Unpowered unilateral clamping manipulator for multi-station drawing die

Abstract

The utility model provides an unpowered single-side clamping manipulator for a multi-station drawing die. The unpowered single-side clamping manipulator comprises a nylon bracket, a clamping mechanism and a clamping mechanism, wherein the nylon bracket is provided with a clamping groove; the clamping driving channel is formed in the left side or the right side of the nylon support, and the bottom of the clamping driving channel communicates with the clamping groove. The roller holding module is arranged on one side, close to the clamping groove, in the clamping driving channel in a penetrating manner; one side of the elastic driving module is arranged on the side, away from the clamping groove, in the clamping driving channel in a penetrating mode, and the other side of the elastic driving module is arranged at the bottom of the top of the nylon support in a penetrating mode, enters the clamping driving channel and abuts against the idler wheel holding module. One-side clamping of the product is achieved without an air cylinder and other power sources, and friction cannot be generated to the product in the clamping process.

Description

Technical Field

[0001] The utility model relates to the field of clamps, in particular to the technical field of single-side clamping manipulators, and specifically to a non-powered single-side clamping manipulator for a multi-station drawing die. Background Art

[0002] A multi-station transfer drawing die is a die that transfers the sheet and the drawing blank in the die and completes a specific drawing process between different stations. Compared with the ordinary continuous drawing method, its biggest feature is that the multi-station drawing uses a robot to transfer the sheet, thereby improving the material utilization rate and the diversity of the production process. Therefore, the robot is very important in the multi-station drawing process. In traditional multi-station drawing, the clamping or transfer of the sheet or blank is generally carried out by clamping on both sides at the same time or by clamping on one side with a cylinder. The disadvantage of double-sided clamping is that the robots on both sides block the line of sight, which is inconvenient for mold adjustment and has high cost. Although the single-sided robot solves the problem of line of sight obstruction, it is necessary to add a clamping cylinder to the robot to fix and transfer the parts, which increases the cost and the need to increase the control of the cylinder, which increases instability. Therefore, it is necessary to design a mechanical gripper that can perform single-sided clamping without a cylinder. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a non-powered single-sided clamping manipulator for a multi-station drawing die, so as to solve the difficulties of the prior art.

[0004] To achieve the above-mentioned and other related purposes, the present invention provides a non-powered single-side clamping manipulator for a multi-station drawing die, comprising:

[0005] A nylon bracket 1, wherein the nylon bracket 1 is provided with a clamping groove 11;

[0006] A clamping drive channel 12, the clamping drive channel 12 is opened on the left side or the right side of the nylon bracket 1, and the bottom of the clamping drive channel 12 is connected to the clamping groove 11;

[0007] The roller clamping module 2 is provided in the clamping drive channel 12 on one side close to the clamping groove 11;

[0008] The elastic driving module 3 has one side which is passed through the clamping driving channel 12 away from the clamping groove 11 , and the other side which is passed through the top and bottom of the nylon bracket 1 to enter the clamping driving channel 12 and press against the roller clamping module 2 .

[0009] According to the preferred embodiment, the nylon bracket 1 is made of nylon and is installed on the robotic arm through threads or the like. Nylon is corrosion-resistant and friction-resistant, has a long service life, and will not cause surface defects on the surface of products, especially aluminum products.

[0010] According to the preferred embodiment, the clamping groove 11 is arranged away from the clamping drive channel 12 according to the shape of the part. For example, if a cylindrical part is clamped, it can be in the shape of a semi-waist hole. The other side of the clamping groove 11 extends outward based on the side wall of the semi-waist hole close to the clamping drive channel 12.

[0011] According to the preferred embodiment, the roller clamping module 2 includes:

[0012] A roller fixing rod 21, one side of which is inserted into the clamping drive channel 12, and the other side of which extends straight into the clamping groove 11. A placement groove 22 is provided in the center of the other side of the roller fixing rod 21, and a roller 23 is provided with a clearance fit in the placement groove 22. A rivet shaft 24 is inserted in the center of the roller 23, and the top and bottom of the rivet shaft 24 extend straight and are clamped on the upper and lower sides of the roller fixing rod 21;

[0013] A wedge-shaped groove 25 is provided in the center of the top of the roller fixing rod 21;

[0014] The spring slot 26 is provided in the middle of the roller fixing rod 21 on the side away from the clamping slot 11 .

[0015] According to a preferred embodiment, the roller 23 can be made of nylon or metal, and the roller 23 can rotate freely around the rivet shaft to reduce sliding friction between the roller and the parts.

[0016] According to a preferred embodiment, the wedge-shaped groove 25 is V-shaped with an inclined bottom.

[0017] According to a preferred embodiment, the elastic drive module 3 includes:

[0018] A limiting groove 31 is provided at the top of one side of the nylon bracket 1. The bottom of the limiting groove 31 communicates with the clamping drive channel 12. A cover plate 32 is provided on the top of the limiting groove 31. The cover plate 32 is connected to the nylon bracket 1 by bolts. A movable groove 33 is provided in the center of the bottom of the cover plate 32.

[0019] A wedge-shaped slider 34 is provided, which is fitted into the limiting groove 31 with a gap. The bottom of the wedge-shaped slider 34 is clamped into the wedge-shaped groove 25. A reset groove 35 is provided on the top of the wedge-shaped slider 34. A No. 1 reset spring 36 is placed in the reset groove 35. The No. 1 reset spring 36 presses against the bottom of the reset groove 35 and the top of the movable groove 33 on its upper and lower sides respectively.

[0020] A second cover plate 37, which is provided on the side of the clamping drive channel 12 away from the clamping groove 11 and is connected to the nylon bracket 1 by bolts;

[0021] The No. 2 return spring 38 has one side placed in the spring slot 26 , and the other side of the No. 2 return spring 38 abuts against the No. 2 cover plate 37 .

[0022] According to a preferred embodiment, the wedge-shaped groove 25 cooperates with the wedge-shaped slider to limit the maximum extension length of the front end of the fixing rod.

[0023] The utility model adopts a nylon bracket, a clamping drive channel, a roller clamping module and an elastic drive module. The non-powered single-sided clamping robot for the multi-station drawing die designed by this technical solution is simple to manufacture and produce, does not require a power source such as a cylinder to achieve single-sided clamping of the product, and will not generate friction on the product during the clamping process.

[0024] The following will describe in more detail the best embodiments of the present invention in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the utility model;

[0026] Figure 2 Shown is a schematic diagram of the three-dimensional structure of the cylindrical clamping product of the present invention;

[0027] Figure 3 Shown is an enlarged schematic diagram of the three-dimensional structure of the nylon bracket in the present invention;

[0028] Figure 4 Shown is an enlarged schematic diagram of the three-dimensional structure of the roller fixing rod in the present invention;

[0029] Figure 5 Shown is an enlarged schematic diagram of the three-dimensional structure of the wedge-shaped slider in the present invention;

[0030] Figure 6 Shown is a mid-section view of the nylon bracket near the clamping drive channel in the present invention;

[0031] Figure 7 Shown is a diagram of the process of clamping a cylindrical product in the present utility model;

[0032] Description of labels

[0033] 1. Nylon bracket; 11. Clamping groove; 12. Clamping drive channel;

[0034] 2. Roller clamping module; 21. Roller fixing rod; 22. Placement slot; 23. Roller; 24. Rivet shaft; 25. Wedge slot; 26. Spring slot;

[0035] 3. Elastic drive module; 31. Limiting slot; 32. Cover plate No. 1; 33. Movable slot; 34. Wedge-shaped slider; 35. Reset slot; 36. Reset spring No. 1; 37. Cover plate No. 2; 38. Reset spring No. 2. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Compared to the embodiments shown in the drawings, feasible embodiments within the scope of protection of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0038] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the specification and claims of the present utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not necessarily indicate a quantity limitation. Words such as "include" or "comprising" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] The utility model proposes a non-powered single-sided clamping robot for a multi-station drawing die, which is used in the design process of the single-sided clamping robot. The utility model does not limit the specifications and types of the clamped parts, but the nylon bracket 1, clamping drive channel 12, roller clamping module 2 and elastic drive module 3 structure are particularly suitable for enabling the single-sided clamping robot to have a clamping function without using a cylinder.

[0040] In general, the unpowered single-side clamping manipulator for multi-station drawing dies proposed in the present invention mainly includes: a nylon bracket 1, a clamping drive channel 12, a roller clamping module 2 and an elastic drive module 3. Figure 1 , which shows the arrangement relationship of the nylon bracket 1, the clamping drive channel 12, the roller clamping module 2 and the elastic drive module 3.

[0041] The unpowered single-side clamping manipulator for multi-station drawing dies proposed in this utility model is driven by the manipulator arm to approach the finished product during the clamping process. Figure 7 As shown, the product gradually enters the clamping groove 11, which drives the roller 23 to rotate. At the same time, the roller fixing rod 21 is squeezed and retracted into the clamping drive channel 12, driving the wedge-shaped slider 34 to move into the movable groove 33. At this time, the No. 1 return spring 36 and the No. 2 return spring 38 are squeezed and deformed at the same time, so that the roller fixing rod 21 has the force to move into the clamping groove 11 until the product completely enters the clamping groove 11. At this time, the No. 1 return spring 36 and the No. 2 return spring 38 will be reset to the original position and can provide a certain clamping force while preventing the product from being squeezed and popping out of the clamping groove 11, and limiting the product in the clamping groove 11. The non-powered single-sided clamping manipulator of the multi-station drawing die designed by this technical solution is simple to manufacture and produce, does not require a power source such as a cylinder to achieve single-sided clamping of the product, and will not generate friction on the product during the clamping process.

[0042] The above-mentioned nylon bracket 1 is provided with a clamping groove 11. The nylon bracket 1 is made of nylon and is installed on the robotic arm through threads or the like. The nylon material has the characteristics of corrosion resistance and friction resistance, has a long service life and will not cause surface defects on the surface of the product, especially aluminum products. The clamping groove 11 is set away from the clamping drive channel 12 side according to the shape of the part. If a cylindrical part is clamped, it can be in the shape of a semi-waist hole. The other side of the clamping groove 11 extends outward based on the side wall of the semi-waist hole close to the clamping drive channel 12.

[0043] The clamping drive channel 12 is opened on the left side or the right side of the nylon bracket 1 , and the bottom of the clamping drive channel 12 is communicated with the clamping groove 11 .

[0044] The roller clamping module 2 is arranged on one side of the clamping drive channel 12 near the clamping groove 11. The roller clamping module 2 includes: a roller fixing rod 21, a roller 23, a wedge groove 25 and a spring groove 26, wherein one side of the roller fixing rod 21 is arranged in the clamping drive channel 12, and the other side of the roller fixing rod 21 extends straight into the clamping groove 11. A placement groove 22 is provided in the middle of the other side of the roller fixing rod 21, and a roller 23 is provided with a clearance fit in the placement groove 22. A rivet shaft 24 is passed through the middle of the roller 23, and the top and bottom of the rivet shaft 24 extend straight and are clamped on the upper and lower sides of the roller fixing rod 21. A wedge-shaped groove 25 is provided in the middle of the top of the fixing rod 21. The wedge-shaped groove 25 is inclined in a V-shaped groove bottom. A spring groove 26 is provided in the middle of the side of the roller fixing rod 21 away from the clamping groove 11. The roller 23 can be made of nylon or metal. The roller 23 can rotate freely around the rivet shaft to reduce the sliding friction between the manipulator and the product during clamping, prevent wear on the product surface, and protect the appearance of the product. The wedge-shaped groove 25 cooperates with the wedge-shaped slider in the elastic drive module 3 to limit the maximum extension length of the front end of the fixing rod, thereby preventing the roller fixing rod 21 from extending too long from the clamping drive channel 12 and falling off.

[0045] One side of the elastic drive module 3 is arranged in the clamping drive channel 12 away from the clamping groove 11, and the other side of the elastic drive module 3 is arranged at the top and bottom of the nylon bracket 1 to enter the clamping drive channel 12 and hold the roller clamping module 2. The elastic drive module 3 includes: a limit groove 31, a No. 1 cover plate 32, a No. 1 return spring 36, a wedge-shaped slider 34, a No. 2 cover plate 37 and a No. 2 return spring 38, wherein the limit groove 31 is opened at the top of one side of the nylon bracket 1, the bottom of the limit groove 31 is communicated with the clamping drive channel 12, the top of the limit groove 31 is covered with a No. 1 cover plate 32, the No. 1 cover plate 32 is connected to the nylon bracket 1 by bolts, and the No. A movable groove 33 is provided in the middle of the bottom of the cover plate 32, and a wedge-shaped slider 34 is fitted into the limit groove 31 through a gap. The bottom of the wedge-shaped slider 34 is clamped in the wedge-shaped groove 25, and a reset groove 35 is provided on the top of the wedge-shaped slider 34. A No. 1 reset spring 36 is placed in the reset groove 35. The upper and lower sides of the No. 1 reset spring 36 respectively press against the bottom of the reset groove 35 and the top of the movable groove 33. A No. 2 cover plate 37 is provided on the side of the clamping drive channel 12 away from the clamping groove 11. The No. 2 cover plate 37 is connected to the nylon bracket 1 by bolts. One side of the No. 2 reset spring 38 is placed in the spring groove 26, and the other side of the No. 2 reset spring 38 presses against the No. 2 cover plate 37.

[0046] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A non-powered single-side clamping manipulator for a multi-station drawing die, characterized in that: include: A nylon bracket (1), wherein the nylon bracket (1) is provided with a clamping groove (11); A clamping drive channel (12), wherein the clamping drive channel (12) is opened on the left side or the right side of the nylon bracket (1), and the bottom of the clamping drive channel (12) is communicated with the clamping groove (11); A roller clamping module (2), the roller clamping module (2) being arranged in the clamping drive channel (12) on one side close to the clamping groove (11); An elastic drive module (3), one side of the elastic drive module (3) is arranged in the clamping drive channel (12) away from the clamping groove (11), and the other side of the elastic drive module (3) is arranged at the top and bottom of the nylon bracket (1) to enter the clamping drive channel (12) and abut against the roller clamping module (2).

2. The unpowered single-side clamping manipulator for a multi-station drawing die according to claim 1 is characterized in that: The roller holding module (2) comprises: A roller fixing rod (21), one side of the roller fixing rod (21) is inserted into the clamping drive channel (12), the other side of the roller fixing rod (21) extends straight into the clamping groove (11), a placement groove (22) is provided in the middle of the other side of the roller fixing rod (21), a roller (23) is provided in the placement groove (22) with clearance fit, a rivet shaft (24) is inserted in the middle of the roller (23), and the top and bottom of the rivet shaft (24) extend straight and are clamped on the upper and lower sides of the roller fixing rod (21); A wedge-shaped groove (25), wherein the wedge-shaped groove (25) is provided in the center of the top of the roller fixing rod (21); A spring groove (26) is provided in the middle of the roller fixing rod (21) on a side away from the clamping groove (11).

3. The unpowered single-side clamping manipulator for a multi-station drawing die according to claim 2 is characterized in that: The wedge-shaped groove (25) is V-shaped with a bottom that is inclined.

4. The unpowered single-side clamping manipulator for a multi-station drawing die according to claim 3 is characterized in that: The elastic driving module (3) comprises: A limiting groove (31), the limiting groove (31) is provided at the top of one side of the nylon bracket (1), the bottom of the limiting groove (31) is communicated with the clamping drive channel (12), the top of the limiting groove (31) is covered with a No. 1 cover plate (32), the No. 1 cover plate (32) is connected to the nylon bracket (1) by bolts, and a movable groove (33) is provided in the middle of the bottom of the No. 1 cover plate (32); A wedge-shaped slider (34), the wedge-shaped slider (34) is fitted into the limiting groove (31) through a gap, the bottom of the wedge-shaped slider (34) is clamped in the wedge-shaped groove (25), the top of the wedge-shaped slider (34) is provided with a reset groove (35), a No. 1 reset spring (36) is placed in the reset groove (35), and the No. 1 reset spring (36) is respectively pressed against the bottom of the reset groove (35) and the top of the movable groove (33) at its upper and lower sides; A second cover plate (37), the second cover plate (37) is provided on a side of the clamping drive channel (12) away from the clamping groove (11), and the second cover plate (37) is connected to the nylon bracket (1) by bolts; A No. 2 return spring (38), one side of the No. 2 return spring (38) is placed in the spring slot (26), and the other side of the No. 2 return spring (38) is against the No. 2 cover plate (37).

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