Pneumatic clamping tool
By introducing pneumatic clamping tools and sliding table cylinders into the clamp, the problems of unstable clamping force and difficult operation of existing clamping fixtures are solved, and vertical stability of clamping force and improved operating efficiency are achieved.
Patent Information
- Application Number
- CN202420179367.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-24
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-01-24
AI Technical Summary
When existing fixtures clamp the product, the clamping force is unstable, which can easily lead to product slippage or insufficient clamping force, and it is difficult to operate, high labor intensity, and affect operating efficiency.
The pneumatic clamping tool is used to adjust the clamping force through the sliding cylinder to ensure that the clamping force is perpendicular to the product surface and the size is controllable. Pneumatic components are used instead of manual clamping to reduce the difficulty of operation and labor intensity.
It achieves stable clamping force, perpendicular to the product surface, adapts to tolerances of different products, reduces product damage rate and operator labor intensity, and improves operating efficiency.
Smart Images
Figure CN222449909U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a pneumatic clamping tool. Background Art
[0002] A fixture is a mechanical device used to fix and position workpieces in industrial production. In particular, in the process of transporting small batches of products, it is often necessary to clamp and fix the products to prevent them from falling and being damaged during the transportation process. At present, most common handling fixtures on the market use the principle of levers to reduce the difficulty of gripping products in order to save effort. Figure 1-3 Disclosed is a manually operated clamping pliers, which comprises a lower jaw 1, an upper jaw 3 connected to the lower jaw 1 through a spring 2, a seat body 4 fixedly connected to the lower jaw 1, a pressure handle 7 installed on the seat body 4 through a support rod 5 and a pressure transfer block 6 and driving the upper jaw 3 to approach or move away from the lower jaw 1, the pressure transfer block 6 cooperates with the upper jaw 3 through a rolling bearing 8, a first fulcrum 9 is formed at the connection between the support rod 5 and the seat body 4, a second fulcrum 10 is formed at the connection between the pressure handle 7 and the support rod 5 and the pressure transfer block 6, and a first hinge point 11 is formed at the common connection between the pressure handle 7 and the support rod 5 and the pressure transfer block 6. During use, the pressure handle 7 is moved downward by the gripping force of manual grasping, and at the same time, the first hinge point 11 is moved to the left under the limiting action of the support rod 5, and a leftward thrust is generated, and the thrust generates downward pressure through the second fulcrum 10, and the leftward movement of the first hinge point 11 is converted into a downward movement of the rolling bearing 8 through the second fulcrum 10. In this way, the upper clamping jaw 3 is moved downward by manual gripping force, and the lower clamping jaw 1 remains stationary, thereby generating a clamping action. The gripping force is converted into a force that moves the upper clamping jaw 3 downward through the lever principle, thereby clamping the product.
[0003] In the above structure, the purpose of labor saving is achieved by applying a lever to the clamping mechanism. In order to facilitate the smooth sliding of the support rod 5, a large matching gap 12 is left between the sliding parts of the clamping mechanism. Therefore, in the clamped state, there is a large angle between the upper clamping jaw 3 and the lower clamping jaw 1, and the clamping force acts obliquely on the clamping surface of the product, and the product is at risk of slipping. Due to the characteristics of the lever structure, it can only be clamped to a fixed position each time to ensure the clamping of the product. When there is a tolerance in the product, the clamping force will change, resulting in inconsistent clamping force on the product, which may crush the product or cause the product to fall off due to insufficient clamping force. In order to ensure sufficient clamping force, the position of the first fulcrum 9 needs to be adjusted frequently to adjust the distance between the clamps. The adjustment difficulty of the clamp is relatively large, resulting in insufficient production efficiency of the product. In this case, it is still difficult to ensure constant clamping force. The product is easily damaged during the clamping and handling process, resulting in an increase in the defective rate of the product. In addition, the above clamping mechanism is manually operated, and the labor intensity of the operator is relatively high. After long-term use, the operator's tiger's mouth and palm will feel painful, which will affect the work efficiency. Utility Model Content
[0004] Based on this, it is necessary to provide a pneumatic clamping tool in which the clamping force is perpendicular to the product clamping surface, the clamping force is controllable, the product clamping is stable and not easily damaged, the operation difficulty is low and the operation efficiency is high to address the above shortcomings.
[0005] A pneumatic clamping tool comprises a first clamping jaw and a second clamping jaw which are arranged opposite to each other, a first handle which is located in the same plane as the first clamping jaw and fixedly connected to a side surface of the first clamping jaw, and a sliding cylinder which is located between the first clamping jaw and the second clamping jaw, wherein the second clamping jaw is located below the first clamping jaw, and a gripping area for gripping a product is formed between the second clamping jaw and the first clamping jaw, wherein the sliding cylinder comprises a cylinder body which is fixedly connected to the upper surface of the second clamping jaw and communicated with an external air pressure device, and a sliding rod which is slidably inserted in the cylinder body and fixedly connected to the lower surface of the first clamping jaw, wherein the lower surface of the first clamping jaw and the upper surface of the second clamping jaw are respectively perpendicular to the height direction of the cylinder body, and when the air pressure in the cylinder body changes, the sliding rod drives the first clamping jaw to move so as to adjust the height of the gripping area.
[0006] In one embodiment, the pneumatic clamping tool also includes a button valve located below the first handle and fixedly connected to the first handle, an air pipe fixed to the lower surface of the first handle and respectively connected to the button valve and an external air pressure device, and the button valve is connected to the cylinder body.
[0007] In one embodiment, the sliding cylinder also includes an intake speed regulating valve and an exhaust speed regulating valve located on the outside of the cylinder body and connected to the inner cavity of the cylinder body, and the button valve includes a valve body with a hollow structure fixed on the first handle, a first air nozzle connected to the inner cavity of the valve body and an external air pressure device respectively, a second air nozzle connected to the inner cavity of the valve body and the intake speed regulating valve respectively, and a third air nozzle connected to the inner cavity of the valve body and the exhaust speed regulating valve respectively.
[0008] In one of the embodiments, a mounting hole is provided on the first handle and passes through the upper surface and the lower surface of the first handle, a fixing thread is provided on the outer surface of the valve body, and the valve body passes through the mounting hole from under the first handle and is fixed to the first handle by a nut.
[0009] In one embodiment, the pneumatic clamping tool also includes a second handle located below the first handle and fixedly connected to the first handle, the length of the second handle is smaller than the length of the first handle, and the end of the second handle facing away from the first clamping jaw is flush with the end of the first handle facing away from the first clamping jaw, and the upper surface of the second handle is provided with a limiting groove for passing the air pipe.
[0010] In one embodiment, a first mounting groove is formed on the lower surface of the first clamp adjacent to the first handle, a second mounting groove corresponding to the first mounting groove is formed on the upper surface of the second clamp, the cylinder body is embedded in the second mounting groove and is connected to the second clamp screw, a mounting plate is fixed to the top of the sliding rod, the mounting plate is embedded in the first mounting groove and is connected to the first clamp screw.
[0011] In one embodiment, the first clamping jaw and the first handle are integrally formed.
[0012] In one embodiment, the first clamping jaw and the second clamping jaw are respectively in a C-shaped structure.
[0013] The pneumatic clamping tool of the utility model can adjust the height of the clamping area by adjusting the air pressure in the cylinder body of the slide cylinder to achieve the purpose of controlling the clamping force. There is no need to frequently adjust the fulcrum position, and at the same time it can accommodate larger product tolerances, so that the clamping force can be kept in a relatively stable range. The clamping pressure each time is stable and uniform, which realizes the controllable clamping force and ensures that the product is clamped stably and not easily damaged; the lower surface of the first clamping jaw and the upper surface of the second clamping jaw are respectively perpendicular to the height direction of the cylinder body, so that the clamping force on the product is always perpendicular to the clamping surface of the product, and the slide rod is guided by the cylinder body of the slide cylinder to ensure the smooth movement of the first clamping jaw and the second clamping jaw, so as to avoid the problem of the product falling off due to the angle between the clamping force between the clamping jaw and the upper and lower surfaces of the product, thereby ensuring the stable clamping of the product; replacing manual clamping of products, reducing the labor intensity of personnel, and being conducive to improving ergonomics and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of an existing clamping mechanism;
[0015] Figure 2 is a side view of an existing clamping mechanism;
[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of an existing clamping mechanism;
[0017] Figure 4 It is a structural schematic diagram of a pneumatic clamping tool in one embodiment of the utility model;
[0018] Figure 5 It is a schematic diagram of the exploded structure of a pneumatic gripping tool in one embodiment of the utility model;
[0019] Figure 6 This is a schematic diagram of the structure in which the first clamping jaw is connected to the first handle in one embodiment of the utility model;
[0020] Figure 7This is a structural schematic diagram of a button valve in one embodiment of the utility model;
[0021] Figure 8 This is a schematic diagram of the structure of the connection between the first clamping claw, the first handle and the button valve in one embodiment of the utility model;
[0022] Fig. 9 This is a structural schematic diagram of a slide mechanism in one embodiment of the utility model;
[0023] Fig.10 This is a schematic diagram of the structure of the second clamping jaw in one embodiment of the utility model;
[0024] Fig.11 It is a schematic structural diagram of the second handle in one embodiment of the utility model. DETAILED DESCRIPTION
[0025] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0026] In view of the problem that there is a large movable gap between the upper and lower jaws of the traditional clamping mechanism, which leads to a large angle between the upper and lower jaws, and the first fulcrum position needs to be adjusted frequently to ensure that the distance between the jaws can cover the product tolerance band, so as to stably and controllably clamp the product. The utility model utilizes the characteristics of the smooth movement of the slide cylinder, and makes the clamping surfaces of the two jaws perpendicular to the height extension direction of the slide cylinder, so that the clamping forces of the two jaws are in the same direction, and there is no problem of product slippage during transportation caused by the angle. Due to the manufacturing tolerance of the gaskets used to block between products, there is a height tolerance of about 1mm after the products are stacked into groups. The manual lever type of the original technology will cause the product clamping force to fluctuate due to the change in product height. The utility model drives the jaws to move through the slide cylinder to adjust the clamping force of the tool on the product, avoiding the problem of clamping force fluctuation caused by product tolerance, so that the clamping force of each product clamping is constant. In addition, the use of pneumatic components instead of the lever principle reduces the labor intensity of personnel and is conducive to improving work efficiency.
[0027] For details, please combine Figure 4 and Figure 5The pneumatic clamping tool of this embodiment includes a first clamping jaw 100 and a second clamping jaw 200 arranged opposite to each other, a first handle 300 located in the same plane as the first clamping jaw 100 and fixedly connected to a side surface of the first clamping jaw 100, and a sliding cylinder 400 located between the first clamping jaw 100 and the second clamping jaw 200. The first clamping jaw 100 and the second clamping jaw 200 are used to jointly grasp the product to provide a grasping portion for the product; the first handle 300 is used to provide a handle for the entire pneumatic clamping tool so that the operator can grasp and move the pneumatic clamping tool; the sliding cylinder 400 is used to provide a driving force for the relative movement of the first clamping jaw 100 and the second clamping jaw 200, and through the constraint of the sliding rod by the cylinder body of the sliding cylinder 400 itself, to ensure that the clamping forces of the first clamping jaw 100 and the second clamping jaw 200 are in the same direction. The second clamping jaw 200 is located below the first clamping jaw 100, and a gripping area 500 for clamping the product is formed between the second clamping jaw 200 and the first clamping jaw 100. The slide cylinder 400 includes a cylinder body 410 fixedly connected to the upper surface of the second clamping jaw 200 and connected to the external air pressure device, and a slide rod 420 slidably inserted in the cylinder body 410 and fixedly connected to the lower surface of the first clamping jaw 100. One end of the slide rod 420 located in the inner cavity of the cylinder body 410 is sealed with the inner wall of the cylinder body 410 to ensure the stability of the air pressure in the cylinder body 410. The lower surface of the first clamping jaw 100 and the upper surface of the second clamping jaw 200 are respectively perpendicular to the height direction of the cylinder body 410. When the air pressure in the cylinder body 410 changes, the slide rod 420 drives the first clamping jaw 100 to move to adjust the height of the gripping area 500. Preferably, the external air pressure device can be an air pump. During the product clamping process, firstly, compressed gas is introduced into the inner cavity of the cylinder body 410 of the slide cylinder 400 through an external air pressure device, so that the air pressure in the inner cavity of the cylinder body 410 increases. During this process, the slide bar 420 drives the first clamping jaw 100 to move away from the second clamping jaw 200 under the action of the air pressure in the inner cavity of the cylinder body 410, so that the height of the clamping area 500 increases, so as to place the product to be clamped in the clamping area 500. Subsequently, compressed gas is extracted from the inner cavity of the cylinder body 410 through an external air pressure device, so that the air pressure in the inner cavity of the cylinder decreases. That is, the slide bar 420 drives the first clamping jaw 100 to move toward the second clamping jaw 200 under the action of the air pressure in the inner cavity of the cylinder body 410, so that the height of the clamping area 500 decreases, until the lower surface of the first clamping jaw 100 and the upper surface of the second clamping jaw 200 respectively abut against the outer surface of the product, thereby clamping the product.
[0028] It should be noted that, in the present embodiment, the slide cylinder 400 is arranged below the first handle 300, and the end of the slide rod 420 of the slide cylinder 400 is fixedly connected to the lower surface of the first clamp 100, thereby realizing the downward shift of the center of gravity of the pneumatic clamping tool. That is, when the product is clamped on the pneumatic clamping tool, the center of gravity of the product and the pneumatic clamping tool is located below the first handle 300, thereby making the product more stable during transportation, eliminating the need for extra effort to maintain the balance of the product, and reducing the difficulty of product transportation.
[0029] In one embodiment, the first clamping jaw 100 and the second clamping jaw 200 are respectively C-shaped structures. The first clamping jaw 100 includes two first transverse portions 110 arranged opposite to each other and a first vertical portion 120 connecting the two first transverse portions 110. The first vertical portion 120 is fixedly connected to the first handle 300, and the lower surface of the first vertical portion 120 is fixedly connected to the slide rod 420 of the slide cylinder 400. The second clamping jaw 200 includes two second transverse portions 210 arranged opposite to each other and a second vertical portion 220 connecting the two second transverse portions 210. The upper surface of the second vertical portion 220 is fixedly connected to the cylinder body 410 of the slide cylinder 400. When the pneumatic clamping tool grasps the product, the lower surface of the two first transverse portions 110 of the first clamping jaw 100 and the upper surface of the two second transverse portions 210 of the second clamping jaw 200 are respectively in contact with the surface of the product to achieve grasping of the product. In addition, the first handle 300 is a strip-shaped structure, please refer to Figure 6 In this embodiment, the first clamping jaw 100 and the first handle 300 are integrally formed. In other embodiments, when the first clamping jaw 100 and the first handle 300 are respectively made of metal materials, the first clamping jaw 100 and the first handle 300 can also be fixed by welding.
[0030] Please combine Figure 5 , Figure 6 as well as Fig.10 In one embodiment, a first mounting groove 130 is formed on the lower surface of the first clamping jaw 100 adjacent to the first handle 300, and a second mounting groove 230 corresponding to the first mounting groove 130 is formed on the upper surface of the second clamping jaw 200. The cylinder body 410 is embedded in the second mounting groove 230 and is screwed to the second clamping jaw 200. A mounting plate 430 is fixed to the top of the sliding rod 420, and the mounting plate 430 is embedded in the first mounting groove 130 and is screwed to the first clamping jaw 100. Preferably, the first mounting groove 130 is opened on the lower surface of the first vertical portion 120, and the second mounting groove 230 is opened on the upper surface of the second vertical portion 220. By setting the first mounting groove 130 and the second mounting groove 230, the pre-positioning of the slide cylinder 400 when connected with the first clamp 100 and the second clamp 200 can be achieved, so as to prevent the problem of difficulty in clamping the pneumatic clamping tool caused by the movement of the first clamp 100 and the second clamp 200 relative to the slide cylinder 400 when the slide cylinder 400 is assembled with the first clamp 100 and the second clamp 200.
[0031] Please combine Figure 4 , Figure 5 , Figure 7 as well as Figure 8 The pneumatic gripping tool further includes a button valve 600 located below the first handle 300 and fixedly connected to the first handle 300, and an air pipe 700 fixed to the lower surface of the first handle 300 and connected to the button valve 600 and the external air pressure device respectively. The button valve 600 is connected to the cylinder body 410. Preferably, in this embodiment, the button valve 600 is a manual button valve 600, which is a pneumatic switch element with a manually operable button control handle, which serves as a switch for controlling gas delivery in a pneumatic device. In this embodiment, the button valve 600 is used to realize the on-off of the air path between the slide cylinder 400 and the external air pressure device, and it can be any commercially available button valve 600 of a size that is compatible with the size of the pneumatic gripping tool of this embodiment.
[0032] Please combine Figure 4 , Figure 5 , Figure 7 as well as Fig. 9 In one embodiment, the slide cylinder 400 also includes an intake speed regulating valve 440 and an exhaust speed regulating valve 450 located on the outside of the cylinder body 410 and connected to the inner cavity of the cylinder body 410. The button valve 600 includes a hollow structure valve body 610 fixed on the first handle 300, a first air nozzle 620 connected to the inner cavity of the valve body 610 and an external air pressure device respectively, a second air nozzle 630 connected to the inner cavity of the valve body 610 and the intake speed regulating valve 440 respectively, and a third air nozzle 640 connected to the inner cavity of the valve body 610 and the exhaust speed regulating valve 450 respectively. By setting the air intake speed regulating valve 440 and the exhaust speed regulating valve 450, the air intake speed and the exhaust speed in the cylinder 410 can be controlled, and then the clamping and releasing speeds of the first clamping jaw 100 and the second clamping jaw 200 can be adjusted, so that the clamping speed of the first clamping jaw 100 and the second clamping jaw 200 is slower and the releasing speed is faster, so as to avoid product damage caused by impacting the product when clamping too quickly, while maintaining a relatively stable production efficiency.
[0033] In one embodiment, the first handle 300 is provided with a mounting hole 310 that passes through the upper surface and the lower surface of the first handle 300, and the outer surface of the valve body 610 is provided with a fixing thread, and the valve body 610 passes through the mounting hole 310 from the bottom of the first handle 300 and is fixed to the first handle 300 by a nut. Specifically, during the installation of the button valve 600, the valve body 610 of the button valve 600 is first passed through the mounting hole 310 from the bottom of the first handle 300, so that the upper part of the valve body 610 passes through the mounting hole 310, and then the nut located above the first handle 300 cooperates with the fixing thread on the outer surface of the valve body 610, and the nut is screwed onto the valve body 610, and the button valve 600 is fixedly installed on the first handle 300 through the constraint of the nut.
[0034] Please combine Figure 5 and Fig.11 In one embodiment, the pneumatic gripping tool further includes a second handle 800 located below the first handle 300 and fixedly connected to the first handle 300. The length of the second handle 800 is less than that of the first handle 300, and the end of the second handle 800 facing away from the first clamping jaw 100 is flush with the end of the first handle 300 facing away from the first clamping jaw 100. A limiting groove 810 for passing the air pipe 700 is provided on the upper surface of the second handle 800. By providing the second handle 800, the air pipe 700 can be fixed, and the air pipe 700 can be prevented from being entangled or bent and loosened during use, thereby preventing the first clamping jaw 100 and the second clamping jaw 200 from loosening, so as to ensure stable gripping of the product. In other embodiments, the second handle 800 includes two limiting plates arranged opposite to each other, and a limiting groove 810 for clamping the air pipe is formed between the two limiting plates.
[0035] During the clamping process of the pneumatic clamping tool, first take the first clamping jaw 100, connect the three air nozzles of the button valve 600 to the valve body 610 respectively, pass the valve body 610 of the button valve 600 through the mounting hole 310 from under the first handle 300, adjust the direction of the button valve 600 so that the second air nozzle 630 and the third air nozzle 640 are facing the direction of the first clamping jaw 100, and fix the button valve 600 by tightening the nut.
[0036] Next, take the slide cylinder 400, use the air intake speed regulating valve 440 and the exhaust speed regulating valve 450 at the air path access of the slide cylinder 400 and fix them, turn the slide rod 420 of the slide cylinder 400 upward, make the mounting plate 430 at the end of the slide rod 420 embed into the first mounting groove 130 and fix it with the first clamping jaw 100 by screws, and the lower surface of the mounting plate 430 must be kept flat and smooth without dirt, otherwise it will affect the parallel clamping after assembly. After connecting the air pipe 700 to the first air nozzle 620 of the button valve 600, try to ventilate, check whether the movement of the slide cylinder 400 is smooth, whether the opening and closing of the button valve 600 is smooth, and adjust the pipeline in time.
[0037] Then take the second clamp 200. The processing of the second clamp 200 must meet the parallelism of the installation contact surface (the upper surface of the second clamp 200) and the clamping contact surface, that is, to ensure that after the product is clamped, the outer surface of the product is completely fitted with the upper surface of the second clamp 200 to ensure the assembly effect. After cleaning the upper surface of the second clamp 200, the cylinder body 410 of the slide cylinder 400 is embedded in the second installation groove 230 of the second clamp 200, and the second clamp 200 and the cylinder body 410 are fixed by screws. In this step, ventilation and opening and closing tests are required, and at the same time, the clamping contact surfaces of the first clamp 100 and the second clamp 200 are measured to be parallel. The open and closed states are measured several times, and the components are adjusted to parallel in time. After adjusting the parallelism, the clamping and release speeds are adjusted by the air intake speed regulating valve 440 and the exhaust speed regulating valve 450 of the slide cylinder 400, and the clamping speed is adjusted to be slower and the release speed is faster.
[0038] Finally, take the second handle 800, cover the second handle 800 on the trachea 700 and connect it with the first handle 300 with screws, and clamp the trachea 700 through the limiting groove 810 of the second handle 800 to prevent the trachea 700 from being entangled or bent and loosened during use, thereby causing the first clamp 100 and the second clamp 200 to loosen. After all parts are fixed, switch the cylinder action several times to confirm that the action is smooth and the pressure and speed remain stable. At this point, the pneumatic clamping tool is installed, which can solve the problem of the upper and lower clamping forces having an angle and the clamping force fluctuations due to large tolerances of the product within the travel range of the slide cylinder 400.
[0039] When the pneumatic clamping tool of the utility model is implemented, the height of the clamping area 500 can be adjusted by adjusting the air pressure in the cylinder body 410 of the slide cylinder 400 to achieve the purpose of controlling the clamping force. There is no need to frequently adjust the fulcrum position. At the same time, it can accommodate larger product tolerances, and the clamping force can be kept in a relatively stable range. The pressure of each clamping is stable and uniform, which realizes the controllable clamping force and ensures that the product is clamped stably and not easily damaged; the lower surface of the first clamping jaw 100 and the upper surface of the second clamping jaw 200 are respectively perpendicular to the height direction of the cylinder body 410, which ensures that the clamping force on the product is always perpendicular to the clamping surface of the product. The cylinder body 410 of the slide cylinder 400 guides the slide rod 420 to ensure the smooth movement of the first clamping jaw 100 and the second clamping jaw 200, and avoids the problem of the product falling off due to the angle between the clamping force between the clamping jaw and the upper and lower surfaces of the product, thereby ensuring the stable clamping of the product; replacing manual clamping of products, reducing the labor intensity of personnel, and being conducive to improving ergonomics and improving work efficiency.
[0040] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0041] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A pneumatic gripping tool, characterized in that: The invention comprises a first clamping jaw and a second clamping jaw which are arranged opposite to each other, a first handle which is located in the same plane as the first clamping jaw and fixedly connected to a side surface of the first clamping jaw, and a sliding cylinder which is located between the first clamping jaw and the second clamping jaw, wherein the second clamping jaw is located below the first clamping jaw, and a gripping area for gripping a product is formed between the second clamping jaw and the first clamping jaw, wherein the sliding cylinder comprises a cylinder body which is fixedly connected to the upper surface of the second clamping jaw and communicated with an external air pressure device, and a sliding rod which is slidably inserted in the cylinder body and fixedly connected to the lower surface of the first clamping jaw, wherein the lower surface of the first clamping jaw and the upper surface of the second clamping jaw are respectively perpendicular to the height direction of the cylinder body, and when the air pressure in the cylinder body changes, the sliding rod drives the first clamping jaw to move so as to adjust the height of the gripping area.
2. The pneumatic gripping tool according to claim 1, characterized in that: It also includes a button valve located below the first handle and fixedly connected to the first handle, and an air pipe fixed to the lower surface of the first handle and connected to the button valve and an external air pressure device respectively, wherein the button valve is connected to the cylinder body.
3. The pneumatic gripping tool according to claim 2, characterized in that: The slide cylinder also includes an intake speed regulating valve and an exhaust speed regulating valve located on the outside of the cylinder body and connected to the inner cavity of the cylinder body. The button valve includes a valve body with a hollow structure fixed on the first handle, a first air nozzle connected to the inner cavity of the valve body and an external air pressure device respectively, a second air nozzle connected to the inner cavity of the valve body and the intake speed regulating valve respectively, and a third air nozzle connected to the inner cavity of the valve body and the exhaust speed regulating valve respectively.
4. The pneumatic gripping tool according to claim 3, characterized in that: The first handle is provided with a mounting hole penetrating through the upper surface and the lower surface of the first handle, the outer surface of the valve body is provided with a fixing thread, and the valve body passes through the mounting hole from below the first handle and is fixed to the first handle by a nut.
5. The pneumatic gripping tool according to claim 2, characterized in that: It also includes a second handle located below the first handle and fixedly connected to the first handle, the length of the second handle is smaller than that of the first handle, and the end of the second handle facing away from the first clamping jaw is flush with the end of the first handle facing away from the first clamping jaw, and the upper surface of the second handle is provided with a limiting groove for passing the air pipe.
6. The pneumatic gripping tool according to claim 1, characterized in that: The lower surface of the first clamping jaw is provided with a first mounting groove adjacent to the first handle, and the upper surface of the second clamping jaw is provided with a second mounting groove corresponding to the first mounting groove, the cylinder body is embedded in the second mounting groove and is connected to the second clamping jaw screw, and a mounting plate is fixed to the top of the sliding rod, and the mounting plate is embedded in the first mounting groove and is connected to the first clamping jaw screw.
7. The pneumatic gripping tool according to claim 1, characterized in that: The first clamping jaw and the first handle are integrally formed.
8. The pneumatic gripping tool according to claim 1, characterized in that: The first clamping jaw and the second clamping jaw are respectively in a C-shaped structure.