Product clamping and positioning jig, product positioning system and product machining system

Abstract

The utility model relates to a product clamping and positioning jig, a product positioning system and a product machining system. The jig comprises a positioning base, a jig base, a jig bottom plate and at least two clamping mechanisms. The at least two clamping mechanisms are arranged on the jig bottom plate; the jig bottom plate is arranged on the jig base, and the jig base can rotate; the jig base is arranged on the positioning base, and the clamping mechanism comprises a pressing push block and two clamping assemblies connected to the two ends of the pressing push block. The clamping assembly comprises a first elastic piece arranged above the pressing push block, and when the pressing push block is pressed by external force, the first elastic piece can stretch so that the product can be arranged outside the clamping assembly. And after the external force disappears, the pressing push block can act on the first elastic piece to enable the first elastic piece to deform and expand to clamp the inner hole of the product. According to the utility model, a plurality of products can be clamped and positioned.

Description

Technical Field

[0001] The utility model relates to a product clamping and positioning fixture, a product positioning system and a product processing system. Background Art

[0002] In order to improve the mechanical strength and wear resistance of the product, the product needs to be shot peened. During the shot peening process, the product needs to be positioned. In the prior art, the positioning of the product is usually achieved by clamping the inner hole of the product. Utility Model Content

[0003] In order to achieve the clamping and positioning of the product, the utility model provides a product clamping and positioning fixture, a product positioning system and a product processing system. The technical solution provided by the utility model is:

[0004] In a first aspect, the utility model provides a product clamping and positioning fixture, comprising a positioning base, a fixture base, a fixture bottom plate and at least two clamping mechanisms;

[0005] The at least two clamping mechanisms are arranged on the fixture bottom plate;

[0006] The jig bottom plate is arranged on the jig base, and the jig base is rotatable;

[0007] The fixture base is arranged on the positioning base;

[0008] The clamping mechanism comprises a clamping push block and two clamping assemblies connected to both ends of the clamping push block;

[0009] The clamping assembly includes a first elastic member arranged above the clamping push block. When the clamping push block is pressed by an external force, the first elastic member can stretch so that the product can be placed outside the clamping assembly; and after the external force disappears, the clamping push block can act on the first elastic member to cause the first elastic member to deform and expand to clamp the inner hole of the product.

[0010] In one or some embodiments, the clamping assembly includes a product support seat, a mounting base, a second elastic member and a limit block;

[0011] The mounting base is arranged in the product support base;

[0012] The second elastic member is sleeved on the outer surface of the mounting base;

[0013] The product support seat is provided with a first opening, and the pressing push block passes through the first opening and is sleeved on the outer surface of the mounting base;

[0014] The pressing push block is arranged above the second elastic member;

[0015] The limiting block is arranged above the first elastic member and is fixed to the upper end of the mounting base.

[0016] In one or some embodiments, the positioning base includes a second positioning column, and the bottom of the fixture base is provided with a second opening;

[0017] The second positioning post can be snap-fitted into the second opening.

[0018] In one or some embodiments, the number of the clamping mechanisms is two, and the second positioning column is arranged in parallel with the clamping push block.

[0019] In one or some embodiments, the second elastic member is a spring.

[0020] In one or some embodiments, the first elastic member is an expandable silicone sleeve.

[0021] In a second aspect, the utility model provides a product positioning system, including a driving mechanism and a product clamping and positioning fixture as described in the first aspect;

[0022] The driving mechanism is connected to the fixture base and can drive the fixture base to rotate.

[0023] In one or some embodiments, the product positioning system further comprises a gripping link;

[0024] The clamping connecting rod is arranged on the fixture bottom plate.

[0025] In one or some embodiments, the product positioning system further comprises a clamping mechanism;

[0026] The clamping mechanism may be connected to the clamping link.

[0027] In a third aspect, the utility model provides a product processing system, including a product moving mechanism and a product positioning system as described in the second aspect;

[0028] The product moving mechanism is used to place or move the product away from the clamping assembly.

[0029] Based on the above technical solution, the beneficial effects of the utility model compared with the prior art are as follows:

[0030] The product clamping and positioning jig provided by the utility model includes at least two clamping mechanisms, at least two clamping mechanisms are arranged on the jig bottom plate, the jig bottom plate is arranged on the jig base, and the clamping mechanism includes a clamping push block and clamping components respectively connected to the two ends of the clamping push block. When the clamping push block is clamped by an external force, the first elastic members of the two clamping components connected to the two ends of the clamping push block can be stretched at the same time, and the product can be placed outside the clamping component, and after the clamping push block is released, the clamping push block acts on the first elastic members of the two clamping components connected to the two ends of the clamping push block at the same time, and the first elastic member can generate tension on the inner hole of the product to position the product. By operating the clamping push block, two products can be positioned at one time. After the product is positioned by the clamping component on one side of the jig bottom plate, by rotating the jig base, other products can be positioned by the clamping component on the other side of the jig bottom plate, and the clamping and positioning of multiple products can be achieved at the same time.

[0031] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures specifically pointed out in the description, claims and drawings.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a structural schematic diagram of a product clamping and positioning fixture provided by an embodiment of the utility model;

[0035] Figure 2 It is a structural schematic diagram of a clamping assembly provided by an embodiment of the utility model;

[0036] Figure 3 It is a schematic diagram of two states of the clamping assembly provided in an embodiment of the utility model.

[0037] In the figure: 1. positioning base; 2. fixture base; 3. fixture bottom plate; 4. clamping assembly; 5. clamping connecting rod; 6. product support seat; 7. mounting base; 8. second elastic member; 9. pressing push block; 10. first elastic member; 11. limit block; 12. first opening. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0040] The inventor found in his work that the prior art provides an internal expansion chuck that can adapt to clamping different inner holes, but the internal expansion chuck can only clamp and position one workpiece at a time, which cannot meet the inventor's expectations. After further research and development, the inventor made the present utility model.

[0041] Embodiment 1

[0042] The utility model embodiment provides a product clamping and positioning fixture, referring to Figure 1 As shown, it includes a positioning base 1, a fixture base 2, a fixture bottom plate 3 and at least two clamping mechanisms;

[0043] The at least two clamping mechanisms are arranged on the jig bottom plate 3. The at least two clamping mechanisms are evenly arranged on the jig bottom plate 3.

[0044] The jig bottom plate 3 is arranged on the jig base 2, and the jig base 2 is arranged on the positioning base 1. The jig base 2 can be driven to rotate by an external driving mechanism. By driving the jig base 2 to rotate through the external driving mechanism, the jig bottom plate 3 can be driven to rotate, so that the clamping assembly 4 moves to the bottom of the external product moving mechanism, and the clamping assembly 4 under the product moving mechanism is switched.

[0045] The clamping mechanism includes a pressing push block 9 and two clamping assemblies 4 connected to both ends of the pressing push block 9, and the clamping assembly 4 includes a first elastic member 10 arranged above the pressing push block 9. When an external force is applied to the pressing push block 9, the pressing push block 9 moves downward due to the external force, and the first elastic members 10 of the two clamping assemblies 4 connected to both ends of the pressing push block 9 stretch at the same time. By using an external product moving mechanism, the product is sheathed outside the first elastic member 10, so that the product can be placed outside the clamping assembly 4. When the external force is removed, the pressing push block 9 is released to move upward, and acts on the first elastic members 10 of the two clamping assemblies 4 at the same time. The first elastic members 10 of the two clamping assemblies 4 deform and expand at the same time to generate tension on the inner hole of the product, clamping the inner hole of the product to position the product. After two products are clamped and positioned by a set of clamping components 4, the fixture base 2 is rotated so that the next set of clamping components 4 on the fixture bottom plate 3 moves to the position corresponding to the above-mentioned product moving mechanism, and the above-mentioned operation of applying external force to the pressing push block 9 and removing the external force is repeated to achieve the clamping and positioning of the next set of products. The product clamping and positioning fixture provided by the utility model has an automated multi-station clamping function, which can achieve the clamping and positioning of multiple products at one time, solve the problem of clamping and positioning of multiple products when operating in the equipment, and has high practicality. In this case, the placement and removal of two products can be achieved simultaneously through the two-station product moving mechanism.

[0046] The at least two groups of clamping mechanisms mentioned above may also share a pressing push block 9, which is respectively connected to the clamping components 4 of each clamping mechanism. Taking the example of a jig including two groups of clamping mechanisms, the pressing push block 9 may be arranged in a cross shape, and the four ends of the pressing push block 9 may be respectively connected to the four clamping components 4. By applying an external force to the pressing push block 9, the four clamping components may be simultaneously acted on, and the clamping and positioning of four products may be achieved at the same time. In this case, the placement and removal of four products may be achieved simultaneously through a four-station product moving mechanism.

[0047] In an alternative embodiment, referring to Figure 2 As shown, the clamping assembly 4 includes a product support seat 6, a mounting base 7, a second elastic member 8 and a limit block 11;

[0048] The mounting base 7 is disposed in the product support seat 6, and the second elastic member 8 is sleeved on the outer surface of the mounting base 7;

[0049] Reference Figure 1 As shown, the product support seat 6 is provided with a first opening 12, and the pressing push block 9 passes through the first opening 12 and is sleeved on the outer surface of the mounting base 7. When an external force is applied to the pressing push block 9 and the external force disappears, the pressing push block 9 can move within the stroke limited by the first opening 12.

[0050] The pressing push block 9 is disposed above the second elastic member 8, and the first elastic member 10 is disposed above the pressing push block 9. The pressing push block 9 passes through the first opening 12 and abuts against the lower end of the first elastic member 10 and the upper end of the second elastic member 8 respectively.

[0051] The above-mentioned limit block 11 is arranged above the first elastic member 10 and is installed on the upper end of the mounting base 7 by screw locking. The limit block 11 is used to position the first elastic member 10. When the product is placed outside the first elastic member 10, the limit block 11 can also support the product.

[0052] In order to facilitate the description of the connection relationship between the various components in the clamping assembly 4, Figure 2 The portion of the mounting base 7 horizontally disposed on the fixture bottom plate 3 is called the mounting base, and the portion vertically disposed and connected to the mounting base as a whole is called the first positioning column.

[0053] The second elastic member 8 and the first elastic member 10 are sleeved outside the first positioning column, and the limit block 11 is fixed to the upper end of the first positioning column. When the product moving mechanism moves the product and places the product outside the first elastic member 10, the limit block 11 and the upper end of the product support seat 6 can support the product. Figure 3 As shown, the outer wall of the pressing push block 9 can be covered with a protective cover, and the upper part of the product support seat 6 is arranged as follows Figure 2 The frustum of the cone shown can prevent the protective cover of the pressing push block 9 from colliding with the product support seat 6 when the pressing push block 9 moves upward.

[0054] Reference Figure 3 As shown in the figure, A and B are different states of the first elastic member 10. The first elastic member 10 is initially in a compressed state. When an external force is applied to the pressing push block 9, the pressing push block 9 is pressed downward by the external force, the second elastic member 8 is compressed, and the first elastic member 10 above the pressing push block 9 is in a normal state due to its own elastic rebound (refer to Figure 3 At this time, the product is placed outside the limit block 11 and the first elastic member 10. After the external force disappears, the second elastic member 8 pushes the pressing push block 9 upward due to its own elastic rebound, and the first elastic member 10 is compressed and radially expanded (refer to Figure 3 As shown in the B state in the figure, tension is generated on the inner hole of the product, the product is clamped, and the product is positioned.

[0055] After the product is positioned, it can be subjected to other processing such as shot peening. After the processing is completed, an external force is applied to the pressing push block 9, and the pressing push block 9 is pressed by the external force. The first elastic member 10 rebounds due to its own elasticity and is in a normal state (refer to Figure 3 The tension on the product disappears and the product can be removed by an external product moving mechanism.

[0056] The second elastic member 8 is a member that can be deformed when subjected to the vertical load of the compression push block 9, such as a spring. The first elastic member 10 is a member that can be deformed axially and radially when subjected to the vertical load of the compression push block 9, such as an expandable silicone sleeve.

[0057] The rubber internal expansion centering fixture in the prior art requires manual operation to deform the rubber sleeve to fix the workpiece, and can only fix one product at a time. The utility model fixes or releases the product by pressing or releasing the pressing push block 9 to restore or deform the expanded silicone sleeve. It is not only automatically controlled, but also can fix or release multiple products at a time, which is more efficient than the prior art.

[0058] In an optional embodiment, the positioning base 1 includes a second positioning column, and the bottom of the fixture base 2 is provided with a second opening, and the second positioning column can be snapped into the second opening. Figure 2 As shown, the second positioning column is a T-shaped positioning column, and the shape of the second opening matches the T-shaped positioning column. The second opening of the jig base 2 is connected to the second positioning column of the positioning base 1 to achieve the positioning of the jig. By clamping the jig through an external clamping mechanism and applying a certain force, the part above the jig base 2 can be moved as a whole, so that the jig base 2 is separated from the second positioning column of the positioning base 1. When the jig is taken or placed, an external clamping mechanism such as a clamping claw clamps the clamping connecting rod 5 of the jig, and when the jig is moved to the top of the positioning base 1, the jig is moved downward. When the jig base 2 contacts the positioning base 1, the jig base 2 is rotated so that the second positioning column of the jig base 2 is engaged with the second opening of the positioning base 1 to achieve the positioning of the jig.

[0059] In an optional embodiment, the number of the clamping mechanisms is two, and the second positioning column of the positioning base 1 is arranged in parallel with the pressing push block 9. After a group of products are positioned, the jig base 2 is driven to rotate 180° so that the next group of clamping components 4 on the jig bottom plate 3 are moved to the bottom of the product moving mechanism, and the clamping components 4 on the jig bottom plate 3 are switched to clamp and position the next group of products.

[0060] The above-mentioned product in the utility model can be a cylinder, and the above-mentioned product clamping and positioning fixture can realize the fixing or releasing of multiple products at one time.

[0061] Embodiment 2

[0062] Based on the same inventive concept, the embodiment of the utility model further provides a product positioning system, including a driving mechanism and a product clamping and positioning fixture as described in the above embodiment;

[0063] The driving mechanism is connected to the fixture base 2 and can drive the fixture base 2 to rotate. The structure of the driving mechanism can refer to the description in the prior art and will not be repeated here.

[0064] After two products are clamped and positioned by a group of clamping components 4, the fixture base 2 is rotated by the driving mechanism, so that the next group of clamping components 4 on the fixture bottom plate 3 moves to the bottom of the above-mentioned product moving mechanism, and the external force is repeatedly applied to the clamping push block 9 and the external force is removed to achieve the clamping and positioning of the next group of products, thereby achieving the positioning and clamping of multiple products at the same time.

[0065] In an optional embodiment, the product positioning system further comprises a clamping link 5;

[0066] The clamping connecting rod 5 is arranged on the fixture bottom plate 3, and the clamping connecting rod 5 is used to move the above-mentioned product clamping and positioning fixture away or place it in a preset position to achieve the replacement of the above-mentioned product clamping and positioning fixture.

[0067] In an optional embodiment, the product positioning system further includes a clamping mechanism, which may be a clamping claw.

[0068] The clamping mechanism can be connected to the clamping connecting rod 5. By controlling the clamping mechanism to clamp the clamping connecting rod 5 and move it through an external servo controller, the part above the fixture base 2 of the product clamping and positioning fixture can be separated from the positioning base 1 and moved away from the initial position. And the part above the fixture base 2 of the product clamping and positioning fixture can be clamped with the positioning base 1 to achieve fixture positioning.

[0069] Embodiment 3

[0070] Based on the same inventive concept, the embodiment of the utility model further provides a product processing system, including a product moving mechanism and a product positioning system as described in the above embodiment;

[0071] The product moving mechanism is used to place or move the product away from the clamping assembly. The structure of the product moving mechanism can be referred to the description in the prior art and will not be described in detail here.

[0072] When the clamping push block 9 is pressed by an external force, the clamping assembly is in the first working state, and the product moving mechanism can be used to place the product outside the clamping assembly. Then release the clamping push block 9, and the clamping assembly is in the second working state. The clamping assembly generates tension on the inner hole of the product to position the product. After the product is positioned, the product can be subjected to other processing such as shot peening. After the processing is completed, an external force is applied to the clamping push block 9, and the clamping push block 9 is pressed by the external force, so that the first elastic member 10 in the clamping assembly is in a normal state due to its own elastic rebound (refer to Figure 3 The tension on the product disappears, and the product can be removed by the above-mentioned product moving mechanism.

[0073] In this document, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. The orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0074] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. It should be noted that the embodiments and features in the embodiments of the utility model can be combined with each other without conflict. The utility model is not limited to any single aspect, nor is it limited to any single embodiment, nor is it limited to any combination and / or replacement of these aspects and / or embodiments. Each aspect and / or embodiment of the utility model can be used alone, or in combination with one or more other aspects and / or other embodiments.

[0075] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above-mentioned embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A product clamping and positioning fixture, characterized in that: It includes a positioning base, a fixture base, a fixture bottom plate and at least two clamping mechanisms; The at least two clamping mechanisms are arranged on the fixture bottom plate; The jig bottom plate is arranged on the jig base, and the jig base is rotatable; The fixture base is arranged on the positioning base; The clamping mechanism comprises a clamping push block and two clamping assemblies connected to both ends of the clamping push block; The clamping assembly includes a first elastic member arranged above the clamping push block. When the clamping push block is pressed by an external force, the first elastic member can stretch so that the product can be placed outside the clamping assembly; and after the external force disappears, the clamping push block can act on the first elastic member to cause the first elastic member to deform and expand to clamp the inner hole of the product.

2. The product clamping and positioning fixture according to claim 1, characterized in that: The clamping assembly includes a product support seat, a mounting base, a second elastic member and a limit block; The mounting base is arranged in the product support base; The second elastic member is sleeved on the outer surface of the mounting base; The product support seat is provided with a first opening, and the pressing push block passes through the first opening and is sleeved on the outer surface of the mounting base; The pressing push block is arranged above the second elastic member; The limiting block is arranged above the first elastic member and is fixed to the upper end of the mounting base.

3. The product clamping and positioning fixture according to claim 1, characterized in that: The positioning base includes a second positioning column, and the bottom of the fixture base is provided with a second opening; The second positioning post can be snap-fitted into the second opening.

4. The product clamping and positioning fixture according to claim 3 is characterized in that: The number of the clamping mechanisms is two, and the second positioning column is arranged in parallel with the pressing push block.

5. The product clamping and positioning fixture according to claim 2, characterized in that: The second elastic member is a spring.

6. The product clamping and positioning fixture according to claim 2, characterized in that: The first elastic member is an expandable silicone sleeve.

7. A product positioning system, characterized in that: It comprises a driving mechanism and a product clamping and positioning fixture as claimed in any one of claims 1 to 6; The driving mechanism is connected to the fixture base and can drive the fixture base to rotate.

8. The product positioning system according to claim 7, characterized in that: Also included is a clamping link; The clamping connecting rod is arranged on the fixture bottom plate.

9. The product positioning system according to claim 8, characterized in that: Also included is a clamping mechanism; The clamping mechanism may be connected to the clamping link.

10. A product processing system, characterized in that: comprising a product moving mechanism and a product positioning system as claimed in any one of claims 7 to 9; The product moving mechanism is used to place or move the product away from the clamping assembly.

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