A drilling clamp for the front side of an automobile gearbox

Abstract

The utility model relates to the technical field of automobile gearbox body drilling processing, especially to a kind of automobile gearbox body front side drilling fixture, it can make automobile gearbox body clamping and fixing more reliable, and practicality is higher;It includes base, support frame fixed mounting is in the middle of base top rear side, L-shaped guide plate is fixedly connected between the left and right ends of support frame and base top, two groups of L-shaped guide plate are slidably sleeved with rectangular guide sleeve, electric telescopic rod is fixedly installed on support frame, connecting plate is fixedly connected at the output end of electric telescopic rod, the upper connecting shaft of symmetrical fixed connection is connected in the two sides of connecting plate front end, transmission rod is rotatably sleeved on the two groups of upper connecting shaft, the lower connecting shaft of fixed connection is connected in the rear end of two groups of rectangular guide sleeve, transmission rod is rotatably sleeved on lower connecting shaft away from upper connecting shaft end.

Description

Technical Field

[0001] This utility model relates to the technical field of drilling machining of automotive gearbox housings, and in particular to a drilling fixture for the front side of an automotive gearbox housing. Background Technology

[0002] The car transmission is a very important component of a vehicle. It can change the gear ratio, thereby increasing the torque and speed of the drive wheels. The front side of the transmission housing is usually equipped with a shaft end cover, which is installed by bolts to the screw holes on the front side of the transmission housing.

[0003] When drilling screw holes on the front side of the gearbox housing, a clamp is used to fix the gearbox housing in order to improve the drilling accuracy. In the prior art, the utility model patent with patent announcement number CN211589271U discloses a drilling clamp for the front side of the gearbox housing of a new energy vehicle. Although the drilling clamp can clamp and fix the gearbox housing of the car during use, in actual operation, it only drives the two clamping plates to move through the drive mechanism to clamp the two sides of the gearbox housing, which makes the gearbox housing not securely fixed and lacks practicality. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a drilling fixture for the front side of an automotive gearbox housing that can more reliably clamp and fix the gearbox housing and has higher practicality.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drilling fixture for the front side of an automotive gearbox housing, comprising a base, a drive mechanism, and a fixture assembly. The drive mechanism includes a support frame, which is fixedly installed at the rear center of the top of the base. L-shaped guide plates are fixedly connected to the top of the base at both ends of the support frame. Rectangular guide sleeves are slidably fitted onto both sets of L-shaped guide plates. An electric telescopic rod is fixedly installed on the support frame. A connecting plate is fixedly connected to the output end of the electric telescopic rod. Upper connecting shafts are symmetrically fixedly connected to both sides of the front end of the connecting plate. Transmission rods are rotatably sleeved on both sets of upper connecting shafts. The rear end of each rectangular guide sleeve is fixedly connected to a lower connecting shaft. The end of the transmission rod away from the upper connecting shaft is rotatably mounted on the lower connecting shaft. The clamping assembly includes two clamping plates and a crossbar. The rear ends of the two clamping plates are respectively fixedly connected to the front ends of the two sets of rectangular guide sleeves, and the bottom ends of the clamping plates are in contact with the top of the base. Side clamping torsion bolts are screwed into the two corners on the front side of the two clamping plates. The left and right ends of the crossbar are provided with storage grooves extending inward. Two sets of L-shaped support rods are symmetrically slidably installed on the crossbar through the cooperation of the storage grooves. The two sets of L-shaped support rods are symmetrically fixedly connected to the top of the two sets of clamping plates. A top clamping knob bolt is screwed into the middle of the crossbar.

[0007] Preferably, the top left and right sides of the base are fixedly connected to support plates, the support plates are provided with sliding holes, and the outer sides of the two clamping plates are fixedly connected to guide rods, and the two sets of guide rods are slidably installed on the two sets of support plates respectively by cooperating with the sliding holes.

[0008] Preferably, rubber pads are fixedly connected to the inner sides of both clamping plates.

[0009] Preferably, the outer ends of both sets of guide rods are fixedly connected to a limiting platform.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the car transmission housing is placed on the base with the front side facing forward and the rear side abutting against the front end of the support frame and L-shaped guide plate. The height of the L-shaped support rod and crossbar is higher than the top of the car transmission housing. By activating the electric telescopic rod, the two clamping plates can be moved inward to clamp the two sides of the car transmission housing. Then, the side clamping screws at the corners of the two clamping plates are used to further clamp the car transmission housing. Finally, by turning the top clamping knob bolt, the top clamping knob bolt presses the car transmission housing tightly from above, thereby clamping the car transmission housing more comprehensively. The front side is left open for drilling, making the car transmission housing clamped and fixed more securely and more practical. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the rear-view axonometric structure of this utility model;

[0013] Figure 3 This is an isometric sectional view of the crossbar, L-shaped support rod, and top clamping knob bolt in this utility model.

[0014] Figure 4 This is a schematic diagram of the rear-view partial axonometric structure of this utility model;

[0015] The following are marked in the attached diagram: 1. Base; 2. Clamping plate; 3. Rectangular guide sleeve; 4. Support frame; 5. L-shaped guide plate; 6. Side clamping knob bolt; 7. L-shaped support rod; 8. Crossbar; 9. Top clamping knob bolt; 10. Electric telescopic rod; 11. Connecting plate; 12. Upper connecting shaft; 13. Transmission rod; 14. Lower connecting shaft; 15. Support plate; 16. Guide rod; 17. Rubber pad; 18. Limiting platform. Detailed Implementation

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0017] Example

[0018] Please see Figures 1-4 This utility model discloses a drilling fixture for the front side of an automotive gearbox housing, comprising a base 1, a support frame 4, two clamping plates 2, and a crossbar 8. The support frame 4 is fixedly installed at the middle of the rear top of the base 1. L-shaped guide plates 5 are fixedly connected between the left and right ends of the support frame 4 and the top of the base 1. Rectangular guide sleeves 3 are slidably fitted on both sets of L-shaped guide plates 5. An electric telescopic rod 10 is fixedly installed on the support frame 4. A connecting plate 11 is fixedly connected to the output end of the electric telescopic rod 10. The front ends of the connecting plate 11 are symmetrical on both sides. The upper connecting shaft 12 is fixedly connected, and a transmission rod 13 is rotatably sleeved on each of the two sets of upper connecting shafts 12. The rear ends of the two sets of rectangular guide sleeves 3 are fixedly connected to the lower connecting shaft 14. The end of the transmission rod 13 away from the upper connecting shaft 12 is rotatably sleeved on the lower connecting shaft 14. The rear ends of the two clamping plates 2 are respectively fixedly connected to the front ends of the two sets of rectangular guide sleeves 3, and the bottom end of the clamping plate 2 contacts the top end of the base 1. The two corners on the front side of the two clamping plates 2 are screwed with side clamping torsion bolts 6. The crossbar 8 has inwardly extending openings at both ends. The storage slot and crossbar 8 are symmetrically and slidably mounted with two sets of L-shaped support rods 7. The two sets of L-shaped support rods 7 are symmetrically and fixedly connected to the tops of two sets of clamping plates 2. A top clamping knob bolt 9 is screwed into the middle of the crossbar 8. In use, the car transmission housing is placed on the base 1 with the front side facing forward and the rear side abutting against the front end of the support frame 4 and the L-shaped guide plate 5. The height of the L-shaped support rods 7 and the crossbar 8 is higher than the top of the car transmission housing. The electric telescopic rod 10 can be activated to... The two clamping plates 2 move inward to clamp the two sides of the car transmission housing. Then, the side clamping screws 6 at the corners of the two clamping plates 2 provide auxiliary clamping for fixing the car transmission housing. Finally, by turning the top clamping knob bolts 9, the top clamping knob bolts 9 press the car transmission housing tightly from above, thereby clamping the car transmission housing more comprehensively. The front side is left open for drilling, making the car transmission housing clamped and fixed more securely and more practical.

[0019] Support plates 15 are fixedly connected to the top left and right sides of the base 1. Sliding holes are provided on the support plates 15. Guide rods 16 are fixedly connected to the outer sides of the two clamping plates 2. The two sets of guide rods 16 are slidably installed on the two sets of support plates 15 respectively through cooperation with the sliding holes. When the clamping plates 2 move, the clamping plates 2 drive the guide rods 16 to slide along the support plates 15. Through the guiding cooperation of the guide rods 16 and the support plates 15, the stability of the clamping plates 2 when moving can be further enhanced.

[0020] Both clamping plates 2 have rubber pads 17 fixedly connected to their inner sides; by setting the rubber pads 17, the clamping plates 2 can protect the surface of the gearbox when clamping the gearbox, increase friction, and provide cushioning during clamping.

[0021] Both sets of guide rods 16 have a fixed limiting platform 18 at their outer ends. By setting the limiting platform 18, when the clamping plate 2 drives the guide rod 16 to move inward, it can limit the guide rod 16 and prevent the guide rod 16 from separating from the support plate 15.

[0022] This utility model discloses a drilling fixture for the front side of an automotive gearbox housing. Its working principle is as follows: The automotive gearbox housing is placed on the base 1 with its front side facing forward and its rear side resting against the front end of the support frame 4 and the L-shaped guide plate 5. The height of the L-shaped support rod 7 and the crossbar 8 is higher than the top of the automotive gearbox housing. By activating the electric telescopic rod 10, the connecting plate 11 is pushed upward. The connecting plate 11, through the transmission cooperation between the upper connecting shaft 12, the transmission rod 13, and the lower connecting shaft 14, drives the rectangular guide sleeve 3 to slide inward on the L-shaped guide plate 5. This, in turn, causes the rectangular guide sleeve 3 to move the clamping plate 2 inward. Both clamping plates 2 can move inward simultaneously, and the clamping plates 2 also drive the L-shaped support rod 7. Slide inward along the storage groove, and clamp the two sides of the car transmission housing through the two clamping plates 2. After clamping the two sides of the car transmission housing through the two clamping plates 2, due to the irregular shape of the transmission housing, there is still a distance between the side clamping screws 6 on the clamping plates 2 and the two sides of the car transmission housing. At this time, by turning the side clamping screws 6, the side clamping screws 6 are tightened to the positions indicated on the two sides of the car transmission housing, which provides auxiliary clamping for fixing the car transmission housing. Finally, by turning the top clamping knob bolt 9, the top clamping knob bolt 9 is pressed into the top position of the car transmission housing, thereby clamping the car transmission housing more comprehensively, completing the fixing of the car transmission housing, and leaving the front side for drilling.

[0023] The drilling fixture for the front side of an automotive gearbox housing of this utility model has common mechanical installation, connection and setting methods. As long as it can achieve the beneficial effect, it can be implemented. The electric telescopic rod 10 of the drilling fixture for the front side of an automotive gearbox housing of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A drilling fixture for the front side of an automotive gearbox housing, comprising a base (1), characterized in that, It also includes drive mechanisms and clamping assemblies; The drive mechanism includes a support frame (4), which is fixedly installed at the middle of the rear side of the top of the base (1). L-shaped guide plates (5) are fixedly connected between the left and right ends of the support frame (4) and the top of the base (1). Rectangular guide sleeves (3) are slidably fitted on both sets of L-shaped guide plates (5). An electric telescopic rod (10) is fixedly installed on the support frame (4). A connecting plate (11) is fixedly connected to the output end of the electric telescopic rod (10). Upper connecting shafts (12) are symmetrically fixedly connected on both sides of the front end of the connecting plate (11). A transmission rod (13) is rotatably fitted on both sets of upper connecting shafts (12). A lower connecting shaft (14) is fixedly connected to the rear end of both sets of rectangular guide sleeves (3). The end of the transmission rod (13) away from the upper connecting shaft (12) is rotatably fitted on the lower connecting shaft (14). The clamping assembly includes two clamping plates (2) and a crossbar (8) for clamping and fixing the automotive gearbox housing.

2. The drilling fixture for the front side of an automotive gearbox housing as described in claim 1, characterized in that, The rear ends of the two clamping plates (2) are respectively fixedly connected to the front ends of the two sets of rectangular guide sleeves (3), and the bottom end of the clamping plate (2) contacts the top end of the base (1). The two corners on the front side of the two clamping plates (2) are screwed with side clamping torsion bolts (6). The left and right ends of the crossbar (8) are provided with storage grooves extending inward. The crossbar (8) is symmetrically slidably installed with two sets of L-shaped support rods (7) through the cooperation of the storage grooves. The two sets of L-shaped support rods (7) are symmetrically fixedly connected to the top ends of the two sets of clamping plates (2). The middle of the crossbar (8) is screwed with a top clamping torsion bolt (9).

3. The drilling fixture for the front side of an automotive gearbox housing as described in claim 2, characterized in that, The base (1) has support plates (15) fixedly connected to the top left and right sides. The support plates (15) have sliding holes. The two clamping plates (2) have guide rods (16) fixedly connected to their outer sides. The two sets of guide rods (16) are slidably installed on the two sets of support plates (15) respectively by cooperating with the sliding holes.

4. The drilling fixture for the front side of an automotive gearbox housing as described in claim 3, characterized in that, Both of the clamps (2) have rubber pads (17) fixedly connected to their inner sides.

5. A drilling fixture for the front side of an automotive gearbox housing as described in claim 4, characterized in that, Both sets of guide rods (16) have a limiting platform (18) fixedly connected to their outer ends.

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