Inclined pressing block self-locking clamp

Abstract

The utility model discloses an inclined pressing block self-locking clamp, which belongs to the technical field of clamps and comprises a bottom plate. A clamping oil cylinder is fixedly installed in the middle of the bottom plate, a plurality of blank material grooves are formed in one side of the clamping oil cylinder, and a plurality of finished product material grooves are formed in the other side of the clamping oil cylinder. A blank clamping mechanism used for being matched with the blank configuration to form a self-locking inclined pressure reinforcement structure is arranged in the blank trough. A finished product clamping mechanism used for clamping and fixing a blank subjected to preliminary machining is arranged in the finished product trough. The bottom plate is further provided with a clamping block limiting assembly used for limiting the stroke of the output end of the clamping oil cylinder. Through the mode, the blank clamping mechanism is matched with the bottom inclined surface of the blank to form a self-locking inclined pressure reinforcement structure, so that main clamping force is applied to the bottom of the blank, the blank can be stably clamped, a main body material for forming a finished blank is not influenced, a thin wall of a turning part is prevented from being deformed, and the turning quality is improved. And the yield is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a self-locking jig with an inclined pressure block. Background Art

[0002] Computer numerical control machining is widely used in the manufacturing industry, especially in the machining of materials such as metals and woods with complex configurations. In order to meet the needs of intelligent machining, it is necessary to design matching jigs for the parts to be machined.

[0003] Chinese Patent CN217122539U discloses a CNC multi-station quick-pressure jig. On the upper surface of the upper fixing plate of the jig, a guide rail arranged in the left-right direction is fixed. In the T-shaped groove on the upper surface of the guide rail, there are several T-shaped blocks. On the T-shaped blocks, there are fixed blocks. The fixed block, the locking block, and the sliding block are arranged on the T-shaped block in sequence from left to right. The sliding block slides in the guide rail. The locking block, the T-shaped block, and the guide rail are sequentially penetrated from top to bottom by the connecting rod of the air cylinder. During clamping, the air cylinder drives the locking block downward, so that the sliding block slides on the guide rail to clamp the workpiece, realizing the clamping function of multiple workpieces. However, the jig still has the following problems:

[0004] During the CNC machining process, for smaller parts, if the pressing force is too large, the thin wall of the turning part is likely to deform, and if the pressing force is too small, the part will slide and cause a following rotation phenomenon, thereby increasing the defective rate of the workpiece.

[0005] Based on this, the utility model designs a self-locking jig with an inclined pressure block to solve the above problems. Summary of the Utility Model

[0006] Aiming at the above-mentioned shortcomings of the prior art, the utility model provides a self-locking jig with an inclined pressure block.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0008] The self-locking jig with an inclined pressure block includes a bottom plate;

[0009] A clamping oil cylinder is fixedly installed in the middle of the bottom plate. On one side of the clamping oil cylinder, there are several blank material grooves, and on the other side of the clamping oil cylinder, there are several finished product material grooves. Moreover, both the blank material grooves and the finished product material grooves are evenly opened at equal intervals along the length direction of the bottom plate at the upper end of the bottom plate;

[0010] In the blank material groove, there is a blank clamping mechanism used to cooperate with the blank configuration to form a self-locking inclined pressure and force-increasing structure. After clamping and fixing the blank through the blank clamping mechanism, the blank is preliminarily processed;

[0011] In the finished product material groove, there is a finished product clamping mechanism used to clamp and fix the blank that has been preliminarily processed, and the milling operation of the blank allowance is carried out;

[0012] The output end of the clamping oil cylinder is connected to the blank material groove and the finished product material groove;

[0013] On the bottom plate, there is also a clamp block limiting component for limiting the stroke of the output end of the clamping oil cylinder.

[0014] Furthermore, the blank clamping mechanism includes a blank clamping component for cooperating with the inclined plane at the bottom of the blank to form a self-locking inclined pressure force-increasing structure and a blank side positioning component for clamping and positioning the side of the blank. The blank clamping component and the blank side positioning component are installed in the blank material groove, and the blank clamping component is connected to the output end of the clamping oil cylinder.

[0015] Furthermore, the blank clamping component includes a positioning inclined block and a pressing inclined block. The positioning inclined block is fixedly installed in the blank material groove, the pressing inclined block is fixedly connected to the output end of the clamping oil cylinder, and inclined planes for cooperating with the inclined plane at the bottom of the blank are provided at the proximal ends of the positioning inclined block and the pressing inclined block.

[0016] Furthermore, the blank side positioning component includes a side fixing block and a ball screw. The side fixing block is fixedly installed in the blank material groove, a ball screw is fixedly installed on the side fixing block, and the ball screw cooperates with the inner wall of the blank material groove to achieve side positioning of the blank.

[0017] Furthermore, the finished product clamping mechanism includes a finished product positioning component and a finished product clamping component arranged in the finished product material groove, and the finished product clamping component is fixedly connected to the output end of the clamping oil cylinder.

[0018] Furthermore, the finished product positioning component includes a positioning hole and a positioning groove. A positioning groove for inserting the pin-shaped structure at the head of the finished product is opened at the bottom of the finished product material groove, and a positioning groove for cooperating with the side of the finished product is opened on the side wall of the blank material groove.

[0019] Furthermore, the finished product clamping component includes a finished product pressing block fixedly connected to the output end of the clamping oil cylinder, and a pressing groove for cooperating with the side of the finished product is provided at the end of the finished product pressing block far from the clamping oil cylinder.

[0020] Furthermore, the clamp block limiting component includes a first limiting component for controlling the extending stroke of the output end of the clamping oil cylinder and a second limiting component for controlling the contracting stroke of the output end of the clamping oil cylinder arranged on the bottom plate.

[0021] Furthermore, the first limiting component includes a limiting step and a protrusion. Protrusions are provided at the lower ends of the pressing inclined block and the finished product pressing block, and a limiting step for blocking the protrusion is provided at the upper end of the bottom plate.

[0022] Furthermore, the second limiting component includes a limiting block and a limiting groove. A number of limiting blocks are fixedly connected to the bottom plate and distributed between adjacent pressing inclined blocks and between adjacent finished product pressing blocks. Limiting grooves for cooperating with the limiting blocks are symmetrically formed on both sides of the upper ends of the pressing inclined blocks and the finished product pressing blocks. The limiting blocks slide in the limiting grooves, and the edges of the limiting grooves block the limiting blocks from moving towards the clamping oil cylinder.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] By means of the blank clamping mechanism cooperating with the bottom inclined surface of the blank to form a self-locking inclined pressure force-increasing structure, the main clamping force is applied to the bottom of the blank, so that not only can the blank be stably clamped, but also the main material of the blank for forming the finished product is not affected, avoiding deformation of the thin wall of the turned part, and effectively improving the qualified rate.

[0025] By means of the cooperation of multiple blank material grooves and finished product material grooves, not only can multiple workpieces be clamped and fixed at the same time, but also the working positions are compact, effectively improving the production efficiency.

[0026] The telescopic stroke of the output end of the clamping oil cylinder can be controlled by the clamping block limiting component, realizing stable control of the clamping force. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0028] Figure 1 is a three-dimensional view of the blank;

[0029] Figure 2 is a cross-sectional view of the blank;

[0030] Figure 3 is a three-dimensional structural view of the finished product;

[0031] Figure 4 is a three-dimensional view of the inclined pressure block self-locking fixture of the present utility model;

[0032] Figure 5 is a top view of the inclined pressure block self-locking fixture of the present utility model;

[0033] Figure 6 is a partial three-dimensional Figure 1 ;

[0034] Figure 7 is Figure 6Stereogram of the hidden blank and finished product;

[0035] Figure 8 It is the three-dimensional structure of the bottom plate Figure 1 ;

[0036] Figure 9 It is the sectional view along the A-A direction of Figure 5 ;

[0037] The labels in the figure respectively represent:

[0038] 1. Bottom plate; 11. Blank material groove; 12. Finished product material groove; 2. Blank; 3. Finished product; 4. Clamping oil cylinder; 5. Blank clamping mechanism; 51. Blank clamping assembly; 511. Positioning inclined block; 512. Pressing inclined block; 52. Blank side positioning assembly; 521. Side fixing block; 522. Ball screw; 6. Finished product clamping mechanism; 61. Finished product positioning assembly; 611. Positioning hole; 612. Positioning groove; 62. Finished product clamping assembly; 621. Finished product pressing block; 622. Pressing groove; 7. Clamping block limit assembly; 71. Limit step; 72. Limit block; 73. Protrusion; 74. Limit groove. Specific implementation mode

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0040] The "left", "right", "front", "rear", "upper" and "lower" mentioned in the following description are oriented in the perspective direction of the front view.

[0041] Embodiment 1

[0042] In some embodiments, please refer to the accompanying drawings of the specification Figures 1 - 9 , the inclined pressure block self-locking fixture includes a bottom plate 1;

[0043] A clamping oil cylinder 4 is fixedly installed in the middle of the bottom plate 1. A plurality of blank material grooves 11 are provided on one side of the clamping oil cylinder 4, and a plurality of finished product material grooves 12 are provided on the other side of the clamping oil cylinder 4. The blank material grooves 11 and the finished product material grooves 12 are evenly opened at equal intervals along the length direction of the bottom plate 1 at the upper end of the bottom plate 1;

[0044] The blank material groove 11 is provided with a blank clamping mechanism 5 for cooperating with the blank configuration to form a self-locking inclined pressure force increasing structure. After the blank is clamped and fixed by the blank clamping mechanism 5, preliminary processing is carried out on the blank;

[0045] The finished product chute 12 is provided with a finished product clamping mechanism 6 for clamping and fixing the blank after preliminary processing, so as to facilitate the milling operation of the blank allowance;

[0046] The output end of the clamping oil cylinder 4 is connected to the blank chute 11 and the finished product chute 12;

[0047] The bottom plate 1 is also provided with a clamping block limiting component 7 for limiting the stroke of the output end of the clamping oil cylinder 4 to control the clamping force.

[0048] In the present utility model, the configuration of the blank 2 is as Figure 1 shown, the cross-section of the blank 2 is as Figure 2 shown, the configuration of the finished product 3 is as Figure 3 shown. Through the cooperation of the blank clamping mechanism 5 and the bottom inclined surface of the blank 2, a self-locking inclined pressure force-increasing structure is formed, so that the main clamping force is applied to the bottom of the blank 2. Thus, not only can the blank 2 be stably clamped, but also the main material of the blank 2 for forming the finished product 3 is not affected, avoiding deformation of the thin wall of the turned part and effectively improving the qualified rate;

[0049] After the blank 2 is preliminarily processed to initially form the finished product 3, at this time, the finished product 3 is clamped and fixed by the finished product clamping mechanism 6, and the redundant material is milled to complete the forming operation of the finished product 3;

[0050] Through the cooperation of multiple blank chutes 11 and finished product chutes 12, not only can multiple workpieces be clamped and fixed at the same time, but also the workstations are compact, effectively improving the production efficiency.

[0051] The blank clamping mechanism 5 includes a blank clamping component 51 for cooperating with the bottom inclined surface of the blank 2 to form a self-locking inclined pressure force-increasing structure and a blank side positioning component 52 for clamping and positioning the side surface of the blank 2. The blank clamping component 51 and the blank side positioning component 52 are installed in the blank chute 11, and the blank clamping component 51 is connected to the output end of the clamping oil cylinder 4;

[0052] The blank clamping component 51 includes a positioning inclined block 511 and a pressing inclined block 512. The positioning inclined block 511 is fixedly installed in the blank chute 11, and the pressing inclined block 512 is fixedly connected to the output end of the clamping oil cylinder 4. The proximal ends of the positioning inclined block 511 and the pressing inclined block 512 are both provided with inclined surfaces for cooperating with the bottom inclined surface of the blank 2. After the blank 2 is placed in the blank chute 11, the clamping oil cylinder 4 drives the pressing inclined block 512 to gradually approach the positioning inclined block 511, and the proximal ends of the positioning inclined block 511 and the pressing inclined block 512 are both clamped into the bottom slope of the blank 2, as Figure 9As shown, the positioning inclined block 511 and the pressing inclined block 512 are used to achieve the biting effect on the blank 2. The positioning inclined block 511, the pressing inclined block 512 and the bottom slope of the blank 2 cooperate to form a self-locking inclined pressure force-increasing structure, effectively improving the locking force and not damaging the material of the blank 2 for forming the finished product 3.

[0053] The blank side positioning assembly 52 includes a side fixing block 521 and a ball screw 522. The side fixing block 521 is fixedly installed in the blank material groove 11. The ball screw 522 is fixedly installed on the side fixing block 521. The ball screw 522 and the inner wall of the blank material groove 11 cooperate to achieve the side positioning of the blank 2, and the head steel ball of the side fixing block 521 can reduce the friction force suffered by the blank 2 when it is pushed in the blank material groove 11, further reducing the possibility of damage to the blank 2 when it is clamped and fixed.

[0054] The finished product clamping mechanism 6 includes a finished product positioning assembly 61 and a finished product clamping assembly 62 arranged in the finished product material groove 12. The finished product clamping assembly 62 is fixedly connected to the output end of the clamping oil cylinder 4;

[0055] The finished product positioning assembly 61 includes a positioning hole 611 and a positioning groove 612. A positioning groove 612 for inserting the head pin-type structure of the finished product 3 as shown in the finished product 3 is opened at the bottom of the finished product material groove 12, and a positioning groove 612 for matching with the side surface of the finished product 3 is opened on the side wall of the blank material groove 11;

[0056] The finished product clamping assembly 62 includes a finished product pressing block 621 fixedly connected to the output end of the clamping oil cylinder 4. A pressing groove 622 for matching with the side surface of the finished product 3 is provided at one end of the finished product pressing block 621 away from the clamping oil cylinder 4;

[0057] After aligning the head pin-type structure of the finished product 3 and inserting it into the positioning hole 611 in the finished product material groove 12, the clamping oil cylinder 4 drives the finished product pressing block 621 to gradually approach the workpiece, and finally the workpiece is clamped and fixed through the cooperation of the pressing groove 622 and the positioning groove 612, so that the clamping area is large and the clamping force is uniform.

[0058] As Figure 9 shown, the clamp block limiting assembly 7 includes a limiting step 71, a limiting block 72, a protrusion 73 and a limiting groove 74. Protrusions 73 are provided at the lower ends of the pressing inclined block 512 and the finished product pressing block 621. A limiting step 71 for blocking the protrusion 73 is provided at the upper end of the bottom plate 1. The movement of the pressing inclined block 512 and the finished product pressing block 621 can be blocked through the limiting step 71, realizing the control of the extending stroke of the output end of the clamping oil cylinder 4, and thus avoiding excessive clamping force on the workpiece.

[0059] As Figure 2 、 6As shown in FIGS. 6 and 7, a number of limiting blocks 72 are fixedly connected to the bottom plate 1 and are distributed between adjacent pressing inclined blocks 512 and between adjacent finished product pressing blocks 621. Limiting grooves 74 for cooperating with the limiting blocks 72 are symmetrically formed on both sides of the upper ends of the pressing inclined blocks 512 and the finished product pressing blocks 621. The limiting blocks 72 slide in the limiting grooves 74, and the edges of the limiting grooves 74 block the limiting blocks 72 from moving towards the clamping oil cylinder 4, so as to control the contraction stroke of the output end of the clamping oil cylinder 4, thereby making the exposed space of the blank material tank 11 or the finished product material tank 12 the same each time when loading materials, achieving standardized operation to meet the requirements of intelligent production.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-locking clamp for an inclined pressure block, comprising a bottom plate (1), characterized in that: A clamping cylinder (4) is fixedly installed in the middle of the base plate (1), a plurality of blank material grooves (11) are provided on one side of the clamping cylinder (4), and a plurality of finished product material grooves (12) are provided on the other side of the clamping cylinder (4), and the blank material grooves (11) and the finished product material grooves (12) are evenly arranged at equal intervals at the upper end of the base plate (1) along the length direction of the base plate (1); A blank holding mechanism (5) for forming a self-locking oblique pressure amplification structure in coordination with the blank configuration is provided in the blank material groove (11); the blank is initially processed after being clamped and fixed by the blank holding mechanism (5); A finished product holding mechanism (6) is provided in the finished product trough (12) for holding and fixing the blank that has undergone preliminary processing, and performing a milling operation on the remaining amount of the blank; The output end of the clamping oil cylinder (4) is connected to the blank material trough (11) and the finished product material trough (12); The base plate (1) is also provided with a clamping block limiting assembly (7) for limiting the stroke of the output end of the clamping oil cylinder (4).

2. The self-locking clamp of the oblique pressure block according to claim 1 is characterized in that: The blank clamping mechanism (5) comprises a blank clamping assembly (51) for cooperating with the bottom inclined surface of the blank (2) to form a self-locking oblique pressure amplification structure, and a blank side positioning assembly (52) for clamping and positioning the side of the blank (2). The blank clamping assembly (51) and the blank side positioning assembly (52) are installed in the blank material groove (11), and the blank clamping assembly (51) is connected to the output end of the clamping cylinder (4).

3. The self-locking clamp of the oblique pressure block according to claim 2 is characterized in that: The blank clamping assembly (51) comprises a positioning bevel block (511) and a pressing bevel block (512); the positioning bevel block (511) is fixedly installed in the blank material groove (11); the pressing bevel block (512) is fixedly connected to the output end of the clamping cylinder (4); and the near ends of the positioning bevel block (511) and the pressing bevel block (512) are both provided with inclined surfaces that match the bottom inclined surface of the blank (2).

4. The self-locking clamp of the oblique pressure block according to claim 3 is characterized in that: The blank side positioning assembly (52) comprises a side fixing block (521) and a ball screw (522); the side fixing block (521) is fixedly mounted in the blank material slot (11); the ball screw (522) is fixedly mounted on the side fixing block (521); the ball screw (522) cooperates with the inner wall of the blank material slot (11) to achieve side positioning of the blank (2).

5. The self-locking clamp of the oblique pressure block according to claim 4 is characterized in that: The finished product clamping mechanism (6) comprises a finished product positioning component (61) and a finished product clamping component (62) arranged in the finished product trough (12); the finished product clamping component (62) is fixedly connected to the output end of the clamping oil cylinder (4).

6. The self-locking clamp of the oblique pressure block according to claim 5, characterized in that: The finished product positioning component (61) comprises a positioning hole (611) and a positioning groove (612); the bottom of the finished product trough (12) is provided with a positioning groove (612) which is plugged into the head pin-shaped structure of the finished product (3); and the side wall of the blank trough (11) is provided with a positioning groove (612) which matches the side of the finished product (3).

7. The self-locking clamp of the oblique pressure block according to claim 6, characterized in that: The finished product clamping assembly (62) comprises a finished product pressing block (621) fixedly connected to the output end of the clamping cylinder (4); an end of the finished product pressing block (621) away from the clamping cylinder (4) is provided with a pressing groove (622) matching the side of the finished product (3).

8. The self-locking clamp of the oblique pressure block according to claim 7, characterized in that: The clamp block limiting assembly (7) comprises a first limiting assembly arranged on the base plate (1) for controlling the extension stroke of the output end of the clamping oil cylinder (4) and a second limiting assembly for controlling the contraction stroke of the output end of the clamping oil cylinder (4).

9. The self-locking clamp of the oblique pressure block according to claim 8, characterized in that: The first limiting assembly comprises a limiting step (71) and a protrusion (73); the lower ends of the pressing bevel block (512) and the finished product pressing block (621) are both provided with the protrusion (73); and the upper end of the bottom plate (1) is provided with a limiting step (71) for blocking the protrusion (73).

10. The self-locking clamp of the oblique pressure block according to claim 9, characterized in that: The second limiting assembly comprises a limiting block (72) and a limiting groove (74); a plurality of limiting blocks (72) are fixedly connected to the bottom plate (1) and are distributed between adjacent clamping bevel blocks (512) and adjacent finished product clamping blocks (621); limiting grooves (74) cooperating with the limiting blocks (72) are symmetrically provided on both sides of the upper ends of the clamping bevel blocks (512) and the finished product clamping blocks (621); the limiting blocks (72) slide in the limiting grooves (74) and are blocked by the edges of the limiting grooves (74) from moving in the direction of the clamping cylinder (4).

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