Drilling clamp for box body of electric forklift
By designing electric forklift box drilling fixtures, using components such as telescopic hydraulic cylinders and push clamping cylinders to achieve precise positioning, the problem of difficulty in ensuring accuracy when drilling electric forklift box in the prior art is solved, and processing efficiency and accuracy are improved.
Patent Information
- Application Number
- CN202422357198.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-26
AI Technical Summary
When drilling holes in the existing electric forklift box, there is a lack of special fixtures, which makes it difficult to ensure processing accuracy, and the workpiece is easily moved when drilling holes on the flange end surface and the sleeve end surface.
An electric forklift box drilling fixture is designed, using components such as telescopic hydraulic cylinder, push clamping cylinder and sleeve limiting plate to realize the radial positioning, circumferential and axial positioning of the spindle channel, and accurately position the end face of the sleeve through the sleeve limiting plate.
It improves the machining accuracy and efficiency when drilling holes in the electric forklift box, especially the positioning of the end face of the shaft sleeve is more accurate, and the machining quality is improved.
Smart Images
Figure CN223130098U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a drilling fixture, in particular to a drilling fixture for an electric forklift box body. Background Technique
[0002] As Figure 1 shown, the existing electric forklift box body includes a main shaft channel 1 and a sub-shaft channel 2. The main shaft channel includes front and rear end faces. A stepped end face is arranged between the front and rear end faces of the main shaft channel. The connecting end face of the sub-shaft channel is provided with a flange end face 4 and a bushing end face 3. During processing, it is necessary to position and clamp the electric forklift box body through the center of the main shaft channel to ensure that the flange end face 4 and the bushing end face 3 are vertically upward and fixed in position, and then drill holes corresponding to the flange end face 4 and the bushing end face 3.
[0003] However, there is no special drilling fixture for the electric forklift box body at present. It can only be clamped and fixed through an ordinary clamp seat. When the ordinary clamp seat clamps the electric forklift box body, it is difficult to clamp. When drilling holes on the flange end face 4 and the bushing end face 3, the electric forklift box body will move, affecting the processing accuracy. Content of the Utility Model
[0004] In order to solve the above technical problems, the utility model designs a drilling fixture for an electric forklift box body.
[0005] The utility model adopts the following technical scheme:
[0006] A drilling fixture for an electric forklift box body includes a workbench. A vertical support frame is fixedly arranged in the middle of the workbench. A telescopic hydraulic cylinder is fixedly installed at the central position of the rear part of the vertical support frame. The output end of the telescopic hydraulic cylinder extends to the front part of the vertical support frame and is fixedly connected to a telescopic shaft. A central positioning table is arranged at the center of the front part of the vertical support frame. The telescopic shaft extends out from the center of the central positioning table. A support table is arranged at the upper part of the vertical support frame. A bushing limiting plate is hinged to the rear part of the vertical support frame. A bushing limiting groove is arranged on the bushing limiting plate. Push and clamp cylinders are respectively arranged on both sides of the rear part of the workbench. The output ends of the push and clamp cylinders press against both sides of the bushing limiting plate. A chuck is installed at the front end of the telescopic shaft.
[0007] When the drilling fixture for the electric forklift box body is in use, the central positioning table is used to socket the central hole of the rear end face of the main shaft channel for radial positioning. The chuck is controlled by the telescopic hydraulic cylinder to clamp the workpiece, and the support of the support table is used for circumferential and axial positioning. The push and clamp cylinders press against the bushing limiting plate, and the bushing limiting groove on the bushing limiting plate clamps the outer side of the bushing of the workpiece for accurate positioning when drilling the bushing end face of the workpiece.
[0008] Preferably, oblique pressing cylinders are arranged on both sides of the support table. The oblique pressing cylinders are used for further circumferential positioning of the workpiece.
[0009] Preferably, transverse fastening knobs are provided on both sides of the support table. The transverse fastening knobs are used for further positioning of the workpiece in the circumferential direction.
[0010] Preferably, a guiding device is fixedly installed on the central positioning table, and the telescopic shaft telescopically moves along the guiding device.
[0011] Preferably, a contraction groove is provided at the front end of the telescopic shaft, a chuck that is arranged in cooperation with the contraction groove is hinged in the contraction groove, and a telescopic spring is installed between the chuck and the telescopic shaft. It is convenient for the workpiece to pass through the chuck and be sleeved outside the central positioning table for positioning.
[0012] Preferably, a return spring is installed between the bushing limiting plate and the vertical support frame. The return spring is used for the bushing limiting plate to reset after the pushing and clamping cylinder contracts.
[0013] The beneficial effects of the present utility model are as follows: The present utility model designs an electric forklift box body drilling fixture, which is specifically used for precise positioning and clamping during the drilling of the electric forklift box body, greatly improving the processing efficiency and processing accuracy. In particular, the bushing end face is further clamped and limited by the bushing limiting plate, and the accuracy during processing is high. Description of the Drawings
[0014] Figure 1 is a structural schematic diagram of an existing electric forklift box body;
[0015] Figure 2 is a structural schematic diagram of the present utility model;
[0016] Figure 3 is a schematic diagram of the use state of the present utility model;
[0017] Figure 4 is Figure 3 a partial structural schematic diagram of the rear part of the fixture in ;
[0018] In the figure: 1, main shaft channel; 2, sub-shaft channel; 3, bushing end face; 4, flange end face; 5, workbench; 6, vertical support frame; 7, central positioning table; 8, telescopic shaft; 9, guiding device; 10, support table; 11, bushing limiting plate; 12, transverse fastening knob; 13, oblique pressing cylinder; 14, bushing limiting groove; 15, return spring; 16, chuck; 17, telescopic spring; 18, contraction groove; 19, pushing and clamping cylinder; 20, telescopic hydraulic cylinder. Detailed Embodiment
[0019] The technical solutions of the present utility model will be further specifically described below through specific embodiments and in conjunction with the drawings:
[0020] Embodiment: As Figures 2 - 4As shown in the figure, an electric forklift box body drilling fixture includes a workbench 5. A vertical support frame 6 is fixedly arranged in the middle of the workbench. A telescopic hydraulic cylinder 20 is fixedly installed at the central position at the rear of the vertical support frame. The output end of the telescopic hydraulic cylinder extends to the front of the vertical support frame and is fixedly connected to a telescopic shaft 8. A central positioning table 7 is arranged at the center of the front of the vertical support frame. The telescopic shaft extends out from the center of the central positioning table. A support table 10 is arranged at the upper part of the vertical support frame. A sleeve limiting plate 11 is hinged to the rear of the vertical support frame. A sleeve limiting groove 14 is arranged on the sleeve limiting plate. Push clamping cylinders 19 are respectively arranged on both sides at the rear of the workbench. The output ends of the push clamping cylinders press against both sides of the sleeve limiting plate. A chuck 16 is installed at the front end of the telescopic shaft.
[0021] Oblique pressing cylinders 13 are arranged on both sides of the support table. Transverse fastening knobs 12 are arranged on both sides of the support table. A guiding device 9 is fixedly installed on the central positioning table. The telescopic shaft telescopically moves along the guidance of the guiding device. A contraction groove 18 is arranged at the front end of the telescopic shaft. A chuck which is arranged in cooperation with the contraction groove is hinged in the contraction groove. A telescopic spring 17 is installed between the chuck and the telescopic shaft. A reset spring 15 is installed between the sleeve limiting plate and the vertical support frame.
[0022] When the electric forklift box body drilling fixture is in use, the central positioning table is used to socket the center hole at the rear end face of the main shaft channel for radial positioning. The chuck is controlled by the telescopic hydraulic cylinder to clamp the workpiece, and the support of the support table is used for circumferential and axial positioning. The push clamping cylinder presses against the sleeve limiting plate. The sleeve limiting groove on the sleeve limiting plate clamps the outer side face of the sleeve of the workpiece for precise positioning during the drilling of the end face of the workpiece sleeve.
[0023] The above embodiments are only a better solution of the present invention, and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions recorded in the claims.
Claims
1. An electric forklift box drilling fixture, comprising a workbench, characterized in that, A vertical support frame is fixedly arranged in the middle of the workbench. A telescopic hydraulic cylinder is fixedly installed at the central position of the rear part of the vertical support frame. The output end of the telescopic hydraulic cylinder extends to the front part of the vertical support frame and is fixedly connected to a telescopic shaft. A central positioning table is arranged at the center of the front part of the vertical support frame. The telescopic shaft extends out from the center of the central positioning table. A support table is arranged at the upper part of the vertical support frame. A sleeve limiting plate is hinged to the rear part of the vertical support frame. A sleeve limiting groove is arranged on the sleeve limiting plate. Push and clamp cylinders are respectively arranged on both sides of the rear part of the workbench. The output ends of the push and clamp cylinders press against both sides of the sleeve limiting plate; a chuck is installed at the front end of the telescopic shaft.
2. The drilling fixture for the electric forklift box according to claim 1, characterized in that, Oblique pressing cylinders are arranged on both sides of the support table.
3. The drilling fixture for the electric forklift box according to claim 1, characterized in that, Transverse fastening knobs are arranged on both sides of the support table.
4. The drilling fixture for the electric forklift box according to claim 1, characterized in that, A guiding device is fixedly installed on the central positioning table, and the telescopic shaft telescopically moves along the guiding of the guiding device.
5. The drilling fixture for the electric forklift box according to claim 1, characterized in that, A contraction groove is arranged at the front end of the telescopic shaft. A chuck which is arranged in cooperation with the contraction groove is hinged in the contraction groove. A telescopic spring is installed between the chuck and the telescopic shaft.
6. The drilling fixture for the electric forklift box according to claim 1, characterized in that, A reset spring is installed between the sleeve limiting plate and the vertical support frame.