Clamping and positioning tool for triangular rib plate of fork arm carrier of forklift

Abstract

The clamping and positioning tool comprises a backup plate, a cover plate and a datum plate, a backup plate fixing groove and a datum plate fixing groove are formed in the two sides of the lower end of the cover plate respectively, a boss is integrally formed in the middle of the side, close to the backup plate, of the datum plate, and a gap between the boss and the backup plate is matched with the thickness of the triangular rib plate. A sliding guide groove is formed in the portion, below the boss, of the datum plate, the upper end face of the sliding guide groove is parallel to the upper end face of the fork frame beam, and the side wall of the sliding guide groove is parallel to the side end face of the fork frame beam. The sliding guide grooves in the bottom of the datum plate slide on the upper end face and the side end face of the fork arm carrier beam, it is guaranteed that when the triangular rib plate and the positioning tool are fixed, the postures of the triangular rib plate and the fork arm carrier body are orthogonal, and the triangular rib plate can be welded and fixed subsequently conveniently; and meanwhile, the triangular rib plate and the positioning tool are fixed by connecting an embedded ball head through a spring in the hexagonal plunger, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning tooling, in particular to a triangular rib plate clamping and positioning tooling for a forklift cargo fork frame. Background Art

[0002] Triangular ribs are common components in the main structure of forklift forks. Their function is to enhance the rigidity and stability of the fork frame to support the safe transportation of goods. Usually, triangular ribs are welded obliquely to the side or back of the fork frame to form a triangular structure to resist various forces and pressures generated by the weight and movement of goods during transportation.

[0003] In actual applications, in order to ensure the transportation safety and stability of the fork frame, the angle of the triangular rib needs to be orthogonal to the posture of the fork frame body, and a suitable structure needs to be designed to withstand normal loads and stresses. If the angle of the triangular rib deviates from the orthogonal position, it may cause the fork frame body to lose balance during transportation, causing damage to the goods or even accidental injury.

[0004] The design form of the fork frame structure and the actual load distribution state form two postures according to the different lengths of the required contact parts between the triangular rib plate and the fork frame body: one is that the long side is parallel to the cross beam of the fork frame body, and the other is that the short side is parallel to the cross beam of the fork frame body. The best posture is that the triangular rib is orthogonal to the fork frame body. The relative position and size of the triangular rib and the fork frame body are relatively stable. In addition, in order to reduce costs, cast triangular ribs are often used in engineering. Changes in casting batches and suppliers will also cause changes in the thickness direction of the triangular ribs.

[0005] The existing technical means is to ensure the orthogonality of the triangular ribs and the fork frame body and the relative position of the triangular ribs by workers marking lines and positioning with a square ruler, which is relatively inefficient. Utility Model Content

[0006] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, one purpose of the utility model is to provide a forklift fork frame triangular rib plate clamping and positioning tooling, which ensures that the triangular rib plate is orthogonal to the fork frame body and the relative position of the triangular ribs, thereby improving the subsequent triangular rib plate welding and fixing efficiency.

[0007] According to the utility model, a forklift fork frame triangular rib clamping and positioning tooling comprises a support plate, a cover plate and a reference plate, the lower end of the cover plate is respectively provided with a support plate fixing groove and a reference plate fixing groove, the upper end of the support plate is fixed to the cover plate through the support plate fixing groove, the upper end of the reference plate is fixed to the cover plate through the reference plate fixing groove, a boss is integrally formed with the middle part of one side of the reference plate close to the support plate, the gap between the boss and the support plate is adapted to the thickness of the triangular rib plate, the bottom end of the support plate is horizontal with the bottom end of the boss, the reference plate is provided with a sliding guide groove below the boss, the upper end face of the sliding guide groove is parallel to the upper end face of the fork frame cross beam, and the side wall of the sliding guide groove is parallel to the side end face of the fork frame cross beam.

[0008] Preferably, a penetrating hexagonal plunger mounting hole is provided in the middle part of the boss near the end face of the back plate, and a spring-type hexagonal plunger is threadedly connected to the inside of the hexagonal plunger mounting hole, and the spring-type hexagonal plunger includes a columnar body, and an external thread is provided on the side of the columnar body. A hexagonal hole is provided on the end face of the columnar body away from the back plate, and a spring mounting groove is provided on the end face of the columnar body close to the back plate, and an inlaid ball head is slidably installed in the spring mounting groove, and the inlaid ball head is connected to the inner end face of the spring mounting groove through a spring.

[0009] Preferably, the upper end of the support plate and the upper end of the reference plate are fixed to the cover plate by fastening screws respectively.

[0010] Preferably, a weight-reducing groove is provided in the middle of the side wall of the back plate.

[0011] Preferably, an observation window is provided in the middle of the upper end of the cover plate.

[0012] The beneficial effects of the utility model are as follows: the sliding guide groove at the bottom of the reference plate slides on the upper end face and the side end face of the fork frame crossbeam, ensuring that when the triangular rib plate is fixed to the positioning fixture, the posture of the triangular rib plate and the fork frame body is orthogonal, which is convenient for subsequent welding and fixing of the triangular rib plate, and at the same time, the triangular rib plate and the positioning fixture are fixed by connecting the inlaid ball head through the spring inside the hexagonal plunger, and the impact-type close positioning is convenient for fixing triangular rib plates of different thicknesses, and the operation is convenient; the positioning fixture is lightweight, simple in structure, easy to use, easy to prepare, low in cost, and the material can ensure a long service life and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In the attached picture:

[0014] Figure 1 This is a structural schematic diagram of a forklift fork frame triangular rib clamping and positioning tooling proposed by the utility model;

[0015] Figure 2This is a structural schematic diagram of the backing plate portion proposed by the utility model;

[0016] Figure 3 This is a structural schematic diagram of the cover plate portion proposed by the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the reference plate portion proposed by the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the spring-type hexagonal plunger proposed by the utility model;

[0019] Figure 6 A cross-sectional view of the spring-type hexagonal plunger proposed in the utility model;

[0020] Figure 7 A schematic diagram of a use scenario of the triangular rib clamping and positioning tooling for a forklift fork frame proposed in the utility model;

[0021] Figure 8 It is a partial enlarged view of the assembly part of the triangular rib plate clamping and positioning tooling of the forklift fork frame proposed by the utility model.

[0022] In the figure: 1-back plate, 2-cover plate, 3-reference plate, 4-fastening screw, 5-spring type hexagonal plunger, 6-fork frame body, 7-A-type triangular rib plate, 8-B-type triangular rib plate, 11-back plate fixing hole, 12-weight reduction groove, 21-back plate fixing groove, 22-reference plate fixing groove, 23-connecting hole, 24-observation window, 31-sliding guide groove, 32-boss, 33-hexagonal plunger mounting hole, 34-reference plate fixing hole, 51-hexagonal hole, 52-external thread, 53-inlaid ball head, 54-spring, 61-upper end face of fork frame crossbeam, 62-side end face of fork frame crossbeam. DETAILED DESCRIPTION

[0023] Reference Figure 1 , Figure 7 and Figure 8 A forklift fork frame triangular rib clamping and positioning tooling comprises a support plate 1, a cover plate 2 and a reference plate 3. The cover plate 2 is provided with a support plate fixing groove 21 and a reference plate fixing groove 22 on both sides of the lower end thereof. The upper end of the support plate 1 is fixed to the cover plate 2 through the support plate fixing groove 21, and the upper end of the reference plate 3 is fixed to the cover plate 2 through the reference plate fixing groove 22. A boss 32 is integrally formed in the middle of one side of the reference plate 3 close to the support plate 1. The gap between the boss 32 and the support plate 1 is adapted to the thickness of the triangular rib plate. The bottom end of the support plate 1 is horizontal with the bottom end of the boss 32. The reference plate 3 is provided with a sliding guide groove 31 below the boss 32. The upper end surface of the sliding guide groove 31 is parallel to the upper end surface 61 of the fork frame crossbeam, and the side wall of the sliding guide groove 31 is parallel to the side end surface 62 of the fork frame crossbeam.

[0024] The upper end of the back plate 1 and the upper end of the reference plate 3 are fixed to the cover plate 2 by fastening screws 4 respectively.

[0025] Reference Figure 2 A weight-reducing groove 12 is provided in the middle of the side wall of the backing plate 1.

[0026] Reference Figure 3 An observation window 24 is provided in the middle of the upper end of the cover plate 2.

[0027] Reference Figure 4 , Figure 5 and Figure 6 A penetrating hexagonal plunger mounting hole 33 is provided on the end face of the middle part of the boss 32 close to the back plate 1, and a spring-type hexagonal plunger 5 is threadedly connected to the inside of the hexagonal plunger mounting hole 33. The spring-type hexagonal plunger 5 includes a columnar body, and an external thread 52 is provided on the side of the columnar body. A hexagonal hole 51 is provided on the end face of the columnar body away from the back plate 1, and a spring mounting groove is provided on the end face of the columnar body close to the back plate 1. An inlaid ball head 53 is slidably installed in the spring mounting groove, and the inlaid ball head 53 is connected to the inner end face of the spring mounting groove through a spring 54.

[0028] When in use, it is compatible with welding of two triangular rib plate postures: one is an A-type triangular rib plate 7 whose long side is parallel to the main cross beam of the fork frame, and the other is a B-type triangular rib plate 8 whose short side is parallel to the main cross beam of the fork frame.

[0029] When in use, the upper end surface of the sliding guide groove 31 of the reference plate 3 contacts the upper end surface 61 of the fork frame cross beam, and the side surface of the sliding guide groove 31 of the reference plate 3 contacts the side end surface 62 of the fork frame cross beam.

[0030] The triangular rib plate is placed in the gap of the positioning fixture from both sides of the positioning fixture, the arc surface of the triangular rib plate is tangent to the short side edge of the lower end surface of the positioning fixture cover plate 2, the triangular rib surface parallel to the lower end surface of the cover plate 2 is placed on the crossbeam of the fork frame, and the triangular rib surface perpendicular to the lower end surface of the cover plate 2 is placed on the vertical plate of the fork frame.

[0031] The triangular rib plate, whose theoretical size is 0 to +10% larger than the gap between the boss 32 and the back plate 1 , can be automatically locked by striking the embedded ball head 53 of the spring-type hexagonal plunger 5 under the action of its built-in spring 54 .

Claims

1. A forklift fork frame triangular rib clamping and positioning tool, characterized in that: The invention comprises a backing plate (1), a cover plate (2) and a reference plate (3), wherein the lower end of the cover plate (2) is provided with a backing plate fixing groove (21) and a reference plate fixing groove (22) respectively, the upper end of the backing plate (1) is fixed to the cover plate (2) through the backing plate fixing groove (21), the upper end of the reference plate (3) is fixed to the cover plate (2) through the reference plate fixing groove (22), and the reference plate (3) is integrally formed with a central part of one side close to the backing plate (1) The boss (32) has a clearance between the boss (32) and the backing plate (1) that matches the thickness of the triangular rib plate. The bottom end of the backing plate (1) is level with the bottom end of the boss (32). The reference plate (3) is located below the boss (32) and is provided with a sliding guide groove (31). The upper end surface of the sliding guide groove (31) is parallel to the upper end surface (61) of the fork frame cross beam. The side wall of the sliding guide groove (31) is parallel to the side end surface (62) of the fork frame cross beam.

2. The forklift fork frame triangular rib clamping and positioning tool according to claim 1, characterized in that: A through hexagonal plunger mounting hole (33) is provided in the middle of the boss (32) near the end face of the back plate (1), and a spring-type hexagonal plunger (5) is connected to the inside of the hexagonal plunger mounting hole (33) through a thread. The spring-type hexagonal plunger (5) comprises a columnar body, and an external thread (52) is provided on the side of the columnar body. A hexagonal hole (51) is provided on the end face of the columnar body away from the back plate (1), and a spring mounting groove is provided on the end face of the columnar body near the back plate (1). An inlaid ball head (53) is slidably installed in the spring mounting groove, and the inlaid ball head (53) is connected to the inner end face of the spring mounting groove through a spring (54).

3. The forklift fork frame triangular rib clamping and positioning tool according to claim 1, characterized in that: The upper end of the support plate (1) and the upper end of the reference plate (3) are respectively fixed to the cover plate (2) by means of fastening screws (4).

4. The forklift fork frame triangular rib clamping and positioning tool according to claim 1, characterized in that: A weight-reducing groove (12) is provided in the middle of the side wall of the backing plate (1).

5. The forklift fork frame triangular rib clamping and positioning tool according to claim 1, characterized in that: An observation window (24) is provided in the middle of the upper end of the cover plate (2).

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