Clamp for special machine for pressing characters on two surfaces of automobile door hinge

Abstract

The utility model provides a clamp for an automobile door hinge two-side character pressing special machine, which comprises a clamp seat, a first boss and a second boss are arranged on the upper end face of the clamp seat, and a cushion block for placing a workpiece is arranged between the first boss and the second boss; a fixed character head block is arranged on the first boss, a movable character head block is arranged on the second boss, the movable character head block and the fixed character head block are oppositely arranged, and the movable character head block is in sliding connection with the second boss; a pressing block is further arranged on the second boss and connected with the movable character head block, a movement mechanism used for pushing the pressing block is arranged on the side face of the clamp base, and an elastic component is arranged between the pressing block and the second boss. According to the scheme, the clamp for the special machine for pressing the characters on the two surfaces of the automobile door hinge ensures that the character pressing depths are consistent; the two sides of a workpiece can be pressed simultaneously, the machining efficiency is improved, impact of a punching machine is avoided, the service life of the character pressing head is prolonged, the replacement frequency is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps for finishing equipment, in particular to a clamp for a double-sided lettering machine for automobile door hinges. Background Art

[0002] The car door hinge is an important part of the car door, commonly known as the door hinge. Its main function is to connect the car door and the car body, and it can realize the opening and closing of the car door. The car door hinge is composed of at least two parts, one is the body part connected to the car body, and the other is the door part connected to the car door. The body part is the hinge installed on the car body, and the door part is the hinge installed on the car door. Figure 1 As shown, the cross section of the left body part 100 is similar to an "L" shape, and different concave characters are pressed on the left side 101 and the right side 102. The difference between the right body part (not shown in the figure) and the left body part is only that the deep step groove 103 and the shallow step groove 104 are swapped. The door part (not shown in the figure) is similar in shape to the body part and is also divided into left and right parts. In a car, the number of left and right parts used is the same.

[0003] Due to the extremely high safety requirements of automobiles, traceability is required, so it is necessary to stamp words on the body parts and door parts to trace the source of production. At present, there are many stamping equipment for body parts and door parts, but basically they use presses (punches) for stamping, which has high labor intensity, and the depth of the font is prone to inconsistency. In addition, due to the high speed of the punch, the life of the stamped word head is short under high-speed impact. Utility Model Content

[0004] The utility model provides a clamp for a double-sided lettering machine for automobile door hinges, so as to solve the technical problems that the existing lettering equipment is prone to inconsistent font depth, short life of the lettering head, frequent replacement and high production cost.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A clamp for a double-sided embossing machine for automobile door hinges, comprising a clamp seat, wherein the upper end surface of the clamp seat is provided with a first boss and a second boss, and a pad for placing a workpiece is provided between the first boss and the second boss; a fixed header block is provided on the first boss, and a movable header block is provided on the second boss, the movable header block is arranged opposite to the fixed header block, and the movable header block is slidably connected to the second boss and can move in a direction approaching or away from the fixed header block; a pressure block for driving the movable header block to move is also provided on the second boss, and the pressure block is connected to the movable header block, a moving mechanism for pushing the pressure block is provided on the side of the clamp seat, and an elastic member for resetting is provided between the pressure block and the second boss.

[0007] Among them, a U-shaped groove for installing the fixed header block is formed on the first boss, a tightening screw is arranged on the back side of the fixed header block, a first bolt through hole for installing the tightening screw is formed on the first boss, and the first bolt through hole is connected with the U-shaped groove.

[0008] Wherein, a fixed header pressing plate for pressing the fixed header block is arranged on the first boss, and the fixed header pressing plate is connected to the first boss by screws.

[0009] Among them, a square groove for installing the movable character head block and a wide groove for installing the pressure block are provided on the second boss, and a movable character head pressure plate for pressing the movable character head block and the pressure block is provided on the second boss; receiving grooves for installing the elastic member are provided on both sides of the square groove, and grooves corresponding to the receiving grooves are provided at the bottom of the movable character head pressure plate. When the movable character head pressure plate is installed on the second boss, the grooves at the bottom of the movable character head pressure plate will be buckled with the corresponding receiving grooves.

[0010] Among them, a square boss is arranged on the top of the pressing block, and a recess is opened at the bottom of the movable character head pressing plate. The width of the recess is greater than the width of the square boss. When the movable character head pressing plate is installed on the second boss, the square boss is located inside the recess.

[0011] Among them, a dovetail boss for connecting with the movable character head block is arranged on one side of the pressing block, a convex character is arranged on one end face of the movable character head block, and a dovetail groove matched with the dovetail boss is opened on the other end face.

[0012] In which, the cushion block is provided with a U-shaped through groove, and a first square groove is provided on a boss on one side of the U-shaped through groove, the first square groove is connected with the U-shaped groove, and the width and depth of the first square groove are the same as those of the U-shaped groove, and a second square groove is provided on a boss on the other side of the U-shaped through groove, the second square groove is connected with the square groove, and the width and depth of the second square groove are the same as those of the square groove.

[0013] The cushion block is connected to the clamp seat by bolts, a bolt countersunk hole is provided at the bottom of the U-shaped through groove of the cushion block, and a threaded hole corresponding to the bolt countersunk hole is provided at the upper end surface of the clamp seat.

[0014] The beneficial effects of the above technical solution of the utility model are as follows:

[0015] In the above scheme, the clamp used in the special machine for embossing on both sides of the automobile door hinge is provided with a fixed header block and a movable header block. The pressing block is pushed to move by a moving mechanism, so that the movable header block presses the workpiece and the fixed header block to emboss the two sides of the workpiece. When the flat area without characters of the movable header block and the fixed header block is completely attached to the embossing surface of the workpiece, it cannot be pressed in, thereby ensuring the consistency of the embossing depth; characters can be embossed on both sides of the workpiece at the same time, which improves the processing efficiency, and because the impact of the punching machine is avoided, the service life of the embossing header is extended, the replacement frequency is reduced, and the production cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the left vehicle body;

[0017] Figure 2 A schematic diagram of a machine tool for processing car body parts;

[0018] Figure 3 The schematic diagram of the clamp used for the double-sided lettering machine of the automobile door hinge of the utility model Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the clamp used for the double-sided lettering machine of the automobile door hinge of the utility model. Figure 2 ;

[0020] Figure 5 It is a cross-sectional view of the fixture used in the double-sided lettering machine for automobile door hinges of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the clamp seat of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the cushion block of the utility model;

[0023] Figure 8 It is a structural schematic diagram of the movable character head pressing plate of the utility model;

[0024] Fig. 9 It is a structural schematic diagram of the pressing block of the utility model;

[0025] Fig.10 A top view of the pressing block of the utility model;

[0026] Fig.11 It is a structural schematic diagram of the movable character head block of the utility model.

[0027] [Reference Signs]

[0028] 100, left vehicle body; 101, left side; 102, right side; 103, deep step groove; 104, shallow step groove; 1, base; 2, gas-liquid booster cylinder; 4, positioning column; 5, positioning cylinder; 6, pressing head; 7, fixed head pressing plate; 8, movable head pressing plate; 9, pressing block; 10, fixture seat; 11, material return rod; 12, material return cylinder; 13, compression spring; 14, movable head block; 15, fixed head block; 16, cushion block; 201, U-shaped concave slot; 202, first bolt through hole; 203, accommodating slot; 204, square slot; 205, first boss; 206, second boss; 207, threaded hole; 208, wide slot; 361, first square groove; 362, second square groove; 363, bolt countersunk hole; 401, tightening screw; 801, countersunk groove; 802, second bolt through hole; 803, groove; 901, square boss; 902, plane; 903, dovetail boss; 141, dovetail groove. DETAILED DESCRIPTION

[0029] In order to make the technical problems to be solved, technical solutions and advantages of the present invention more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0030] like Figure 2~Figure 11 As shown, an embodiment of the utility model provides a clamp for a double-sided embossing machine for automobile door hinges, including a clamp seat 10, which is a stepped square block. A first boss 205 and a second boss 206 are respectively arranged on both sides of the upper end surface of the clamp seat 10. The first boss 205 and the second boss 206 are roughly rectangular. The first boss 205, the second boss 206 and the upper end surface of the clamp seat 10 form a U-shaped cavity, and a pad 16 for placing a workpiece is arranged between the first boss 205 and the second boss 206.

[0031] like Figure 4 As shown, a fixed header block 15 is arranged on the first boss 205, and a movable header block 14 is arranged on the second boss 206. The movable header block 14 is arranged opposite to the fixed header block 15, and the movable header block 14 is slidably connected to the second boss 206 and can move in a direction close to or away from the fixed header block 15.

[0032] A pressure block 9 for driving the movable header block 14 to move is also provided on the second boss 206. The pressure block 9 is located on the side of the movable header block 14 away from the fixed header block 15 and is connected to the movable header block 14. The clamp seat 10 is provided on the base 1. A moving mechanism for pushing the pressure block 9 is provided on the side of the clamp seat 10. An elastic component is provided between the pressure block 9 and the second boss 206, so that the pressure block 9 can be automatically reset.

[0033] In this embodiment, the moving mechanism is a gas-liquid booster cylinder 2, and the moving direction of the gas-liquid booster cylinder 2 is perpendicular to the left side 101 and the right side 102 of the left body part 100 to provide a power source for the clamping force. Of course, the moving mechanism can also use an oil cylinder or an electric cylinder. When the pressure head of the gas-liquid booster cylinder 2 presses the pressure block 9, it will drive the movable head block 14 to press the left side 101 of the workpiece. Due to the transmission of the force, the fixed head block 15 also presses the right side 102 of the workpiece, thereby completing the pressing of the two sides of the workpiece. When the pressure block 9 is pushed forward, the elastic component is compressed to store energy. When the pressure head of the gas-liquid booster cylinder 2 completes the pressing and retracts, the energy stored in the elastic component will act on the pressure block 9, so that the pressure block 9 drives the movable head block 14 to separate from the workpiece.

[0034] like Figure 6 As shown, a U-shaped groove 201 for installing the fixed header block 15 is provided on the first boss 205, and the opening direction of the U-shaped groove 201 is perpendicular to the side of the clamp seat 10, the width of the U-shaped groove 201 is consistent with the width of the fixed header block 15, and the depth is consistent with the thickness of the fixed header block 15. Two tightening screws 401 are arranged on the back of the fixed header block 15 to support the fixed header block 15 and adjust the exposed length of the fixed header block 15. A first bolt through hole 202 for installing the tightening screw 401 is provided on the first boss 205, and the first bolt through hole 202 is connected to the U-shaped groove 201.

[0035] like Figure 3 and Figure 6 As shown, a fixed header pressing plate 7 for pressing the fixed header block 15 is provided on the first boss 205, and the fixed header pressing plate 7 is fixedly connected to the first boss 205 by screws. Two threaded holes are opened on the upper end surface of the first boss 205, and the two threaded holes are symmetrically arranged on both sides of the U-shaped groove 201.

[0036] like Figure 6As shown, a square groove 204 for mounting the movable character block 14 is provided on the second boss 206. The square groove 204 is perpendicular to the side of the fixture seat 10 and is open upward. The width of the square groove 204 is consistent with the width of the movable character block 14 and forms a clearance fit. A wide groove 208 for mounting the pressing block 9 is also provided on the second boss 206. The width of the wide groove 208 is consistent with the width of the pressing block 9, and the depth of the wide groove 208 is greater than the depth of the square groove 204. The second boss 206 is provided with a movable character pressing plate 8 for pressing the movable character block 14 and the pressing block 9. The overall depth of the wide groove 208 is slightly greater than the thickness of the pressing block 9, so as to ensure that the pressing block 9 can still be retracted and extended freely after the movable character pressing plate 8 is fixed and pressed on the second boss 206. The elastic component is a compression spring 13, and receiving grooves 203 for installing the compression spring 13 are symmetrically arranged on both sides of the square groove 204. The bottom of the movable character head pressure plate 8 is provided with a groove 803 corresponding to the receiving groove 203 one by one. When the movable character head pressure plate 8 is installed on the second boss 206, the groove 803 at the bottom of the movable character head pressure plate 8 will be buckled with the corresponding receiving groove 203 to form a cylindrical hole.

[0037] The movable letterhead pressing plate 8 is fixedly connected to the second boss 206 by screws. A plurality of threaded holes are provided on the upper end surface of the second boss 206 , and the plurality of threaded holes are symmetrically distributed on both sides of the square groove 204 . The movable letterhead pressing plate 8 is provided with second bolt through holes 802 corresponding one-to-one to the threaded holes of the second boss 206 .

[0038] like Figure 8 and Fig. 9 As shown, a square boss 901 is provided on the top of the pressing block 9, and a sink 801 is provided on the bottom of the movable character head pressing plate 8. When the movable character head pressing plate 8 is mounted on the second boss 206, the square boss 901 is located inside the sink 801, and the width of the sink 801 is greater than the width of the square boss 901, so that the square boss 901 can move in the sink 801. When the pressing block 9 moves under the elastic force of the compression spring 13, the square boss 901 and the sink 801 can limit the movement range of the pressing block 9, thereby also limiting the movement range of the movable character head block 14.

[0039] like Fig. 9 and Fig.10 As shown, the pressing block 9 is a T-shaped symmetrical structure, and a dovetail boss 903 for connecting with the movable head block 14 is provided on one side of the pressing block 9. A plane 902 is also provided on the pressing block 9. The plane 902 is located on both sides of the dovetail boss 903. One end of the compression spring 13 abuts against the plane 902, and the other end is connected to the end of the receiving groove 203. Fig.11 As shown, the movable character head block 14 is in the shape of a rectangular parallelepiped, with a convex character on one end surface and a dovetail groove 141 matched with the dovetail boss 903 on the other end surface.

[0040] like Figure 7 As shown, the cushion block 16 is a block-shaped workpiece, whose width is consistent with the distance between the first boss 205 and the second boss 206. The cushion block 16 is provided with a U-shaped through groove, whose width is slightly wider than the workpiece to facilitate the passage of the workpiece. A first square groove 361 is provided on the boss on one side of the U-shaped through groove, and the first square groove 361 is connected with the U-shaped groove 201, and the width and depth of the first square groove 361 are the same as those of the U-shaped groove 201; a second square groove 362 is provided on the boss on the other side, and the second square groove 362 is connected with the square groove 204, and the width and depth of the second square groove 362 are the same as those of the square groove 204.

[0041] In this embodiment, the cushion block 16 is connected to the fixture seat 10 by means of hexagon socket bolts. Figure 6 and Figure 7 As shown, a bolt countersunk hole is provided at the bottom of the U-shaped through groove of the cushion block 16, and a threaded hole 207 corresponding to the bolt countersunk hole is provided on the upper end surface of the clamp seat 10.

[0042] The working process of the clamp for double-sided lettering on automobile door hinges provided by the utility model is as follows:

[0043] The left body part 1 to be embossed is placed in the U-shaped groove of the cushion block 16, the positioning cylinder 5 fixed on the side of the fixture seat 10 is extended, and the positioning column 4 fixed on the positioning cylinder 5 is moved forward in a direction perpendicular to the left side 101 and the right side 102 of the left body part 1. The pressing head 6, driven by the cylinder, presses the left body part 1 against the extended positioning column 4, thereby positioning the left body part 1.

[0044] The pressure head of the gas-liquid booster cylinder 2 moves forward to push the pressure block 9, and the pressure block 9 drives the movable head block 14 to push the left side 101 of the left body part 100 to make the workpiece translate as a whole, so that the right side 102 is close to the head face of the fixed head block 15. As the movable head block 14 continues to move forward, the two-side pressing of the left body part 100 is completed. By adjusting the compressed air pressure, the output force of the gas-liquid booster cylinder 2 is changed, and the deformation effect of the head on the workpiece is reduced.

[0045] When the pressing action is completed, the pressure head of the gas-liquid booster cylinder 2 is withdrawn, and finally the pressure head of the gas-liquid booster cylinder 2 is separated from the pressing block 9. Then the positioning column 4 and the pressing head 6 are withdrawn, and the left body part 1 is in a free state. Then the material return rod 11 moves forward under the push of the material return cylinder 12, and the left body part 1 is pushed out from the U-shaped through groove. The left body part 100 slides along the chute into the material box, and the pressing process is completed.

[0046] It should be noted that the right body part can be processed on a symmetrical machine tool. In addition, since the door part has a similar structure to the body part, the machine tool can be slightly modified and can also be used to process the door part.

[0047] In the above scheme, the fixed header block and the U-shaped groove are clearance fit, the movable header block and the square groove are clearance fit, and the pressure head of the gas-liquid booster cylinder and the movable header block are contact-pressed, so the two header blocks have a self-alignment function, ensuring that when the non-letter flat area of ​​the header block is completely attached to the workpiece pressing surface, it cannot be pressed in, thereby ensuring the consistency of the pressing depth; both sides of the workpiece can be pressed at the same time, which improves the processing efficiency, and because the impact of the punch press is avoided, the service life of the pressing header is extended, the replacement frequency is reduced, and the production cost is reduced.

[0048] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A clamp for double-sided embossing of automobile door hinges, comprising a clamp seat, characterized in that: The upper end surface of the clamp seat is provided with a first boss and a second boss, and a pad for placing a workpiece is provided between the first boss and the second boss; A fixed header block is disposed on the first boss, and a movable header block is disposed on the second boss. The movable header block is disposed opposite to the fixed header block, and the movable header block is slidably connected to the second boss and can move in a direction close to or away from the fixed header block. A pressure block for driving the movable head block to move is also provided on the second boss, and the pressure block is connected to the movable head block. A moving mechanism for pushing the pressure block is provided on the side of the clamp seat, and an elastic component for resetting is provided between the pressure block and the second boss.

2. The clamp for double-sided embossing of automobile door hinges according to claim 1 is characterized in that: The first boss is provided with a U-shaped groove for installing the fixed header block, a tightening screw is arranged on the back of the fixed header block, the first boss is provided with a first bolt through hole for installing the tightening screw, and the first bolt through hole is communicated with the U-shaped groove.

3. The fixture for double-sided embossing of automobile door hinges according to claim 2, characterized in that: The first boss is provided with a fixed header pressing plate for pressing the fixed header block, and the fixed header pressing plate is connected to the first boss via screws.

4. The fixture for double-sided embossing of automobile door hinges according to claim 2, characterized in that: The second boss is provided with a square groove for installing the movable head block and a wide groove for installing the pressing block, and the second boss is provided with a movable head pressing plate for pressing the movable head block and the pressing block; Receiving grooves for installing the elastic component are arranged on both sides of the square groove, and grooves corresponding to the receiving grooves are arranged at the bottom of the movable character head pressure plate. When the movable character head pressure plate is installed on the second boss, the grooves at the bottom of the movable character head pressure plate will be buckled with the corresponding receiving grooves.

5. The clamp for double-sided embossing of automobile door hinges according to claim 4, characterized in that: A square boss is arranged on the top of the pressing block, a recess is arranged on the bottom of the movable character head pressing plate, the width of the recess is greater than the width of the square boss, and when the movable character head pressing plate is installed on the second boss, the square boss is located inside the recess.

6. The fixture for double-sided embossing of automobile door hinges according to claim 1, characterized in that: A dovetail boss for connecting with the movable character head block is arranged on one side of the pressing block, a convex character is arranged on one end surface of the movable character head block, and a dovetail groove matched with the dovetail boss is opened on the other end surface.

7. The fixture for double-sided embossing of automobile door hinges according to claim 4, characterized in that: The pad block is provided with a U-shaped through groove, and a first square groove is provided on a boss on one side of the U-shaped through groove, the first square groove is connected with the U-shaped groove, and the width and depth of the first square groove are the same as those of the U-shaped groove, and a second square groove is provided on a boss on the other side of the U-shaped through groove, the second square groove is connected with the square groove, and the width and depth of the second square groove are the same as those of the square groove.

8. The clamp for double-sided embossing of automobile door hinges according to claim 7, characterized in that: The cushion block is connected to the clamp seat by bolts, a bolt countersunk hole is provided at the bottom of the U-shaped through groove of the cushion block, and a threaded hole corresponding to the bolt countersunk hole is provided on the upper end surface of the clamp seat.

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