Lifting fixing device

Abstract

The utility model provides a lifting fixing device which comprises a lifting workbench, a lower positioning mechanism arranged above the lifting workbench and an upper positioning mechanism arranged above the lower positioning mechanism. The lower positioning mechanism comprises a positioning frame body, first positioning assemblies arranged at the two ends of the positioning frame body and lifting driving assemblies arranged on the two sides of the positioning frame body, the lifting driving assemblies are connected with the positioning frame body, and the positioning frame body is driven by the lifting driving assemblies to do lifting motion; the positioning frame body is detachably connected with the lifting workbench. The stone cutting machine has the advantages that the stability of stone in the cutting process can be effectively improved, it is guaranteed that the stone cannot shake in the cutting process, the rated feeding amount can be cut every time the stone is cut in a reciprocating motion mode, the problem that the feeding amount is multiple times when the stone is cut at a time is solved, and the cutting efficiency is improved. The diamond tool bit on the saw blade can be prevented from being irregularly damaged in the cutting process, and therefore the service life is prolonged.

Description

Technical field

[0001] The utility model relates to the technical field of stone cutting equipment, in particular to a lifting and fixing device. [Background Technology]

[0002] As a high-end building decoration material, stone is widely used in interior and exterior decoration design, curtain wall decoration, public facilities construction, etc.

[0003] Stone processing typically requires a frame saw to be cut into thin sheets. A frame saw is a device that uses dozens to hundreds of saw blades mounted on a reciprocating saw frame to saw the rough material into rough sheets. For example, Chinese Utility Model Patent Application No. CN201220619019.0 discloses a rising hinged frame saw. However, when cutting granite and other stone blocks, existing frame saws only use a lifting device to lift the stone block upward, failing to reliably position and secure the granite block. Due to the significant impact of cutting granite and other stone blocks, the block will shake (including but not limited to left-right, front-back, and diagonal shaking) during the cutting process, making it impossible to ensure that the rated feed rate is achieved during each reciprocating motion. When the feed rate accumulates to a certain level, when the stone block does not shake, the multiple feed rates of a single cut can easily cause irregular damage to the diamond segments on the saw blades, significantly reducing their service life. In view of the above-mentioned problems, the inventor of this case conducted in-depth research on the issue, which led to the creation of this case. [Utility Model Content]

[0004] The technical problem to be solved by the present invention is to provide a lifting and fixing device to solve the problem that the existing frame saw cannot reliably position and fix stone blocks such as granite, and the stone blocks will shake due to the large impact force during the cutting process, and it cannot be guaranteed that the rated feed amount can be cut for each reciprocating motion. After accumulating to a certain extent, when the stone blocks do not shake, the feed amount of multiple cuttings at one time can easily cause irregular damage to the diamond cutter head on the saw blade, thereby greatly reducing the service life.

[0005] The utility model is implemented as follows: a lifting and fixing device includes a lifting workbench, a lower positioning mechanism provided above the lifting workbench, and an upper positioning mechanism provided above the lower positioning mechanism;

[0006] The lower positioning mechanism includes a positioning frame body, a first positioning assembly provided at both ends of the positioning frame body, and a lifting drive assembly provided on both sides of the positioning frame body. The lifting drive assembly is connected to the positioning frame body, and the positioning frame body is driven to perform lifting movement through the lifting drive assembly; the positioning frame body is detachably connected to the lifting workbench.

[0007] Furthermore, guardrails are provided on both sides of the lifting workbench, the positioning frame body is sleeved on the outside of the guardrails, and the positioning frame body and the guardrails are detachably connected.

[0008] Furthermore, it also includes a positioning pin; at least two first positioning pin holes are provided on both sides of the positioning frame body, and a second positioning pin hole is provided on the guardrails on both sides corresponding to each of the first positioning pin holes, and the positioning frame body and the guardrail are detachably connected through the positioning pin.

[0009] Furthermore, the upper positioning mechanism includes a first support frame and a second positioning assembly. The first support frame is provided with the second positioning assembly at positions corresponding to both ends of the lifting workbench, and the second positioning assembly is connected to the first support frame so as to be slidable up and down.

[0010] Furthermore, the first positioning assembly and the second positioning assembly both include a positioning plate and a telescopic cylinder, the movable ends of the telescopic cylinders at both ends are arranged to face each other, and the positioning plate is connected to the movable end of the telescopic cylinder.

[0011] Furthermore, a hinged seat is provided at the middle of both ends of each guardrail, and a driving rod is hinged on each hinged seat, and the second positioning assembly is driven to slide up and down by the driving rod.

[0012] Furthermore, the lifting drive assembly is connected to the middle position of the side of the positioning frame body through a connecting arm.

[0013] Furthermore, the lifting drive assembly includes a second support frame, a drive motor and a screw rod; the screw rod is installed in the second support frame along the vertical direction, and one end of the connecting arm is threadedly connected to the screw rod; the drive motor is arranged on the second support frame, and the output end of the drive motor is connected to one end of the screw rod.

[0014] Furthermore, an auxiliary limiting component is provided between the two ends of the two guardrails;

[0015] The auxiliary limiting assembly includes an auxiliary pressure strip, a connecting rod and a nut piece; a number of clamping rings are provided at both ends of the guardrail from bottom to top, one end of the connecting rod has a hook mounted on the clamping ring, and the other end of the connecting rod passes through the auxiliary pressure strip and is threadedly connected to the nut piece.

[0016] By adopting the technical solution of the utility model, at least the following beneficial effects are achieved:

[0017] 1. By arranging a lower positioning mechanism above the lifting workbench and an upper positioning mechanism above the lower positioning mechanism, when the upper part of the stone is cut, the lower positioning mechanism can be used to position and fix the middle part of the stone, so that the stone will not shake during the cutting process; and when the middle and lower parts of the stone are cut, the upper positioning mechanism can be used to position and fix the upper part of the stone, so that the stone will not shake during the cutting process; therefore, the technical solution of the utility model can effectively improve the stability of the stone during the cutting process, ensuring that the stone is stable during the cutting process. The saw blade will not shake during the cutting process, so the rated feed amount can be cut each time the reciprocating motion is cut, and the problem of cutting multiple feed amounts in one time will not occur. The diamond cutter head on the saw blade can be avoided from being irregularly damaged during the cutting process, thereby improving the service life. At the same time, the positioning frame body of the lower positioning mechanism and the lifting workbench are detachably connected together. When the lower positioning mechanism is used to position and fix the stone, the lower positioning mechanism and the lifting workbench can be kept rising and falling synchronously. When the lower positioning mechanism is not used to position and fix the stone, the positioning frame body can be separated from the lifting workbench, which is very convenient to use.

[0018] 2. By hingedly connecting a driving rod to the middle of both ends of each guardrail, the driving rod is directly used to provide the required power to the second positioning assembly, without the need to additionally equip the second positioning assembly with a power mechanism, which can effectively reduce costs.

[0019] 3. By equipping the two ends of the two guardrails with auxiliary limit components, the auxiliary limit components can be well utilized to limit the two ends of the stone on the lifting workbench, thereby further improving the stability of the stone; at the same time, multiple clamping rings are provided at both ends of the guardrails from bottom to top, and the connecting rod of the auxiliary limit component is detachably connected with the clamping ring by the clamping hook, which can very conveniently adjust the position of the auxiliary limit component, thereby realizing the limit fixation of the stone at different height positions.

Brief Description of the Drawings

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a structural diagram of a lifting and fixing device of the utility model when the lower positioning mechanism is detachably connected to the lifting workbench;

[0022] Figure 2 This is a structural diagram of a lifting and fixing device of the utility model when the upper positioning mechanism is used to position the stone;

[0023] Figure 3 It is a specific structural diagram of the upper and lower positioning mechanisms of the utility model;

[0024] Figure 4It is a specific structural diagram of the lifting workbench and the lifting platform in the utility model.

[0025] Description of reference numerals:

[0026] Lifting work platform 1, guardrail 11, second positioning pin hole 111, hinge seat 12, drive rod 13, snap ring 14;

[0027] Lower positioning mechanism 2, positioning frame body 21, first positioning pin hole 211, first positioning assembly 22, lifting drive assembly 23, second support frame 231, drive motor 232, screw rod 233, connecting arm 24;

[0028] Upper positioning mechanism 3, first support frame 31, second positioning assembly 32;

[0029] Positioning pin 4;

[0030] Positioning plate 51, telescopic cylinder 52, guide rod 53;

[0031] Auxiliary limiting assembly 6, auxiliary pressure strip 61, connecting rod 62, hook 621, nut 63. [Specific implementation method]

[0032] In order to better understand the technical solution of the present invention, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0033] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of these embodiments and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. In addition, the terms "first," "second," and the like are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features defined as "first," "second," and the like may explicitly or implicitly include one or more of such features.

[0034] See also Figures 1 to 4 As shown, a preferred embodiment of a lifting and fixing device of the present invention comprises a lifting work platform 1, a lower positioning mechanism 2 provided above the lifting work platform 1, and an upper positioning mechanism 3 provided above the lower positioning mechanism 2, wherein the lifting work platform 1 is used to carry stone (such as granite and other stone blocks) and drive the stone to be lifted and lowered, the lower positioning mechanism 2 is used to position and fix the middle part of the stone, and the upper positioning mechanism 3 is used to position and fix the upper part of the stone;

[0035] The lower positioning mechanism 2 includes a positioning frame body 21, a first positioning assembly 22 provided at both ends of the positioning frame body 21, and a lifting drive assembly 23 provided on both sides of the positioning frame body 21. The lifting drive assembly 23 is connected to the positioning frame body 21, and the positioning frame body 21 is driven to perform lifting movements through the lifting drive assembly 23; the positioning frame body 21 is detachably connected to the lifting workbench 1. During specific use, when it is necessary to use the lower positioning mechanism 2 to position and fix the stone, the positioning frame body 21 needs to be connected to the lifting workbench 1 so that the entire lower positioning mechanism 2 can keep synchronous lifting with the lifting workbench 1; and when it is not necessary to use the lower positioning mechanism 2 to position and fix the stone, the positioning frame body 21 needs to be disassembled and separated from the lifting workbench 1.

[0036] The utility model sets a lower positioning mechanism 2 above the lifting workbench 1, and sets an upper positioning mechanism 3 above the lower positioning mechanism 2, so that when the upper part of the stone is cut, the lower positioning mechanism 2 can be used to position and fix the middle part of the stone, so that the stone will not shake during the cutting process; and when the middle and lower parts of the stone are cut, the upper positioning mechanism 3 can be used to position and fix the upper part of the stone, so that the stone will not shake during the cutting process; therefore, the technical solution of the utility model can effectively improve the stability of the stone during the cutting process, ensuring that the stone is cut smoothly during the cutting process. It will not shake, so the rated feed amount can be cut each time the reciprocating motion is cut, and the problem of cutting multiple feed amounts at one time will not occur. The diamond cutter head on the saw blade can be avoided from being irregularly damaged during the cutting process, thereby improving the service life; at the same time, the positioning frame body 21 of the lower positioning mechanism 2 is detachably connected to the lifting workbench 1. When the lower positioning mechanism 2 is used to position and fix the stone, the lower positioning mechanism 2 and the lifting workbench 1 can be kept synchronously lifted and lowered. When the lower positioning mechanism 2 does not position and fix the stone, the positioning frame body 21 can be separated from the lifting workbench 1, which is very convenient to use.

[0037] In some embodiments of the present invention, guardrails 11 are provided on both sides of the lifting work platform 1 to block the two sides of the stone by using the guardrails 11 on both sides, while the two ends of the lifting work platform 1 are open to facilitate the entry and exit of the stone into and out of the lifting work platform 1; the positioning frame body 21 is sleeved on the outside of the guardrail 11, and the positioning frame body 21 is detachably connected to the guardrail 11, so that the lower positioning mechanism 2 can position and fix the middle part of the stone.

[0038] As a specific embodiment of the present invention, in order to facilitate the actual disassembly and assembly operations, the lifting and fixing device also includes a positioning pin 4; at least two first positioning pin holes 211 are provided on both sides of the positioning frame body 21, and a second positioning pin hole 111 is provided on the guardrail 11 on both sides corresponding to each of the first positioning pin holes 211, and the positioning frame body 21 and the guardrail 11 are detachably connected via the positioning pin 4; when the present invention is specifically implemented, the first positioning pin hole 211 can be a long strip pin hole, and the second positioning pin hole 111 can be a circular pin hole, which can make it easier to insert the positioning pin 4 into the first positioning pin hole 211 and the second positioning pin hole 111. Of course, the above is only a specific embodiment of the present invention, but the present invention is not limited thereto. When implemented, other methods can also be used to detachably connect the positioning frame body 21 and the guardrail 11.

[0039] In some embodiments of the present invention, please refer to Figure 3 As shown, the upper positioning mechanism 3 includes a first support frame 31 and a second positioning assembly 32. The first support frame 31 is provided with the second positioning assembly 32 at positions corresponding to both ends of the lifting workbench 1, and the second positioning assembly 32 is slidably connected to the first support frame 31. Since the stone needs to be slowly lifted upward during the cutting process, the second positioning assembly 32 is slidably connected to the first support frame 31 so that the second positioning assembly 32 can maintain the position and fixation of the stone during the cutting process.

[0040] As a specific embodiment of the present invention, the first positioning assembly 22 and the second positioning assembly 32 each include a positioning plate 51 and a telescopic cylinder 52. The movable ends of the telescopic cylinders 52 at both ends are arranged to face each other. The positioning plate 51 is connected to the movable ends of the telescopic cylinders 52, so that the telescopic cylinders 52 drive the positioning plate 51 to tighten the stone, thereby achieving the positioning and fixing of the two ends of the stone. In the specific implementation of the present invention, the telescopic cylinders 52 can be telescopic oil cylinders. At the same time, the telescopic cylinders 52 can be positioned in the middle position, and guide rods 53 are provided on both sides of the telescopic cylinders 52 to enable the positioning plate 51 to more reliably tighten the stone.

[0041] In some embodiments of the present invention, a hinge seat 12 is provided at the middle of both ends of each of the guardrails 11, and a drive rod 13 is hinged on each of the hinge seats 12, and the drive rod 13 drives the second positioning assembly 32 to slide up and down. During the specific implementation of the present invention, when it is necessary to use the second positioning assembly 32 to position and fix the stone, the drive rod 13 can be rotated downward to make the drive rod horizontal, and at the same time, the drive rod 13 is located below the second positioning assembly 32, so that the drive rod 13 can contact the second positioning assembly 32 and lift the second positioning assembly 32 upward in the process of rising with the lifting platform 1; and when it is not necessary to use the second positioning assembly 32 to position and fix the stone, the drive rod 13 can be rotated upward to make the drive rod 13 vertical, so as to avoid the drive rod 13 affecting the lifting of the lifting platform 1.

[0042] Because the second positioning assembly 32 needs to be powered to slide up and down, the utility model hinges a driving rod 13 at the middle of both ends of each guardrail 11, and directly uses the driving rod 13 to provide the required power to the second positioning assembly 32, without the need to additionally equip the second positioning assembly 32 with a power mechanism, which can effectively reduce costs.

[0043] As a specific embodiment of the present invention, the lifting drive assembly 23 is connected to the middle position of the side of the positioning frame body 21 through a connecting arm 24, so that the two ends of the positioning frame body 21 can better maintain balance.

[0044] In some embodiments of the present invention, please refer to Figure 3 As shown, the lifting drive assembly 23 includes a second support frame 231, a driving motor 232 and a screw rod 233; the screw rod 233 is installed in the second support frame 23 along the vertical direction, and one end of the connecting arm 24 is threadedly connected to the screw rod 233, so that the screw rod 233 can drive the connecting arm 24 to perform lifting movement during the rotation process, and then drive the entire lower positioning mechanism 2 to perform lifting movement through the connecting arm 24; the driving motor 232 is arranged on the second support frame 231, and the output end of the driving motor 232 is connected to one end of the screw rod 233. More specifically, the driving motor 232 can be arranged at the top position of the second support frame 231, and the output end of the driving motor 232 is downward and connected to one end of the screw rod 233.

[0045] In some embodiments of the present invention, please refer to Figure 4 As shown, an auxiliary limiting assembly 6 is further provided between the two ends of the two guardrails 11, so as to limit the two ends of the stone on the lifting workbench 1 by using the auxiliary limiting assembly 6;

[0046] The auxiliary limiting assembly 6 includes an auxiliary pressure strip 61, a connecting rod 62, and a nut 63. The nut 63 can be a butterfly nut to facilitate the rotation operation. A plurality of snap rings 14 are provided at both ends of the guardrail 11 from bottom to top. One end of the connecting rod 62 has a hook 621 that is clamped on the snap ring 14. The other end of the connecting rod 62 passes through the auxiliary pressure strip 61 and is threadedly connected to the nut 63. When the auxiliary limiting assembly 6 of the present utility model is used, after placing the stone on the lifting workbench 1, the auxiliary pressure strip 61 can be used to block the end of the stone, and the hook 621 of the connecting rod 62 can be clamped on the snap ring 14. The nut 63 at the other end of the connecting rod 62 is locked inward, so that the auxiliary pressure strip 61 presses the end of the stone.

[0047] The present invention is equipped with auxiliary limiting components 6 between the two ends of the two guardrails 11, which can make good use of the auxiliary limiting components 6 to limit the two ends of the stone on the lifting workbench 1, thereby further improving the stability of the stone; at the same time, multiple clamping rings 14 are provided at both ends of the guardrail 11 from bottom to top, and the connecting rod 62 of the auxiliary limiting component 6 is detachably connected to the clamping ring 14 by a hook 621, which can very conveniently adjust the position of the auxiliary limiting component 6, thereby realizing the limiting and fixing of different height positions of the stone.

[0048] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A lifting and fixing device, characterized in that: It includes a lifting work platform, a lower positioning mechanism arranged above the lifting work platform, and an upper positioning mechanism arranged above the lower positioning mechanism; The lower positioning mechanism includes a positioning frame body, a first positioning assembly provided at both ends of the positioning frame body, and a lifting drive assembly provided on both sides of the positioning frame body. The lifting drive assembly is connected to the positioning frame body, and the positioning frame body is driven to perform lifting movement through the lifting drive assembly; the positioning frame body is detachably connected to the lifting workbench.

2. A lifting and fixing device according to claim 1, characterized in that: Guardrails are provided on both sides of the lifting workbench. The positioning frame body is sleeved on the outside of the guardrails, and the positioning frame body and the guardrails are detachably connected.

3. A lifting and fixing device according to claim 2, characterized in that: It also includes a positioning pin; at least two first positioning pin holes are provided on both sides of the positioning frame body, and a second positioning pin hole is provided on the guardrails on both sides corresponding to each of the first positioning pin holes, and the positioning frame body and the guardrail are detachably connected through the positioning pin.

4. The lifting and fixing device according to claim 2, characterized in that: The upper positioning mechanism includes a first support frame and a second positioning assembly. The first support frame is provided with the second positioning assembly at positions corresponding to both ends of the lifting workbench, and the second positioning assembly is connected to the first support frame so as to be slidable up and down.

5. The lifting and fixing device according to claim 4, characterized in that: The first positioning assembly and the second positioning assembly both include a positioning plate and a telescopic cylinder. The movable ends of the telescopic cylinders at both ends are arranged to face each other, and the positioning plates are connected to the movable ends of the telescopic cylinders.

6. The lifting and fixing device according to claim 4, characterized in that: A hinged seat is provided at the middle of both ends of each guardrail, and a driving rod is hinged on each hinged seat, and the second positioning component is driven to slide up and down by the driving rod.

7. The lifting and fixing device according to claim 1, characterized in that: The lifting drive assembly is connected to the middle position of the side of the positioning frame body through a connecting arm.

8. The lifting and fixing device according to claim 7, characterized in that: The lifting drive assembly includes a second support frame, a drive motor and a screw rod; the screw rod is installed in the second support frame along the vertical direction, and one end of the connecting arm is threadedly connected to the screw rod; the drive motor is arranged on the second support frame, and the output end of the drive motor is connected to one end of the screw rod.

9. The lifting and fixing device according to claim 2, characterized in that: An auxiliary limiting component is also provided between the two ends of the two guardrails; The auxiliary limiting assembly includes an auxiliary pressure strip, a connecting rod and a nut piece; a number of clamping rings are provided at both ends of the guardrail from bottom to top, one end of the connecting rod has a hook mounted on the clamping ring, and the other end of the connecting rod passes through the auxiliary pressure strip and is threadedly connected to the nut piece.

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