A clamping and positioning mechanism for punching inner ribs of an energy absorption box of an automobile

Abstract

The utility model discloses an energy absorbing box inner muscle punch -cut clamping positioning mechanism, including pressing plate, locating seat, guide block, clamping block, base and upper loading plate, a base and two locating seats are fixedly installed on the machine table of punch -cut machine, and the upper portion fixed mounting of punch -cut machine has telescopic hydraulic cylinder, and the upper portion fixed mounting of pressing plate has equal -height cover, and the upper portion sliding installation of equal -height cover is in the upper loading plate, and the piston rod of telescopic hydraulic cylinder is fixedly connected with the upper loading plate. This clamping positioning mechanism can complete the freedom of the up and down and left and right directions of the energy absorbing box of car through a telescopic hydraulic cylinder, and then improves the clamping positioning precision when punch -cut of the energy absorbing box of car, improves the precision of the notch punch -cut operation of the energy absorbing box of car, and has the advantages that the control mode is simple.

Description

Technical Field

[0001] This utility model belongs to the field of automotive energy-absorbing box processing technology, and in particular relates to a punching, clamping and positioning mechanism for the inner rib of an automotive energy-absorbing box. Background Technology

[0002] The automotive energy-absorbing box absorbs most of the collision energy, effectively reducing the impact force transmitted to the rear longitudinal beams and passenger compartment. This helps maintain the structural integrity of the passenger compartment and protects the safety of the passengers. The internal ribs of the energy-absorbing box increase its structural strength, and notches are punched into these ribs to facilitate the positioning and installation of the energy-absorbing box. During the punching and clamping of the internal ribs, the energy-absorbing box needs to be clamped and fixed in both vertical and horizontal directions to improve the precision of the punching operation. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a mechanism that can clamp and position the car energy-absorbing box in the up-down and left-right directions by means of a telescopic hydraulic cylinder during the internal rib punching operation.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a punching, clamping, and positioning mechanism for the inner rib of an automotive energy-absorbing box, comprising a pressure plate, a positioning seat, a guide block, a clamping block, a base, and an upper loading plate. One base and two positioning seats are fixedly installed on the machine platform of a punching machine. A telescopic hydraulic cylinder is fixedly installed on the upper part of the punching machine. A height-equalizing sleeve is fixedly installed on the upper part of the pressure plate. The upper part of the height-equalizing sleeve is slidably installed in the upper loading plate. The piston rod of the telescopic hydraulic cylinder is fixedly connected to the upper loading plate. A nitrogen spring is also fixedly installed in the upper loading plate. The height-equalizing sleeve of the nitrogen spring slides through the pressure plate. A pressure block is fixedly installed on the bottom surface of the pressure plate. The guide block is fixedly installed on the positioning seat. The guide block is provided with an inclined guide dovetail groove. The dovetail structure of the clamping block is slidably installed in the guide dovetail groove of the guide block.

[0005] Preferably, it also includes a spring telescopic rod, the sleeve of which is fixedly installed in the positioning seat, and the telescopic rod of the spring telescopic rod acts on the bottom surface of the clamping block.

[0006] Preferably, the top of the equal-height sleeve is fixedly fitted with an anti-detachment stop ring.

[0007] Preferably, a pad is screwed and fixedly installed on the positioning seat, and the guide block is screwed and fixedly installed on the pad.

[0008] Compared with the prior art, the advantages of this utility model are: this clamping and positioning mechanism can restrict the degrees of freedom of the car energy-absorbing box in the up and down and left and right directions by using a telescopic hydraulic cylinder, thereby improving the clamping and positioning accuracy of the car energy-absorbing box during punching and improving the accuracy of the notch punching operation of the car energy-absorbing box. It also has the advantage of simple control method. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings.

[0010] Figure 1 This is a perspective view of the present invention.

[0011] Figure 2 This is a top view of the present invention.

[0012] Figure 3 yes Figure 2 A sectional view along the AA direction.

[0013] Figure 4 This is a three-dimensional view of the top of the guide block and clamping block mounting structure.

[0014] Figure 5 This is a three-dimensional view of the bottom of the guide block and clamping block mounting structure. Detailed Implementation

[0015] The present invention will now be described in detail with reference to specific embodiments: like Figures 1 to 5 The illustrated automotive energy-absorbing box inner rib punching, clamping, and positioning mechanism includes a pressure plate 1, positioning seats 3, guide blocks 4, clamping blocks 5, a base 7, and an upper loading plate 8. One base 7 and two positioning seats 3 are fixedly mounted on the punching machine's platform. A telescopic hydraulic cylinder is fixedly mounted on the upper part of the punching machine. Several equal-height sleeves 82 are fixedly mounted inside the upper loading plate 8. A first guide post is slidably mounted inside the equal-height sleeves 82, with its lower end fixedly connected to the pressure plate 1. A guide post 83 is also fixedly mounted on the pressure plate 1, with its upper end slidably mounted inside the upper loading plate 8. The piston rod of the hydraulic cylinder is fixedly connected to the upper plate 8. A nitrogen spring 81 is also fixedly installed inside the upper plate 8. The cylinder body of the nitrogen spring 81 slides through the pressure plate 1. The piston rod of the nitrogen spring 81 is fixedly connected to the pressure plate 1. A pressure block 11 is fixedly installed on the bottom surface of the pressure plate 1. A guide block 4 is fixedly installed on the positioning seat 3. A guide dovetail groove with an inclined structure is provided on the guide block 4. The dovetail structure of the clamping block 5 is slidably installed in the guide dovetail groove of the guide block 4. A limit block 84 that limits the downward movement limit position of the pressure plate 1 is also fixedly installed on the base 7.

[0016] It also includes a spring telescopic rod 6, the sleeve of which is fixedly installed in the positioning seat 3. The telescopic rod of the spring telescopic rod 6 acts on the bottom surface of the clamping block 5. The telescopic rod of the spring telescopic rod 6 can push the clamping block 5 upward to reset it, so that the clamping block 5 is separated from the car energy-absorbing box 10, so as to facilitate loading and unloading.

[0017] The pressure plate 1 has a first connecting rod 91 fixedly installed at the four corners of its bottom. A guide rod is fixedly installed at the bottom of the first connecting rod 91. A second connecting rod 92 corresponding to the first connecting rod 91 is fixedly installed on the punching machine platform. A guide hole is provided in the second connecting rod 92. The guide rod is slidably installed in the guide hole. The straightness of the upper plate 8 when moving up and down is improved by the cooperation between the guide rod and the guide hole.

[0018] A pad 31 is screwed and fixedly installed on the positioning seat 3, and the guide block 4 is screwed and fixedly installed on the pad 31. Since the guide block 4 has a short replacement cycle after wear, frequent replacement of the guide block 4 will cause wear on the threaded hole of the pad 31. After the thread of the pad 31 is worn and cannot be used, it can be disassembled and replaced separately, and the positioning seat 3 can continue to be used.

[0019] The telescopic hydraulic cylinder pushes the upper plate 8 to move. The nitrogen spring 81 on the upper plate 8 pushes the pressure plate 1 and the pressure block 11 to move upward until the pressure plate 11 contacts the limit block 84 and stops moving downward. The two pressure blocks 11 push the two clamping blocks 5 to move downward along the guide dovetail groove of the inclined structure of the guide block 4. When the clamping blocks 5 move downward, they move closer to the car energy absorption box 10 until the two clamping blocks 5 clamp and position the left and right sides of the car energy absorption box 10. At this time, the bottom surface of the pressure plate 11 presses against the top surface of the car energy absorption box 10, and the bottom surface of the car energy absorption box 10 is pressed and positioned in the positioning groove at the top of the base 7. The pressure plate 11 and the base 7 cooperate to press and position the upper and lower surfaces of the car energy absorption box 10. The nitrogen spring 81 provides stable pressure to the pressure plate 1, which can avoid the problem of the car energy absorption box 10 being loosened due to vibration.

Claims

1. A punching, clamping, and positioning mechanism for the inner rib of an automotive energy-absorbing box, characterized in that: The machine includes a pressure plate (1), a positioning seat (3), a guide block (4), a clamping block (5), a base (7), and an upper loading plate (8). One base (7) and two positioning seats (3) are fixedly installed on the machine platform of the punching machine. A telescopic hydraulic cylinder is fixedly installed on the upper part of the punching machine. Several equal height sleeves (82) are fixedly installed inside the upper loading plate (8). The first guide post is slidably installed inside the equal height sleeve (82). The lower end of the first guide post is fixedly connected to the pressure plate (1). A guide post (83) is also fixedly installed on the pressure plate (1). The upper end of the guide post (83) is slidably installed inside the upper loading plate (8). The piston rod of the telescopic hydraulic cylinder is connected to the upper loading plate. (8) Fixed connection, a nitrogen spring (81) is also fixedly installed inside the upper plate (8). The cylinder of the nitrogen spring (81) slides through the pressure plate (1). The piston rod of the nitrogen spring (81) is fixedly connected to the pressure plate (1). A pressure block (11) is fixedly installed on the bottom surface of the pressure plate (1). A guide block (4) is fixedly installed on the positioning seat (3). A guide dovetail groove with an inclined structure is provided on the guide block (4). The dovetail structure of the clamping block (5) is slidably installed in the guide dovetail groove of the guide block (4). A limiting block (84) that limits the downward movement limit position of the pressure plate (1) is also fixedly installed on the base (7).

2. The automotive energy-absorbing box inner rib punching, clamping, and positioning mechanism according to claim 1, characterized in that: It also includes a spring telescopic rod (6), the sleeve of which is fixedly installed in the positioning seat (3), and the telescopic rod of the spring telescopic rod (6) acts on the bottom surface of the clamping block (5).

3. The automotive energy-absorbing box inner rib punching, clamping, and positioning mechanism according to claim 1, characterized in that: The pressure plate (1) has a first connecting rod (91) fixedly installed at the four corners of its bottom. A guide rod is fixedly installed at the bottom of the first connecting rod (91). A second connecting rod (92) corresponding to the first connecting rod (91) is fixedly installed on the punching machine platform. A guide hole is provided in the second connecting rod (92), and the guide rod is slidably installed in the guide hole.

4. The automotive energy-absorbing box inner rib punching, clamping, and positioning mechanism according to claim 1, characterized in that: A pad (31) is screwed and fixedly installed on the positioning seat (3), and the guide block (4) is screwed and fixedly installed on the pad (31).

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