Tire inflation safety cage splicing tool

Abstract

The tire inflation safety cage splicing tool comprises a rectangular base, a front side positioning frame, a left side positioning column set, a right side positioning column, a left side movable pressing plate set, a right side fixed pressing plate set, a supporting angle iron set and a left side connecting plate. A bottom plate positioning area is arranged on the top surface of the rectangular base, and an adjustable fixed stopper is arranged at the rear end; a positioning groove matched with a front frame of the safety cage is formed in the inner side of the front side positioning frame; the left positioning column group comprises two positioning columns with horizontal cylinders; the front end of the right positioning column is provided with a connecting block for door opening and closing bolt positioning; the left movable pressing plate group is driven by a cylinder; the right fixed pressing plate group is fixed on the inner side of the right positioning column; the supporting angle iron group is distributed at the top of the front positioning frame and in the middles of the left positioning column group and the right positioning column. According to the tool, accurate positioning and splicing of all parts of the safety cage are achieved through the structure, the splicing accuracy and efficiency are improved, universality is enhanced, and the product quality and stability of the safety cage are effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical manufacturing tooling, in particular to a tire inflation safety cage splicing tooling. Background Art

[0002] Tire inflation safety cage is an indispensable safety protection device in the tire production and testing process. Its structure is usually composed of multiple metal frame parts. In the fields of automobile manufacturing, tire testing, etc., the splicing quality of the safety cage directly affects the safety of equipment operation and production efficiency.

[0003] At present, the splicing of safety cages in the industry mainly relies on manual operation, and there are the following outstanding problems:

[0004] 1. Insufficient positioning accuracy: Manual alignment of components is susceptible to visual errors and fatigue, resulting in uneven joint gaps and affecting the overall structural strength;

[0005] 2. Low efficiency: A single safety cage needs to be assembled with 10-15 parts, and a skilled worker needs 15-20 minutes to complete a set of assembly, which cannot meet the needs of large-scale production;

[0006] 3. High labor intensity: The weight of the parts is usually 5-10kg, and manual handling consumes a lot of energy, which can easily cause occupational injuries such as lumbar muscle strain;

[0007] 4. High safety hazard: There is a risk of component rebound when manually hammering and fixing. According to statistics from a tire factory in 2022, the accident rate of the splicing process accounted for 23% of the total accidents in the workshop;

[0008] 5. Poor adaptability of tooling: Traditional tooling is mostly simple fixtures, and parts need to be replaced frequently to adapt to safety cages of different specifications. The changeover time accounts for more than 30% of the production cycle.

[0009] In the existing technology, some companies have tried to use universal mechanical clamps to assist in splicing, but there are the following limitations: the clamp structure is complex and requires professional technicians to operate; there is a lack of automated pushing mechanism, and the position of components still needs to be adjusted manually; there is no special positioning reference designed for the structural characteristics of the safety cage, such as "multiple right-angle bends and multiple hole alignments", resulting in a splicing pass rate of only 85%-90%.

[0010] In summary, the development of a special splicing tool with compact structure, precise positioning and rapid changeover is of great significance to improving the production quality and efficiency of safety cages. Summary of the invention

[0011] In order to effectively solve the problems in the above-mentioned background technology, the present invention proposes a tire inflation safety cage splicing tool.

[0012] The specific technical solutions are as follows:

[0013] A tire inflation safety cage assembly tool, characterized by comprising a rectangular base, a front positioning frame, a left positioning column group, a right positioning column, a left movable pressure plate group, a right fixed pressure plate group, a supporting angle iron group and a left connecting plate;

[0014] A bottom plate positioning area is provided on the top surface of the rectangular base, and an adjustable fixed stopper is provided at the rear end of the bottom plate positioning area;

[0015] The front positioning frame is vertically fixed to the front end of the base, and a positioning groove matching the front frame of the safety cage is provided on the inner side thereof;

[0016] The left positioning column group includes two symmetrically arranged vertical positioning columns, and each positioning column is provided with two horizontal cylinders at intervals along the height direction;

[0017] The right positioning column is a single vertical positioning column, and a connecting block for positioning the door latch is provided at its front end;

[0018] The left movable pressing plate group includes four movable pressing plates arranged corresponding to the left positioning column group, and each movable pressing plate is driven to move horizontally by a cylinder piston rod;

[0019] The right fixed pressure plate group includes four fixed pressure plates fixed to the inner side of the right positioning column;

[0020] The supporting angle iron group includes three groups of supporting angle irons arranged at the top of the front positioning frame, the middle of the left positioning column group and the middle of the right positioning column;

[0021] The left connecting plate connects the middle parts of the two left positioning columns.

[0022] Preferably, U-shaped tube fixing grooves are provided at corresponding positions of the left movable pressure plate group and the right fixed pressure plate group, the groove width of the fixing groove matches the tube diameter of the safety cage U-shaped tube, and the groove depth is 1 / 3-1 / 2 of the tube diameter.

[0023] Preferably, the distance between the two positioning columns of the left positioning column group is 1.05-1.1 times the width of the safety cage, and the two cylinders on each positioning column drive the upper and lower movable pressure plates respectively.

[0024] Preferably, the three groups of supporting angle irons of the supporting angle iron group are respectively located at the front end of the top of the front positioning frame, the inner side of the middle of the left positioning column group and the inner side of the middle of the right positioning column. The top surface heights of each group of supporting angle irons are consistent to form a horizontal supporting surface of the connecting beam.

[0025] Preferably, the adjustable fixed stopper includes a fixed seat, an adjusting screw and a positioning plate;

[0026] The fixing seat is fixed to the rear end of the base by bolts;

[0027] The adjusting screw is threadedly connected to the fixing seat and is perpendicular to the base;

[0028] The positioning plate is fixed to the front end of the adjusting screw, and the front end surface of the positioning plate is in contact with the rear end surface of the bottom plate of the safety cage.

[0029] Preferably, the connection block of the right positioning column is an L-shaped structure, the vertical surface of which is fixed to the positioning column, and the horizontal surface is provided with a positioning hole that cooperates with the safety cage latch.

[0030] Preferably, the thickness of the pressing plates of the left movable pressing plate group and the right fixed pressing plate group is 8-12 mm, and the length of the pressing plates covers the entire vertical height of the U-shaped tube of the safety cage.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: each component of the tooling has a clear positioning and fixing method, forming a set of standardized splicing processes. The operator only needs to place the various components of the safety cage in the corresponding positions in sequence according to the prescribed steps to complete the splicing preparation work, which reduces the operator's skill dependence and operation time and improves the overall production efficiency. For example, the connecting block is an L-shaped structure, the vertical surface of which is fixed to the positioning column, and the horizontal surface is provided with a positioning hole that cooperates with the safety cage latch. This standardized structural design makes the installation of the door latch more convenient and quick, without the need for additional adjustment and calibration, and effectively improves the splicing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a stereogram of the present invention;

[0033] Figure 2 It is a three-dimensional diagram of another direction of the present invention;

[0034] Figure 3 is a three-dimensional diagram of the safety cage of the present invention;

[0035] Figure 4 It is a usage state diagram of the present invention. DETAILED DESCRIPTION

[0036] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0037] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings and preferred embodiments. Figure 1 As shown, the present invention proposes a tire inflation safety cage splicing tool, including a base 1, a front positioning frame 2, a left positioning column 3, a right positioning column 4, a left movable pressure plate 5, a right fixed pressure plate 6, a left connecting plate 7, a cylinder 8 and a supporting angle iron 9, wherein the front positioning frame is fixed to one side of the base, the left positioning columns are two, respectively fixed to the left sides of the base, each left positioning column is fixed with two cylinders, the piston rods of the two cylinders on each left positioning column are fixed with the left movable pressure plate, the left movable pressure plate is two pieces, the upper and lower Distribution, the cylinder can drive the left movable pressure plate to move, and press the U-shaped tube 101 of the safety cage to be assembled from the side. Correspondingly, two right-side fixed pressure plates are fixed on the right-side positioning column on the corresponding side of the left movable pressure plate, and the right-side fixed pressure plate remains stationary. Fixed grooves 10 are correspondingly provided on the left movable pressure plate and the right movable pressure plate, which are used to limit the U-shaped tube 101 of the safety cage. Furthermore, in order to support and position the connecting beam 102 on the safety cage, supporting angle irons are provided at corresponding positions of the left connecting plate, the right positioning column and the front positioning frame.

[0038] The specific usage is as follows:

[0039] Place the rectangular base steadily on the operating site and ensure that its top surface is in a horizontal state. Use a level to measure and adjust the horizontal error of the base to within ±0.5°. Mark the bottom plate positioning area on the top surface of the base to ensure that the size of the positioning area matches the bottom plate of the safety cage. Install the adjustable fixed block: fix the fixing seat to the rear end of the base with bolts, the adjusting screw is threadedly connected to the fixing seat and perpendicular to the base, the positioning plate is fixed to the front end of the adjusting screw, and the position of the positioning plate is adjusted by rotating the adjusting screw so that its front end surface is in close contact with the rear end surface of the bottom plate of the safety cage. Fix the front positioning frame vertically to the front end of the base to ensure that its inner positioning groove is accurately matched with the front frame of the safety cage, and the size error is controlled within ±0.2mm. Install the left positioning column group, and set the two vertical positioning columns symmetrically on the left side of the base to ensure that the vertical error of the positioning column is within ±0.3°. Two horizontal cylinders are set at intervals along the height direction for each positioning column. The cylinder installation must ensure that the direction of extension and contraction of the piston rod is consistent with the direction of movement of the movable pressure plate. Install the right-side positioning column and fix the L-shaped connecting block at its front end. The horizontal surface of the connecting block is processed with the positioning hole that matches the safety cage latch. The dimensional error is controlled within ±0.1mm. Install the left-side movable pressure plate group to ensure that each movable pressure plate moves horizontally smoothly under the drive of the cylinder piston rod. Fix the right-side fixed pressure plate group to ensure that its U-shaped tube fixing groove corresponds to the left-side movable pressure plate group, the groove width matches the diameter of the U-shaped tube, the groove depth is 1 / 3-1 / 2 of the tube diameter, and the dimensional error is controlled within ±0.1mm. Install the support angle iron group to ensure that the top surfaces of the three groups of support angle irons are of the same height to form a horizontal support surface for the connecting beam. The height error is controlled within ±0.1mm. Connect the left connecting plate to enhance the overall stability of the left-side positioning column group.

[0040] Splicing operation process

[0041] 1. Place the base plate

[0042] Place the bottom plate of the safety cage in the positioning area of ​​the base bottom plate, with the rear end surface in contact with the adjustable fixed stopper positioning plate. Fine-tune the positioning plate to ensure the accurate position of the bottom plate, with the error controlled within ±0.5mm.

[0043] 2. Place the front frame

[0044] Place the front frame of the safety cage into the positioning groove of the front positioning frame to ensure a tight fit and control the positioning error within ±0.2mm.

[0045] 3. Place the connecting beam

[0046] Place the connecting beam on the horizontal support surface of the supporting angle iron group to ensure that the horizontal error is controlled within

[0047] Within ±0.2°.

[0048] 4. Placement of U-shaped tube

[0049] Place the U-shaped tube vertically into the U-shaped tube fixing groove of the left movable pressure plate group and the right fixed pressure plate group, ensuring that the center deviation is controlled within ±0.3mm.

[0050] 5. Press the U-shaped tube

[0051] The start cylinder drives the left movable pressure plate group to move horizontally, pressing the U-shaped tube to the right fixed pressure plate group. The distance between the two positioning columns of the left positioning column group is 1.05-1.1 times the width of the safety cage. The two cylinders on each positioning column drive the upper and lower movable pressure plates respectively to ensure that the U-shaped tube is firmly fixed.

[0052] 6. Position the door latch

[0053] Insert the safety cage door latch into the positioning hole of the right positioning column connection block to ensure that the positioning error is controlled within

[0054] Within ±0.1mm.

[0055] 7. Welding operation

[0056] After all parts are positioned and fixed, welding is carried out. After welding is completed, the cylinder is reset and the assembled safety cage is taken out.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A tire inflation safety cage splicing tool, characterized in that: include: A rectangular base (1) having a bottom plate positioning area on its top surface, and an adjustable fixed stopper (11) disposed at the rear end of the bottom plate positioning area; A front positioning frame (2) is vertically fixed to the front end of the base, and has an inner side provided with a positioning groove matching the front frame of the safety cage; The left positioning column group (3) comprises two symmetrically arranged vertical positioning columns, each positioning column being provided with two horizontal cylinders (8) spaced apart in the height direction; The right positioning column (4) is a single vertical positioning column, and a connecting block (12) for positioning the door latch is arranged at its front end; The left movable pressing plate group (5) comprises four movable pressing plates arranged corresponding to the left positioning column group, each movable pressing plate being driven by a cylinder piston rod to move horizontally; The right fixed pressure plate group (6) comprises four fixed pressure plates fixed to the inner side of the right positioning column; The supporting angle iron group (9) comprises three groups of supporting angle irons arranged at the top of the front positioning frame, the middle of the left positioning column group and the middle of the right positioning column; The left connecting plate (7) connects the middle parts of the two left positioning columns.

2. The tooling according to claim 1, characterized in that: The left movable pressure plate group (5) and the right fixed pressure plate group (6) are both provided with U-shaped tube fixing grooves (10) at corresponding positions. The groove width of the fixing groove (10) matches the tube diameter of the safety cage U-shaped tube (101), and the groove depth is 1 / 3-1 / 2 of the tube diameter.

3. The tooling according to claim 1, characterized in that: The distance between the two positioning columns of the left positioning column group (3) is 1.05-1.1 times the width of the safety cage, and the two cylinders (8) on each positioning column drive the upper and lower movable pressure plates respectively.

4. The tooling according to claim 1, characterized in that: The three groups of supporting angle irons of the supporting angle iron group (9) are respectively located at the front end of the top of the front positioning frame, the inner side of the middle of the left positioning column group and the inner side of the middle of the right positioning column. The top surfaces of the supporting angle irons of each group are of the same height, forming a horizontal supporting surface of the connecting beam (102).

5. The tooling according to claim 1, characterized in that: The adjustable fixed stopper (11) comprises: A fixed seat, fixed to the rear end of the base by bolts; An adjusting screw, threadedly connected to the fixing seat and perpendicular to the base; The positioning plate is fixed to the front end of the adjusting screw rod, and its front end surface is in contact with the rear end surface of the safety cage bottom plate (103).

6. The tooling according to claim 1, characterized in that: The connecting block (12) of the right positioning column (4) is an L-shaped structure, the vertical surface of which is fixed to the positioning column, and the horizontal surface is provided with a positioning hole that cooperates with the safety cage latch.

7. The tooling according to claim 1, characterized in that: The thickness of the pressing plates of the left movable pressing plate group (5) and the right fixed pressing plate group (6) is 8-12 mm, and the length of the pressing plates covers the entire vertical height of the safety cage U-shaped tube (101).

Images