Machining die for front axle supporting plate of forklift frame

Abstract

The utility model belongs to the technical field of forklifts, and particularly discloses a machining die for a front axle supporting plate of a forklift frame. The machining die comprises a base plate capable of being turned over vertically, and a fixing set is arranged on at least one of the front face and the back face of the base plate and used for horizontally fixing at least one frame front axle supporting plate relative to the base plate. The fixing set comprises fixing units arranged corresponding to the frame front axle supporting plates, and each fixing unit comprises a supporting piece, a positioning piece, a jacking piece and a pressing piece, wherein the bottoms of the supporting pieces are fixed to the base plate. The frame front axle supporting plates can be fixed on the front face and the back face of the base plate, the machining angle of the frame front axle supporting plates can be adjusted, face milling, hole boring and drilling of the multiple frame front axle supporting plates can be completed on one die, procedure conversion is effectively reduced, and machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to a processing die for a front axle support plate of a forklift frame. Background Art

[0002] In the forklift industry, the front axle support plate of the forklift frame is an important component of the forklift frame system. Before the frame front axle support plate is installed on the forklift, the frame front axle support plate needs to be processed multiple times. The processing flow of the frame front axle support plate is generally: cutting - leveling - boring - milling - drilling and tapping - transfer welding. Among them, the three processing steps of milling, boring and drilling and tapping need to be processed on three special machines, which results in cumbersome procedures, long processing time and low processing efficiency. Utility Model Content

[0003] The utility model aims to provide a processing die for a front axle support plate of a forklift frame to overcome the above technical problems.

[0004] In order to achieve the above purpose, the specific technical solutions adopted by the utility model are as follows:

[0005] A processing mold for a front axle support plate of a forklift frame is used to fix the front axle support plate of the frame before processing. The front axle support plate of the frame includes a first processing surface connected to the end cover, a second processing surface connected to the front axle, an auxiliary limiting surface in a waist-shaped hole for arranging lines, two parallel first limiting surfaces forming structural edges, and a second limiting surface. The processing mold includes a base plate that can be flipped vertically, and at least one of its front and back surfaces is provided with a fixing group for fixing at least one frame front axle support plate horizontally relative to the base plate; the fixing group includes a fixing unit arranged corresponding to each frame front axle support plate, and each fixing unit includes a support member, a positioning member and a pressing member, all of which are fixed to the base plate at the bottom; at least two support members are provided, which are arranged under the frame front axle support plate for mounting; the positioning member includes a first positioning member arranged on the outside of one of the first limiting surfaces and fitted to limit the position thereof, and two second positioning members arranged on the outside of the second limiting surfaces and fitted to limit the position thereof; the pressing member is provided on the outside of the two first limiting surfaces and the outside of the second limiting surfaces, which is a corner cylinder, which presses the frame front axle support plate to the supporting member from the upper surface through the rotatable pressure plate on the top.

[0006] The utility model fixes one or more front axle support plates of a vehicle frame through a fixing group composed of fixing units. Specifically, the fixing unit includes a support member, a positioning member and a pressing member. The front axle support plate of the vehicle frame is placed on the support member, and its first limiting surface and second limiting surface are correspondingly fitted to three positioning members to complete positioning. Then, the front axle support plate of the vehicle frame is pressed down and fixed by three angle oil cylinders arranged outside the first limiting surface and the second limiting surface, and the processing angle required by different processes is adapted by turning the base plate, so that drilling and tapping of the first processing surface and milling and boring of the second processing surface can be performed. In this way, multi-step processing is achieved on one mold, and the processing efficiency of the front axle support plate of the vehicle frame is improved.

[0007] Preferably, the fixing unit further comprises a tightening member, which comprises a lateral single-axis oil cylinder and a side ram; the side ram is inserted into the waist-shaped hole of the front axle support plate of the frame, and is driven by the lateral single-axis oil cylinder to translate, exerting a force on the auxiliary limiting surface in the waist-shaped hole, thereby making the first limiting surface and the second limiting surface of the front axle support plate of the frame fit the first positioning member and the second positioning member respectively. The setting of the tightening member can help the first and second limiting surfaces to quickly fit the corresponding positioning members, thereby improving the positioning speed and stability.

[0008] Furthermore, the tightening member also includes a guide seat and a guide block slidably connected to the guide seat at the bottom; the side push head is fixedly connected to the top rear side of the guide block, and the lateral single-axis cylinder is arranged behind the guide seat and is fixedly connected to the guide block through a bolt arranged at its end; the lateral single-axis cylinder drives the bolt to move, and the bolt drives the guide block to slide on the guide seat, thereby driving the translation of the side push head.

[0009] Preferably, the support member includes two first support members arranged near the first processing surface and a second support member arranged near the second limiting surface, and three-point support improves structural stability.

[0010] Preferably, the pressing member located outside the second limiting surface is arranged between two second positioning members to further improve stability.

[0011] Preferably, when two or more frame front axle support plates are fixed on a single surface of the base plate, the clamping members in the fixing group include single-side corner oil cylinders and double-side corner oil cylinders; the adjacent frame front axle support plates have first limiting surfaces arranged oppositely, and one double-side corner oil cylinder is arranged between each group of first limiting surfaces arranged oppositely, and the remaining clamping members are single-side corner oil cylinders. That is, the adjacent frame front axle support plates share one double-side corner oil cylinder to complete the clamping and fixing of the opposite sides, thereby reducing the workload.

[0012] Preferably, the front and back sides of the base plate are both provided with fixing groups, and the two fixing groups are arranged symmetrically relative to the base plate; the left and right ends of the base plate are installed on a turntable mechanism, and the turntable mechanism drives the base plate to rotate. This arrangement can realize the rapid processing of multiple frame front axle support plates.

[0013] Furthermore, the turntable mechanism includes an oil brake turntable on one side and an oil brake disc tail stock on the other side, the inner sides of the oil brake turntable and the oil brake disc tail stock are respectively rotatably connected with a first disc and a second disc, and the left and right ends of the base plate are respectively fixed to the first disc and the second disc.

[0014] Furthermore, a turntable raising block is provided at the bottom of the oil brake turntable, a tailstock raising block is provided at the bottom of the oil brake disc tailstock, and the bottoms of the turntable raising block and the tailstock raising block are fixedly connected to the machine tool bottom plate.

[0015] Furthermore, the oil brake turntable is a four-axis turntable, which can realize the processing of the front axle support plates of the frame on both sides of the substrate at different working surfaces and different angles.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model can set fixing groups on the front and back sides of the base plate to fix and adjust the processing angle of multiple frame front axle support plates, thereby completing the milling, boring and drilling of multiple frame front axle support plates on one mold, effectively reducing process conversion and improving processing efficiency.

[0018] 2. The utility model fixes the front axle support plate of the vehicle frame through the support member, the positioning member, the jacking member and the pressing member of the fixing group, has high stability and can ensure processing quality.

[0019] 3. The utility model can realize the rapid installation and fixation of the front axle support plate of the frame and release the material, which is easy to operate and further improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : A schematic structural diagram of the front axle support plate of the vehicle frame described in the utility model.

[0021] Figure 2 : A three-dimensional structural diagram of the processing mold for the front axle support plate of the forklift frame described in Example 1 (the front side of the base plate faces upward).

[0022] Figure 3 : A three-dimensional structural diagram of the processing mold of the front axle support plate of the forklift frame described in Example 1 (the base plate is flipped to face forward).

[0023] Figure 4 : A structural schematic diagram of the front side of the base plate in the processing mold of the forklift frame front axle support plate described in Example 1.

[0024] Figure 5 : A three-dimensional structural diagram of the top tightening part in the processing mold of the front axle support plate of the forklift frame described in Example 1.

[0025] Figure 6 : A cross-sectional view of the top fastening part in the processing mold of the front axle support plate of the forklift frame described in Example 1.

[0026] In the figure: 1-base plate, 2-first support member, 3-second support member, 4-first positioning member, 5-second positioning member, 6-single-sided angle cylinder, 7-double-sided angle cylinder, 8-tightening member, 9-turntable mechanism, 10-machine tool bottom plate, 11-frame front axle support plate; 8.1-lateral single-axis cylinder, 8.2-bolt, 8.3-guide seat, 8.4-guide block, 8.5-side top head, 8.6-screw, 9.1-oil brake turntable, 9.2-first disc, 9.3-turntable pad, 9.4-oil brake disc tailstock, 9.5-second disc, 9.6-tailstock pad; A-first processing surface, B-second processing surface, C-first limit surface, D-auxiliary limit surface, E-second limit surface. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] A processing mold for a front axle support plate of a forklift frame is used to fix the front axle support plate 11 of the frame before processing. The front axle support plate 11 of the frame is as follows: Figure 1 As shown, the front axle support plate 11 of the frame includes a first processing surface A connected to the end cover, a second processing surface B connected to the front axle, an auxiliary limiting surface D in the waist-shaped hole for arranging the line, two parallel first limiting surfaces C and a second limiting surface E forming the structural edge; wherein the first processing surface A is the end surface for threaded connection at both ends, and the second processing surface B is the arc part in the middle. The milling, boring and drilling and tapping of the front axle support plate 11 of the frame mainly involve the first processing surface A and the second processing surface B.

[0030] The structure of the processing mold of the forklift frame front axle support plate is as follows Figure 2-4 As shown, it includes a vertically flippable base plate 1 and two fixing groups arranged on the front and back sides of the base plate 1. The two fixing groups are symmetrically arranged relative to the base plate 1. Each fixing group has two fixing units for correspondingly fixing two frame front axle support plates 11. The fixing units include three supporting members, three positioning members, a top tightening member 8 and three pressing members, all of which are fixed to the base plate 1 at the bottom.

[0031] In each fixing unit, the support member is arranged below the front axle support plate 11 of the frame for mounting, including two first support members 2 arranged near the first processing surface A and a second support member 3 arranged near the second limiting surface E. The positioning member is used to position the front axle support plate 11 of the frame at the processing position, including a first positioning member 4 arranged on the outside of one end of the first limiting surface C on the right side near the first processing surface A and two second positioning members 5 arranged on the outside of the second limiting surface E and fitting and limiting the same. The clamping member is provided on the outer side of the two first limiting surfaces C near one end of the first processing surface A and on the outer side of the second limiting surface E, and the clamping member on the outer side of the second limiting surface E is arranged between the two second positioning members 5; wherein, the clamping member arranged on the outer side of the first limiting surface C and the second limiting surface E on the left side (edge ​​side) is a single-sided corner cylinder 6, and the clamping member arranged on the outer side of the first limiting surface C on the right side (adjacent sides of the two front axle support plates 11 of the frame) is a double-sided corner cylinder 7, and the front axle support plate 11 of the frame is pressed against the support member from the upper surface through the rotatable pressure plate on the top of the corner cylinder; the double-sided corner cylinder 7 is shared by two fixed units.

[0032] The structure of the pressing member 8 in the fixing unit is as follows: Figure 5-6 As shown, it includes a lateral single-axis oil cylinder 8.1, a bolt 8.2, a guide seat 8.3, a guide block 8.4, a side head 8.5 and a screw 8.6. The side head 8.5 is fixed to the top rear side of the guide block 8.4 by means of the screw 8.6; the bottom of the guide block 8.4 is slidably connected to the guide seat 8.3, and the lateral single-axis oil cylinder 8.1 is arranged at the rear of the guide seat 8.3 and is fixed to the guide block 8.4 by means of the bolt 8.2 arranged at its end. When placing the front axle support plate 11 of the forklift frame, the top of the guide block 8.4 and the side head 8.5 are placed in the waist-shaped hole of the front axle support plate 11 of the frame, and the lateral single-axis cylinder 8.1 drives the bolt 8.2 to move, and the bolt 8.2 drives the guide block 8.4 to slide on the guide seat 8.3, and then drives the side head 8.5 to translate and apply a force to the auxiliary limiting surface D in the waist-shaped hole, so that the first limiting surface C and the second limiting surface E of the front axle support plate 11 of the frame are respectively attached to the first positioning member 4 and the second positioning member 5, and its positioning is quickly completed.

[0033] The base plate 1 is mounted on a turntable mechanism 9, which includes an oil brake turntable 9.1 on one side and an oil brake disc tailstock 9.4 on the other side. The inner sides of the oil brake turntable 9.1 and the oil brake disc tailstock 9.4 are rotatably connected with a first disc 9.2 and a second disc 9.5, respectively. The left and right ends of the base plate 1 are respectively fixed to the L-plates on the inner sides of the first disc 9.2 and the second disc 9.5. The oil brake turntable 9.1 is a four-axis turntable, which has a power component inside to drive the first disc 9.2 to rotate and then drive the base plate 1 and the second disc 9.5 to rotate; the oil brake turntable 9.1 is fixed to the machine tool bottom plate 10 through the turntable pad 9.3 set at the bottom, and the oil brake disc tailstock 9.4 is fixed to the machine tool bottom plate 10 through the tailstock pad 9.6 set at the bottom. In this way, the processing mold is arranged on the machine tool, and the rotation of the processing mold is realized. At the same time, the oil circuits of the molds are concentrated inside the base plate 1, and the pipelines are concentrated behind the oil brake turntable 9.1 and the oil brake disc tailstock 9.4, so as to reduce the oil leakage points of the pipelines.

[0034] The use process of the processing mold of the forklift frame front axle support plate is as follows:

[0035] The utility model cooperates with the mechanical arm to load and unload materials. First, the entire processing mold is in Figure 2 In a horizontal state, all cylinders are in an unused state, and the robotic arm grabs the two frame front axle support plates 11 from the loading area to the front fixing group area of ​​the base plate 1; the lateral single-axis cylinder 8.1 of the front fixing group drives the side head 8.5 to apply force to the auxiliary limit surface D of the two frame front axle support plates 11, so that the first limit surface C and the second limit surface E of the two frame front axle support plates 11 are respectively attached to the first positioning member 4 and the second positioning member 5; and then the two frame front axle support plates 11 are fixed on the support member through the corner cylinder of the front fixing group. Then, the four-axis turntable drives the processing mold to rotate 180° counterclockwise to a horizontal state, and the positioning and fixing of the two frame front axle support plates 11 on the back side of the base plate 1 are completed through the reverse fixing group according to the above operations.

[0036] At this time, the second processing surface B of the two front axle support plates 11 of the frame located on the back side of the substrate 1 can be bored. After the boring is completed, the four-axis turntable drives the processing mold to rotate 180° clockwise to a horizontal state; at this time, the second processing surface B of the two front axle support plates 11 of the frame located on the front side of the substrate 1 is bored. After the boring is completed, the four-axis turntable drives the processing mold to rotate 90° counterclockwise to a vertical state ( Figure 3); at this time, the end faces of the first processing surface A of the four-piece frame front axle support plate 11 are first milled, and then the threaded holes at both ends are processed. After the processing is completed, the four-axis turntable drives the processing mold to rotate 90° counterclockwise to a horizontal state; at this time, the lateral single-axis cylinder 8.1 of the reverse fixed group drives the side head 8.5 to disengage from the auxiliary limiting surface D of the two-piece frame front axle support plate 11 on the reverse side of the base plate 1. At the same time, the corner cylinder of the reverse fixed group moves to a relaxed state, and then the robotic arm moves the base plate 1 The two frame front axle support plates 11 on the back are taken out and placed in the unloading area, and finally the four-axis turntable drives the processing mold to rotate 180° clockwise to a horizontal state; at this time, the lateral single-axis cylinder 8.1 of the front fixing group drives the side head 8.5 to disengage from the auxiliary limiting surface D of the two frame front axle support plates 11 located on the front of the base plate 1, and at the same time, the corner cylinder of the front fixing group moves to a relaxed state, and then the robotic arm takes out the two frame front axle support plates located on the front of the base plate 1 and places them in the unloading area to complete the processing.

[0037] Therefore, this embodiment realizes the completion of the milling, boring and drilling of the four-piece frame front axle support plates on one processing mold, effectively reducing process conversion and improving processing efficiency.

[0038] This specific implementation method is only an explanation of the utility model, not a limitation of the utility model. Any changes made by those skilled in the art after reading the specification of the utility model will be protected by the patent law as long as they are within the scope of the claims of the utility model.

Claims

1. A processing mold for a front axle support plate of a forklift frame, used for fixing the front axle support plate (11) of the frame before processing, wherein the front axle support plate (11) of the frame comprises a first processing surface (A) connected to an end cover, a second processing surface (B) connected to a front axle, an auxiliary limiting surface (D) in a waist-shaped hole for arranging a line, two parallel first limiting surfaces (C) and a second limiting surface (E) forming a structural edge, characterized in that: The processing mold comprises a vertically flippable base plate (1), at least one of the front and back surfaces of which is provided with a fixing group for fixing at least one vehicle frame front axle support plate (11) horizontally relative to the base plate (1); The fixing group comprises a fixing unit arranged corresponding to each front axle support plate (11) of the vehicle frame, and each fixing unit comprises a supporting member, a positioning member and a pressing member, all of which have their bottoms fixed to the base plate (1); At least two support members are provided, which are arranged below the front axle support plate (11) of the vehicle frame for mounting; The positioning member comprises a first positioning member (4) arranged outside the first limiting surface (C) for fitting and limiting the position thereof, and two second positioning members (5) arranged outside the second limiting surface (E) for fitting and limiting the position thereof; The clamping member is provided on the outer sides of the two first limiting surfaces (C) and the outer sides of the second limiting surface (E), and is a rotary oil cylinder, which presses the front axle support plate (11) of the frame against the support member from the upper surface through a rotatable pressure plate at the top.

2. The processing mold for the front axle support plate of a forklift frame according to claim 1, characterized in that: The fixing unit also includes a tightening member (8), and the tightening member (8) includes a lateral single-axis oil cylinder (8.1) and a lateral ejector head (8.5); the lateral ejector head (8.5) is inserted into the waist-shaped hole of the front axle support plate (11) of the frame, and is driven by the lateral single-axis oil cylinder (8.1) to translate, thereby applying a force to the auxiliary limiting surface (D) in the waist-shaped hole, thereby making the first limiting surface (C) and the second limiting surface (E) of the front axle support plate (11) of the frame fit the first positioning member (4) and the second positioning member (5) respectively.

3. The processing mold for the front axle support plate of a forklift frame according to claim 2, characterized in that: The pressing member (8) further comprises a guide seat (8.3) and a guide block (8.4) whose bottom is slidably connected to the guide seat (8.3); the side head (8.5) is fixedly connected to the top rear side of the guide block (8.4); the side single-axis oil cylinder (8.1) is arranged behind the guide seat (8.3) and is fixedly connected to the guide block (8.4) via a bolt (8.2) arranged at its end; the side single-axis oil cylinder (8.1) drives the bolt (8.2) to move, and the bolt (8.2) drives the guide block (8.4) to slide on the guide seat (8.3), thereby driving the side head (8.5) to translate.

4. The processing mold for the front axle support plate of a forklift frame according to claim 1, characterized in that: The support member comprises two first support members (2) arranged near the first processing surface (A) and a second support member (3) arranged near the second limiting surface (E).

5. The processing mold for the front axle support plate of a forklift frame according to claim 1, characterized in that: The pressing member located outside the second limiting surface (E) is arranged between the two second positioning members (5).

6. The processing mold for the front axle support plate of a forklift frame according to claim 1 or 5, characterized in that: When two or more vehicle frame front axle support plates (11) are fixed on a single surface of the base plate (1), the clamping members in the fixing group include two types: a single-sided corner oil cylinder (6) and a double-sided corner oil cylinder (7); adjacent vehicle frame front axle support plates (11) have first limiting surfaces (C) arranged opposite to each other, and one of the double-sided corner oil cylinders (7) is arranged between each group of first limiting surfaces (C) arranged opposite to each other, and the remaining clamping members are single-sided corner oil cylinders (6).

7. The processing mold for the front axle support plate of a forklift frame according to claim 1, characterized in that: The front and back sides of the substrate (1) are both provided with fixing groups, and the two fixing groups are arranged symmetrically relative to the substrate (1); the left and right ends of the substrate (1) are mounted on a turntable mechanism (9), and the turntable mechanism (9) drives the substrate (1) to rotate.

8. The processing mold for the front axle support plate of a forklift frame according to claim 7, characterized in that: The turntable mechanism (9) comprises an oil brake turntable (9.1) on one side and an oil brake disc tailstock (9.4) on the other side; the inner sides of the oil brake turntable (9.1) and the oil brake disc tailstock (9.4) are rotatably connected to a first disc (9.2) and a second disc (9.5), respectively; and the left and right ends of the base plate (1) are fixedly connected to the first disc (9.2) and the second disc (9.5), respectively.

9. The processing mold for the front axle support plate of a forklift frame according to claim 8, characterized in that: A turntable raising block (9.3) is provided at the bottom of the oil brake turntable (9.1), and a tailstock raising block (9.6) is provided at the bottom of the oil brake disc tailstock (9.4). The bottoms of the turntable raising block (9.3) and the tailstock raising block (9.6) are fixedly connected to the machine tool bottom plate (10).

10. The processing mold for the front axle support plate of a forklift frame according to claim 8, characterized in that: The oil brake turntable (9.1) is a four-axis turntable.

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