus components, and leads to increased production costs.

[0005] After searching, patent No. CN110788429A discloses a pneumatic wire cutting clamp, which is characterized in that it includes a base, a fixed clamp seat and a movable clamp seat respectively arranged on both sides of the top of the base, a connecting clamp seat is connected to the side wall of the fixed clamp seat close to the movable clamp seat, a mounting groove matching one side of the part is provided on the side of the connecting clamp seat close to the movable clamp seat, the movable clamp seat slides horizontally on the upper surface of the base, a horizontally arranged sliding hole is provided in the movable clamp seat, and a pressure rod coaxially arranged with the sliding hole is slidably connected in the sliding hole.

[0006] Although the patent has a cylinder, the operability is poor, which leads to low drilling efficiency of parts. In addition, the movable clamp seat in the patent needs a large stroke to slide toward the parts, and the sliding distance of the pressure rod is limited. Therefore, when pressing parts of different sizes, the position of the movable clamp seat needs to be changed, which leads to a long base, complex structure, and extremely inconvenient use. Utility Model Content

[0007] In view of the above problems, the utility model provides a clamping device for drilling holes in the top cross beam of a new energy bus, which can quickly clamp the top cross beam, is easy to operate, and improves the drilling efficiency. It can also be used for clamping top cross beams of different sizes, and has a simple structure.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A clamping device for drilling holes in a roof crossbeam of a new energy bus comprises a clamp fixing base, a lever cylinder is arranged at one end of the lower part of the clamp fixing base, a cylinder extension plate is arranged at the end of the lever cylinder, the cylinder extension plate is connected to the cylinder connecting rod, and the cylinder connecting rod is connected to a movable jaw; the lever cylinder is connected to one end of an intake pipe, an exhaust pipe is arranged on the side of the intake pipe, one end of the exhaust pipe is connected to the lever cylinder, and the other ends of the intake pipe and the exhaust pipe are connected to a pneumatic foot switch.

[0010] Furthermore, one end of the cylinder extension plate is fixedly connected to the end of the lever cylinder, and the other end of the cylinder extension plate is provided with a connecting hole.

[0011] Furthermore, connecting holes are set at both ends of the cylinder connecting rod, and the other end of the cylinder extension plate is connected to one end of the cylinder connecting rod through a second connecting shaft. The second connecting shaft passes through the connecting holes of the cylinder extension plate and the cylinder connecting rod in sequence, and a spring locking plate is set on the second connecting shaft.

[0012] Furthermore, a connecting hole is provided on the movable jaw, and the movable jaw and the other end of the cylinder connecting rod are connected through a first connecting shaft, which passes through the connecting holes of the movable jaw and the cylinder connecting rod in sequence, and a spring locking plate is provided on the first connecting shaft.

[0013] Furthermore, a movable jaw positioning piece is arranged at the lower part of the movable jaw, and the movable jaw positioning piece is arranged at one end of the upper part of the clamp fixing base.

[0014] Furthermore, a positioning jaw is provided at the other end of the upper portion of the clamp fixing base, and a positioning jaw reinforcing steel plate is provided at one end of the positioning jaw.

[0015] Furthermore, the positioning jaw is fixedly connected to the fixture fixed base, and the movable jaw positioning piece is fixedly connected to the positioning jaw.

[0016] Furthermore, a chip guide groove is provided at the other end of the lower part of the clamp fixing base, and the chip guide groove is fixedly connected to the clamp fixing base.

[0017] Furthermore, a chip guide hole is provided at a middle position on the upper part of the fixture fixing base.

[0018] Furthermore, the pneumatic foot switch is connected to an air source air pipe, and the air source air pipe is located between an air inlet pipe and an air exhaust pipe.

[0019] Compared with the prior art, the utility model has the following advantages and positive effects:

[0020] 1. The utility model provides a lever cylinder, and a cylinder extension plate is provided at the end of the lever cylinder, and the cylinder extension plate is connected to the cylinder connecting rod. Through the cooperation of the lever cylinder, the cylinder extension plate and the cylinder connecting rod, the force transmission direction is changed, so that the movable jaw can reciprocate to clamp or release the workpiece, shortening the movable jaw stroke, and can be suitable for clamping workpieces of different sizes.

[0021] 2. This utility model is suitable for all new energy passenger cars' top cross beam wire hole drilling work. When working, you only need to step on the pneumatic foot switch to tighten and loosen the workpiece, so as to achieve fast clamping, loosening and positioning of the workpiece, which effectively improves the work efficiency. The more holes are drilled in the workpiece, the higher the efficiency.

[0022] 3. The utility model only requires one person to operate during the construction of the top cross beam wire hole, and there is no need to use a traditional machine vise to manually clamp the workpiece, which can save one construction worker and effectively save labor costs.

[0023] 4. The utility model has a reasonable and simple structural design and is easy to use, which effectively reduces the difficulty of work and is not affected by the construction skills of employees. It ensures that construction personnel can learn and master it immediately, and improves the welding quality of nut accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0025] Figure 1 It is an isometric view of the fixture fixing base and the chip guide groove of the clamping device of the utility model;

[0026] Figure 2 It is an isometric structural diagram of the clamping device of the utility model;

[0027] Figure 3 This is a structural schematic diagram of the clamp of the clamping device of the utility model in a normally closed state;

[0028] Figure 4 It is a structural schematic diagram of the clamping device of the utility model in an open state;

[0029] Figure 5 It is a structural schematic diagram of the clamping device of the utility model in the workpiece placing state;

[0030] Figure 6 It is a structural schematic diagram of a workpiece drilling state of the clamping device of the utility model;

[0031] In the figure: 01, fixture fixing base; 02, chip guide groove; 03, lever cylinder; 04, positioning jaw reinforcement steel plate; 05, positioning jaw; 06, movable jaw; 07, movable jaw positioning piece; 08, first connecting shaft; 09, spring lock plate; 10, cylinder connecting rod; 11, cylinder extension plate; 12, air source air pipe; 13, air inlet pipe; 14, exhaust pipe; 15, pneumatic foot switch; 16, workpiece; 17, second connecting shaft DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] The following is a detailed description of the utility model with reference to the accompanying drawings. The present embodiment discloses a clamping device for drilling holes in the top crossbeam of a new energy bus. Figure 2 As shown, it includes a clamp fixing base 01, a lever cylinder 03 is arranged at one end of the lower part of the clamp fixing base 01, a cylinder extension plate 11 is arranged at the end of the lever cylinder 03, the cylinder extension plate 11 is connected to the cylinder connecting rod 10, and the cylinder connecting rod 10 is connected to the movable jaw 06; the lever cylinder 03 is connected to one end of the air intake pipe 13, an exhaust pipe 14 is arranged on the side of the air intake pipe 13, one end of the exhaust pipe 14 is connected to the lever cylinder 03, and the other ends of the air intake pipe 13 and the exhaust pipe 14 are connected to the pneumatic foot switch 15.

[0034] like Figure 1 As shown, the clamp fixed base 01 is provided with a cylinder fixing hole, a chip guide groove 02 fixing hole, a cylinder air inlet hole, a reserved opening for the exhaust pipe 14, a positioning jaw fixing hole, a movable jaw positioning fixing hole and a chip removal hole. The cylinder fixing hole is used to connect the lever cylinder 03 to the clamp fixed base 01, the chip guide groove 02 fixing hole is used to connect the chip guide groove 02 to the clamp fixed base 01, the positioning jaw fixing hole is used to connect the positioning jaw 05 to the clamp fixed base 01, and the movable jaw positioning fixing hole is used to connect the movable jaw positioning piece 07 to the clamp fixed base 01.

[0035] The reserved opening of the exhaust pipe 14 is set on the side of the fixture fixing base 01, so that the exhaust pipe 14 can pass through the fixture fixing base 01 and connect with the pneumatic foot switch 15. The discharge hole is used to pass the metal debris generated by drilling the workpiece 16, so that the metal debris enters the chip guide groove 02.

[0036] The components are fixed by the clamp fixing base 01. The fixing method can be bolt connection or welding. The clamp fixing base 01 plays a supporting role. The reserved holes are used to ensure the accuracy of the installation position of each component, so that the components can be used together to achieve clamping.

[0037] One end of the cylinder extension plate 11 is fixedly connected to the end of the lever cylinder 03, and the other end of the cylinder extension plate 11 is provided with a connection hole. Connection holes are provided at both ends of the cylinder connecting rod 10, and the other end of the cylinder extension plate 11 is connected to one end of the cylinder connecting rod 10 through a second connecting shaft 17, which passes through the connecting holes of the cylinder extension plate 11 and the cylinder connecting rod 10 in sequence, and a spring locking piece 09 is provided on the second connecting shaft 17. A connection hole is provided on the movable jaw 06, and the movable jaw 06 and the other end of the cylinder connecting rod 10 are connected through a first connecting shaft 08, which passes through the connecting holes of the movable jaw 06 and the cylinder connecting rod 10 in sequence, and a spring locking piece 09 is provided on the first connecting shaft 08.

[0038] The cylinder extension plate 11, the cylinder connecting rod 10 and the movable jaw 06 are connected by the first and second connecting shafts, and the locking springs 09 are arranged at both ends of the first and second connecting shafts. The first and second connecting shafts are positioned by the locking springs 09. One end of the cylinder extension plate 11 is fixedly connected to the lever cylinder 03, which can be welded. When the cylinder rod of the lever cylinder 03 is extended, one end of the cylinder extension plate 11 moves in the opposite direction of the movable jaw 06, and the other end of the cylinder extension plate 11 moves in the opposite direction of the movable jaw 06, thereby driving the cylinder connecting rod 10 to move in the direction of the movable jaw 06, and then the movable jaw 06 moves in the direction of the positioning jaw 05, so as to achieve the clamping of the workpiece 16. The cylinder extension plate 11 and the cylinder connecting rod 10 are used to change the direction of force transmission, effectively shortening the working stroke.

[0039] The movable jaw 06 is provided with a movable jaw positioning member 07 at the lower part thereof, and the movable jaw positioning member 07 is provided at one end of the upper part of the fixture fixed base 01. The movable jaw positioning member 07 can ensure that the movable jaw 06 moves in an accurate direction, aligns the movable jaw 06 with the positioning jaw 05, and thus better clamps the workpiece 16.

[0040] A positioning jaw 05 is provided at the other end of the upper part of the fixture fixed base 01, and a positioning jaw reinforcing steel plate 04 is provided at one end of the positioning jaw 05. The positioning jaw 05 is fixedly connected to the fixture fixed base 01, and the movable jaw positioning member 07 is fixedly connected to the positioning jaw 05. The positioning jaw 05 cooperates with the movable jaw 06 to clamp the workpiece 16. When in use, the position of the positioning jaw 05 remains unchanged, and the movable jaw 06 moves toward the direction of the positioning jaw 05, so that the distance between the movable jaw 06 and the positioning jaw 05 is shortened, and the workpiece 16 can be clamped.

[0041] In order to prevent the positioning jaw 05 from being damaged by long-term use, a positioning jaw reinforcing steel plate 04 is provided on one side of the positioning jaw 05, and the strength of the positioning jaw 05 is improved by the positioning jaw reinforcing steel plate 04. A rib plate can also be provided on one side of the positioning jaw 05 to further improve the strength of the positioning jaw 05 and increase the service life of the positioning jaw 05.

[0042] The other end of the lower part of the fixture fixed base 01 is provided with a chip guide groove 02, and the chip guide groove 02 is fixedly connected to the fixture fixed base. A chip guide hole is provided in the middle position of the upper part of the fixture fixed base 01. Metal debris is generated during the drilling process of the workpiece 16. The chip guide hole is provided in the middle of the movable jaw 06 and the positioning jaw 05, so that the generated metal debris can enter the chip guide groove 02 from the chip guide hole, and the metal debris is collected for easy cleaning.

[0043] The pneumatic foot switch 15 is connected to the air source air pipe 12, and the air source air pipe 12 is located between the air inlet pipe 13 and the air outlet pipe 14. The pneumatic foot switch 15 controls the air intake or exhaust of the lever cylinder 03. The pneumatic foot switch 15 is operated by stepping on or off the circuit, and can also be used to control the output current. The operator does not need to operate manually, which is convenient for operation. The air intake and exhaust can be controlled by stepping on or releasing the switch, which is easy to operate. The pneumatic foot switch 15 is connected to an external air source, and the air supply is stable.

[0044] The specific steps for using the clamping device are as follows:

[0045] like Figure 3 As shown, adjust the drilling device to the normally closed state. Install one end of the air inlet pipe 13 and the exhaust pipe 14 on the lever cylinder 03 through the reserved ports of the cylinder air inlet and exhaust pipes of the clamp fixing base 01, and connect the other end to the air inlet and outlet of the pneumatic foot switch 15. At the same time, connect the two ends 12 of the air source air pipe to the air source and the pneumatic foot switch 15. After the air source is connected, the compressed air will enter the lever cylinder 03 through the air inlet pipe 13, so that the lever cylinder 03 is in the ejection state, and through the cylinder extension plate 11 and the cylinder connecting rod 10, it drives the movable jaw positioning 07 to move forward, so that the clamping device is in the clamping state;

[0046] like Figure 4 As shown, when using the drilling device to drill a hole, the pneumatic foot switch 15 is stepped on, and the compressed air in the lever cylinder 03 will be discharged to the outside of the lever cylinder 03 through the exhaust pipe 14, so that the lever cylinder 03 is in a contracted state, and the movable jaw positioning 07 is driven to retreat through the cylinder extension plate 11 and the cylinder connecting rod 10, so that the clamping device is in an open state.

[0047] like Figure 5 As shown, place the top crossbeam into the fixture and align it with the center of the circle. Do not release the pneumatic foot switch 15 at this time. Figure 6As shown, after the top crossbeam is accurately placed, the pneumatic foot switch 15 is released, and the clamp is quickly in a clamping state to clamp the top crossbeam, thereby achieving rapid clamping, and finally the drilling operation is performed.

[0048] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A clamping device for drilling holes in the top crossbeam of a new energy bus, characterized in that: It includes a clamp fixing base, a lever cylinder is arranged at one end of the lower part of the clamp fixing base, a cylinder extension plate is arranged at the end of the lever cylinder, the cylinder extension plate is connected to the cylinder connecting rod, and the cylinder connecting rod is connected to the movable jaw; the lever cylinder is connected to one end of the air intake pipe, an exhaust pipe is arranged on the side of the air intake pipe, one end of the exhaust pipe is connected to the lever cylinder, and the other ends of the air intake pipe and the exhaust pipe are connected to the pneumatic foot switch.

2. A clamping device for drilling holes in the roof crossbeam of a new energy bus as claimed in claim 1, characterized in that: One end of the cylinder extension plate is fixedly connected to the end of the lever cylinder, and the other end of the cylinder extension plate is provided with a connecting hole.

3. A clamping device for drilling holes in the roof crossbeam of a new energy bus as claimed in claim 2, characterized in that: Connecting holes are set at both ends of the cylinder connecting rod, and the other end of the cylinder extension plate is connected to one end of the cylinder connecting rod through a second connecting shaft. The second connecting shaft passes through the connecting holes of the cylinder extension plate and the cylinder connecting rod in sequence, and a spring locking plate is set on the second connecting shaft.

4. A clamping device for drilling holes in the roof crossbeam of a new energy bus as claimed in claim 3, characterized in that: The movable jaw is provided with a connecting hole, and the movable jaw and the other end of the cylinder connecting rod are connected through a first connecting shaft, and the first connecting shaft passes through the connecting holes of the movable jaw and the cylinder connecting rod in sequence.

5. A clamping device for drilling holes in the roof crossbeam of a new energy bus as claimed in claim 1, characterized in that: A movable jaw positioning piece is arranged at the lower part of the movable jaw, and the movable jaw positioning piece is arranged at one end of the upper part of the clamp fixing base.

6. A clamping device for drilling holes in the roof crossbeam of a new energy bus as claimed in claim 1, characterized in that: A positioning jaw is arranged at the other end of the upper part of the clamp fixing base, and a positioning jaw reinforcing steel plate is arranged at one end of the positioning jaw.

7. A clamping device for drilling holes in the roof crossbeam of a new energy bus as claimed in claim 6, characterized in that: The positioning jaw is fixedly connected to the fixture fixing base, and the movable jaw positioning piece is fixedly connected to the positioning jaw.

8. A clamping device for drilling holes in a roof beam of a new energy bus as claimed in claim 1, characterized in that: A chip guide groove is arranged at the other end of the lower part of the fixture fixing base, and the chip guide groove is fixedly connected to the fixture fixing base.

9. A clamping device for drilling holes in the roof crossbeam of a new energy bus as claimed in claim 8, characterized in that: A chip guide hole is arranged in the middle of the upper part of the fixture fixing base.

10. A clamping device for drilling holes in a roof crossbeam of a new energy bus as claimed in claim 1, characterized in that: The pneumatic foot switch is connected to an air source air pipe, and the air source air pipe is located between an air inlet pipe and an air outlet pipe.

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